WO2016204224A1 - Manche de brosse à dents, et brosse à dents - Google Patents

Manche de brosse à dents, et brosse à dents Download PDF

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Publication number
WO2016204224A1
WO2016204224A1 PCT/JP2016/067930 JP2016067930W WO2016204224A1 WO 2016204224 A1 WO2016204224 A1 WO 2016204224A1 JP 2016067930 W JP2016067930 W JP 2016067930W WO 2016204224 A1 WO2016204224 A1 WO 2016204224A1
Authority
WO
WIPO (PCT)
Prior art keywords
columnar
handle
head
toothbrush
side hinge
Prior art date
Application number
PCT/JP2016/067930
Other languages
English (en)
Japanese (ja)
Inventor
将嗣 北原
祐貴 猪谷
Original Assignee
ライオン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ライオン株式会社 filed Critical ライオン株式会社
Priority to KR1020177023223A priority Critical patent/KR20180020944A/ko
Priority to CN201680036004.2A priority patent/CN107708479A/zh
Publication of WO2016204224A1 publication Critical patent/WO2016204224A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0075—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being adjustable and stable during use
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0091—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body promoting relative motion during use
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the present invention relates to a toothbrush handle and a toothbrush.
  • This application claims priority based on Japanese Patent Application No. 2015-123742 filed in Japan on June 19, 2015, the contents of which are incorporated herein by reference.
  • Japanese Patent Application Laid-Open No. H10-228707 discloses a nigiri and a head (head) for the purpose of maintaining the action of the hair at a substantially constant angle with respect to the geometric axis of the toothbrush nail (handle part).
  • a toothbrush in which a neck (neck) connecting the two parts is formed by two vertical beams is described.
  • One aspect of the present invention is made in view of the above problems, and a toothbrush handle that easily maintains a constant angle of the head portion with respect to the handle portion regardless of the direction of the force applied to the head portion, and One object is to provide a toothbrush having such a toothbrush handle.
  • One aspect of the toothbrush handle of the present invention is a toothbrush handle that supports a head portion having a flocking surface on which a plurality of hair bundles are implanted, the handle portion extending in a first direction, the handle portion, and the head A neck portion that connects to the head portion, and the neck portion includes a plurality of columnar portions extending from the handle portion to the head portion, and the plurality of columnar portions include a first columnar portion and a second columnar portion.
  • a third columnar part wherein the first columnar part and the second columnar part are arranged along a second direction orthogonal to the first direction, and the third columnar part is In the third direction orthogonal to the first direction and the second direction, the first columnar part and the second columnar part are at different positions.
  • the columnar part includes a main body part, a handle part side hinge part that connects the main body part and the handle part, and a head part side hinge part that connects the main body part and the head part, At least a part of the handle part side hinge part and at least a part of the head part side hinge part have a dimension in the second direction and a dimension in the third direction, the dimension in the second direction in the main body part, and the It is good also as a structure smaller than the dimension of 3 directions.
  • the cross-sectional shape orthogonal to the extending direction of the columnar part in the handle part side hinge part and the head part side hinge part may be a circular shape.
  • the cross-sectional shape perpendicular to the extending direction of the columnar part in the main body part may be a circular shape.
  • the handle part side hinge part and the head part side hinge part have a plate shape having a main surface parallel to a surface including the first direction and the second direction, and the handle part side hinge part and the head part side It is good also as a structure by which the recessed part dented in the said 2nd direction is provided in the edge part of the both sides of the said 2nd direction in a hinge part.
  • the neck portion may include a covering portion that connects the columnar portions and covers at least a part of the surface of the columnar portion, and the hardness of the covering portion may be smaller than the hardness of the columnar portion.
  • the covering portion may cover the entire surface of the columnar portion.
  • the covering portion may cover a part of the surface of the columnar part, and the other part of the surface of the columnar part may be exposed to the outside.
  • the plurality of columnar portions may be arranged on a predetermined virtual circle when viewed in the extending direction of the neck portion and provided at equal intervals along the circumferential direction of the virtual circle.
