Components for oral hygiene devices

Abstract

The present disclosure provides a component for an oral hygiene device, which can further reduce the burden applied to an object in the oral cavity, suppress the reduction of cleaning performance, and maintain a cleaner state. The oral hygiene device component (20) disclosed in the present disclosure has a handle (30), which has a flow path (P2) through which liquid can pass. In addition, the oral hygiene device component (20) has a head (40), which has a head body (50) continuously arranged on one end side of the handle (30) and a head component (60) retained on the head body (50). In addition, the head component (60) has a fibrous cleaning portion (611), which is exposed from the head body (50) when the head component is retained on the head body (50) and can clean objects in the oral cavity. In addition, a liquid supply path (P3) is formed on the head (40) that is connected to the flow path (P2) and can supply liquid to the cleaning portion (611).

Description

Technical Field

[0001] The present disclosure relates to components for oral hygiene devices. Background Art

[0002] As disclosed in Patent Document 1 below, there is known an oral hygiene device member in which a bristle portion is provided on a sheet-like base material and the bristle portion is used to scrape a cleaning target area such as the tongue or oral mucosa.

[0003] In Patent Document 1, the implanted hair section comprises a first filament and a second filament protruding from a sheet-like base. Furthermore, the first filament is annular with both ends fixed to the sheet-like base, while the second filament has one end fixed to the sheet-like base and the other end free. This provides excellent contact feel and enables effective cleaning of the entire oral cavity.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2013-198672 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] However, in the above-mentioned prior art, although the touch feeling is excellent and the entire oral cavity can be cleaned well, the first and second filaments are densely arranged on the sheet substrate. Therefore, there is a problem that the sheet substrate is immediately soiled when the cleaning target area is scraped.

[0009] Furthermore, in the above-mentioned conventional technology, when scraping the cleaning target area, the first and second filaments are brought into direct contact with the cleaning target area such as the tongue or oral mucosa, which may increase the burden on the cleaning target area.

[0010] Therefore, an object of the present disclosure is to provide an oral hygiene device member that can further reduce the burden on an object in the oral cavity, suppress a decrease in cleaning performance, and maintain a cleaner state.

[0011] Solutions for solving problems

[0012] The component for an oral hygiene device according to one embodiment of the present disclosure comprises: a handle having a flow path through which liquid can pass; and a head having a head body provided continuously with one end side of the handle, and a head component retained by the head body. In addition, the head component has a fibrous cleaning portion that is exposed from the head body when the head component is retained by the head body and is capable of cleaning objects in the oral cavity. Furthermore, a liquid supply path is formed in the head that is connected to the flow path and is capable of supplying liquid to the cleaning portion.

[0013] Effects of the Invention

[0014] According to the present disclosure, it is possible to obtain an oral hygiene device member that can further reduce the burden on an object in the oral cavity, suppress a decrease in cleaning performance, and maintain a cleaner state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a perspective view showing an example of the oral hygiene device according to the embodiment.

[0016] Figure 2 It is a side view showing the member for oral hygiene device according to the embodiment.

[0017] Figure 3 It is an exploded perspective view showing the components for the oral hygiene device according to the embodiment.

[0018] Figure 4 It is a side view showing the handle portion and the cylindrical portion according to the embodiment.

[0019] Figure 5 It is a front view showing the handle portion and the cylindrical portion according to the embodiment.

[0020] Figure 6 It is a rear view showing the handle portion and the cylindrical portion of the embodiment.

[0021] Figure 7 It is a side sectional view showing a partially enlarged view of the handle portion and the cylindrical portion of the embodiment.

[0022] Figure 8 It is a perspective view showing a partially enlarged view of the handle portion and the cylindrical portion of the embodiment.

[0023] Figure 9 It is a top view showing the head member according to the embodiment.

[0024] Figure 10 It is a cross-sectional view showing a head member according to the embodiment.

[0025] Figure 11 It is a diagram for explaining the cleaning portion of the head member according to the embodiment.

[0026] Figure 12 This is a cross-sectional view showing fibers used in the head member according to the embodiment.

[0027] Figure 13 It is a plan view showing a sheet-like member used for forming the head member according to the embodiment.

[0028] Figure 14 This is a perspective view of the holder according to the embodiment as viewed from one direction.

[0029] Figure 15 This is a perspective view of the holder according to the embodiment as viewed from another direction.

[0030] Figure 16 It is a perspective view showing a cover according to the embodiment.

[0031] Figure 17 It is a side sectional view showing the head part of the embodiment.

[0032] Figure 18A This is a diagram for explaining an example of a retaining portion and an outflow portion formed in the head body according to the embodiment.

[0033] Figure 18B It will Figure 18A A partially enlarged view of the anti-slip portion and the outflow portion.

[0034] Figure 19 These are diagrams for explaining a first modified example of the retaining portion and the outflow portion formed in the head body of the embodiment.

[0035] Figure 20 These are diagrams for explaining a second modified example of the retaining portion and the outflow portion formed in the head body of the embodiment.

[0036] Figure 21 These are diagrams for explaining a third modified example of the retaining portion and the outflow portion formed in the head body of the embodiment.

[0037] Figure 22 These are diagrams for explaining a fourth modified example of the retaining portion and the outflow portion formed in the head body of the embodiment.

[0038] Description of Reference Numerals

[0039] 20. Oral hygiene device nozzle (oral hygiene device member); 30. Nozzle handle (handle); 40. Head; 50. Head body; 51. Holder (base); 511a. Top surface (bearing surface); 512. Cylinder; 5121. Locked portion; 5122. Protrusion; 52. Cylindrical portion; 521. First opening; 523. Second opening; 526. Locking claw; 527. Anti-slip portion; 528. Outflow portion; 53. Cover; 532, protrusion; 60, head member; 611, cleaning portion; 621, notch; C, center axis; F, fiber; F2, fluff; F2a, ring portion; FD, fiber diameter; H, height of the ring portion; P2, flow path; P2a, throttling portion; P3, liquid supply path; P3a, gap; P3b, inner space (inside the cylinder); R1, overlapping area; R2, covering area; T, thickness of the head; OD, outer diameter of the head. DETAILED DESCRIPTION

[0040] The following describes the embodiments in detail with reference to the accompanying drawings. However, there are cases where overly detailed descriptions are omitted. For example, there are cases where detailed descriptions of well-known matters are omitted, or where repeated descriptions of substantially the same structures are omitted.

[0041] In addition, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims by these contents.

[0042] In addition, below, as an oral hygiene device member, an oral hygiene device nozzle used as a part of various attachments detachably attached to a device body of an oral hygiene device is exemplified.

