Vibration isolator for oral irrigator

Abstract

In one embodiment, an oral irrigator is disclosed. The oral irrigator can include a housing, a drive assembly positioned within the housing, a pump assembly coupled to the drive assembly, and an isolator assembly coupled to at least one of the drive assembly or the pump assembly and configured to dampen vibrations generated by either or both of the drive assembly or the pump assembly. The isolator assembly includes a chassis operably coupled to a portion of at least one of the drive assembly or the pump assembly, an engagement arm coupled to the chassis and extending outwardly therefrom, and a damper positioned between the chassis and a portion of the housing, the damper including a pocket defined therein and configured to support the isolator assembly within the housing, wherein the engagement arm engages an engagement surface of the damper that is separated from a pocket surface defining the pocket.

Description

[0001] Cross-references to related applications This application claims priority to U.S. Provisional Patent Application No. 63 / 441,628, filed January 27, 2023, entitled “Vibration Isolator for Oral Irrigators,” and U.S. Provisional Patent Application No. 63 / 538,261, filed September 13, 2023, entitled “Oral Irrigator,” which are hereby incorporated herein by reference in their entirety for all purposes. Technical Field

[0002] This disclosure generally relates to oral health care devices, such as oral irrigators. Background Technology

[0003] Many people use mouth irrigators and other electronic oral care devices, such as toothbrushes, to maintain and improve their oral health. Many mouth irrigators include an electric pump that pumps fluid from a reservoir or other fluid supply source to the handle. The pump assembly and drive assembly used to operate the pump typically include a motor, pump and / or gear housing, and various linkages. During operation, the pump assembly components can generate vibration and noise due to moving parts; for example, a motor can generate vibration as its drive shaft rotates. Vibration can often penetrate to the mouth irrigator housing and other external components, generating noise (e.g., rattling of parts) and causing an unpleasant user experience, and causing wear due to the movement of moving parts. Therefore, there is a need for improved vibration isolators for the pump assembly and / or drive assembly of mouth irrigators and other oral care devices. Summary of the Invention

[0004] In one embodiment, an oral irrigator is disclosed. The oral irrigator may include a housing, a drive assembly positioned within the housing, a pump assembly coupled to the drive assembly, and an isolator assembly coupled to at least one of the drive assembly or the pump assembly and configured to dampen vibrations generated by either or both of the drive assembly or the pump assembly. The isolator assembly includes a frame operatively coupled to a portion of at least one of the drive assembly or the pump assembly, an engagement arm coupled to the frame and extending outwardly from the frame, and a damper positioned between a portion of the frame and the housing, the damper including a recess defined therein and configured to support the isolator assembly within the housing, wherein the engagement arm engages an engagement surface of the damper, the engagement surface being separate from the recess surface defining the recess.

[0005] Optionally, in some embodiments, the mating surface forms the outer surface of the damper.

[0006] Alternatively, in some embodiments, the outer surface is the top surface of the damper and is positioned above the recessed surface.

[0007] Alternatively, in some embodiments, the connecting arm is connected to the damper at a location other than the recess.

[0008] Optionally, in some embodiments, the engagement arm includes a first engagement arm and a second engagement arm, wherein the first engagement arm contacts the engagement surface of the damper, and the second engagement arm is positioned adjacent to the recessed surface of the damper.

[0009] Optionally, in some embodiments, the second engaging arm is positioned within the recess, and the engaging surface is positioned above the recess, such that the first engaging arm is positioned above the recess.

[0010] Optionally, in some embodiments, the recessed surface includes a first recessed surface, a second recessed surface, and a third recessed surface, wherein the second engaging arm contacts the first recessed surface and the third recessed surface, but does not contact the second recessed surface.

[0011] Optionally, in some embodiments, the mating surface is positioned above the recess, and the first recess surface forms the inner surface of the recess, and the third recess surface forms the bottom inner surface of the recess; and the second mating arm is at least partially received within the recess.

[0012] Optionally, in some embodiments, the housing includes a mounting surface, and the damper includes a mounting head that receives an orifice through the mounting surface, and the damper supports the frame above the mounting surface.

[0013] Alternatively, in some embodiments, the rack does not contact the mounting surface.

[0014] Alternatively, in some embodiments, the mounting surface defines the bottom surface of the housing.

[0015] Optionally, in some embodiments, the frame is operatively coupled to at least one of: a drive shaft of a drive assembly; one or more gears of a drive assembly; a connecting arm of a pump assembly; or a piston of a pump assembly.

[0016] Alternatively, in some embodiments, the rack further defines a gearbox for receiving gears for driving components.

[0017] Optionally, in some embodiments, the oral irrigator includes a stop coupled to at least one of a damper or an engagement arm, and configured to restrict movement of the engagement arm relative to the damper in at least one direction.

[0018] Optionally, in some embodiments, the recess is a first recess, and the damper includes a second recess, wherein an engagement surface is formed in the second recess, and an engagement arm is received at least partially within the second recess.

[0019] In one example, an oral irrigator is disclosed. The oral irrigator includes a housing, a vibration generating member positioned within the housing, and an isolator assembly connected to the vibration generating member. The isolator assembly includes a frame connected to the vibration generating member, an engagement arm connected to the frame, and a damper positioned between the frame and the housing, wherein the engagement arm engages the top surface of the damper, and the bottom surface of the damper engages the housing.

[0020] Optionally, in some embodiments, the vibration generating component includes a portion of a drive assembly or pump assembly for an oral irrigator.

[0021] Optionally, in some embodiments, the engagement arm includes a first engagement arm and a second engagement arm, wherein the first engagement arm engages the top surface of the damper, and the second engagement arm engages another surface of the damper that is not the top surface.

[0022] Optionally, in some embodiments, the damper further includes a recess defining a passage through its sidewalls.

[0023] Optionally, in some embodiments, the engagement arm includes a first engagement arm, and the isolator assembly includes a second engagement arm, wherein the second engagement arm is at least partially received within the recess.

[0024] Optionally, in some embodiments, the thickness of the second engaging arm is less than the height of the recess.

[0025] Optionally, in some embodiments, at least one of the damper or engagement arm includes a stop to limit movement of the engagement arm relative to the damper in at least one direction.

[0026] In one example, an oral irrigator is disclosed. The oral irrigator includes a base plate, a frame, a vibration generating member supported by the frame, and a damper that separates the frame from the base plate to reduce vibration transmission from the vibration generating member to the base plate. The damper includes a body and a first groove and a second groove defined on a side of the body. A portion of the frame is received in the first groove, and the second groove is positioned between the first groove and the base plate to reduce vibration transmission from the base plate.

[0027] Optionally, in some embodiments, the first slot and the second slot form a continuous space in the side of the damper body, such that a portion of the frame occupies the first slot and the second slot is positioned directly below the portion of the frame.

[0028] Alternatively, in some embodiments, the second groove is separated from the first groove by a portion of the damper's body.

[0029] Alternatively, in some embodiments, the frame includes a connecting arm, and a portion of the frame includes a portion of the connecting arm.

[0030] Alternatively, in some embodiments, the second groove is separated from the engagement arm by a portion of the damper's body.