  • the third columnar part may be configured to be at a position different from the first columnar part and the second columnar part in the second direction.
  • One aspect of the toothbrush of the present invention includes the toothbrush handle described above and the head portion supported by the toothbrush handle, wherein the flocked surface is perpendicular to the third direction. To do.
  • a toothbrush handle that easily maintains a constant angle of the head portion with respect to the handle portion regardless of the direction of the force applied to the head portion, and a toothbrush provided with such a toothbrush handle.
  • an XYZ coordinate system is appropriately shown as a three-dimensional orthogonal coordinate system.
  • the X-axis direction (second direction) is a direction parallel to the short direction of the toothbrush 10 shown in FIG. 1, that is, the up-down direction in FIG.
  • the Y-axis direction (first direction) is a direction parallel to the longitudinal direction of the toothbrush 10 shown in FIG. 1, that is, the left-right direction in FIG.
  • the Z-axis direction (third direction) is a direction orthogonal to both the X-axis direction and the Y-axis direction.
  • the X-axis direction may be simply referred to as the short direction
  • the Y-axis direction may be simply referred to as the longitudinal direction
  • the Z-axis direction may be simply referred to as the thickness direction.
  • FIG. 1 is a plan view, that is, a view seen from the + Z side to the ⁇ Z side.
  • FIG. 2 is a side view, that is, a view seen in the X-axis direction.
  • 3 is a sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
  • FIG. 5 is a perspective view showing a portion of the toothbrush 10.
  • the toothbrush 10 includes a head portion 13 and a toothbrush handle 14.
  • the toothbrush handle 14 is a handle for supporting the head portion 13, and the head portion 13 is supported by the toothbrush handle 14.
  • the head unit 13 includes a head main body unit 15 and a hair bundle group 20 including a plurality of hair bundles 20a.
  • the head main body 15 extends along the longitudinal direction (Y-axis direction).
  • the head main body 15 has a flocked surface 15a on which a plurality of hair bundles 20a are implanted.
  • the flocked surface 15a is perpendicular to the thickness direction (Z-axis direction, third direction). As shown in FIG. 2, the plurality of hair bundles 20a extend from the flocked surface 15a to one side in the thickness direction (+ Z side).
  • the toothbrush handle 14 is connected to one side ( ⁇ Y side) in the longitudinal direction of the head portion 13.
  • the toothbrush handle 14 supports the head unit 13.
  • the toothbrush handle 14 includes a handle portion 11 and a neck portion 12.
  • the handle portion 11 is a portion to be gripped in the toothbrush 10.
  • the handle portion 11 extends in the longitudinal direction (Y-axis direction, first direction).
  • the neck portion 12 connects the handle portion 11 and the head portion 13. Thereby, the handle
  • the neck portion 12 has a plurality of columnar portions and a covering portion 30.
  • the plurality of columnar portions include a first columnar portion 41, a second columnar portion 42, and a third columnar portion 43.
  • the handle portion 11, the plurality of columnar portions, and the head main body portion 15 are, for example, a single member.
  • the first columnar part 41, the second columnar part 42, and the third columnar part 43 extend from the handle part 11 in the longitudinal direction (Y-axis direction, first direction).
  • the first columnar part 41, the second columnar part 42, and the third columnar part 43 extend from the handle part 11 to the head part 13. More specifically, the first columnar section 41, the second columnar section 42, and the third columnar section 43 are arranged on the handle section 11 side of the head main body section 15 from the end of the handle section 11 on the head section 13 side (+ Y side). Extends to the ( ⁇ Y side) end. That is, in the state shown in FIGS. 1 and 2, the first columnar part 41, the second columnar part 42, and the third columnar part 43 extend along the longitudinal direction (Y-axis direction).
  • the first columnar portion 41 and the second columnar portion 42 have a lateral direction (X-axis direction, second direction) orthogonal to the longitudinal direction (Y-axis direction, first direction). Line up along. That is, the first columnar part 41 and the second columnar part 42 are at the same position in the thickness direction (Z-axis direction).
  • the third columnar portion 43 is formed in the thickness direction (Z-axis direction, third direction) orthogonal to the longitudinal direction (Y-axis direction) and the short-side direction (X-axis direction).
  • the first columnar part 41 and the second columnar part 42 are in different positions.
  • the third columnar portion 43 is located on the opposite side ( ⁇ Z side) to the flocked surface 15a in the thickness direction with respect to the first columnar portion 41 and the second columnar portion.
  • the third columnar portion 43 is in a position different from the first columnar portion 41 and the second columnar portion 42 in the short direction (X-axis direction, second direction).