[0043] In the following embodiments, the directions of the oral hygiene device nozzle are described by defining the direction along the longitudinal direction of the nozzle handle (handle portion) as the vertical direction Z, and the direction along the axial direction of the cylindrical portion as the front-back direction X. Furthermore, the direction perpendicular to the vertical direction Z and the front-back direction X is described as the width direction Y.

[0044] Furthermore, in the following embodiments, the head side when the head is located on the upper side is defined as the upper side in the up-down direction Z, and the side where the cleaning portion of the head member is exposed (the side where the head member protrudes from the head body) is defined as the front in the front-back direction X for explanation.

[0045] (Implementation Method)

[0046] Hereinafter, an example of the oral hygiene device and the oral hygiene device nozzle according to the embodiment will be described.

[0047] [An example of the structure of an oral hygiene device]

[0048] First, use Figure 1 An example of the structure of an oral hygiene device will be described.

[0049] like Figure 1 As shown, the oral hygiene device 1 of this embodiment includes a device body 10 and an oral hygiene device nozzle (oral hygiene device member) 20 detachably attached to the device body 10 .

[0050] In this embodiment, the oral hygiene device nozzle 20 includes a nozzle shank (handle) 30 that is relatively slender in one direction, and a head 40 that is continuous with one end of the nozzle shank 30. Furthermore, the head 40 includes a head body 50 and a head member 60. The head member 60 is retained by the head body 50 and includes a fibrous cleaning portion 611. Furthermore, the oral hygiene device nozzle 20 is configured to supply liquid to the fibrous cleaning portion 611.

[0051] Specifically, a flow path P2 through which liquid can pass is formed in the nozzle handle 30 of the oral hygiene device nozzle 20, and a liquid supply path P3 is formed in the head 40, which communicates with the flow path P2 and can supply liquid to the cleaning portion 611. Meanwhile, as will be described later, the device body 10 includes a hose 14 having an introduction path P1 formed therein for introducing liquid into the flow path P2 of the oral hygiene device nozzle 20.

[0052] Thus, the oral hygiene device 1 formed by attaching the oral hygiene device nozzle 20 of this embodiment to the device body 10 becomes a device that can, when the head member 60 is inserted into the oral cavity of a user or other person to be cleaned, supply liquid to the cleaning portion 611 while simultaneously cleaning the oral cavity with the cleaning portion 611. In other words, the oral hygiene device 1 of this embodiment can simultaneously achieve the scrubbing effect of the fibrous cleaning portion 611 while cleaning the oral cavity with liquid, thus functioning as a mouthwash.

[0053] Furthermore, water can be used as the liquid supplied through the oral hygiene device nozzle 20, but it is not limited to water and various liquids can be used. For example, a cleaning liquid obtained by mixing a cleaning agent in water can be used.

[0054] In this embodiment, the device body 10 includes a liquid reservoir (liquid reservoir) 12 capable of storing liquid, and a pump 13 for introducing the liquid in the liquid reservoir 12 into the flow path P2 of the oral hygiene device nozzle 20. The device body 10 also includes a hose 14 connected to the liquid reservoir 12, and a handle 15 connected to the hose 14 at one end and having the oral hygiene device nozzle 20 attached to the other end.

[0055] The liquid storage tank 12 stores the liquid supplied to the oral hygiene device nozzle 20. The device body 10 does not necessarily need to include the liquid storage tank 12, and may be configured to directly introduce liquid such as tap water from the outside, for example.

[0056] The pump 13 draws the liquid stored in the liquid tank 12 and delivers it to the handle 15 via the hose 14. As the pump 13, for example, a piston pump can be used. However, the type of the pump 13 is not particularly limited.

[0057] The handle 15 is a substantially cylindrical member that a user can hold when using the oral hygiene device 1. The oral hygiene device nozzle 20 is detachably mounted on one axial end of the handle 15. The hose 14 is connected to the other axial end of the handle 15.

[0058] An inlet passage P1 is formed within the hose 14, one end of which is connected to the liquid reservoir 12. This inlet passage P1 is connected to the flow passage P2 of the nozzle handle 30 via the inlet passage P1 formed within the handle 15. A flow passage P4 is provided within the handle 15. Flow passage P4 is connected to the inlet passage P1 and the flow passage P2. Thus, the liquid within the liquid reservoir 12 is introduced into the handle 15 via the hose 14. The liquid introduced into the handle 15 is then directed to the flow passage P2 and the liquid supply passage P3 within the oral hygiene device nozzle 20.

[0059] In this embodiment, the handle 15 includes an operation switch 15 a partially exposed on the surface side. The user can operate the operation switch 15 a while holding the handle 15 to thereby adjust the on / off state of liquid discharge.

[0060] The device body 10 may also include a housing 11 that accommodates the liquid reservoir 12 and the pump 13. In this embodiment, the device body 10 is exemplified as a device body including the housing 11 having a substantially cylindrical outer shape.

[0061] The housing 11 includes a housing body 111 that accommodates the reservoir 12 and the pump 13 , and an upper cover 112 rotatably mounted to the housing body 111 and openably and closably covering an opening 111 a opened at the upper portion of the housing body 111 .

[0062] In this embodiment, the shell body 111 has a top wall 1111 which is a roughly semicircular plate member, a bottom wall 1112 which is a roughly circular plate member, and a peripheral wall 1113 which is continuously arranged with the peripheral portion of the bottom wall 1112 in a manner that stands upright from the peripheral portion of the bottom wall 1112 and whose upper end is partially continuous with the arc portion of the top wall 1111.

[0063] Therefore, a semicircular opening 111 a is formed in a portion of the housing body 111 that is not covered by the top wall 1111 so as to open upward.

[0064] The liquid tank 12 is housed within the housing body 111 so that its opening communicates with the opening 111a of the housing body 111. The upper cover 112 is attached to the housing body 111 so as to openably and closably close the opening 111a. A user or the like can refill the liquid in the liquid tank 12 by opening the upper cover 112.

[0065] Alternatively, at least one of the handle holding portion 1113a and the hose holding portion 1113b may be provided on the peripheral wall 1113. For example, if the handle holding portion 1113a is provided on the peripheral wall 1113, the handle 15 can be engaged and held in the handle holding portion 1113a when the oral hygiene device 1 (device body 10) is not in use. Alternatively, if the hose holding portion 1113b is provided on the peripheral wall 1113, the hose 14 can be wrapped around and held in the hose holding portion 1113b when the oral hygiene device 1 (device body 10) is not in use.

[0066] Furthermore, a control substrate or the like serving as a control unit for controlling the operation of the pump 13 or the like may be provided inside the housing 11 .

