TW201517842A - Angle-adjustable toothbrush - Google Patents

Abstract

An angle-adjustable toothbrush comprises a bristle portion, a bristle base and a handle. The bristle portion is fixed on the bristle base. The front end of the handle is rotatably connected with the bristle base allowing the user freely adjusting the angle between the handle and the bristle base. Thus, the present invention provides an angle-adjustable toothbrush, which is complied with ergonomics and easy to use without much effort, encourages the user to brush teeth in the correct direction, and further improve the teeth and oral health.

Description

Angle adjustable toothbrush

The present invention relates to cleaning appliances for teeth and mouth, and more particularly to the construction of a toothbrush.

The cleaning and health care of the teeth is a daily work that modern people must do. The number of times people should brush their teeth at least every day is a matter of saying. In principle, you should brush your teeth and clean your mouth after eating. The purpose is to remove the adhesion and residue in the teeth. The food in the gums and mouth to prevent the growth of bacteria and the health of the teeth.

Although a wide variety of appliances for cleaning teeth and mouth are known, including toothbrushes, floss and floss sticks, most people still use toothbrushes as the primary means of cleaning their teeth. There are many types of commercially available toothbrushes, and toothbrush manufacturers are constantly researching and designing new types of toothbrushes, and many different materials are also continuously used to make toothbrushes, with the aim of improving or imparting new functions or functions to the toothbrush, such as the softness of toothbrush grips. Hardness, the shape of the bristle tip, the arrangement of the bristles, and the bristles that show the degree of wear or service life. However, the traditional toothbrush structure has not changed much for a long time.

The conventional toothbrush construction includes: a bristles, a bristle holder and a grip, wherein the bristles are fixedly disposed on the bristle holder, the bristle holder has a substantially elongated shape for laterally moving back and forth in the mouth, and the grip is fixedly coupled to the bristle holder, the grip The axial extension direction is consistent with the long axis direction of the bristle holder. Specifically, the handle is connected to one end of the long axial direction of the bristle holder and extends substantially in the same direction as the long axis direction of the bristle holder. Most people are using this shape It is easy to affect the correct brushing direction and posture when using a toothbrush. The user generally holds the traditional toothbrush for brushing as shown in the "Fig. 1", and the brushing direction is to move the bristle holder and the bristles laterally back and forth. This method of brushing can be called lateral brushing. , but this is not the correct direction of brushing. According to the advice of experts or dentists, the correct direction of brushing should be to angle the bristles to the surface of the teeth at 45°. The bristles are placed from top to bottom and from bottom to top on the surface of the teeth. Moving, this method of brushing can be called a longitudinal brushing method, so that the bristles can be inserted into the teeth to smoothly remove residual food and tartar.

Of course, some users can use the traditional toothbrush according to the correct brushing direction. However, due to the shape of the traditional toothbrush handle and the bristle holder, the user must have the arm (including the arm) as shown in "Fig. 1". And the big arm) is lifted to a high position in order to use the traditional toothbrush to perform the brushing action in the correct direction, but this brushing posture is not ergonomic and it is easy to make the arm feel tired.

Because of the above-mentioned problems in the construction of the conventional toothbrush, the present invention proposes an angle-adjustable toothbrush that is ergonomic, easy to use, and can facilitate the user to brush the teeth in the correct direction, thereby improving the health of the teeth and the oral cavity. The problem with traditional toothbrushes.

An embodiment of the present invention includes: a bristle portion, a bristle holder, and a grip, the bristle portion is fixed to the bristle holder, and the front end of the grip is rotatably coupled to the bristle holder for adjusting the grip and the bristle holder The relative angle between the two provides an angle-adjustable toothbrush that is ergonomic, easy to use, and helps the user to brush their teeth in the correct direction to improve the health of the teeth and mouth.

In an embodiment of the invention, an angle limiting means is included for limiting the grip The relative angle between the shank and the bristle holder has an angle between the long axial extension of the bristle holder and the axial extension of the grip, and the angle is between 15° and 75°.

In another aspect of the invention, there is provided an angle adjustable toothbrush that can be modified to a right handed or left handed type.