  • the third columnar portion 43 is located between the first columnar portion 41 and the second columnar portion 42 when viewed in the thickness direction (Z-axis direction).
  • the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43 do not overlap each other when viewed in the thickness direction.
  • a plurality of columnar portions that is, the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43 are in the direction in which the neck portion 12 extends, in the example of FIG. When viewed in the axial direction, it is located on a predetermined virtual circle C1.
  • the 1st columnar part 41, the 2nd columnar part 42, and the 3rd columnar part 43 are provided at equal intervals along the circumferential direction of the virtual circle C1.
  • the center of the third columnar portion 43 is located, for example, at the same position as the center CP of the virtual circle C1 in the short direction (X-axis direction).
  • the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43 have the same configuration except for the position where they are arranged. Therefore, in the following description, the first columnar portion 41 is representatively represented. There may only be explained.
  • the first columnar part 41 includes a main body part 41a, a handle part side hinge part 41b, and a head part side hinge part 41c.
  • the main body 41 a has a columnar shape extending in the longitudinal direction (Y-axis direction). That is, as shown in FIG. 4, the shape of the cross section orthogonal to the extending direction (Y-axis direction) of the first columnar portion 41 in the main body portion 41a is a circular shape.
  • the handle part side hinge part 41 b connects the main body part 41 a and the handle part 11.
  • the handle part side hinge part 41 b has a shape in which the center of the cylinder is constricted. That is, as shown in FIG. 4, in this embodiment, the shape of the cross section orthogonal to the direction in which the first columnar portion 41 extends in the handle portion side hinge portion 41b is a circular shape.
  • the diameter D2 of the handle part side hinge part 41b is the smallest in the center in the longitudinal direction (Y-axis direction) of the handle part side hinge part 41b, and increases as the distance from the center in the longitudinal direction increases to both sides in the longitudinal direction ( ⁇ Y side).
  • a diameter D2 at both ends in the longitudinal direction of the handle part side hinge part 41b is the same as the diameter D1 of the main body part 41a. That is, the diameter D2 of the handle part side hinge part 41b is smaller than the diameter D1 of the main body part 41a except for the ends on both sides in the longitudinal direction.
  • the handle portion side hinge 41b has a short dimension (X-axis direction, second direction) and a thickness direction (Z-axis direction, third direction) that are short in the main body 41a. It is smaller than the dimension in the hand direction and the dimension in the thickness direction.
  • the dimension of the handle part side hinge part 41b excluding the ends on both sides in the longitudinal direction is smaller than the dimension of the main body part 41a in all directions orthogonal to the longitudinal direction (Y-axis direction).
  • the head part side hinge part 41 c connects the main body part 41 a and the head part 13. More specifically, the head portion side hinge portion 41 c connects the main body portion 41 a and the head main body portion 15.
  • the other structure of the head part side hinge part 41c is the same as that of the handle part side hinge part 41b. That is, at least a part of the head part side hinge part 41c is smaller in dimensions in the short side direction (X-axis direction) and in the thickness direction (Z-axis direction) than the main body part 41a.
  • the shape of the cross section orthogonal to the extending direction of the first columnar part 41 in the head part side hinge part 41c is a circular shape.
  • the second columnar part 42 includes a main body part 42a, a handle part side hinge part 42b, and a head part side hinge part 42c.
  • the third columnar part 43 includes a main body part 43a, a handle part side hinge part 43b, and a head part side hinge part 43c.
  • the configurations of the main body portions 42a and 43a are the same as the configuration of the main body portion 41a.
  • the structure of the handle part side hinge parts 42b and 43b is the same as the structure of the handle part side hinge part 41b.
  • the configuration of the head portion side hinge portions 42c and 43c is the same as the configuration of the head portion side hinge portion 41c.
  • the first columnar portion 41 is made of, for example, a hard resin.
  • the hard resin include polypropylene (PP: Polypropylene), polyoxymethylene (POM), polybutylene terephthalate (PBT), polyethylene terephthalate (PET): Polyethylene terephthalate (PET). Terephthalate), a resin (PCTA resin) in which a part of the acid component of PCT is replaced with isopropyl alcohol (IPA: Isopropyl Alcohol).
  • the hard resin forming the first columnar portion 41 is, for example, PBT or POM. This is because PBT and POM are excellent in fatigue strength.