[0067] In addition, in this embodiment, a configuration is shown in which power for operating the pump 13 and the like is supplied from the outside via the power cord 16. However, the configuration of the oral hygiene device 1 (device body 10) is not limited to this configuration. For example, a rechargeable battery may be provided in the housing 11, and the pump 13 and the like may be operated by charging.

[0068] Furthermore, an operation button for adjusting the flow intensity (flow rate per unit time) of the liquid supplied from the oral hygiene device nozzle 20 may be provided on the outer surface of the housing 11 .

[0069] The housing 11 and the like can be formed using a material such as synthetic resin, but are not limited thereto and can be formed using various materials.

[0070] [An example of the structure of a nozzle for an oral hygiene device]

[0071] Next, use Figures 2 to 18B An example of the structure of a nozzle for an oral hygiene device will be described.

[0072] As described above, the oral hygiene device nozzle 20 of the present embodiment is detachably attached to the grip 15 of the device body 10 of the oral hygiene device 1 .

[0073] As described above, the oral hygiene device nozzle 20 is used as a part of various accessories that are detachably attached to the device body 10 of the oral hygiene device 1 .

[0074] As other accessories that can be detachably mounted on the device body 10 of the oral hygiene device 1, for example, a nozzle accessory can be cited that can spray a pressurized liquid (water, washing water, etc.) from the nozzle at the top to clean the oral cavity of the user. In this way, it is possible to use a variety of accessories separately according to the purpose, and it is possible to more effectively maintain the hygiene of the oral cavity. In addition, it is also possible to use the oral hygiene device nozzle 20 as a part of various accessories instead of using it as a dedicated oral hygiene device nozzle 20.

[0075] Figure 2 2 is a side view of the nozzle 20 for oral hygiene device. Figure 2 As shown, the oral hygiene device nozzle 20 has a nozzle handle (handle portion) 30 having a flow path P2 through which liquid can pass. In addition, the oral hygiene device nozzle 20 has a head 40 having a connection with one end side ( Figure 2 A head body 50 is continuously provided at the upper end of the head body, and a head member 60 is retained by the head body 50.

[0076] The nozzle handle 30 is cylindrical and elongated in the vertical direction Z. For example, it can be formed by using a material such as synthetic resin. However, the nozzle handle 30 can also be formed by using other materials such as metal. In addition, a flow path P2 extending along the vertical direction Z is formed inside the nozzle handle 30 (see Figure 7 ).

[0077] In this embodiment, the nozzle handle 30 includes a main body 31 provided continuously with the head 40, and a protrusion 32 provided continuously with the lower portion of the main body 31 in the vertical direction Z and engaging with one axially distal end of the handle 15. The oral hygiene device nozzle 20 is attached to the handle 15 by inserting and engaging the protrusion 32 into an engaging recess (not shown) formed in the handle 15.

[0078] On the other hand, the head portion 40 has a substantially disk shape and is provided continuously with the upper end of the main body portion 31 in a state where the axial direction thereof is along the front-rear direction X. Figure 3 2 is an exploded perspective view showing the nozzle 20 for the oral hygiene device. Figure 3 As shown, the head 40 includes a head main body 50 provided continuously to the upper end (one end side) of the nozzle handle 30 (main body 31 ), and a head member 60 held by the head main body 50 .

[0079] The head body 50 includes a holder (base) 51 for supporting the head member 60, a cylindrical portion 52 provided continuously with the upper end of the nozzle handle 30 (main body 31) and capable of inserting and holding the holder 51, and a cover 53 for closing the back side of the cylindrical portion 52 (see FIG. Figure 3 ).

[0080] The holder 51 , the cylindrical portion 52 , the cover 53 , and the head member 60 may be formed using materials such as synthetic resin, and components other than the head member 60 may be formed using other materials such as metal.

[0081] Here, in this embodiment, the head portion 40 is formed to have a thickness T (see Figure 2 ) is 5 mm or more and 15 mm or less. In addition, the head 40 is formed to have an outer diameter OD (refer to Figure 5 The maximum dimension (dimension in the width direction Y) of the head 40 (as shown in the front view) is 15 mm or more and 40 mm or less. If the overall thickness T of the head 40 is thinner than 5 mm or the maximum dimension of the overall outer diameter OD of the head 40 is smaller than 15 mm, it may become difficult to maintain durability during use. In addition, if the overall thickness T of the head 40 is thicker than 15 mm or the maximum dimension of the overall outer diameter OD of the head 40 is larger than 40 mm, it may cause discomfort when the head 40 is placed in the mouth, thereby deteriorating the usability of the oral hygiene device nozzle 20.

[0082] In addition, if Figure 3 As shown, the holder 51 has a substantially circular top wall portion 511 and a cylindrical portion 52 extending from the outer peripheral edge of the top wall portion 511 toward the rear in the front-rear direction X (the central axis C of the cylindrical portion 52 (see FIG. Figure 5 ) direction) extends to the other side) of the substantially cylindrical barrel 512. And the top surface (front surface) 511a of the top wall portion 511 becomes the bearing surface of the bearing head member 60 (refer to the three-dimensional diagram showing the holder 51) Figure 14 ).

[0083] Figure 4 、 Figure 5 and Figure 6 The figures are a side view, a front view, and a rear view respectively showing the nozzle handle 30 (handle portion) and the cylindrical portion 52 . Figure 7 and Figure 8 The following are a side sectional view and a perspective view showing the nozzle handle 30 and the cylindrical portion 52 in a partially enlarged manner. Figures 4 to 8 As shown, the cylindrical portion 52 is substantially cylindrical and extends in the front-rear direction X. A first opening 521 is formed at the front in the front-rear direction X, and a second opening 523 is formed at the rear in the front-rear direction X. In this embodiment, the cylindrical portion 52 is integrally formed with the nozzle handle 30 .

[0084] Here, in this embodiment, the inner diameter of the cylindrical portion 52 is slightly larger than the outer diameter of the cylindrical body 512. When the holder 51 is inserted into the cylindrical portion 52, a gap P3a is formed between the outer peripheral surface 512a of the cylindrical body 512 and the inner peripheral surface 52a of the cylindrical portion 52 (see the side sectional view of the head 40). Figure 17 ). This gap P3a constitutes a part of the liquid supply path P3 formed in the head 40.

[0085] In this embodiment, locking claws 526 for locking the holder (base) 51 are formed at four locations on the inner peripheral surface 52a of the cylindrical portion 52 (see FIG. Figure 8 On the other hand, at positions corresponding to the locking claws 526, the outer peripheral surface 512a of the cylinder 512 of the holder (base) 51 has locking portions 5121 (see the three-dimensional view of the holder 51) that are locked to the locking claws 526. Figure 14 and Figure 15 ).

