JPH0713694Y2 - Tooth cleaning tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] In the present invention, a holder having a handle is attached to a holder having two legs, and tooth dentures are spread on the legs. It concerns a tooth cleaning tool.

[Prior art and problems] It consists of a handle and a hoop attached to it.
A tooth cleaning device in which cotton thread for filamentous teeth is spread between the legs of the hoop is known (Swiss Patent No. 521,751). In this device, the handle is arranged parallel or at right angles to the running path of the cotton thread for the filamentous tooth.

[Objectives and Effects of the Invention] An object of the present invention is to provide a tooth cleaning tool of the type described above that is stable and easy to operate without complicating the structure of the apparatus and thus increasing the manufacturing cost.

This object is achieved by the features of claim 1.
Preferred variants of the first embodiment, which are the subject of the present invention, are presented in subclaims 2 to 5.

[Outline of the device] Special design of the tooth cleaning device according to the present invention, especially the slanted arrangement of the handle with respect to the tooth cotton, the special design of the flat grip,
Coplanar placement of the flat grip and the cotton dentition greatly improves operation in molar spaces that are very inaccessible. Guidance of the tooth cleaning device becomes easy. Furthermore, since the tooth cleaning device of the present invention is very stable in structure, a more delicate cleaning operation is possible.

Dental cleaners are known, which have a holder with two legs and a handle for receiving at least one filamentous cotton thread. The holder can be screwed onto the upper end of the handle, for example. When the tooth cleaning tool is assembled, the lower end of the holder and the upper end of the handle form a V-shaped groove, and this groove forms a holding and connecting member at one end of the tooth cotton. The handle is hollow and contains a roll of tooth cotton, one end of which is pulled out through an opening in the handle. The extracted toothbrush is guided over two pins provided on the legs of the holder and then placed in the V-shaped groove between the holder and the upper end of the handle. By rotating the holder with respect to the handle, the width of this groove is narrowed, and the end of the tooth cotton is strongly gripped (US Pat. No. 3,949,769).

It is therefore an additional object of the present invention to provide a simple, inexpensive and improved improved device for guiding and fixing tooth cotton in order to ensure that the tooth cotton is stretched and held securely in tension. To do.

By disposing the winding plate outside the handle, the tooth cotton is guided inside the handle and completely covered in the vicinity of the handle.
Does not come into contact with or interfere with tooth cotton. In this case, the winding plate preferably forms one side surface of the handle and is connected to the opposite side surface of the handle parallel to the winding plate by a rib. Therefore, these ribs are used to wind the denture cotton. Since the flat side surface of the take-up plate and the flat side surface of the holder are approximately in the same plane, guiding of the tooth cotton to the holder is achieved without bending. Also, the ribs are arranged laterally with respect to the longitudinal axis of the handle and the winding plate extends laterally above the ribs, so that the tooth cotton is completely covered.

During manufacture of the device, one end (feeding end) of the tooth cotton is fixed in a clamping device provided at any point on the handle. Next, the supplied tooth cotton is wound into the handle container. A cutting plate is provided after the clamping device, which is arranged flush with the take-up plate, so that it can be easily cut after guiding the tooth cotton on the leg during use of the device. Covered by a slab. In this way, the ends of the toothbrush are easily cut. The two legs of the holder can be arranged so as to extend relative to one another, resulting in a considerably long working length of the dental cotton wool. By bending the leg with the clamping slot, for example, 90 ° with respect to the handle, the tooth cotton can be bent strongly on this leg. This produces a positive tightening action.

Other preferred embodiments are described in the subclaims.

BACKGROUND OF THE INVENTION Tooth cleaning devices are known, which consist of a shaft with attached hoops and are configured such that the tooth cotton is spread between the legs of the hoop. (DE-A1 35 16 544). The legs of the hoop are designed so that the dental cotton slabs are crossed by bending in a tension-free area between the legs. Both sides of the tooth are cleaned when the toothbrush is inserted between the teeth. Since the intersection of the tooth cotton is approximately halfway between the two legs of the hoop, only the right or left half of the tooth cotton is used for cleaning. Furthermore, the device known from DE-C2 29 23 057 comprises a hoop-shaped resilient frame and a plurality of tooth cots arranged parallel to one another in one plane.

In another preferred embodiment of the invention, a method is proposed which comprises a plurality of tooth swathes in order to guide the tooth cleaning device particularly effectively and to clean the tooth gap efficiently and rapidly.

By using two tooth cots mounted parallel to each other in front and back, the tooth cleaning effect is significantly improved.
This is because the action of the tooth cotton on the tooth surface becomes strong and occurs in several steps. This is achieved in particular by arranging the two tooth swatches in the same plane and front and back in a direction parallel to the longitudinal sides of the legs of the holder. This helps guide the tooth cleaner along the tooth surface.