  • the hardness of the hard resin forming the first columnar part 41 is, for example, 70 degrees or more and 90 degrees or less.
  • the hardness of the resin is a value when measured with a type A durometer based on JIS K 6253-3: 2012.
  • the covering portion 30 extends from the handle portion 11 to the head portion 13. More specifically, the covering portion 30 extends from an end portion on the head portion 13 side (+ Y side) of the handle portion 11 to an end portion on the handle portion 11 side ( ⁇ Y side) of the head main body portion 15. As shown in FIGS. 1 to 3, in the present embodiment, the covering portion 30 has a cylindrical shape extending in the longitudinal direction (Y-axis direction).
  • the covering portion 30 connects the columnar portions, that is, the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43.
  • the covering part 30 covers at least a part of the surface of the first columnar part 41, at least a part of the surface of the second columnar part 42, and at least a part of the surface of the third columnar part 43.
  • the covering portion 30 covers the entire surface of the first columnar portion 41, the entire surface of the second columnar portion 42, and the entire surface of the third columnar portion 43. That is, in the present embodiment, the entire first columnar portion 41, the entire second columnar portion 42, and the entire third columnar portion 43 are embedded in the covering portion 30.
  • the cross-sectional shape orthogonal to the direction (Y-axis direction) in which the neck portion 12 of the covering portion 30 extends in the present embodiment is, for example, a circular shape.
  • the center of the cross section of the covering portion 30 coincides with the center CP of the virtual circle C1.
  • the hardness of the covering portion 30 is smaller than the hardness of the first columnar portion 41.
  • the covering portion 30 is made of a soft resin, for example.
  • the soft resin is, for example, a thermoplastic elastomer (TPE: Thermoplastic Elastomers).
  • TPE thermoplastic elastomer
  • the hardness of the soft resin forming the covering portion 30 is, for example, 25 degrees or more and 65 degrees or less.
  • the hardness of the covering portion 30 can be determined, for example, according to the repulsive force during brushing that the user likes.
  • the neck portion 12 has three columnar portions, that is, a first columnar portion 41, a second columnar portion 42, and a third columnar portion 43.
  • the 1st columnar part 41 and the 2nd columnar part 42 are located in a line in the transversal direction, and the 3rd columnar part 43 exists in the position different from the 1st columnar part 41 and the 2nd columnar part 42 in the thickness direction. Therefore, in any direction orthogonal to the longitudinal direction, at least two of the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43 are at different positions. In other words, the first columnar part 41, the second columnar part 42, and the third columnar part 43 are not at the same position in any direction orthogonal to the longitudinal direction.
  • the structure similar to the parallel link mechanism is formed by at least two columnar portions, the head main body portion 15 and the handle portion 11. It is formed. Therefore, the neck portion 12 is deformed while maintaining the relative angle between the head main body portion 15 and the handle portion 11 even when a force is applied to the head portion 13 in any direction orthogonal to the longitudinal direction.
  • Cheap As a result, it is possible to suppress the relative angle between the head portion 13 and the handle portion 11 from changing.
  • the toothbrush handle 14 that easily maintains the angle of the head portion 13 with respect to the handle portion 11 regardless of the direction of the force applied to the head portion 13, and such a toothbrush handle 14 are provided.
  • a toothbrush 10 is obtained.
  • FIGS. 6 and 7 are explanatory diagrams for explaining the effect of the present embodiment.
  • FIG. 6 shows a case where the toothbrush 10 according to the present embodiment is brushed by moving in the longitudinal direction (Y-axis direction).
  • FIG. 7 shows a case where the toothbrush 10 according to this embodiment is brushed by moving in the short direction (X-axis direction).
  • the toothbrush 10 when the toothbrush 10 is moved in the short direction (X-axis direction), for example, any one of the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43 is used.
  • the head main body portion 15 and the handle portion 11 form a structure similar to the parallel link mechanism.
  • the longitudinal direction of the head main body portion 15 is suppressed from being inclined with respect to the longitudinal direction of the handle portion 11. Therefore, the head unit 13 can be moved in parallel with the tooth row T in the short direction (X-axis direction), and the tooth row T can be brushed appropriately.
  • the first columnar part 41 includes the handle part side hinge part 41b and the head part side hinge part 41c. Therefore, the first columnar portion 41 is more likely to operate in the same manner as the link constituting the parallel link mechanism by bending the handle portion side hinge portion 41b and the head portion side hinge portion 41c. That is, even when the angle of the neck portion 12 changes, the relative angle between the head portion 13 and the handle portion 11 can be more easily maintained.