[0086] Furthermore, when the retainer 51 is inserted into the cylindrical portion 52 , the locked portion 5121 of the retainer 51 is locked to the locking claw 526 , thereby preventing the retainer 51 from moving rearward in the front-rear direction X and falling off the cylindrical portion 52 . Thus, the retainer 51 is retained in the cylindrical portion 52 .

[0087] In addition, in this embodiment, a peripheral edge portion 522 extending toward the central axis C is formed on the first opening 521 side of the cylindrical portion 52, so that the peripheral edge portion 522 is used to prevent the retainer 51 from moving forward in the front-rear direction X and falling off the cylindrical portion 52.

[0088] The cover 53 includes a cover body 531 that closes the second opening 523 of the cylindrical portion 52 at the rear side in the front-back direction X (the other side in the direction of the central axis C); and a protrusion 532 that protrudes from the front center of the cover body 531 and is inserted into the interior of the cylindrical body 512 of the holder 51 (see FIG. Figure 3 and a perspective view showing the cover 53 Figure 16 ).

[0089] Furthermore, the cover 53 is moved from the rear to the front of the cylindrical portion 52 with the protrusion 532 protruding forward in the front-rear direction X, so that the second opening 523 is closed by the cover body 531 .

[0090] In this embodiment, a welding rib 5241 is formed on the entire periphery of the peripheral edge portion 524 on the second opening 523 side of the cylindrical portion 52 (see FIG. Figure 7 and Figure 8). The welding rib 5241 is welded to the cover 531 by ultrasonic welding or the like, thereby ensuring sealing performance on the cover 53 side (rear side) of the head 40. This prevents the liquid supplied to the liquid supply path P3 from leaking from the cover 53 side (rear side).

[0091] In addition, if Figure 16 As shown, in this embodiment, the protrusion 532 includes a support portion 532a protruding from the center of the front portion of the cover body 531, and a circular plate portion 532b provided continuously with the front end of the support portion 532a. The circular plate portion 532b is formed to expand radially outward from the front end of the support portion 532a, and is inserted into the interior of the cylindrical body 512 of the retainer 51.

[0092] In this embodiment, the inner space P3b formed inside the cylindrical body 512 of the holder 51 also constitutes a part of the liquid supply path P3 (see Figure 17 ). Therefore, when the disc portion 532b is inserted into the interior of the cylindrical body 512 of the holder 51, the volume of the liquid supply path P3 is reduced by the protrusion 532. Thus, it is set to minimize the amount of liquid remaining in the liquid supply path P3 after use.

[0093] In addition, the head member 60 has a fibrous cleaning portion 611 that is exposed from the head body 50 when the head member 60 is held in the head body 50 and can clean an object in the oral cavity (see Figure 9 and Figure 17 ).

[0094] Specifically, the head member 60 has a substantially circular plate-shaped top wall portion 61 supported on the supporting surface (top surface 511a) of the holder (base) 51, and a substantially cylindrical flange portion 62 extending from the outer peripheral edge of the top wall portion 61 toward the rear in the front-back direction X (the other side in the direction of the central axis C of the cylindrical portion 52) (refer to the cross-sectional view of the head member 60). Figure 10 ).

[0095] Furthermore, when the holder 51 and the head member 60 are inserted into the cylindrical portion 52 with the head member 60 supported on the holder 51, the central portion of the top wall portion 61 is exposed from the first opening 521. That is, in this embodiment, the cleaning portion 611 is formed in the portion of the top wall portion 61 exposed from the first opening 521.

[0096] And, as Figure 13 As shown in the plan view in FIG. 1 , such a head member 60 can be formed by heating and molding a sheet-like member 60A made of synthetic resin.

[0097] Figure 111 and 2 are diagrams for explaining the cleaning portion 611 of the head member 60 . Figure 12 1 is a cross-sectional view showing the fiber F used in the head member 60. Figure 13 The sheet-like member 60A shown can be formed by applying an adhesive to the entire surface of a cloth-like sheet F1 and adhering pile F2 formed by weaving fibers F to the surface of the sheet F1 (see FIG. 1 ). Figure 11 ).

[0098] Here, in this embodiment, the pile F2 is obtained by knitting fibers F so as to form a plurality of loop portions F2a each having an open space S formed therein.

[0099] The pile F2 is bonded to the surface of the sheet F1 in such a manner that the plurality of loops F2a face the same direction (in the direction of the opening of the open space S) as shown in FIG. Figure 11 The state of the surface (in the direction roughly perpendicular to the paper surface) is planar expansion.

[0100] Furthermore, the portion of the head member 60 where the fluff F2 is formed and exposed from the first opening 521 serves as the cleaning portion 611 .

[0101] Furthermore, in this embodiment, the height H of the multiple loops F2a of the cleaning section 611 is set to be greater than 0.5 mm and less than 10 mm. If the height H of the loops F2a is less than 0.5 mm, there is a risk of reduced performance in removing dirt such as tongue coating. If the height H of the loops F2a is greater than 10 mm, there is a risk of the loops F2a becoming stuck on the tongue papilla. In this specification, "performance in removing dirt such as tongue coating" may be referred to as "cleaning performance."

[0102] In addition, if Figure 12 As shown, the fiber diameter FD of the fibers F forming the hairs F2 is set to be greater than 0.001 mm and less than 0.05 mm. This is because if the fiber diameter FD of the fibers F is less than 0.001 mm, the removal performance of dirt such as tongue coating will be reduced, and if the fiber diameter FD of the fibers F is greater than 0.05 mm, the touch of the tongue will be deteriorated, causing discomfort during use.

[0103] Figure 13 1 is a top view of a sheet-like member used to form the head member 60. Furthermore, in this embodiment, it is assumed that: when the head member 60 is held on the head body 50, the opening direction of the opening space S of the ring portion F2a is a predetermined direction (so that the direction is not mistaken), and Figure 13 As shown, the sheet member 60A is formed with a notch 621A. When the sheet member 60A is formed, the notch 621 is formed only on the flange portion 62 (see FIG. Figure 3 ).

[0104] In addition, a positioning protrusion 5122 is formed on the upper portion of the cylindrical body 512 of the holder (base) 51, which is inserted into the notch 621 of the head member 60. Specifically, the protrusion 5122 has a support wall 5122a extending upward and an arc-shaped wall 5122b provided continuously with the upper end of the support wall 5122a (see the three-dimensional view of the holder 51). Figure 14 and Figure 15 ). And it is set that by inserting (inserting) the arc-shaped wall 5122b into the notch 621 of the head member 60, the head member 60 is held on the holder (base) 51 in a state of being positioned on the holder (base) 51.