[0031] Optionally, in some embodiments, the engagement arm includes a first engagement arm, wherein the frame further includes a second engagement arm, and wherein a portion of the damper body is positioned between the first engagement arm and the second engagement arm.

[0032] Optionally, in some embodiments, the first engaging arm is positioned above a portion of the damper body, and the second engaging arm is positioned below a portion of the damper body in the first groove.

[0033] Those skilled in the art will understand that each of the aspects and features of this disclosure may be advantageously used alone in some cases, or in combination with other aspects and features of this disclosure in others. Therefore, a single aspect may be claimed alone or in combination with other aspects and features. Consequently, this disclosure is merely exemplary in nature and is in no way intended to limit the claims or their application or use. It will be understood that structural and / or logical changes may be made without departing from the spirit and scope of this disclosure.

[0034] This disclosure is set forth in various levels of detail, and the inclusion or exclusion of elements, components, etc., in this invention is not intended to limit the scope of the claimed subject matter. In some cases, details that are unnecessary for understanding this disclosure or that make other details difficult to understand may be omitted. Furthermore, for clarity, detailed descriptions of certain features will not be elaborated where they would be obvious to those skilled in the art, so as not to obscure the description of this disclosure. The claimed subject matter is not necessarily limited to the arrangements shown herein, wherein the scope of this disclosure is defined only by the appended claims. Attached Figure Description

[0035] The description will be more fully understood with reference to the following figures, in which components may be drawn out of scale. These figures present various embodiments of the oral irrigator and / or vibration isolator described herein and should not be construed as a complete description of the scope of the claimed features.

[0036] Figure 1 This is an isometric view of an oral irrigator including the isolator assembly.

[0037] Figure 2A This is a top-down isometric view of the isolator assembly.

[0038] Figure 2B This is a top plan view of the isolator assembly.

[0039] Figure 3 This is the exploded view of the isolator component.

[0040] Figure 4 It is along Figure 2A The cross-sectional view of the isolator assembly is taken by line 4-4.

[0041] Figure 5A This is a top-down exploded view of the isolator component.

[0042] Figure 5B This is a bottom isometric view of the isolator assembly, with the tail section connected to the damper.

[0043] Figure 5C This is an isometric view of the isolator assembly from below, with the tail section removed.

[0044] Figure 6A This is a top isometric view of another embodiment of the isolator assembly.

[0045] Figure 6B yes Figure 6A Side elevation view of the isolator assembly.

[0046] Figure 6C yes Figure 6A Top plan view of the isolator component.

[0047] Figure 7 It is along Figure 6A The line 7-7 is cut from Figure 6A A cross-sectional view of the isolator component.

[0048] Figure 8 It is along Figure 6A The line 8-8 in the middle is cut off Figure 6A A cross-sectional view of the isolator component.

[0049] Figure 9 It is along Figure 6C The line 9-9 in the middle is cut off Figure 9 A cross-sectional view of the isolator component.

[0050] Figure 10 This is a cross-sectional view of an instance of an isolator assembly taken along a line similar to 9-9.

[0051] Figure 11 This is a cross-sectional view of an instance of an isolator assembly taken along a line similar to 9-9.

[0052] Figure 12 This is a perspective view of an embodiment of an oral irrigator including an isolator assembly.

[0053] Figure 13 yes Figure 12 Exploded view of an oral irrigator.

[0054] Figure 14A It is along Figure 12 The line 14A-14A is cut off. Figure 12 A cross-sectional view of an oral irrigator.

[0055] Figure 14B yes Figure 14A An enlarged view of the cross-sectional view.

[0056] Figure 15A It is used for Figure 12 Top isometric view of the pump housing of the oral irrigator.

[0057] Figure 15B yes Figure 15A A top plan view of the pump casing.

[0058] Figure 16 It is used for Figure 12 A top plan view of the base of the lower housing of the oral irrigator.

[0059] Figure 17 yes Figure 12 A partial isometric view of an oral irrigator.

[0060] Embodiments of the invention and their advantages are best understood by referring to the following detailed description. It should be recognized that similar reference numerals are used to identify one or more similar elements shown in the figures. Detailed Implementation

[0061] Embodiments of this disclosure relate to components of oral irrigators that may include improved constructions for vibration isolators or dampers that may be used in conjunction with one or more pump assemblies, pump housings, and / or drive assemblies, all of which may be used together (as shown in the various figures) or separately depending on the type of oral irrigator (e.g., countertop versus handheld), spacing / size, etc. In this regard, any discussion of particular elements, features, components, assemblies, etc., should be understood as independent elements or those that may be integrated into a system. Accordingly, while the discussions presented herein relate to oral irrigators, the concepts and embodiments are applicable to other types of oral care devices, such as, but not limited to, brushing devices, combined irrigator-brushing devices, or other elements that can pump fluid from one location (such as a reservoir) to another.

[0062] In some embodiments, an isolator assembly for use in oral care devices (such as oral irrigators) for damping vibrations and / or reducing noise (e.g., generated by drive components and / or pump components) is disclosed. The isolator assembly may include a frame coupled to and / or receiving one or more vibration-inducing components, such as drive components or pump components. The frame may include plates or surfaces for coupling to various components, and / or may include sidewalls and / or define a housing depending on the desired structure of the drive component or pump assembly. The frame may include one or more engaging arms coupled to a damper, wherein the damper couples the frame to a mounting surface, such as the surface of the housing of an oral irrigator or a different surface. The damper separates the frame from the mounting surface, for example, defining a gap between two components such that the frame contacts the mounting surface via the damper.

[0063] In many embodiments, the isolator assembly may include two engaging arms, wherein a first engaging arm contacts a first surface of the damper (e.g., a top surface or engagement surface), and a second engaging arm abuts or contacts a second and / or third surface of the damper (e.g., a recessed surface). For example, the damper may include a slot or recess, wherein the second arm is partially received within the recess and the first engaging arm is located on a top surface above the recess. In this manner, the engaging arms transfer the load of the rack to the damper. In some embodiments, the recess reduces the cross-sectional thickness of certain portions of the damper (such as those between the first engaging arm and the housing), and this reduced thickness can contribute to increased vibration damping by introducing increased flexibility into the joint connection and including a longer transmission path from the first engaging arm to the housing.

[0064] The connecting arm can be formed in various configurations and can extend directly from the frame or be additionally attached to the frame. Similarly, the connecting arm can be positioned, angled, and / or structurally fixed based on space constraints within the oral irrigator housing, requirements of the drive assembly or pump assembly, etc.

[0065] It should be noted that the connecting arm and damper can be considered as isolation mounts, and for the device, any number of isolation mounts can exist depending on the load, space constraints, etc. In one embodiment, three isolation mounts may be present, but in other instances, two, four, or even more may be present. However, in an embodiment with three isolation mounts, the integral connection to the mounting surface can be more flexible to reduce vibration transmission, and sufficiently rigid to secure the isolation assembly in place within the housing.