  • Brushing as shown in FIGS. 6 and 7, that is, brushing for moving the toothbrush 10 in the longitudinal direction (Y-axis direction) and brushing for moving the toothbrush 10 in the short-side direction (X-axis direction) are particularly easily performed. Therefore, it is particularly required that the relative angle between the head portion 13 and the handle portion 11 does not change when brushing as shown in FIGS. 6 and 7 is performed.
  • At least a part of the handle part side hinge part 41b and at least a part of the head part side hinge part 41c have a dimension in the short side direction (X-axis direction) and a thickness direction (Z
  • the dimension in the axial direction is smaller than the dimension in the lateral direction and the dimension in the thickness direction of the main body 41a. Therefore, the handle part side hinge part 41b and the head part side hinge part 41c are easily bent in the lateral direction and the thickness direction.
  • the head portion 13, the neck portion 12, and the handle portion 11 are more likely to operate similarly to the parallel link mechanism. Therefore, according to this embodiment, when performing brushing as shown in FIGS. 6 and 7, it is possible to further suppress the relative angle between the head portion 13 and the handle portion 11 from changing.
  • the shape of the cross section orthogonal to the direction in which the first columnar part 41 extends in the handle part side hinge part 41b and the head part side hinge part 41c is circular. Therefore, the handle part side hinge part 41b and the head part side hinge part 41c are easily bent in any direction orthogonal to the direction in which the first columnar part 41 extends. The same applies to the second columnar portion 42 and the third columnar portion 43. As a result, even if a force in any direction orthogonal to the longitudinal direction (Y-axis direction) is applied to the head portion 13, the head body portion 15, the neck portion 12, and the handle portion 11 are more parallel links. Easy to operate like the mechanism.
  • the 1st columnar part 41, the 2nd columnar part 42, and the 3rd columnar part 43 are connected by the coating
  • the covering portion 30 has a lower hardness than the first columnar portion 41. Therefore, it is difficult to inhibit the handle part side hinge part 41b and the head part side hinge part 41c of the first columnar part 41 from being deformed.
  • the covering portion 30 covers the entire surface of the first columnar portion 41. Therefore, even if the first columnar part 41 is damaged, it is possible to suppress a part of the first columnar part 41 from falling off.
  • the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43 are located on the virtual circle C1 when viewed in the extending direction of the neck portion 12, and Are provided at equal intervals along the circumferential direction of the virtual circle C1. Therefore, in any direction orthogonal to the longitudinal direction (Y-axis direction), a structure similar to the parallel link mechanism including the columnar portions, the head main body portion 15 and the handle portion 11 is easily formed stably. Moreover, it is easy to improve the strength of the neck portion 12 evenly in any direction orthogonal to the longitudinal direction.
  • the third columnar portion 43 is located at a position different from the first columnar portion 41 and the second columnar portion 42 in the short side direction (X-axis direction). Therefore, each columnar part can be formed using a mold 50 as shown in FIG. FIG. 8 is a view showing a mold 50 for manufacturing the toothbrush 10.
  • the mold 50 includes a first mold 51 and a second mold 52.
  • the first mold 51 has a first molding recess 51a, a second molding recess 51b, and a third molding recess 51c.
  • the first molding recess 51a, the second molding recess 51b, and the third molding recess 51c are recessed on one side in the thickness direction (+ Z side).
  • the second mold 52 has a first molding recess 52a, a second molding recess 52b, and a third molding recess 52c.
  • the first molding recess 52a, the second molding recess 52b, and the third molding recess 52c are recessed on the other side in the thickness direction ( ⁇ Z side).
  • the first molding space 53, the second molding space 54, and the third molding space 55 are formed by combining the first mold 51 and the second mold 52 in the thickness direction (Z-axis direction).
  • the first molding space 53 is formed by the first molding recess 51a and the first molding recess 52a.
  • the second molding space 54 is formed by the second molding recess 51b and the second molding recess 52b.
  • the third molding space 55 is formed by the third molding recess 51c and the third molding recess 52c.
  • the first columnar portion 41 is molded by pouring resin into the first molding space 53.
  • the second columnar portion 42 is molded.
  • the third columnar portion 43 is molded.