[0105] Here, in this embodiment, the notch 621A is formed on one side of the sheet-like member 60A in the same direction as the opening direction of the open space S. Thus, when the head member 60 is held in the head body 50, the opening direction of the open space S of the ring portion F2a is substantially aligned with the vertical direction Z. That is, in this embodiment, the ring portion F2a is used to scrape off dirt such as tongue coating by moving the oral hygiene device nozzle 20 in the vertical direction Z.

[0106] In addition, if Figure 3 and Figure 17 As shown, in this embodiment, a through-hole 525 is formed at the lower end of the cylindrical portion 52 (the portion continuous with the main body 31 of the nozzle holder 30) extending in the vertical direction Z. The lower end (one end) of this through-hole 525 communicates with the flow path P2 formed in the nozzle holder 30, while the upper end (the other end) communicates with the liquid supply path P3. Furthermore, the liquid introduced from the flow path P2 into the through-hole 525 can be supplied to the liquid supply path P3. Thus, in this embodiment, the through-hole 525 serves as a connecting portion of the flow path P2 that connects to the liquid supply path P3.

[0107] Furthermore, if Figure 7 As shown, in this embodiment, the cross-sectional area of ​​the through hole 525 (the cross-sectional area when cut by a horizontal plane) is set to be smaller than the cross-sectional area of ​​the flow path P2 (the area of ​​the flow path cross section), so that the through hole 525 acts as a throttling portion P2a formed in the connecting portion of the flow path P2 that is connected to the liquid supply path P3.

[0108] Thus, if the throttle portion P2a is formed in the communicating portion of the flow path P2 that communicates with the liquid supply path P3, for example, by setting the cross-sectional area of ​​the throttle portion P2a to a predetermined size, the flow rate of the liquid supplied to the liquid supply path P3 (the amount of liquid flowing in per unit time) can be controlled to a predetermined amount. In other words, a more appropriate amount of liquid can be supplied to the liquid supply path P3.

[0109] In addition, in this embodiment, Figure 3As shown, a notch-shaped recess 5123 is formed at the lower end of the cylindrical body 512 of the holder 51 so that when the holder 51 is inserted into the cylindrical portion 52 , the supply of liquid from the through hole 525 to the liquid supply path P3 is not hindered by the cylindrical body 512 .

[0110] Here, in the present embodiment, it is assumed that the burden on the object in the oral cavity can be further reduced when the nozzle 20 for the oral hygiene device is used.

[0111] Specifically, the head 40 is formed with a liquid supply path P3 that communicates with the flow path P2 and can supply liquid to the fibrous cleaning portion 611. Thus, when the oral hygiene device nozzle 20 is used, it is possible to scrape an object in the oral cavity while the liquid is retained by the fibrous cleaning portion 611 (the open space S of the ring portion F2a) by utilizing the surface tension of the liquid supplied from the liquid supply path P3.

[0112] In this embodiment, the liquid supply path P3 has a gap P3a formed between the outer peripheral surface 512a of the cylinder 512 and the inner peripheral surface 52a of the cylindrical portion 52 (see Figure 17 ). The gap P3a is formed near the retaining member 51.

[0113] Figure 18A This is a diagram for explaining an example of the anti-detachment portion 527 and the outflow portion 528 formed in the head body. Figure 18B It will Figure 18A FIG. 5 is a partial enlarged view of the anti-detachment portion 527 and the outflow portion 528. In the present embodiment, when the state in which the retaining member 51 is inserted and retained in the cylindrical portion 52 is observed along the central axis C of the cylindrical portion 52 (when observed along the front-back direction X), a gap P3a is formed on the outer peripheral side of the retaining member 51 over the entire circumference. Therefore, when the head portion 40 is observed from the front side (one side) in the direction of the central axis C of the cylindrical portion 52, the gap P3a is annular (see FIG. Figure 18A ).

[0114] And set it as Figure 18B As shown, a retaining portion 527 for preventing the head member 60 from falling off from the head portion 40 and an outflow portion 528 for allowing the liquid in the gap P3a to flow out toward the first opening 521 are formed around the first opening 521 of the cylindrical portion 52 .

[0115] Thus, by forming the anti-detachment portion 527 and the outflow portion 528 around the periphery of the first opening 521 , the head member 60 can be prevented from falling off from the head portion 40 (head body 50 ), and the liquid can be more reliably distributed throughout the cleaning portion 611 .

[0116] Specifically, when the head portion 40 is viewed from the front side (one side) on the central axis C of the cylindrical portion 52, a covering region R2 is formed on the cylindrical portion 52 to cover the holder (base) 51 from the front side, and this covering region R2 functions as a detachment prevention portion 527. Furthermore, when the head portion 40 is viewed from the front side (one side) on the central axis C of the cylindrical portion 52, an overlapping region R1 is formed in the first opening 521 that overlaps with the gap P3a, and this overlapping region R1 functions as an outflow portion 528.

[0117] Here, in this embodiment, the contour shape of the first opening 521 (the contour shape when the head 40 is viewed from the front side in the direction of the central axis C of the cylindrical portion 52) O1 is set to a curved waveform (waveform) (see Figure 18A and Figure 18B ). In this way, if the contour shape O1 of the first opening 521 is formed into a curved waveform, the contour shape O1 of the first opening 521 has at least one set of concavities and convexities. In addition, the contour shape O1 of the first opening 521 is formed by forming the contour shape of the peripheral edge portion 522 of the cylindrical portion 52 into a curved waveform.

[0118] And it is set that the part O1a of the contour shape O1 of the first opening 521 that is recessed toward the center axis C is formed with an anti-slip portion 527. The part O1a that is recessed toward the center axis C is divided by the part 5221 that protrudes toward the center axis C of the peripheral portion 522 of the cylindrical portion 52, and the top side of the part 5221 that protrudes toward the center axis C becomes the covering area R2 that covers the retaining member (base) 51 from the front side. That is, the top side of the part 5221 that protrudes toward the center axis C becomes the anti-slip portion 527 that suppresses the head member 60 from falling off from the head portion 40. In addition, in the present embodiment, claws 5221a that hook and hold the head member 60 are formed on the parts 5221 that protrude toward the center axis C on both sides located in the up-down direction Z (refer to Figure 7 and Figure 8 ).

[0119] On the other hand, the portion O1 b of the outline shape O1 of the first opening 521 that protrudes toward the outer peripheral side serves as an outflow portion 528 that allows the liquid in the gap P3 a to flow out toward the first opening 521 .

[0120] In the present embodiment, the plurality of sets of concavo-convex portions have the same shape and are formed at substantially equal intervals throughout the entire circumference.

[0121] Thus, if the contour shape O1 of the first opening 521 is formed into a curved waveform, no sharp portion is formed on the peripheral edge 522 of the cylindrical portion 52 , thereby further improving safety when the head 40 is inserted into the oral cavity and used.

