ROTARY HEAD TOOTHBRUSH

Abstract

A toothbrush having a handle and a head provided with bristles. The head is mounted pivotably with respect to the handle, and the handle has at one end two arms projecting along a longitudinal axis of the handle and defining a space. The head is pivotably mounted in the space defined by the arms.

Claims

1. Toothbrush comprising a handle and a head provided with bristles, said head being mounted pivotably with respect to the handle, the handle comprises at one end two arms projecting along a longitudinal axis of the handle and defining a space, the head being mounted pivotably in the space defined by the arms, along an axis perpendicular to the arms and passing through the arms the handle comprises a button integral with a rigid rod extending inside the handle up to one end thereof, the button comprising two positions, namely a blocked position in which the rod extends projecting into the space defined by the arms along a longitudinal axis, the rod being partially inserted into a notch made on a front face of the base, and an unblocked position in which the rod is retracted and does not extend into the space defined by the arms; in the unblocked position the head is free to pivot.

2. Toothbrush according to claim 1, wherein the head is provided with a base comprising a hole passing therethrough.

3. Toothbrush according to claim 2, wherein each arm comprises a perforation.

4. Toothbrush according to claim 3, wherein the head is mounted pivotably on the arms by means of a pin inserted through one of the two perforations, said pin passing through the base and entering the other perforation.

5. Toothbrush according to claim 3 wherein a distance corresponding to the distance separating a front face of the base and the center of the perforations is less than a distance separating an internal wall of the handle and the center of the perforations.

6. Toothbrush according claim 5 wherein distance corresponding to the distance separating a rear face of the base and the center of the perforations is less than a distance separating an internal wall of the handle and the center of the perforations.

Description

[0021] Other characteristics and advantages of the invention will be seen more clearly and specifically from the following description of embodiments, which is provided with reference to the appended drawings in which:

[0022] FIG. 1 is a view in perspective of a toothbrush;

[0023] FIG. 2 is a close up view in perspective of the toothbrush of FIG. 1, with a detailed view in inset;

[0024] FIG. 3 is a view in perspective showing the toothbrush according to a particular use with a detailed view in an inset;

[0025] FIG. 4 is a view in perspective representing the operation of the toothbrush of the preceding figures;

[0026] FIG. 5 is an exploded view of the toothbrush;

[0027] FIG. 6 is a view in perspective of the use of the toothbrush;

[0028] FIG. 7 is a view in perspective of another use of the toothbrush;

[0029] FIG. 8 is a view in perspective of another use of the toothbrush.

[0030] Represented in FIG. 1 is a toothbrush 1 comprising a handle 2 on which is mounted, at one end 3, a head 4.

[0031] The end 3 is represented in greater detail in FIG. 4. The end 3 comprises two arms 5 projecting along a longitudinal axis 6 of the handle 2. The arms 5 define a space 7 between them. Each arm 5 comprises a perforation 8. The perforations 8 face each other.

[0032] The head 4 is substantially rectangular in shape. Said head is provided with a base 9 on which tufts 10 bristles are attached. The tufts 10 are intended to come into contact with the teeth 11 and oral mucosa 12 of a user.

[0033] The base 9 comprises a hole 13 passing therethrough. The hole 13 is of circular cross-section. The base 9 also comprises a notch 14 situated on a front face 15.

[0034] The head 4 is mounted on the handle 2 by positioning it in the space 7 in such a way that the hole 13 is facing the perforations 8. A pin 18 is then inserted through one of the two perforations 8 and through the base 9 until it enters the other perforation 8.

[0035] The head 4 is then mounted pivotably with respect to the handle 2. Said head can pivot 360, and can therefore make one complete turn. In order for the head 4 to be able to pivot, it is necessary that a distance d1 and a distance d2 corresponding respectively to the distance between the front face 15 and the center (not shown) of the perforations 8 and the distance between a rear face 16 and the center of the perforations 8 is less than a distance d3 separating an internal wall 17 of the handle 2 and the center of the perforations 8.

[0036] The handle 2 comprises a button 19 integral with a rigid rod 20. The rod 20 extends inside the handle 2 from the button 19 up to the end 3. The rod 20 is moved in accordance with the movement of the button 19. The button 19 comprises two positions, a blocked position in which the rod 20 extends projecting into the space 7 along the longitudinal axis 6 of the handle 2 and an unblocked position in which the rod 20 is retracted and does not extend into the space 7. The kinetics of movement of the button 19 are represented in FIG. 4.

[0037] The button 19 and the rod 20 enable the rotation of the head 4 to be blocked. To that end, the head 4 is positioned in such a way that the notch 14 situated on the base 9 is facing the rod 20, then the button 19 is moved according to the arrow 21. The rod 20 then enters the notch 14, thus blocking the rotation of the head.

[0038] Such a toothbrush 1 can then be used both when the head 4 is blocked as well as when it is free to pivot. When the head 4 is free to pivot, the user can easily clean the palatal and lingual faces of the teeth as shown in FIG. 6. The toothbrush 1 can then be adapted to the morphology of the user, as a result of the pivoting of the head 4 with respect to the handle, as represented in FIG. 8.

[0039] In a second embodiment, the rotation of the head 4 has a slight resistance. In other words, the user must apply a certain force in order to pivot the head 4 around a pin 18.