  • the first columnar portion 41, the second columnar portion 42, and the third columnar portion 43 are located at different positions in the short direction (X-axis direction).
  • Three columnar portions can be formed at a time using a mold 50 including two parts, that is, a first mold 51 and a second mold 52. Therefore, according to this embodiment, the structure of the metal mold
  • the following configuration can also be adopted.
  • the same configurations as those described above may be omitted by appropriately attaching the same reference numerals.
  • the direction in which the first columnar part 41 extends, the direction in which the second columnar part 42 extends, and the direction in which the third columnar part 43 extends may not be strictly parallel.
  • the extending directions of the respective columnar portions may be inclined with respect to each other within a range of 10 ° or less from directions parallel to each other.
  • first columnar part 41, the second columnar part 42, and the third columnar part 43 do not have to be located at equal intervals in the circumferential direction on the virtual circle C1. In the present embodiment, the first columnar part 41, the second columnar part 42, and the third columnar part 43 may not be located on the virtual circle C1.
  • the direction (second direction) in which the first columnar part 41 and the second columnar part 42 are arranged is the direction parallel to the short direction of the toothbrush 10, but is not limited thereto.
  • the direction in which the first columnar portion 41 and the second columnar portion 42 are arranged may be any direction orthogonal to the longitudinal direction. Accordingly, the direction in which the first columnar part 41 and the second columnar part 42 are arranged and the direction orthogonal to the longitudinal direction of the toothbrush 10 (third direction) may not be perpendicular to the flocked surface 15a.
  • FIG. 9 is a cross-sectional view showing a toothbrush 110 which is another example of the present embodiment.
  • the toothbrush 110 includes a toothbrush handle 114.
  • the toothbrush handle 114 has a neck portion 112.
  • the neck portion 112 includes a first columnar portion 41, a second columnar portion 42, a third columnar portion 43, and a covering portion 130.
  • the covering part 130 covers a part of the surface of the first columnar part 41, a part of the surface of the second columnar part 42, and a part of the surface of the third columnar part 43.
  • the diameter of the covering portion 130 is smaller than the diameter of the covering portion 30 shown in FIG.
  • Other configurations of the covering portion 130 are the same as the configurations of the covering portion 30 shown in FIG.
  • the other part of the surface of the first columnar part 41, the other part of the surface of the second columnar part 42, and the other part of the surface of the third columnar part 43 are exposed to the outside.
  • the other part of the surface of each columnar part is the entire part other than the part covered by the covering part 130 in the surface of each columnar part, or the part other than the part covered by the covering part 130 in the surface of each columnar part It is a part of the part. In this embodiment, the whole part other than the part covered with the coating
  • the neck portion 112 can be easily thinned. Moreover, since the quantity of the material which forms the coating
  • the number of columnar portions is not particularly limited as long as the columnar portions include at least the first columnar portion, the second columnar portion, and the third columnar portion. For example, as shown in FIG. Moreover, four or more may be sufficient. As the number of columnar portions is larger, the same structure as the parallel link is more stably formed stably in any direction orthogonal to the longitudinal direction (Y-axis direction).
  • FIG. 10 is a cross-sectional view showing a toothbrush 210 which is another example of the present embodiment.
  • the toothbrush 210 includes a toothbrush handle 214.
  • the toothbrush handle 214 has a neck portion 212.
  • the neck part 212 includes five columnar parts 241, 242, 243, 244, 245 and a covering part 30.
  • the five columnar parts 241 to 245 are located on a predetermined virtual circle C2 when viewed in the Y-axis direction.
  • the columnar portions 241 to 245 are provided at equal intervals along the circumferential direction of the virtual circle C2. In this configuration, when any two of the columnar portions 241 to 245 are the first columnar portion and the second columnar portion, the other three of the columnar portions 241 to 245 correspond to the third columnar portion. .
  • the shape of the cross section orthogonal to the extending direction of the first columnar portion 41 in the handle portion side hinge portion 41b and the head portion side hinge portion 41c is not particularly limited, and may be a polygonal shape, It may be oval. In the present embodiment, the handle portion side hinge portion 41b and the head portion side hinge portion 41c may not be provided.