In order to achieve the above object, in an embodiment of the present invention, the front end of the handle is rotatably coupled to the bristle holder to cooperate with the user's conventional arm to rotate the handle to the right-hand or left-handed position user. Alternatively, when the user uses the same conventional arm to brush the teeth from the left side to the right side or from the right side to the left side, the angle θ can be maintained by rotating the same to achieve the convenience of use.

The details of other functions and embodiments of the present invention will be described below in conjunction with the drawings.

L1‧‧‧ long axial extension of the bristle holder

L2‧‧‧ axial extension of the handle

Θ‧‧‧ angle

10‧‧‧Brushing department

20‧‧‧Brushing seat

21‧‧‧ shaft

211‧‧‧ teeth

22‧‧‧Protruding

23‧‧‧ crack

24a‧‧‧First stop

24b‧‧‧second stop

30‧‧‧Handle

31‧‧‧ pivotal department

32‧‧‧Pivot hole

321‧‧‧ cogging

33‧‧‧ annular groove

34‧‧‧stop block

Figure 1 is a schematic view of the use of a conventional toothbrush.

Fig. 2 is a structural view showing an embodiment of the present invention, showing the component combination relationship of the angle adjustable toothbrush.

Fig. 3 is a structural combination diagram of the embodiment of Fig. 2 showing the overall appearance configuration of the angle adjustable toothbrush.

Fig. 4 is a partial sectional structural view of the second figure at the A-A position.

Fig. 5 is a partial sectional structural view of the third figure at the position B-B.

Fig. 6 is a schematic view showing the position of use of the embodiment of Fig. 5, showing the case where the grip is rotated to the first position.

Fig. 7 is a schematic view showing the state of use of the embodiment of Fig. 2, showing the case where the grip is rotated to a different position.

Fig. 8 is a structural view showing an embodiment of the present invention and showing a state in which the grip is rotated between the first position and the second position.

Figure 9 is a schematic view showing the use of the angle adjustable toothbrush of the present invention.

Please refer to the "second to sixth embodiment". The structure of an embodiment of the present invention includes: a bristle portion 10, a bristle holder 20 and a handle 30. The bristle portion 10 is fixed to the bristle holder 20, and the front end of the grip 30 Rotatablely coupled to the bristle holder 20 for adjusting the relative angle between the grip and the bristle holder, thereby providing an ergonomic, easy to use and facilitating brushing of the teeth in the correct direction, thereby improving the teeth The toothbrush can be adjusted from the perspective of oral health.

An embodiment of the front end of the handle 30 is rotatably coupled to the bristle holder 20. As shown in FIG. 2, a rotating shaft 21 is protruded from the back of the bristle holder 20. The front end of the handle 30 has a pivoting portion 31 and a pivoting portion. 31 has a pivoting hole 32 and a rotating shaft 21 coupled together in a coaxial and relatively rotatable relationship, one embodiment of which is provided with an annular projection 22 around the radial direction of the rotating shaft 21, the pivoting hole 32 The inner side wall also has an annular groove 33 (see Fig. 4) which is coupled to the projection 22, wherein the shaft 21 has a slit 23 in the axial direction (see Fig. 6), so that the shaft 21 is divided into a kind The structure similar to the clamp can be slightly deformed toward the center due to the presence of the crack 23 when the shaft 21 is inserted into the pivot hole 32, and can be opened after the protruding portion 22 of the rotating shaft 21 reaches the position of the annular groove 33. In the original state, the projection 22 and the annular groove 33 are coupled at the same time, so that the handle 30 is rotatably coupled to the bristle holder 20 (see "Fig. 5").

In an embodiment of the invention, the radially outer surface of the shaft 21 has a plurality of The tooth portion 211 of the circumferential position is equally divided, and the inner side wall of the pivot hole 32 also has a plurality of slots 321 which can be engaged with the tooth portion 211. When the user rotates the handle 30 relative to the bristle holder 20 to an angular position. By the action of the tooth portion 211 and the tooth groove 321 being engaged with each other, the aforementioned oblique angle relationship can be maintained between the handle 30 and the bristle holder 20; in an embodiment of the invention, the front end of the handle 30 can be Rotatingly connected to the bristle holder 20 to rotate the handle to the right-handed or left-handed position user's needs in conjunction with the user's usual arm, or to provide the user with the same conventional arm, from left to right or from right to left When the tooth is brushed, it is possible to maintain the angle θ as described above by rotating it, which is convenient for use (see "Fig. 7").