[0066] Figure 1An oral irrigator including one or more of the isolator assemblies described herein is illustrated. The oral irrigator 100 may include a reservoir 102 for holding fluid (such as water or mouthwash) to supply fluid to a pump. Where the oral irrigator 100 is a countertop unit, the reservoir 102 may be coupled to a housing 110 or base, and where the oral irrigator 100 is a handheld unit, the reservoir 102 may be coupled to a handle 104 or handheld component for the oral irrigator 100. Accordingly, the size and volumetric capacity of the reservoir 102 may be based on the type and construction of the oral irrigator 100. The reservoir 102 may include a reservoir outlet, such as a port or plug, valve, etc., fluidly coupled to other components of the oral irrigator 100 (e.g., a pump assembly).

[0067] Continue to refer to Figure 1 The oral irrigator 100 may include a housing 110 or a base portion, which in Figure 1 The embodiments shown function to support the oral irrigator 100 on a surface (e.g., a countertop) and optionally support the reservoir 102. In some cases, the housing 110 may be configured as a countertop support, but in other iterations, it may be formed as a handle portion or a portion held in the user's hand during use. The housing 110 supports and / or surrounds one or more components of the oral irrigator 100, such as the pump assembly 112 and / or the drive assembly 114. Additionally, the housing 110 may include fluid pathways (e.g., tubes, hoses) that guide fluid between different components of the oral irrigator, such as between the reservoir 102 and the pump assembly 112 and / or the drive assembly 114 and an outlet (e.g., a handle).

[0068] Handle 104 may be fluidly coupled to reservoir 102, such as via hose 108 or other fluid connector. Handle 104 may include end 106 or other outlet device that directs fluid from reservoir 102 into the user's mouth. Handle 104 may be configured to be held in the user's hand, and in embodiments where the oral irrigator 100 is configured as a handheld device, features of housing 110 may be coupled to or located within handle 104, such as pump assembly 112 and / or drive assembly 114. Handle 104 may also include features for securing end 106 thereto and optionally allowing release of end 106 thereto. End 106 may be in the form of a jet end or other end configuration, such as including bristles (e.g., a nozzle with an integrated brush head), tongue scraper, etc.

[0069] Pump assembly 112 may include various pump components that assist in pumping and directing fluid from reservoir 102 to handle 104 and end 106. For example, pump assembly 112 may include a pump body, piston, connecting rod, and one or more valves. Examples of pump assemblies can be found in U.S. Patent No. 8,888,727 entitled “Vibration Damping for Dental Water Jet,” which is incorporated herein for all purposes. Similarly, drive assembly 114 may be operatively coupled to pump assembly 112 and may be configured to include one or more drive elements (e.g., motor, linkage, gear, gear support, etc.). Drive assembly 114 assists in driving or actuating pump assembly 112 or its components, and will be discussed in detail below. Examples of drive assemblies can also be found in the aforementioned '727 patent.

[0070] Figure 2A-3 Showing can be used with Figure 1 Various views of the isolator assembly 120 used with the oral irrigator 100. The isolator assembly 120 may be used to support and / or house one or more components of the pump assembly 112 and / or drive assembly 114, and functions to reduce or dampen vibrations and noise generated by one or both components 112, 114. For example, the isolator assembly 120 may be positioned within the housing 110 and connect portions of the drive assembly 114 and the pump assembly 112 to the housing 110, for example, it may be positioned between components 112, 114 or otherwise constructed to absorb forces generated by components 112, 114 to reduce the forces transmitted to the housing.

[0071] Depending on the space constraints and / or vibration-inducing components utilized within the oral irrigator 100, the oral irrigator 100 may include one or more isolator assemblies 120. For example, if the pump assembly 112 and the drive assembly 114 are large or need to be distributed in different areas within the housing 110, the oral irrigator 100 may include two or more separate isolator assemblies 120, for example, one for the pump assembly 112 and one for the drive assembly 114.

[0072] The frame 124 may form part of the isolator assembly 120 and may be configured to support, house, enclose, or otherwise connect to the pump assembly 112 and / or drive assembly 114. In one example, the frame 124 may include one or more internal cavities and form a gearbox to house gears of the drive assembly 114, may include a pump body portion for housing a piston of the pump, and / or a portion for receiving connecting members (such as connecting rods). In another example, the frame 124 may partially form or define a planar surface, such as a plate, on which the pump assembly 112 and / or drive assembly 114 may be supported; for example, the drive assembly 114 may be mounted on the top surface of the frame 124. Relatedly, although the frame 124 is shown as a single element, it may be formed as a multi-element component, for example, it may include a bottom portion and a top portion therein, which together may define a receiving cavity to receive various components. The frame 124 is intended to encompass virtually any type of housing element that may support or define portions of the pump assembly 112 and / or drive assembly 114.

[0073] Mounting surface 122 or substrate may support frame 124 and be coupled to frame 124 via one or more isolating mounts 126a, 126b, 126c. Mounting surface 122 may form part of housing 110 of oral irrigator 100, such as the bottom surface or inner surface of housing 110. It should be noted that although mounting surface 122 is shown as a single component, in various embodiments, mounting surface 122 may be a separate and / or disconnected surface within housing 110 or forming part of housing 110. In other words, isolating mounts 126a, 126b, 126c may be coupled to different surfaces or portions of housing 110.

[0074] Reference Figure 3 One or more brackets 130a, 130b, 130c or ribs may be defined on the top or first side of the mounting surface 122. Brackets 130a, 130b, 130c may act as stops to restrict movement of the isolation mounts 126a, 126b, 126c relative to the mounting surface 122. For example, brackets 130a, 130b, 130c may be configured to engage or abut against portions of the isolation mounts 126a, 126b, 126c. In one example, brackets 130a, 130b, 130c may be formed to include an intermediate curved portion (which includes two adjacent legs extending therefrom), for example, formed as a flattened U-shaped structure. Brackets 130a, 130b, 130c may be integrally formed with or coupled to the mounting surface 122. Brackets 130a, 130b, and 130c can be configured to help reduce rotation of isolator mounts 126a, 126b, and 126c and to secure isolator assembly 120 relative to housing 110.

[0075] Continue to refer to Figure 3 One or more receiving apertures 128a, 128b, 128c may be formed in the mounting surface 122. The receiving apertures 128a, 128b, 128c may be positioned to be partially surrounded by the brackets 130a, 130b, 130c. For example, the receiving apertures 128a, 128b, 128c may be defined adjacent to the curved portions of the brackets 130a, 130b, 130c (where the brackets 130a, 130b, 130c are as follows). Figure 3 (In the embodiment shown with a fixed shape).

[0076] The isolator assembly 120 may include one or more isolation mounting members 126a, 126b, 126c, which may be coupled to the frame 124 and function to support the isolation housing within the housing 110, and to dampen or otherwise reduce vibrations or noise generated by components within the frame 124 or by components coupled to the isolation housing.

[0077] The isolation mounting components 126a, 126b, 126c may include a damper 132. The damper 132 may be configured to absorb forces and vibrations. For example, the damper 132 may be formed of or comprise a flexible material, such as an elastomer or rubber material.

