TOOTHBRUSH WITH REMOVABLE ATTACHMENT

Abstract

A toothbrush is proposed which has a removable attachment comprising a body with a longitudinal slot and, arranged in the longitudinal slot, a removable attachment having clumps of brush bristles fastened therein. The body is in the form of a flat elongated piece and includes two parts: a main part with a central longitudinal opening and a locking part, which is inserted into and is locked in the central longitudinal opening of the main part. The edges of the base of the removable attachment are slanted in the longitudinal direction at an acute angle. Moreover, on the transverse vertical wall of the slot which is outermost from the centre of the toothbrush there is a projection and on the transverse vertical wall of the removable attachment there is a recess which corresponds to the projection of the slot. Furthermore, in the removable attachment there is a longitudinal opening into which the end part of the locking part of the body is inserted.

Claims

1. A toothbrush with a removable nozzle, containing a body with a longitudinal groove, and placed in the longitudinal groove, a removable nozzle with bundles of bristle fibers fixed in it, characterized in that the body is made in the form of a flat elongated body and includes two parts: the main part with a central longitudinal hole and a locking part that enters and is fixed in the central longitudinal hole of the main part, the edges of the base of the removable nozzle are longitudinally beveled, in addition, a protrusion is made on the transverse vertical wall of the groove, which is extreme from the center of the toothbrush, in the central part, and on the transverse vertical wall of the removable nozzle there is made a recess corresponding to the protrusion of the groove, while the removable nozzle has a longitudinal hole into which the end part of the locking part of the body enters.

2. The toothbrush according to claim 1 characterized in that the body is made in the form of a long and narrow parallelepiped with a small height, in which the extreme vertical faces are a semicircle in cross section.

3. The toothbrush according to claim 1, characterized in that above the beveled base of the removable nozzle closest to the center of the toothbrush there is a platform free from bundles of bristle fibers.

4. The toothbrush according to claim 1, characterized in that the edges of the base of the removable nozzle are longitudinally beveled at an acute angle or along a radius.

5. The toothbrush according to claim 1, characterized in that the junction of the main part and the locking part, which is fixed in the main body part, is made beveled at an acute angle.

6. The toothbrush according to claims 1, 4, characterized in that the locking part includes a protrusion, and the main part includes a recess corresponding to the protrusion of the locking part, while in the lock part, closer to the protrusion, a longitudinal groove is made for elastic connection and fixation in each other of said protrusion and said recess.

Description

[0012] The proposed solution is illustrated by the following figures:

[0013] FIG. 1—general left side view of the removable head of the proposed toothbrush;

[0014] FIG. 2—side view of a removable head of a proposed toothbrush;

[0015] FIG. 3—general view on the right of a removable nozzle of the proposed toothbrush;

[0016] FIG. 4—general view of the main body part with a longitudinal groove;

[0017] FIG. 5—end view of the main body part with a longitudinal groove;

[0018] FIG. 6—general view of the locking part of the body;

[0019] FIG. 7—general view of the main and locking parts of the body;

[0020] FIG. 8—general view of the toothbrush assembled.

[0021] The figures show the following positions: [0022] 1—holes for bundles of bristles (bundles of bristles are not shown in the figures); [0023] 2—recess of the removable nozzle, made on the transverse vertical wall; [0024] 3—beveled extreme part of the removable nozzle base; [0025] 4—longitudinal hole of the removable nozzle, made on the transverse vertical wall closest to the center of the toothbrush; [0026] 5—protrusion made on the transverse vertical wall of the groove, extreme from the center of the toothbrush; [0027] 6—central longitudinal hole of the body main part; [0028] 7—end part of the body locking part, which is included in the longitudinal hole of the removable nozzle; [0029] 8—longitudinal slot of the body locking part; [0030] 9—protrusion of the locking part; [0031] 10—recess of the main part, corresponding to the protrusion of the locking part.

[0032] The essence of the proposed toothbrush.