  • the entire handle portion side hinge portion 41b and the entire head portion side hinge portion 41c may be configured such that the short side dimension and the thickness direction dimension are smaller than the main body part 41a.
  • At least a part of the handle part side hinge part 41b and at least a part of the head part side hinge part 41c are only one of the dimension in the lateral direction and the dimension in the thickness direction. It may be smaller than the main body 41a.
  • the handle part side hinge part 41b and the head part side hinge part 41c may not be provided.
  • the covering portion 30 may not be provided.
  • the head main body 15 may be a separate member from the toothbrush handle 14.
  • the plurality of columnar portions and the handle portion 11 may be separate members.
  • the second embodiment differs from the first embodiment in the shape of the hinge portion.
  • the same configurations as those in the above embodiment may be omitted by appropriately attaching the same reference numerals.
  • FIG. 11 is a perspective view showing a portion of the toothbrush 310 of the present embodiment.
  • the toothbrush 310 includes a toothbrush handle 314.
  • the toothbrush handle 314 has a handle portion 11 and a neck portion 312.
  • the neck portion 312 has a first columnar portion 341.
  • the first columnar part 341 includes a main body part 41a and a handle part side hinge part 341b.
  • the handle part side hinge part 341b has a plate shape.
  • the handle part side hinge part 341b has a main surface 341d parallel to a surface (XY plane) including the longitudinal direction (Y-axis direction) and the lateral direction (X-axis direction).
  • a main surface of a certain object includes a surface having the largest area among a plurality of surfaces of a certain object.
  • concave portions 344a and 344b that are recessed in the short direction are provided at both ends in the short direction (X-axis direction).
  • the concave portion 344a is recessed from one side ( ⁇ X side) in the short direction of the hinge portion 341b on the handle side to the other side (+ X side) in the short side.
  • the recess 344b is recessed from the other side in the short side direction (+ X side) of the handle part side hinge 341b to one side in the short side direction ( ⁇ X side).
  • the handle portion side hinge portion 341b has a dimension L1 in the short direction (X-axis direction) smaller than the diameter D1 of the main body portion 41a.
  • the dimension L2 in the thickness direction (Z-axis direction) of the handle part side hinge part 341b is smaller than the diameter D1 of the main body part 41a. That is, at least a part of the handle part side hinge part 341b is smaller in dimensions in the short side direction (X-axis direction, second direction) and in the thickness direction (Z-axis direction, third direction) than the main body part 41a.
  • the other structure of the handle part side hinge part 341b is the same as that of the handle part side hinge part 41b of the first embodiment.
  • the first columnar portion 341 has a head portion side hinge portion.
  • the head part side hinge part has a plate shape having a main surface parallel to a plane including the longitudinal direction (Y axis direction) and the short side direction (X axis direction).
  • a concave portion that is recessed in the short direction is provided at both ends of the head portion side hinge portion in the short direction.
  • the other structure of the head part side hinge part in the 1st columnar part 341 is the same as that of the structure of the head part side hinge part 41c of 1st Embodiment.
  • the neck portion 312 has a second columnar portion and a third columnar portion.
  • the second columnar portion and the third columnar portion in the neck portion 312 are the same as the first columnar portion 341 except that the positions are different.
  • the positions of the second columnar portion and the third columnar portion in the neck portion 312 are the same as the positions of the second columnar portion 42 and the third columnar portion 43 in the first embodiment.
  • the handle portion side hinge portion 341b is particularly easily bent in the short side direction (X-axis direction) and the thickness direction (Z-axis direction). Therefore, when the toothbrush 310 is moved and brushed as shown in FIGS. 6 and 7, the relative angle of the head portion 13 with respect to the handle portion 11 is less likely to change. Therefore, according to this embodiment, when the toothbrush 310 is moved and brushed as shown in FIGS. 6 and 7, the tooth row T can be brushed more appropriately.
  • the recesses 344a and 344b may not be provided.
  • the handle portion side hinge portion 341b has a plate shape whose main surface 341d is rectangular.
  • the handle portion side hinge portion 341b and the main body portion 41a may be smoothly connected, or the main surface 341d and the end surface of the main body portion 41a on the handle portion 11 side ( ⁇ Y side) It may be connected via a slope inclined with respect to. According to this configuration, the connection strength between the handle portion side hinge portion 341b and the main body portion 41a can be improved. The same applies to the handle portion side hinge portion 341b and the handle portion 11.

