Classifications

• • 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
  • A46B5/0083—Mechanical joint allowing adjustment in at least one plane
• • 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
  • 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 an oral sanitary device that can change the angle of a handle of an oral sanitary device such as a toothbrush by arbitrarily and continuously bending the angle, and can maintain the angle completely fixed.
• a conventional oral sanitary device is provided with a brush, a toothpick, a toothpick, an oral mirror, a foam rubber plate for massage, or an injector for silent cleaning at the tip of a handle.
• Fig. 4 shows only the bent portion of the handle of the Japanese Utility Model No. 58-48787 ', but according to this figure, it is set at an arbitrary angle with the first handle 5.
• the brush composed of the second handle 7 fixed at the arbitrary angle has a sawtooth portion 6 provided on the first handle 5, and the second handle 7 has a tooth engaging with the sawtooth portion 6.
• the brush provided with the top 8 is shown.
• the first pattern 5 and the second pattern 7 can be arbitrarily set. It is practically possible to set the angle, and bending of the handle requires both hands, one hand holding the first handle 5 and the other hand operating the collar 8. Is required.
• this mechanism is a single point contact between the rib 8 and one of the valleys of the sawtooth portion 6, and a so-called backlash occurs at the connection between the rib 8 and the sawtooth portion 6 to rattle. Therefore, it is hard to say that it is completely fixed. Furthermore, if the user tries to brush the teeth by gripping the second handle 7, a very large force is applied to the joint between the tongue 8 and the saw tooth portion 6, and to the shaft attachment part of the tongue 8, The paper 8 acts like a lever, and the shaft portion of the first handle 5 and the second handle 7 is loosened. The sharpened end of the collar 8 loosens the joint, making it virtually useless.
• the present invention is provided with a brush, a foamed rubber plate for massage, a toothpick, a toothpick, a mouth mirror, an injector for washing the mouth, etc. at the tip of the handle.
• the present invention provides an oral hygiene device that can change the bending angle of the handle completely and continuously with only one hand without causing a problem such as a crash.
• the present invention relates to an oral hygiene device in which a distal end function portion and a handle portion are rotatably mounted on a rotating shaft, wherein the end portion of the distal end portion or the end portion of the handle portion is provided.
• an oral hygiene device in which a substantial worm wheel is fixedly provided on one side, and a worm wheel gear that fits with the worm wheel is rotatably provided on the other side, and a knob is attached to the worm gear. did.
• the tip function part is a brush, a foam rubber plate for massage, a toothpick, a toothpick, an endoscope, or an injector for washing the mouth at the end part integrated with the handle part Points that serve as functional units for oral hygiene.
• the worm wheel can be installed in the worm wheel itself or at the required part of the worm wheel (maximum bending of the oral hygiene section). Only the area corresponding to the angle, which substantially matches the worm gear) may be integrally molded at the stage of molding either the end of the tip function part or the end of the handle part. .
• FIG. 1 is an overall perspective view showing an embodiment of an oral sanitary device according to the present invention in which a handle can be continuously bent and fixed
• Fig. 2 is a partial sectional front view of the present invention
• FIG. 3 is a perspective view showing a use state of the present invention
• FIG. 4 is a front view of a main part of a conventional oral hygiene device.
• a toothbrush is taken as an example of an oral hygiene device.
• the present invention is not particularly limited to this embodiment.
• a brush section 10 as a tip function section in which the brush 11 is planted and a handle section 1 are pivotally mounted on a rotating shaft 4.
• a worm wheel 2 is fixedly provided at an end of the worm wheel 0, and a worm gear 3 which is mated with the worm wheel 2 is rotatably provided at one end of the handle 1 and a worm shaft is provided at the worm gear 3.
• Knob 31 is attached by 30. .
• the bending angle between the brush part 10 and the handle part 1 can be completely set to an arbitrary angle.
• the hand holding the handle 1 and the hand operating the knob 31 can be the same hand, that is, it can be completely operated with one hand.
• this worm combining mechanism has a complete contact between the worm wheel 2 and the worm gear 3 without backlash due to the so-called backlash in the connection between the worm wheel 2 and the worm gear 3 because the two valleys are in contact at multiple points. Since it is in a fixed state, there is almost no concern that rattling may occur in the future even if a relatively large force is applied.
• the conventional handle is a straight toothbrush, for example, when brushing the back of the lower front tooth (which is a very hard part), the brush on the back of the tooth can be applied to the elbow of the arm. It was necessary to take an extremely unnatural posture, such as lifting the hand high, but the feature of this embodiment is that it is easy to work with only the wrist exercise while keeping the elbows aside. Can be raised. This is especially pleasing to older people who have become physically unnatural.
• the tip bending angle of the brush part 10 can be continuously fine-tuned regardless of the arrangement of the teeth or any part of the teeth. It will be perfectly fixed at the angle that suits you best and will be easy to polish.
• the combination of the worm gear and the worm wheel as in the present embodiment can realize this with a small gear, and in this regard, the bent portion is more coaxial than other toothbrushes using a large gear. It can be configured as a compact.
• the tip function section is made detachable, so that it is convenient when using various kinds of tip sections and when replacing them with spares. That is, in FIG. 2, for example, the brush part 10 is composed of two separate parts, a part to which the worm wheel 2 is attached, and a part to which the brush 11 is planted, and the two parts are detachable. The part where the brush 11 1 is planted is used as a replacement spare.
• the length of the handle of the advanced function part be different for adults and children. It may be preferable to form an arch on the tip function part or a part of the handle.
• the gear ratio can be freely changed by interposing another gear in this gear train.Therefore, the ratio between the rotation angle of the knob and the bending angle of the tip function section must be set arbitrarily. Is possible. With this configuration, the tip function section can be bent greatly with only a slight turn of the knob, and the speed up to the desired angle can be achieved.
• a crown gear or a helical gear can be used on the worm wheel side of the gear train.
• the handle can be continuously bent and fixed, there is no problem such as backlash in the gear train, and the handle portion is arbitrarily and continuously performed with only one hand.
• the bending angle of the brush part with respect to is changed and can be fixed at any position.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Brushes (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=14906751

Family Applications (1)

Country Status (4)

Families Citing this family (4)

Citations (5)

• 1988
  • 1988-09-26 JP JP1988125303U patent/JPH0646347Y2/ja not_active Expired - Lifetime
• 1989
  • 1989-09-20 WO PCT/JP1989/000952 patent/WO1990003129A1/ja not_active Application Discontinuation
  • 1989-09-20 KR KR1019900701049A patent/KR940010030B1/ko not_active Expired - Fee Related
  • 1989-09-20 EP EP19890910665 patent/EP0396764A4/en not_active Withdrawn

Patent Citations (5)

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