[0033] The proposed toothbrush with a removable nozzle contains: a toothbrush body consisting of the main and locking parts, see FIG. 7, made in the form of a flat elongated body, the ends of which in a horizontal section are a semicircle, i.e. in its shape it is a long and narrow parallelepiped with a small height, the extreme small vertical faces of which are a semicircle in cross section. In addition, in one end part of the toothbrush body, a closed longitudinal slot is made, see FIG. 4, in its shape repeating the toothbrush body of much shorter length, i.e. this is a rectangular groove, the extreme small sides of which are semicircles—a key slot. In principle, the groove itself can be of a different shape, for example, just rectangular. In the above groove, on its transverse vertical wall closest to the brush, in the central part, a protrusion 5 is made. This protrusion 5 serves to hold the removable nozzle, see FIG. 1-3, installed in a closed longitudinal groove and corresponds to recess 2, made on the transverse vertical (end) wall of the removable nozzle.

[0034] The removable nozzle is shown in FIG. 1-3, and is a body, the lower part of which corresponds in its shape to a closed longitudinal groove (key slot) of the toothbrush body, wherein it is actually inserted, i.e. in fact, this is a parallelepiped with a flat base, wherein the extreme parts 3 are beveled at an acute angle or rounded, and the upper part is bundles of bristle fibers protruding above the toothbrush body (not shown in the figures), which are inserted into the holes 1, and which are fixed in a removable nozzle in any known manner. At that, on the transverse vertical (end) wall of the removable nozzle located opposite the wall with a recess 2, a closed hole 4 is made (it may not wherein the end part of the locking part of the body 7 is inserted and fixes a removable nozzle.

[0035] In addition, for quick and convenient removal of the removable nozzle from the toothbrush body (when the locking part of the body 7 is removed), the base of the removable nozzle should be beveled at an acute angle (or along the radius, FIG. 2) from the extreme side of the removable nozzle, closer to the center of the toothbrush body. brushes, and this angle is about 6-12° to the toothbrush base. Above this beveled base 3 should preferably be a flat area, see FIG. 1,3, when pressed, the removable nozzle is removed. For easy extraction of the removable nozzle, the opposite side of the beveled base (closest to the end of the toothbrush body) should also be beveled, see FIG. 2.

[0036] The locking part of the body, see FIG. 6,7, is inserted into the central longitudinal hole 6 of the body main part, see FIG. 4,7, where it is securely fixed. In this case, fixation can be carried out both with a tight fit and with the help of fixation means 8-10. So, for example, as shown in FIG. 7, the junction of the main body part and the locking part is made beveled at an angle and includes a recess 10 on the main body part, and a protrusion 9 in the locking part corresponding to the recess 10. The protrusion 9 enters the recess 10 and is fixed in it when the locking part of the body is inserted into the central longitudinal hole 6 of the main body part. At that, to reduce wear of the protrusion 9 of the locking part, a longitudinal groove 8 is made in it, due to which the walls of the locking part are bent inward and the protrusion 9 easily enters the recess 10 of the main part.

[0037] The body of the toothbrush can be molded from hard antibacterial plastic, and the removable head—from flexible antibacterial plastic, or vice versa.

[0038] The proposed nozzle is removed in the following way. The user removes the locking part of the body from the main part, as a result of which the protrusion 9 goes inside the locking part of the body formed by the slot 8 and exits the recess 10 of the main part. Then the user presses his/her finger on the platform, due to which the beveled side 3 of the nozzle moves to the base of the groove of the main part of the toothbrush body. After that, the user only needs to remove the nozzle from the protrusion 5 of the main part of the toothbrush body and remove it. The removable head to the toothbrush body is attached in the reverse order: [0039] the user aligns the end recess of the removable nozzle 2 with the protrusion 5, made in the transverse vertical wall closest to the edge of the brush, in the central part, and [0040] inserts the nozzle into the longitudinal groove of the body (more precisely, into the longitudinal groove of the body main part), [0041] then takes the locking part of the body and inserts it into the longitudinal hole of the main part of the body 6, in which the nozzle is fixed, by entering the end part of the body locking part 7 into the longitudinal hole of the removable nozzle 4, and the locking part of the body is fixed in the main part by means of the entry of the protrusion 9 inside the locking part of the body formed by the slot 8 and further straightening of the locking part when the protrusion 9 enters the recess 10 of the main part.

[0042] The proposed toothbrush is reliable and easy to use. Thanks to the replaceable heads, this toothbrush lasts longer. Also, the user can use nozzles with bristles of different rigidity and different shapes. An important factor is that this technology can significantly reduce the level of consumed plastic, since not the entire product is recycled, but only replaceable nozzle.