Landscapes

  • Brushes (AREA)

Abstract

Un mode de réalisation de ce manche de brosse à dents est un manche de brosse à dents pour supporter une partie de tête qui a une surface d'implantation de crin, dans laquelle une pluralité de touffes de crins sont implantées, le manche de brosse à dents étant caractérisé par le fait : qu'il comprend une partie de manche s'étendant dans une première direction, et une partie de col pour relier la partie de manche et la partie de tête ; la partie de col ayant une pluralité de parties en colonne s'étendant de la partie de manche à la partie de tête ; la pluralité de parties en colonne comprenant au moins une première partie en colonne, une deuxième partie en colonne et une troisième partie en colonne ; la première partie en colonne et la deuxième partie en colonne s'étendant le long d'une deuxième direction orthogonale à la première direction ; et la troisième partie en colonne étant située au niveau d'une position différente de celles de la première partie en colonne et de la deuxième partie en colonne dans une troisième direction orthogonale aux première et deuxième directions.
PCT/JP2016/067930 2015-06-19 2016-06-16 Manche de brosse à dents, et brosse à dents WO2016204224A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020177023223A KR20180020944A (ko) 2015-06-19 2016-06-16 칫솔 핸들 및 칫솔
CN201680036004.2A CN107708479A (zh) 2015-06-19 2016-06-16 牙刷柄以及牙刷

Applications Claiming Priority (2)

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JP2015123742A JP6552091B2 (ja) 2015-06-19 2015-06-19 歯ブラシハンドルおよび歯ブラシ
JP2015-123742 2015-06-19

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WO2016204224A1 true WO2016204224A1 (fr) 2016-12-22

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KR (1) KR20180020944A (fr)
CN (1) CN107708479A (fr)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220047064A1 (en) * 2018-12-27 2022-02-17 Lion Corporation Toothbrush
TWI766856B (zh) * 2016-03-09 2022-06-11 日商獅子股份有限公司 牙刷

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08332116A (ja) * 1995-02-01 1996-12-17 Johnson & Johnson Consumer Prod Inc 歯ブラシ
US5987690A (en) * 1995-05-30 1999-11-23 Heuler; Uwe Resilient toothbrush

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201831194U (zh) * 2010-09-29 2011-05-18 徐秋萍 一种注塑刷毛牙刷
US9462877B2 (en) * 2010-12-21 2016-10-11 Colgate-Palmolive Company Oral care implement
JP5830277B2 (ja) * 2011-06-20 2015-12-09 ライオン株式会社 歯ブラシ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08332116A (ja) * 1995-02-01 1996-12-17 Johnson & Johnson Consumer Prod Inc 歯ブラシ
US5987690A (en) * 1995-05-30 1999-11-23 Heuler; Uwe Resilient toothbrush

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI766856B (zh) * 2016-03-09 2022-06-11 日商獅子股份有限公司 牙刷
US20220047064A1 (en) * 2018-12-27 2022-02-17 Lion Corporation Toothbrush

Also Published As

Publication number Publication date
JP6552091B2 (ja) 2019-07-31
KR20180020944A (ko) 2018-02-28
CN107708479A (zh) 2018-02-16
JP2017006304A (ja) 2017-01-12

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