[0078] Figure 4 Show along Figure 2B The cross-sectional view of the isolation component is taken from line 4-4. (Refer to...) Figure 3 and 4 The damper 132 may include a recess 136 or groove for receiving portions of the isolation mounts 126a, 126b, 126c. The damper 132 may include a top surface 134 or engagement surface and a bottom surface 146, which may be coupled together via one or more sidewalls 150. The sidewalls 150 may include straight portions and / or curved portions. In many embodiments, the sidewalls 150 may include rounded edges to facilitate force distribution when the damper 132 engages with different components, and / or ensure a tight fit against adjacent components (such as brackets 130a, 130b, 130c). For example, in some embodiments, the damper 132 may be generally formed as a triangle with a rounded base and a curved transition surface. However, as will be appreciated, the damper 132 may take on various different shapes depending on the construction of the housing 110, the pump assembly 112, and / or the drive assembly 114; for this purpose, any discussion of particular implementations is intended to be exemplary only.

[0079] Mounting head 148 may extend from bottom surface 146 and may include neck portion 138 and enlarged end 152. As will be discussed in more detail below, the shape of mounting head 148 may be selected to facilitate connection of damper 132 to mounting surface 122. (Refer to...) Figure 3In some embodiments, the mounting head 148 may also include a tail 154 extending from the end 152. The tail 154 may be used to assist in the installation of the mounting head 148 and may be subsequently removed or omitted depending on the assembly of the isolator assembly 120.

[0080] A recess 136 may define a portion through the damper 132, such as defining a recess or groove extending into the body of the damper 132. For example, the recess 136 may be defined as a groove. The recess 136 may be formed in one or more sidewalls of the damper 132 such that the opening of the recess 136 is accessible via a side and / or front surface of the damper 132. (See reference...) Figure 4 The recess 136 may be defined by a top surface 142 and a bottom surface 144, or by a first recess surface and a second recess surface. The recess 136 may also include a sidewall or rear wall 156, or a third recess surface. The top surface 142 may be parallel to and adjacent to the top surface 134, such that the damper flange 158 or the damper portion may be defined between the two surfaces 134, 142.

[0081] Refer again Figure 3 One or more engagement arms 164, 166 may extend from or be coupled to the frame 124, or additionally form part of the frame 124. In examples where the frame 124 includes a planar surface or plate, the engagement arms 164, 166 may extend outwardly from a portion of the surface, or the frame 124 may include protrusions (e.g., tabs) that may form supports for the engagement arms 164, 166. In other examples, the engagement arms 164, 166 may extend from the sidewalls, top walls, and / or bottom walls of the frame 124 (e.g., when the frame 124 defines an enclosure or partially enclosure of a housing). Isolator mounts 126a, 126b, 126c may include a pair of engagement arms 164, 166 configured to be coupled to the damper 132. Engagement arms 164, 166 may include at least one parallel portion, or as... Figure 3 As shown, they can be parallel to each other along their length, with the first engaging arm 164 positioned above the second engaging arm 166. In other words, the two engaging arms 164, 166 can be separated from each other by a gap and extend outward from the outer surface of the frame 124. In one example (see...), Figure 4 The first engaging arm 164 may have a shorter length than the second engaging arm 166. The extended length of the second engaging arm 166 allows it to engage the rear wall 156 of the recess 136, which helps prevent additional movement between the engaging arm 166 and / or the damper 132, such as slippage of the engaging arm 166 during force application (engagement against the rear wall acts to limit movement). In other embodiments, the second engaging arm 166 may have a shorter length (e.g., may not abut against the rear wall of the recess) to introduce movement that can increase flexibility.

[0082] As can be appreciated, the length and configuration of the connecting arms 164, 166 may vary based on the spatial constraints within the housing 110 of the oral irrigator 100, the configuration of the frame 124, and so on. Figure 6A-9 Various examples of engagement arms 164, 166 that can be used with isolator assembly 120 are shown. Engagement arms 164, 166 can function to support frame 124 (and any components supported or attached to frame 124) and connect it to damper 132.

[0083] Refer again Figure 3 The frame 124 may have various numbers or pairs of engagement arms 164, 166, but in one instance, it may include three pairs of engagement arms 164, 166 that may be spaced around the outer surface of the frame 124, wherein the spacing may be configured to help maintain the connection between the engagement arms 164, 166 and the damper 132 (e.g., equally spaced to help counteract forces in different directions and distribute the load).

[0084] Figures 5A-5C Various views of the isolator assembly 120 during the connection of various components are shown. (Refer to...) Figure 5A One or more components of the pump assembly 112 and / or drive assembly 114 may be positioned within the frame 124. For example, one or more gears, connecting arms, pistons, or other components may be positioned within or partially positioned within the frame 124. It should be noted that various components may be coupled to the frame 124 after it is coupled to the mounting surface 122 or before it is coupled to the mounting surface 122.

[0085] The damper 132 can be connected to the connecting arms 164, 166. For example, briefly refer to... Figure 4 A first damper flange 158 may be positioned between two engaging arms 164, 166 such that the first engaging arm 164 is positioned and engages the top surface 134 or engagement surface of the damper 132, and the second engaging arm 166 may be inserted into or at least partially received within a recess 136. In some configurations, the first damper flange 158 may grip or clamp between the two engaging arms. The positioning of the first engaging arm 164 on the top surface 134 of the damper 132 helps prevent the flange 158 from deflecting away from the engaging arm 164 when a load is applied to the frame 124, and the weight of the frame 124 may be transferred to the damper 132 via engagement through the top surface 134.

[0086] The second engaging arm 166 may be positioned such that its top surface abuts against the top surface 142 of the recess 136. In many configurations, a space may exist between the bottom surface of the second engaging arm 166 and the bottom surface 144 of the recess 136; for example, the thickness of the second engaging arm 166 may be less than the height of the recess 136, such that the second engaging arm 166 does not contact the bottom surface 144 of the recess 136. In some embodiments, a single engaging arm may be used to connect to the damper 132, and in these cases, the first engaging arm 164 may engage the top surface 134, and the second arm may be omitted. In these embodiments, the connection between the damper 132 and the engaging arm 164 may be less rigid compared to a two-arm embodiment, which may reduce vibrations transmitted between the two components. In some cases, one or more stops positioned on the engaging arm and / or the damper may be used to help secure the two components together. Once the first isolation mount 126a is assembled, the other isolation mounts can be assembled in a similar manner, for example, by connecting the damper 132 to each pair of engagement arms 164, 166.

[0087] Isolation mounts 126a, 126b, 126c can be coupled to mounting surface 122. For example, damper 132 can be coupled to mounting surface 122, such as by positioning tail 154 into corresponding receiving apertures 128a, 128b, 128c on mounting surface 122. Tail 154 can then be pulled to elongate mounting head 148, allowing mounting head 148 to deform and receive through receiving apertures 128a, 128b, 128c. (See reference...) Figure 5B After the mounting head 148 passes through the receiving apertures 128a, 128b, 128c, the force on the tail portion 154 can be removed, and the resilient mounting head 148 will return to its original shape. The original shape of the mounting head 148 has a diameter larger than that of the receiving apertures 128a, 128b, 128c, securing the damper 132 to the mounting surface 122. For example, the neck portion 138 may extend through the mounting surface 122, and the mounting head 148 may be positioned on the outer or bottom side of the mounting surface 122. The mounting head 148 can then prevent the damper 132 from being accidentally removed from the mounting surface 122.