[0122] Furthermore, if the plurality of sets of concavo-convex portions have the same shape and are formed at substantially equal intervals throughout the entire circumference, liquid can be supplied to the cleaning portion 611 more uniformly from the outer circumference.

[0123] Furthermore, the outline shape O1 of the first opening 521 can adopt various shapes and does not necessarily need to be a curved waveform.

[0124] [Modification of the structure of the nozzle for the oral hygiene device]

[0125] Next, use Figures 19 to 22 A modified example of the structure of the nozzle for an oral hygiene device will be described. Figures 19 to 22 These are diagrams illustrating first to fourth modified examples of the retaining portion 527 and the outflow portion 528 formed in the head body 50 , respectively.

[0126] First, if Figure 19 As shown, the outline shape O1 of the first opening 521 can also be a triangular wave shape (a mountain shape formed by connecting straight lines).

[0127] Thus, even if the contour O1 of the first opening 521 is formed into a triangular wave shape, the contour O1 of the first opening 521 has at least one set of concavities and convexities.

[0128] exist Figure 19 In FIG. 5 , the gap P3a also has an annular shape when the head portion 40 is viewed from the front side (one side) in the direction of the central axis C of the cylindrical portion 52 .

[0129] The retaining portion 527 is formed in a portion O1a of the outline O1 of the first opening 521 that is recessed toward the central axis C, and the outflow portion 528 is formed in a portion O1b of the outline O1 of the first opening 521 that protrudes toward the outer circumference.

[0130] In addition, if Figure 20 As shown, the outline shape O1 of the first opening 521 can also be a rectangular wave shape (that is, a mountain shape formed by connecting straight lines).

[0131] Thus, even if the outline shape O1 of the first opening 521 is formed into a rectangular wave shape, the outline shape O1 of the first opening 521 has at least one set of concavities and convexities.

[0132] exist Figure 20 In FIG. 5 , the gap P3a also has an annular shape when the head portion 40 is viewed from the front side (one side) in the direction of the central axis C of the cylindrical portion 52 .

[0133] The retaining portion 527 is formed in a portion O1a of the outline O1 of the first opening 521 that is recessed toward the central axis C, and the outflow portion 528 is formed in a portion O1b of the outline O1 of the first opening 521 that protrudes toward the outer circumference.

[0134] Furthermore, the outline shape O1 of the first opening 521 may be a sawtooth wave shape (a mountain shape formed by connecting straight lines).

[0135] In addition, if Figure 21 As shown, the outline shape O1 of the first opening 521 can also be elliptical. The outline shape O1 of the first opening 521 is formed by making the outline shape of the peripheral edge portion 522 of the cylindrical portion 52 elliptical.

[0136] exist Figure 21 In FIG. 5 , the gap P3a also has an annular shape when the head portion 40 is viewed from the front side (one side) in the direction of the central axis C of the cylindrical portion 52 .

[0137] Furthermore, the retaining portion 527 is formed on the short-axis direction side of the outline shape O1 of the first opening 521 , and the outflow portion 528 is formed on the long-axis direction side of the outline shape O1 of the first opening 521 .

[0138] In addition, if Figure 22 As shown, the outline shape O1 of the first opening 521 can also be a quadrilateral (polygonal) shape. The outline shape O1 of the first opening 521 is formed by making the outline shape of the peripheral edge portion 522 of the cylindrical portion 52 a quadrilateral (polygonal) shape.

[0139] exist Figure 22 In FIG. 5 , the gap P3a also has an annular shape when the head portion 40 is viewed from the front side (one side) in the direction of the central axis C of the cylindrical portion 52 .

[0140] Furthermore, the retaining portion 527 is formed at the center of the side of the outline shape O1 of the first opening 521 , and the outflow portion 528 is formed at the vertex portion of the outline shape O1 of the first opening 521 .

[0141] Thus, the outline shape O1 of the first opening 521 when the head 40 is viewed from the front side (one side) in the direction of the central axis C of the cylindrical portion 52 can be various shapes such as a wave shape, a mountain shape, a concave-convex shape, an elliptical shape, or a quadrilateral shape.

[0142] [An Example of a Method for Assembling a Nozzle for an Oral Hygiene Device]

[0143] The oral hygiene device nozzle 20 configured as described above can be assembled, for example, as follows.

[0144] First, the head member 60 is held on the holder (base) 51. At this time, the head member 60 is held on the holder (base) 51 in a state positioned on the holder (base) 51 by inserting the arcuate wall 5122b into the notch 621 of the head member 60 (insertion).

[0145] Then, with the head member 60 facing forward in the front-to-back direction X, the holder (base) 51 holding the head member 60 is inserted into the cylindrical portion 52 from the second opening 523 side. Specifically, the holder (base) 51 is inserted into the cylindrical portion 52 until the peripheral portion 522 abuts against the head member 60. Thus, the head member 60 is clamped by the holder (base) 51 and the cylindrical portion 52. Then, by locking the locked portion 5121 of the holder 51 and the locking claw 526, the holder 51 is held in the cylindrical portion 52 in a state where it will not fall off.

[0146] At this time, the holder (base) 51 is inserted into the cylindrical portion 52 with the arcuate wall 5122b of the protrusion 5122 inserted into the notch 621 of the head member 60 positioned upward.

[0147] Next, the cap 53 is inserted into the cylindrical portion 52 from the second opening 523 side with the protrusion 532 facing forward in the front-rear direction X. Then, the welding rib 5241 formed on the peripheral edge 524 of the cylindrical portion 52 on the second opening 523 side is welded to the cap body 531 by ultrasonic welding or the like, thereby sealing the cap 53 side (rear side) of the head portion 40.

[0148] The nozzle 20 for the oral hygiene device is assembled in this manner. The above-mentioned assembling method is merely an example, and the nozzle 20 for the oral hygiene device can be assembled by various methods.

[0149] [Example of Operation of Oral Hygiene Device]

[0150] Next, the operation of the oral hygiene device 1 to which the above-described oral hygiene device nozzle 20 is attached will be described.

[0151] First, the user or the like holds the handle 15 and inserts the head 40 into the oral cavity, so that the cleaning portion 611 faces an object in the oral cavity.

[0152] Next, the user or the like operates the operation switch 15 a while holding the grip 15 , thereby supplying the liquid.

[0153] Then, in the state that the fibrous cleaning part 611 (the open space S of the ring part F2a) is kept with liquid, the object in the oral cavity is scraped. At this time, the head component 60 is used while being cleaned with liquid. Dirt in the oral cavity is removed in this way.

[0154] In addition, the above-mentioned method of using the nozzle 20 for oral hygiene devices is only an example, and the nozzle 20 for oral hygiene devices can be used in various methods.