On the other hand, in order to achieve ergonomics, ease of use and effort, and to facilitate the user to brush the teeth in the correct direction, there is a between the long axial extension line L1 of the bristle holder 20 and the axial extension line L2 of the handle 30. The angle θ (see "Fig. 8"), and the angle θ is between 15° and 75°, whereby the handle 30 of the toothbrush is connected to the bristle holder 20 at an oblique angle, so that the user is gripping When the grip 30 is used for brushing, the arm can be held in a relaxed position (see "Fig. 9"). In addition to the lateral reciprocating movement of the bristle holder 20 and the bristles 10, the posture of the arm sagging is easier. The user brushes his teeth in the correct direction.

In an embodiment of the invention, an angle limiting means is included for limiting the relative angle between the handle 30 and the bristle holder 20 such that the long axial extension line L1 of the bristle holder 20 and the axial extension of the handle 30 The angle θ between the lines L2 is between 15° and 75°; an embodiment of the angle limiting means has a first stopper 24a and a first portion on the back surface of the bristle holder 20 as shown in FIG. The second stopper 24b is provided with a stopper 34 on the radially outer side of the pivoting portion 31, and the stopper 34 can interfere with the rotating grip 30 and the first stopper 24a and the second stopper 24b. In other words, the angle at which the grip 30 is rotated by the interference of the first stopper 24a and the second stopper 24b with the stopper 34 The range is limited to the aforementioned range of the angle θ. When the user is holding the handle 30 for brushing, the arm can be kept in a relaxed position in a relatively relaxed posture, except that the bristle holder 20 and the bristles 10 can be reciprocated laterally. The posture of the arm drooping makes it easier for the user to brush his teeth in the correct direction. The embodiments of the angle limiting means disclosed above may be replaced by other equivalent configurations, and those skilled in the art will be able to easily understand the technical features and embodiments of the present invention. Change and achieve the same purpose and effect.

While the present invention has been described above by way of example, the present invention is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection is subject to the terms of the claims attached to this specification.

10‧‧‧Brushing department

20‧‧‧Brushing seat

21‧‧‧ shaft

211‧‧‧ teeth

22‧‧‧Protruding

23‧‧‧ crack

30‧‧‧Handle

31‧‧‧ pivotal department

32‧‧‧Pivot hole

321‧‧‧ cogging

33‧‧‧ annular groove

Claims (5)

An angle adjustable toothbrush comprising: a bristle portion, a bristle holder and a grip, the bristle portion being fixed to the bristle holder, the front end of the grip being rotatably coupled to the bristle holder. The angle adjustable toothbrush of claim 1, wherein the back of the bristle holder protrudes from a rotating shaft, the front end of the handle has a pivoting portion, the pivoting portion has a pivoting hole penetrating the shaft and the rotating shaft Coaxially and in a relatively rotatable relationship, the radially outer surface of the shaft has a plurality of teeth, and the inner side wall of the pivot hole has a plurality of slots that are engageable with the tooth. The angle adjustable toothbrush of claim 2, wherein a radial periphery of the rotating shaft is provided with an annular protrusion, and an inner side wall of the pivoting hole has an annular groove coupled to the protruding portion. The shaft has a crack in the axial direction. The angle adjustable toothbrush according to claim 1, comprising an angle limiting means for limiting a relative angle between the handle and the bristle holder, and a long axial extension line of the bristle holder and the The angle between the axial extensions of the handle is between 15° and 75°. The angle adjustable toothbrush of claim 4, wherein the angle limiting means comprises: a first stop member and a second stop member on the back side of the bristle holder, the diameter of the pivot portion Providing a stop block to the outside, the stop block can interfere with the first grip and the second stop with the rotating grip, by the first stop and the second stop The interference of the stop block, and the angular range of rotation of the grip is limited to the range of the included angle.