[0088] Reference Figure 5C In some embodiments, the tail portion 154 of the damper 132 can be removed after installation. For example, the tail portion 154 can be clamped or additionally removed from the mounting head 148, which can help position the isolator assembly 120 within the housing 110 and help prevent the mounting head 148 from being removed after installation.

[0089] Reference Figure 2A and 4When connected to mounting surface 122, the dampers 132 of the isolating mounts 126a, 126b, 126c can be positioned abutting against brackets 130a, 130b, 130c. In this manner, the isolator assembly 120 is secured in place relative to mounting surface 122, wherein the dampers 132 secure the isolator assembly 120 and limit vertical movement of the frame 124 relative to mounting surface 122. Similarly, brackets 130a, 130b, 130c assist in reducing or preventing lateral movement of the isolator assembly 120 relative to mounting surface 122. Once assembled or as part of the assembly process, mounting surface 122 can be positioned within or secured to housing 110 of oral irrigator 100, and drive or pump components positioned within or connected to frame 124 can be connected to other components. In one example, mounting surface 122 may form part of the bottom surface of the housing 110 of the oral irrigator 100, allowing other components to be attached thereto. In other examples, mounting surface 122 may be a separate base plate or surface attached within the housing.

[0090] Reference Figure 4 During operation of the oral irrigator 100 (e.g., actuation of the pump assembly 112 and / or drive assembly 114), the isolator assembly 120 can reduce vibrations and / or noise (e.g., attenuate energy) that may be generated during operation. For example, when the motor begins to drive the piston forming part of the pump assembly 112, vibrations generated by the movement of the piston, drive shaft, and / or gears can be transmitted from the frame 124 to the engagement arms 164, 166. Since the engagement arms 164, 166 are coupled to the damper 132, they can transmit forces to the damper 132. The first engagement arm 164 can engage against the top surface 134 of the damper 132. The second engagement arm 166 can engage surfaces within a recess by an upward force or other forces generated in the opposite direction to the force transmitted by the first engagement arm 164. The damper 132 can deflect and deform in both the vertical and horizontal directions, absorbing the forces generated by the drive assembly 114 and / or pump assembly 112. For example, variations in cross-sectional thickness (such as along its height or in the load direction) and / or gaps in the body of the damper (e.g., the recess or gap between the bottom surfaces of the second engagement arm 166 and the recess 136) help reduce stiffness in the joint and reduce force transmission to the mounting surface.

[0091] In conventional damping arrangements used in oral irrigators, the sole damping function is often to connect noisy components to a compressible material (such as rubber), and the joints or connections between the pump or motor housings are rigid or substantially rigid. In this way, a significant amount of vibration can be transmitted from the drive assembly or pump assembly to the housing, resulting in a noisy and otherwise undesirable user experience. In this regard, the more flexible connection of the isolator assembly 120 improves energy damping, allowing less vibration to be transmitted to the housing 110, providing a more pleasant user experience and reducing wear and tear on components that can result from vibration.

[0092] As mentioned above, the individual components of the isolator assembly can be modified based on the internal construction of the oral irrigator and the desired damping function. For example, Figure 6A-11 Various views showing different configurations of the isolator assembly 120 are illustrated. It should be noted that... Figure 6A-11 The various components shown can be used together or individually. For example, certain features of the engagement arm, engagement features, and / or damper can be combined with other examples discussed herein, and the discussion of any complete construction is intended to be illustrative only. Accordingly, regarding Figure 6A-11 Unless otherwise stated, any element may be assumed to be the same as or similar to the element described above with respect to Figures 2-5.

[0093] Go to Figures 6A-6C Disclosed isolator assembly 200 may be substantially similar to isolator assembly 120, but may include engagement arms and / or mounting surfaces with different configurations. More specifically, mounting surface 222 may be configured to include a non-planar surface and include a shoulder 223 or protrusion feature that may be formed or attached to mounting surface 222. For example, shoulder 223 may be formed as a protrusion element that may provide additional clearance for that area of ​​mounting surface 222 relative to the support surface of housing 110 or oral irrigator 100. In this example, one of the isolator mounts 226a, 226b, 226c may be attached to the shoulder 223 portion of mounting surface 222 such that damper 132 can be raised relative to the other dampers 132. It should be noted that mounting surface 222 may include multiple raised, recessed, or otherwise differently configured surface areas, and any description of particular surface configurations is intended to be illustrative.

[0094] In some embodiments, the engagement arm is variable and includes different anchoring positions to the frame and / or engagement features for the damper. For example, refer to Figure 6A and 7The first isolator mount 226a includes engaging arms 264, 266 that can be attached to the frame 124 at the same location. For example, an anchoring branch 265 may extend from a side wall of the frame 124, wherein the first engaging arm 264 may include an extension attached to and extending upward from the anchoring branch 265. The anchoring branch 265 may then continue and extend into the second engaging arm 266 to form the second engaging arm 266. In this way, the two engaging arms 264, 266 may be arranged parallel to each other and spaced apart from each other (e.g., above or below), but may include a single anchoring position with respect to the frame 124. It should be noted that although... Figure 6A and 7 The configuration shown includes an anchoring branch 265 formed on the second connecting arm 266, but in other configurations, the anchoring branch 265 may be formed on the first connecting arm 264, and the second connecting arm 266 may extend downward therefrom.

[0095] Reference Figure 6A , 6B In some embodiments, the engagement arm may include an anchoring branch 261 that attaches the engagement arm to the frame 124, but wherein the engagement arms 263, 267 may extend in different directions relative to the anchoring branch 261, for example, at an angle. For example, the engagement arm 267 may extend at a right angle relative to the anchoring branch 261, allowing the damper 132 and the frame 124 to be more easily positioned or additionally fitted into available space within the housing 110. In this embodiment, the second engagement arm 263 may also include a base portion 269 which may be configured to wrap around a shoulder 223 of the mounting surface 222. However, in other configurations, the base portion 269 may be omitted.

[0096] Reference Figure 9 In the isolator mount 226b, the engaging arms 274, 276 and / or the damper 132 may include one or more stops 273a, 273b, 273c, which may extend from their top or bottom surfaces and are configured to restrict movement of the engaging arms 274, 276 relative to the damper 132 in at least one direction. For example, stops 273a, 273b, 273b may restrict horizontal or lateral movement. In some embodiments, stops 273a, 273b, 273c may be used to eliminate the need for two engaging arms while still providing adequate connection to the engaging arms and the damper.