[0155] [Function and Effect]

[0156] Hereinafter, the characteristic structure of the nozzle for oral hygiene device (member for oral hygiene device) shown in the above embodiment and the effects obtainable thereby will be described.

[0157] The oral hygiene device nozzle (oral hygiene device component) 20 shown in the above embodiment has a nozzle handle (handle portion) 30, which has a flow path P2 through which liquid can pass. In addition, the oral hygiene device nozzle 20 has a head 40, which has a head body 50 continuously provided on one end side of the nozzle handle 30, and a head component 60 held by the head body 50. In addition, the head component 60 has a fibrous cleaning portion 611, which is exposed from the head body 50 when the head component 60 is held by the head body 50 and can clean objects in the oral cavity. In addition, a liquid supply path P3 is formed in the head 40, which is connected to the flow path P2 and can supply liquid to the cleaning portion 611.

[0158] In this way, when cleaning an object in the oral cavity such as the tongue using the oral hygiene device nozzle 20, the cleaning portion, which retains the liquid, can clean the object. As a result, it is possible to prevent the fibrous cleaning portion 611 from directly contacting an object in the oral cavity such as the tongue, thereby further reducing the burden on the object in the oral cavity.

[0159] Furthermore, since the cleaning unit 611 can be used to clean an object in the oral cavity while supplying liquid to the object, such as the tongue, the performance of removing dirt such as tongue coating can be further improved.

[0160] In addition, the head member 60 can be used while being cleaned with liquid, so the oral hygiene device nozzle 20 can be maintained in a cleaner state. In addition, if the head member 60 is used while being cleaned with liquid, it is possible to suppress the adhesion of dirt to the head member 60 during use, thereby further improving the removal performance of dirt such as tongue coating.

[0161] Thus, according to the above embodiment, it is possible to obtain the oral hygiene device nozzle 20 that can further reduce the burden on the object in the oral cavity, suppress the reduction in cleaning performance, and maintain a cleaner state.

[0162] That is, the nozzle 20 for the oral hygiene device shown in the above embodiment has the above structure, and uses the head component 60 while cleaning the head component 60 with liquid. Thus, the nozzle 20 for the oral hygiene device becomes a component that can keep the head component 60 clean and reduce the burden on objects in the oral cavity such as the tongue, while having cleaning performance.

[0163] Alternatively, the cleaning portion 611 may be fluff.

[0164] In this way, safety can be further improved, and the reduction in the performance of removing dirt such as tongue coating can be suppressed. In addition, by utilizing the surface tension of the hair to retain the liquid, the cleaning portion 611 can more reliably retain the liquid.

[0165] In addition, the cleaning portion 611 may include a plurality of ring portions F2a. Furthermore, the height of the ring portion F2a may be set to be greater than or equal to 0.5 mm and less than or equal to 10 mm.

[0166] This can further improve safety and prevent degradation of the removal performance of dirt such as tongue coating. In addition, if the cleaning portion 611 includes the ring portion F2a, the ring portion F2a can more reliably retain the liquid.

[0167] In addition, the fiber diameter FD of each fiber F of the cleaning portion 611 may be set to be greater than or equal to 0.001 mm and less than or equal to 0.05 mm.

[0168] This can suppress the discomfort felt during use and also suppress the reduction in the performance of removing dirt such as tongue coating.

[0169] Alternatively, the thickness of the head portion 40 may be greater than or equal to 5 mm and less than or equal to 15 mm, and the maximum outer diameter of the head portion 40 may be greater than or equal to 15 mm and less than or equal to 40 mm.

[0170] This can suppress the discomfort felt when the head 40 is placed in the oral cavity, thereby preventing the oral hygiene device nozzle 20 from being deteriorated in usability.

[0171] The head body 50 may also include a holder (base) 51 having a top surface (carrying surface) 511 a for carrying the head member 60 . Furthermore, the liquid supply path P3 may be formed near the holder (base) 51 .

[0172] In this manner, the liquid can be supplied to the cleaning portion 611 more reliably, and the head member 60 can be firmly held on the holder (base) 51 (the head member 60 can be held while suppressing deformation).

[0173] Alternatively, the head body 50 may include a cylindrical portion 52 that is continuous with one end of the nozzle handle 30 and into which the holder (base) 51 is inserted and held. Furthermore, the gap P3a formed on the outer periphery of the holder (base) 51 when the holder (base) 51 is inserted and held in the cylindrical portion 52 may constitute at least a portion of the liquid supply path P3.

[0174] In this way, the liquid can be distributed throughout the cleaning portion 611 with a simpler structure.

[0175] Furthermore, when the holder (base) 51 is inserted into and held in the cylindrical portion 52 and viewed along the axial direction of the cylindrical portion 52 , the gap P3 a may be formed over the entire outer circumference of the holder (base) 51 .

[0176] In this manner, the liquid can be gradually infiltrated from the entire periphery of the head member 60 toward the center of the cleaning portion 611. As a result, the liquid can be more reliably spread throughout the entire cleaning portion 611.

[0177] Alternatively, a first opening 521 may be formed on one side of the cylindrical portion 52 in the axial direction, and when the holder (base) 51 is inserted and held in the cylindrical portion 52 in a state where the head member 60 is supported on the top surface (supporting surface) 511a, the first opening 521 exposes the cleaning portion 611 of the head member 60. Furthermore, a detachment prevention portion 527 for suppressing the head member 60 from falling off from the head portion 40 (head body 50) and an outflow portion 528 for allowing the liquid in the gap P3a to flow out toward the first opening 521 side may also be formed on the peripheral edge of the first opening 521.

[0178] Thus, if the anti-detachment portion 527 that inhibits the head member 60 from falling off from the head 40 (head body 50) is formed on the periphery of the first opening 521, it is possible to more reliably prevent the head member 60 from falling off from the head 40 (head body 50) when using the oral hygiene device nozzle 20. In addition, if the outflow portion 528 that allows the liquid in the gap P3a to flow out toward the first opening 521 side is formed on the periphery of the first opening 521 that exposes the cleaning portion 611, it is possible to more reliably spread the liquid throughout the cleaning portion 611.

[0179] Alternatively, the cylindrical portion 52 may be formed with a covering region R2 that covers the holder (base) 51 from the axial side of the cylindrical portion 52 when the head portion 40 is viewed from the axial side of the cylindrical portion 52. Alternatively, the first opening 521 may be formed with an overlapping region R1 that overlaps with the gap P3a when the head portion 40 is viewed from the axial side of the cylindrical portion 52. Furthermore, the covering region R2 may constitute the retaining portion 527, and the overlapping region R1 may constitute the outflow portion 528.