[0097] Reference Figure 10Another example of the damper 132 is disclosed. In this example, the damper 132 may include a second recess or gap 277, and the engagement surface 234 between the first engaging arm 274 and the damper 132 may not be on the top surface 235 of the damper 132. In this example, a top flange 275 may be defined, and the damper 132 may include two recesses 136, 277 that may be in the form of grooves. In some examples, the two recesses 136, 277 may have similar dimensions, or as... Figure 10 As shown, the recess 136 may have a length that is deeper or longer than the top recess 277. However, in various embodiments, the recesses 136 and 277 function to reduce the thickness of the damper 132 at different locations to reduce vibration transmission. In this embodiment, the second engaging arm 276 may be omitted, and the top recess 277 may also function to grip or hold the first engaging arm 274 and hold it in place relative to the damper 132.

[0098] For example, refer to Figure 11 The second engaging arm 276 is omitted, and the top recess 277 clamps around the first engaging arm 274 to secure it in place. Figure 11 In the embodiment shown, the damper 132 can be more flexible when the contact points between the frame 124 and the damper 132 are reduced, and the thickness variation (e.g., reduction) caused by the recesses 277, 136 decreases the stiffness of the damper 132 along its height. This helps to reduce the transmission of forces (e.g., vibrations) through the damper 132.

[0099] As will be understood, any features of isolator assembly 200 may be incorporated into features of isolator assembly 120, and vice versa. For example, the engagement arms 164, 166 of isolator assembly 120 may be configured to have a flat, planar bottom surface (e.g., engagement feature 168 omitted). Similarly, engagement arms 164, 166 may include branch portions or be angled for connection to damper 132, as may be required based on the internal space configuration of oral irrigator 100.

[0100] Figure 12-17 An embodiment of an oral irrigator 1000 including an isolator assembly is shown. The oral irrigator 1000 may include a reservoir 1102 that contains fluid such as water or mouthwash to provide fluid to a pump assembly 1123 (e.g., in…). Figure 13 , 14A(As shown in Figure 14B and partially shown in Figure 15). In the case where the oral irrigator 1000 is a tabletop unit, the reservoir 1102 may be attached to the housing or base 1104. In the case where the oral irrigator 1000 is a handheld unit, the reservoir 1102 may be attached to a handle or handheld component for the oral irrigator 1000. The irrigator 1000 may include a lower housing 1124, which is attached to the base 1104 and supports the irrigator 1000 on a surface, such as via one or more support feet 1130a, 1130b, 1130c, 1130d attached to the lower housing 1124. The base 1104 may define a compartment 1105 for receiving various components. Accordingly, the size and volumetric capacity of the reservoir 1102 may be based on the type and construction of the oral irrigator 1000. The reservoir 1102 may include a reservoir outlet, such as a port or plug, valve, etc., which is fluidly connected to other components of the oral irrigator 1000 (e.g., pump assembly 1123).

[0101] The flushing device 1000 includes a cover assembly 1106 configured to be positioned on and cover the reservoir 1102, for example, to prevent debris from falling into the reservoir cavity. The cover assembly 1106 may be removable, or in some instances, partially movable, to allow access to the reservoir cavity without requiring removal of the cover assembly 1106. In one instance, the cover assembly 1106 may include a first or fixed portion 1120a and a second or hinged portion 1120b. The hinged portion 1120b may pivot relative to the fixed portion 1120a to define an access opening for the reservoir cavity 1172, for example, to allow a user to refill the reservoir 1102 without having to remove the entire cover assembly 1106.

[0102] The oral irrigator 1000 may include a control assembly 1180, which may include a display 1186 and one or more actuators adapted to allow a user to control the irrigator 1000. The oral irrigator 1000 includes a handle 1108 and an actuator or pause button 1109 coupled to an end 1110. The handle 1108 is fluidly connected to a pump assembly via a hose 1112 that supplies fluid from a reservoir 1102 to the end 1110. The oral irrigator 1000 includes a drive assembly 1122 that mechanically drives the pump assembly 1123.

[0103] For example Figure 13The exploded view shown is of an oral irrigator 1000, which includes a hose fitting 1118 that connects a hose 1112 to a pump assembly 1123. The oral irrigator 1000 may include a spindle 1116 coupled to a base 1104, around which the hose 1112 can be stored. A magnet 1126 can be positioned or captured within a recess defined on the inner surface of the spindle 1116. The hose 1112 can be wound around the outer surface of the spindle 1116 and stored with a handle 1108, and secured in place via the magnet 1126.

[0104] The oral irrigator 1000 includes a valve assembly 1132 that fluidly connects a reservoir 1102, a pump assembly 1123, and a handle 1108. The valve assembly 1132 may also be configured to allow fluid to bypass back to the reservoir 1102, such as when flow through an outlet (e.g., the handle 1108) is blocked (e.g., due to actuation of a handle actuator or a pause button 1109). The oral irrigator 1000 may include a reservoir valve assembly 1290 that may be attached to the top of the valve assembly 1132 and mounted on a valve housing.

[0105] Reference Figure 14A The motor wall 1204 may extend downward from the bottom surface 1212 of the lower housing 1124. The motor wall 1204 may define a substantially closed or fully closed shape, for example, as... Figure 14A As shown, the motor wall 1204 is defined as a cylindrical extension with an opening, such as a discontinuous curved wall. In this way, the motor wall 1204 can more easily receive and secure certain components (such as motors) in place. However, in other embodiments, the motor wall 1204 will be completely continuous and configured to wrap around the corresponding drive component (e.g., motor 1228). The motor wall 1204 can be particularly useful where the motor 1228 can not be rigidly mounted to the housing, because the motor 1228 can move more flexibly within the base 1104, and the motor wall 1204 helps ensure that the motor 1228 does not move too much and remains aligned even after experiencing strong forces (e.g., due to dropping forces if the user drops the unit).

[0106] Reference Figure 14BOne or more dampers 1428 may be used to connect pump housings 1244a, 1244b to base 1104. The damper 1428 may be configured to absorb vibrations to reduce force transmission to base 1104. In one example, the damper 1428 is configured to connect to mounting support 1280 and may include a main body having grooves 1430 formed in its sidewalls to define a connecting arm 1432 and a bottom arm 1434. The two arms 1432, 1434 may extend parallel to each other and be separated by the thickness of the groove 1430. Protrusions 1436a, 1436b may be formed on the inner surface of one or both of the connecting arm 1432 and the bottom arm 1434. Figure 14A and 14B In the example shown, each of the inner surfaces of the connecting arm 1432 and the bottom arm 1434 may include adjacently arranged protrusions 1436a, 1436b.

[0107] Mounting head 1438 may extend from base arm 1434 and may include a neck and flange portion, and may be configured to deform to fit through an aperture in base 1104 and extend back to its original configuration to secure damper 1428 to base 1104. As will be understood, damper 1428 may be formed generally of a flexible material such as rubber.

[0108] In one example, the oral irrigator 1000 may include dampers 1428 that can be coupled to different distribution areas of the pump housings 1244a, 1244b, but in other configurations, different numbers of dampers 1428 may be used. In an example including three dampers 1428, the assembly may be configured to be supported within the base 1104, and because three anchoring points are included (instead of four or more), slight movement of the pump housings 1244a, 1244b is allowed, introducing some instability. This can further help prevent vibration from being transmitted to the base 1104, as movement requires energy, reducing the total energy available for transmission to the base 1104.

[0109] Reference Figure 14B and 15A-B, the damper 1428 may be coupled to the pump housing 1244, such as the lower pump housing 1244b. In one embodiment, the damper 1428 may be coupled to a mounting support 1280, for example, an engaging arm 1432 may be received between the first arm 1282 and the second arm 1284 of the mounting support 1280. In one embodiment, a protrusion 1436a may be positioned within a recess 1286 defined on the upper surface of the second arm 1284. In some embodiments, the thickness of the second arm 1284 of the mounting support 1280 may be configured such that it does not engage the bottom arm 1434 of the damper 1428. In other words, a space may exist between the bottom surface of the second arm 1284 of the mounting support 1280 and the top surface of the bottom arm 1434 of the damper 1428. This spacing may help absorb energy by the damper 1428, reducing the transmission to the base 1104. In some instances, the connection between the pump housing 1244, the motor 1228, and the damper 1428 can function to effectively cantilever support the motor 1228, as well as many components of the drive assembly 1122 and the pump assembly 1123, which can help reduce the transmission of vibrations during use when some movements are permitted by the components.

[0110] Reference Figure 14A , 14B 16. Pump assembly 1123 and drive assembly 1122 can be secured in place to the lower housing 1124 of base 1104. For example, mounting head 1438 of damper 1428 can be inserted into isolator orifices 1386a, 1386b, 1386c of lower housing 1124. Mounting head 1438 can deform to push through orifices 1386a, 1386b, 1386c, and then, once on the outside of lower housing 1124, can extend back to secure damper 1428 in place. Buffers 1374a, 1374b, 1374c can be positioned around the outer sidewall of damper 1428 to facilitate providing lateral support to damper 1428 within lower housing 1124. In some embodiments, buffers 1374a, 1374b, 1374c extend around and follow the shape of damper 1428, for example, having a slight bend to change direction with respect to the outer sidewalls of damper 1428, and having a height configured to be less than half the height of the main body of damper 1428 (e.g., the portion of damper 1428 extending into the inner side of lower housing 1124 and excluding the height of mounting head 1438). Furthermore, due to the angular inclination of the dampers facing the sides of buffers 1374a, 1374b, 1374c, the sidewalls of buffers 1374a, 1374b, 1374c and damper 1428 are not parallel and may be spaced apart from each other. This defines a movement space where damper 1428 is adjacent to the walls abutting buffers 1374a, 1374b, 1374c (see...). Figure 14B and 16The damper includes additional deformation space, for example, to increase or maximize the deflection of the damper, which allows the damper to absorb more vibrations than in other configurations. Additionally, the angled surface of the damper-facing side of the buffer can aid in repositioning the damper 1428 if it deflects or moves during use or transport of the unit. For example, the angled surface is tilted downwards to encourage the damper 1428 to slide back into place.

[0111] Reference Figure 15A and 15B A pump housing 1244 is integrally formed to define a gear housing that supports drive elements (such as one or more gears, motors, connecting rods, and / or gear shafts) of the drive assembly 1122. More specifically, a second pump housing 1244b may include an outer wall 1258, which may be defined as a continuous wall and extends around a periphery to define both the drive element or gear compartment 1260 and the pump chamber 1246. The gear compartment 1260 may be shaped and sized to receive various elements of the drive assembly 1122 and / or the pump assembly 1123. The gear compartment 1260 may be connected to the pump chamber 1246 such that fluid can flow between the gear compartment 1260 and the pump chamber 1246 without sealing elements (such as components of the pump assembly 1123).

[0112] The outer wall 1258 transitions to define the outer periphery of the second gear housing 1244b. The outer wall 1258 may form a pump extension 1262, which may extend from a portion of the outer wall 1258. The pump extension 1262 includes the outer wall and defines a pump chamber 1246 therein. The pump chamber 1246 may open at either end, one end leading to the gear compartment 1260, and the other end (piston end 1268) may form the end of the pump chamber 1246, extending away from the outer wall 1258.

[0113] Optionally, the pump housing 1244b may include one or more connection features, such as a pump plate 1264 and / or one or more fastening supports. The pump plate 1264 may be formed at the piston end 1268 of the pump chamber 1246, or as... Figure 12 As shown in B, the piston end 1268 can be positioned slightly rearward to form such that a portion of the pump extension 1262 extends through the pump plate 1264. However, in different embodiments, the construction and orientation of the pump plate 1264 can be different.

[0114] The fastening sleeves 1266a and 1266b may be configured to extend parallel to the pump chamber 1246 and the pump extension 1262, such that fasteners used to secure fittings to the pump extension 1262 may be configured to extend in the same direction as the force generated by the pump assembly 1123 during operation. In one embodiment, the fastening sleeves 1266a and 1266b may define a cavity or recess configured to receive a fastener, but may be configured differently in other embodiments.

[0115] Continue to refer to Figure 15A and 15B The pump housing 1244 may include one or more fastening supports 1256, such as protrusions or brackets, which may receive one or more fasteners to secure the pump housing 1244 together, for example, securing a first pump housing 1244a to a second pump housing 1244b. The pump housing 1244b may also include one or more mounting supports 1280 to connect components of the pump housing 1244b and / or the drive assembly 1122 and the pump assembly 1123 to the base 1104. In one example, the mounting support 1280 may include a first arm 1282 and a second arm 1284, wherein the two arms 1282, 1284 may be configured to receive around a mounting element (e.g., a rubber mounting element). In one example, the second arm 1284 may include a recess 1286 defined on a top surface facing the first arm 1282. As discussed in more detail herein, the recess 1286 may be configured to receive a portion of the mounting element. The two arms 1282, 1284 may extend parallel to each other and may extend from the outer wall 1258 of the pump housing 1244b, for example, perpendicularly from the side wall of the pump housing 1244b. In one example, the first arm 1282 may have a width smaller than the second arm 1284; however, in other configurations, the arms 1282, 1284 may be constructed differently. The pump housing 1244b may include three sets of mounting supports 1280, each set comprising two arms, two of which extend from the outer wall 1258, and one of which extends from a formed bracket 1288 extending downward from the top edge of the pump housing 1244b. The number and configuration of the mounting supports 1280 may vary based on the desired configuration of the pump assembly 1123, the drive assembly 1122, and the housing supports.

[0116] Reference Figure 16 One or more buffers 1374a, 1374b, 1374c may extend upward from the inner surface 1376. As discussed in more detail below, buffers 1374a, 1374b, 1374c may be shaped with slightly angled or curved walls, such as U-shapes, and may have a height less than (e.g., shorter than) that of the isolator used for pump assembly 1123. Buffers 1374a, 1374b, 1374c may be positioned (e.g., curved around) around isolator orifices 1386a, 1386b, 1386c, and in some cases, three isolator orifices 1386a, 1386b, 1386c may be present. Similarly, one or more foot orifices 1380a, 1380b, 1380c, 1380d may be present, configured as portions receiving feet (e.g., rubber feet). Foot holes 1380a, 1380b, 1380c, and 1380d can define passageways through the lower housing 1124.