[0180] In this way, if the covering region R2 is set as the retaining portion 527 and the overlapping region R1 is set as the outflow portion 528 , the retaining portion 527 and the outflow portion 528 can be provided more easily.

[0181] Furthermore, the head main body 50 may include a cover 53 that closes the second opening 523 on the other side of the cylindrical portion 52 in the axial direction.

[0182] In this manner, leakage of the liquid in the liquid supply path P3 from the second opening 523 can be suppressed, and therefore the liquid in the liquid supply path P3 can be more efficiently supplied to the cleaning portion 611 .

[0183] The holder (base) 51 may also include a cylindrical body 512 extending from the outer circumference of the top surface (supporting surface) 511a toward the other axial side of the cylindrical portion 52. Furthermore, the cover 53 may include a protrusion 532 that is inserted into the interior of the cylindrical body 512 (inner space P3b) to reduce the volume of the liquid supply path P3.

[0184] This can more reliably prevent the liquid from remaining in the liquid supply path P3 after use of the oral hygiene device nozzle 20. As a result, the head body 50 can be maintained in a cleaner state.

[0185] In addition, a throttle portion P2a may be formed in a communicating portion of the flow path P2 that communicates with the liquid supply path P3.

[0186] Thus, if the throttle portion P2a is formed in the communicating portion of the flow path P2 that communicates with the liquid supply path P3, for example, by setting the cross-sectional area of ​​the throttle portion P2a to a predetermined size, the flow rate of the liquid supplied to the liquid supply path P3 (the amount of liquid flowing in per unit time) can be controlled to a predetermined amount. In other words, a more appropriate amount of liquid can be supplied to the liquid supply path P3.

[0187] [other]

[0188] The contents of the oral hygiene device member of the present disclosure have been described above, but the above-mentioned embodiments are for illustrating the technology in the present disclosure, and therefore various changes, substitutions, additions, omissions, etc. can be made within the scope of the claims or their equivalents.

[0189] For example, in the above embodiment, a structure is illustrated in which the liquid supply path P3 (gap P3a) is formed near the holder (base) 51 (on the outer periphery of the cylindrical body 512). However, this structure is not limited to this, and the liquid supply path P3 may also be formed in the holder (base) 51. Such a structure can be achieved, for example, by providing a plurality of through-holes in the top wall portion 511 of the holder (base) 51. This also allows for more reliable liquid supply to the cleaning portion 611.

[0190] Alternatively, the liquid supply path P3 may be formed near the holder (base) 51 and on the holder (base) 51 .

[0191] In addition, in the above embodiment, as the sheet portion of the head member 60, an impermeable sheet portion F1 coated with an adhesive on the surface is exemplified, but a permeable sheet portion can also be used. If such a permeable sheet portion is used, liquid can be supplied to the cleaning portion 611 from the entire back surface.

[0192] Furthermore, in the above-described embodiment, the pile F2 having the loop portion F2a is exemplified, but hook-shaped pile may also be employed.

[0193] Furthermore, the specifications (shape, size, layout, etc.) of the head member 60 , the head portion 40 , and other detailed portions can also be changed as appropriate.

[0194] Industrial applicability

[0195] As described above, the components for oral hygiene devices disclosed herein can not only reduce the burden applied to objects in the oral cavity, but also suppress the reduction in cleaning performance and maintain a cleaner state. Therefore, they can be applied to devices that can output liquid for cleaning the oral cavity, specifically, oral rinsers, etc.

Claims

1. A component for an oral hygiene device, wherein: The oral hygiene device component comprises: a handle having a flow path through which liquid can pass; and The head portion includes a head body provided continuously with one end side of the handle portion, and a head member held by the head body. The head member has a cleaning portion formed of fibers, which is exposed from the head body when the head member is held in the head body and can clean an object in the oral cavity. The head portion is provided with a liquid supply path which is in communication with the flow path and can supply liquid to the cleaning portion. The head body has a base having a bearing surface for bearing the head member. The head body has a cylindrical portion that is continuously provided on one end side of the handle portion and can be inserted into and hold the base. In a state where the base is inserted into and held in the cylindrical portion, a gap formed on the outer periphery of the base constitutes at least a portion of the liquid supply path.

2. The member for an oral hygiene device according to claim 1, wherein The cleaning portion is fluff.

3. The member for an oral hygiene device according to claim 2, wherein: The cleaning portion has a plurality of ring portions, The height of the ring portion is greater than or equal to 0.5 mm and less than or equal to 10 mm.

4. The member for an oral hygiene device according to any one of claims 1 to 3, wherein The fibers have a fiber diameter of 0.001 mm or more and 0.05 mm or less.

5. The member for an oral hygiene device according to any one of claims 1 to 3, wherein The thickness of the head portion is greater than or equal to 5 mm and less than or equal to 15 mm, and the maximum outer diameter of the head portion is greater than or equal to 15 mm and less than or equal to 40 mm.

6. The member for an oral hygiene device according to any one of claims 1 to 3, wherein: The liquid supply path is formed on the base.

7. The member for an oral hygiene device according to any one of claims 1 to 3, wherein: When the state in which the base is inserted into and held in the cylindrical portion is viewed along the axial direction of the cylindrical portion, the gap is formed over the entire circumference of the outer peripheral side of the base.

8. The member for an oral hygiene device according to any one of claims 1 to 3, wherein A first opening is formed on one side of the cylindrical portion in the axial direction, and the first opening exposes the cleaning portion of the head member when the head member is placed on the placement surface and the base is inserted into and held in the cylindrical portion. A retaining portion for preventing the head member from falling off from the head portion and an outflow portion for allowing the liquid in the gap to flow out toward the first opening are formed on a peripheral edge portion of the first opening.

9. The member for an oral hygiene device according to claim 8, wherein The cylindrical portion is provided with a covering area, which covers the base from one side in the axial direction of the cylindrical portion when the head is observed from one side in the axial direction of the cylindrical portion. The covering area serves as the anti-slip portion. An overlapping region is formed in the first opening. When the head portion is viewed from one side in the axial direction of the cylindrical portion, the overlapping region overlaps with the gap. The overlapping region serves as the outflow portion.

10. The member for an oral hygiene device according to any one of claims 1 to 3, wherein The head body includes a cover that closes the second opening on the other axial side of the cylindrical portion.

11. The member for an oral hygiene device according to claim 10, wherein: The base has a cylindrical body extending from the outer periphery of the bearing surface to the other side of the cylindrical portion in the axial direction. The cap is formed with a protrusion, which is inserted into the interior of the cylinder to reduce the volume of the liquid supply path.

12. The member for an oral hygiene device according to any one of claims 1 to 3, wherein A throttle portion is formed at a communicating portion of the flow path that communicates with the liquid supply path.

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