[0117] Reference Figure 16 One or more discharge ports 1382a, 1382b, 1382c, 1382d may define passages through the lower housing 1124. The discharge ports 1382a, 1382b, 1382c, 1382d are configured to allow fluid to exit the base compartment 1105 through the lower housing 1124. In one embodiment, each of the discharge ports 1382a, 1382b, 1382c, 1382d may be positioned adjacent to foot ports 1380a, 1380b, 1380c, 1380d or other internal features formed on the lower housing 1124, and preferably, may be positioned such that the discharge ports 1382a, 1382b, 1382c, 1382d abut against the peripheral edge of the inner surface 1376 and optionally be partially concealed by foot mounts. The positioning of the discharge orifices 1382a, 1382b, 1382c, and 1382d in this manner helps reduce noise escape through the lower housing 1124 because the fastener bosses 1384a, 1384b, 1384c, and 1384d act as blocking elements to prevent sound waves from reaching and subsequently exiting the discharge orifices 1382a, 1382b, 1382c, and 1382d, or to absorb sound waves. It should be noted that the number and positioning of the discharge orifices 1382a, 1382b, 1382c, and 1382d can vary as desired, and in some instances, the oral irrigator 1000 may include a single discharge orifice or may include more than those shown. However, in many conventional oral irrigator units, a single centrally located discharge orifice may be used, but in such cases, the orifice can allow noise to escape from the housing, which can increase the overall noise perceived by the user. Figure 17 A partial view of an example of the isolator assembly is shown. Arm 1282 is shown as being received in damper 1428. The isolator dampens vibrations or noise generated by pump 1232 and / or drive assembly 1233, thereby making the operation of oral irrigator 100 quieter than it would be without the isolator assembly. Figure 17 The diagram also shows a wire 1414, which can be connected to a strain relief member 1133 and can be wound around a boss 1384a such that it extends around the surface of the boss 1384a and beneath itself, to then extend to connect to a circuit board and / or a motor, for example, to provide power to the circuit board. In other examples, the wire 1414 can be additionally secured to the boss 1384a, which can act as a wire anchor, for example, by winding around the surface of the boss 1384a and then having the two ends wound around each other and secured together.

[0118] in conclusion Any description of a particular component that is part of a particular embodiment is intended to be illustrative only and should not be construed as requiring use with the particular embodiment or requiring other elements as shown in the depicted embodiment.

[0119] All relative and directional references (including top, bottom, side, front, rear, etc.) are given by way of example to aid the reader in understanding the examples described herein. Unless expressly set forth in the claims, they should not be read as requirements or limitations (particularly concerning location, orientation, or use). Connection references (e.g., attachment, coupling, connection, link, etc.) will be interpreted broadly and may include intermediate parts between connected elements and relative movement between elements. In this regard, unless specifically set forth in the claims, a connection reference does not necessarily mean that two elements are directly connected and in a fixed relationship with respect to each other.

[0120] This disclosure is by way of example and not by way of limiting teaching. Therefore, anything contained in the above description or shown in the accompanying drawings should be interpreted as illustrative and not as limiting. The following claims are intended to cover all general and specific features described herein, and all statements regarding the scope of the method and system, which, in terms of language, may be said to fall within it.

Claims

1. An oral irrigator comprising: case; The drive assembly is located within the housing; A pump assembly, which is connected to the drive assembly; as well as An isolator assembly, coupled to at least one of the drive assembly or the pump assembly, and configured to suppress vibrations generated by either or both of the drive assembly or the pump assembly, the isolator assembly comprising: A frame, which is operatively connected to at least one of the drive assembly or the pump assembly; A connecting arm, which is attached to the frame and extends outward from the frame; and A damper, positioned between portions of the frame and the housing, includes a recess defined therein and is configured to support the isolator assembly within the housing, wherein a connecting arm engages a connecting surface of the damper, the connecting surface being separate from the surface of the recess defining the recess. The engagement arm includes a first engagement arm and a second engagement arm, wherein the first engagement arm contacts the engagement surface of the damper, and the second engagement arm is positioned adjacent to the recessed surface of the damper.

2. The oral irrigator according to claim 1, wherein, The mating surface forms the outer surface of the damper.

3. The oral irrigator according to claim 2, wherein, The outer surface is the top surface of the damper and is positioned above the surface of the recess.

4. The oral irrigator according to claim 1, wherein, The first connecting arm is connected to the damper at a location other than the recess.

5. The oral irrigator according to claim 1, wherein, The second engaging arm is positioned within the recess, and the engaging surface is positioned above the recess, such that the first engaging arm is positioned above the recess.

6. The oral irrigator according to claim 1, wherein, The housing includes a mounting surface, and the damper includes a mounting head that receives an orifice through the mounting surface, and the damper supports the frame above the mounting surface.

7. The oral irrigator according to claim 1, wherein, The rack is operably connected to at least one of the following: The drive shaft of the drive assembly; One or more gears of the drive assembly; The connecting arm of the pump assembly; or The piston of the pump assembly.

8. The oral irrigator of claim 1, further comprising a stop connected to at least one of the damper or the engagement arm, and configured to restrict movement of the engagement arm relative to the damper in at least one direction.

9. The oral irrigator according to claim 1, wherein, The recess is a first recess, and the damper includes a second recess, wherein the engagement surface is formed in the second recess, and the first engagement arm is at least partially received within the second recess.

10. An oral irrigator comprising: case; A vibration-generating component is positioned within the housing; as well as An isolator assembly, connected to the vibration-generating member, includes: A frame, which is connected to the vibration generating component; The connecting arm, which is connected to the frame; and A damper is positioned between the frame and the housing, wherein the engaging arm engages the top surface of the damper, and the bottom surface of the damper engages the housing. The engagement arm includes a first engagement arm and a second engagement arm, wherein the first engagement arm engages the top surface of the damper, and the second engagement arm engages another surface of the damper that is not the top surface.

11. The oral irrigator according to claim 10, wherein, The vibration generating component includes a portion of the drive assembly or pump assembly for the oral irrigator.

12. The oral irrigator according to claim 10, wherein, The damper further includes a recess defining a passage through its sidewall.

13. The oral irrigator according to claim 12, wherein, The second engaging arm is received at least partially within the recess.

14. The oral irrigator according to claim 13, wherein, The thickness of the second connecting arm is less than the height of the recess.

15. An oral irrigator comprising: substrate; A frame, which includes a first engaging arm; Vibration generating component, which is supported by the frame; as well as A damper that separates the frame from the base plate to reduce vibration transmission from the vibration-generating member to the base plate, the damper comprising a body and a first groove and a second groove defined on a side of the body; wherein The first engaging arm is received in the second slot; and The first groove is positioned between the second groove and the substrate to reduce vibration transmission to the substrate. The frame further includes a second engagement arm, and a portion of the damper's body is positioned between the first engagement arm and the second engagement arm.

16. The oral irrigator according to claim 15, wherein, The first slot and the second slot form a continuous space in the side of the body of the damper, such that the first engaging arm occupies the second slot, and the first slot is positioned directly below the first engaging arm.

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