A known tooth cleaning device (U.S. Pat. No. 3,949,769), which further comprises a handle and a holder connected to this handle for receiving dental cotton, consists of two legs running parallel to one another, these legs being the handle. About the longitudinal axis of
It is bent 40 °. The holder has a threaded portion on one side thereof which is screwed into the upper end of the threaded portion of the handle. The handle has a hollow structure and receives a roll of denture cotton, the end of which is pulled through an opening and tightened into the V-shaped groove of the handle. By screwing the holder into the handle, the groove is contracted, so that a clamping action for fixing the end of the tooth cotton is produced.

Furthermore, a device is known which has a denture cotton holder and a handle which are fitted together by means of an open plug connection (US Pat. No. 3,769,396).

Therefore, in another embodiment of the present invention, the holder and the upper end of the handle are designed so that the holder can be easily connected to the handle from a hygienic point of view of the device in use and because of its lower manufacturing cost. It is arranged. This is achieved by a clamp connection between the handle and the holder. As a result, it is possible to easily replace the holder and the tooth cotton expanded therein with a holder having new tooth cotton. The clamp connection only needs to pull the holder out of the handle. The new holder can then be placed at the top of the handle or in the hole at the top. To that end, the clamp connection consists of a plug placed on the holder for insertion into an opening provided in the handle. In this case, the plug consists of at least two resilient pins extending parallel to each other, which pins are mutually compressed when they are slid into the opening of the handle and in their initial position in the opening. I can go back. As a result, a clamp connection is created between the holder and the handle.

It is desirable to have a third pin between these two pins to prevent them from coming too close to each other. Further, it is desirable that these three pins are arranged on the same surface and have a flat shape.

By forming the flat surface of at least one pin into a convex shape or a concave shape, an excellent clamping action can be easily obtained.
In this case, the convex or concave part of the pin is locked in the corresponding part of the handle bore.

Also, placing the ends of the pins on a common arc facilitates insertion of the holder pin into the handle opening.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

[Embodiment] In the accompanying drawings, a tooth cleaning tool indicated by 10 comprises a handle 12 and a holder 14 mounted thereon. The handle is formed in a rectangular cross section, has a width (B) much wider than the thickness (d), and is rounded at its upper end and both edges. Further, in order to facilitate the operation of the handle 12, a plurality of ribs 13 having semicircular cross sections parallel to each other are longitudinally provided on one of the outer flat surfaces thereof. These ribs 13 can be arranged on a part of the handle 12 or on the whole thereof. Preferably, these ribs are raised.

The holder 14 consists of two mutually parallel legs (20, 21) terminating in a rounded end and a rib 22, forming a U-shape as a whole. Close the outer ends of these legs 20, 21 to
6 is strongly stretched, intimately or injection molded.

In order to make the operation of the tooth cleaning device easy and stable, the two legs parallel to each other are attached so as to form an angle with respect to the axis E of the handle 12. The angle α between the central axis H of the legs 20, 21 and the longitudinal axis E of the handle 12 is 45 degrees. However, this angle α can be about 40 degrees to about 50 degrees.

Further, as shown in FIG. 2, the handle 12 is inclined so that the contact point A with the holder 14 is arranged in the leg-rib joint area of the holder 14.

The tooth cleaning tool thickness D can be the same both in the area of the holder 14 and in the area of the handle 12. But,
Handle 12 to save material and make an easy-to-use tooth cleaner
It is desirable to make the thickness d of the handle 12 smaller than the thickness D of the holder 14 so that the handle rib 13 corresponds to the difference D-d between these thicknesses. In addition, an example (Fig. 1,
(As shown in FIGS. 3, 4 and 6), holder
14 is made wider on both sides than handle 12 by the same width.

The thickness of the handle 12 can be uniformly tapered from the contact A on the holder to the free end of the handle.

The U-shaped holder 14 has a T-shaped cross section. This allows the holder
14 is particularly twist resistant. The outer flange portion 15 of T-shaped cross section has an inner rib portion 16 that is half the width thereof, from which the toothbrush 26 is spread.

The free end of the T-section of the holder 14 is rounded at its tapered end.

In FIGS. 7 and 8, the tooth cleaning tool 210 comprises a handle 212 and a holder 214 associated therewith. The handle 212 again has a substantially rectangular cross section and is rounded at its top and side edges. A rib 216 is provided on the flat main surface (similar to the handle rib 13 in FIG. 5) for easy operation.

The holder 214 is composed of two legs 200 and 201, which are semicircular and are integral with the handle 212, respectively.
Two denture pads 2 near the ends 202 and 203 of the legs 200 and 201
6,27 are stuck. As shown in FIG. 7, these two tooth waddings 26, 27 are arranged parallel to the longitudinal direction of the leg in the front-rear direction and in a plane parallel to the longitudinal edge of the leg. .

The legs 200, 201 are laterally curved with respect to the longitudinal edges of the handle 12 to facilitate manipulation of the tooth floss. Two
The angle between the central longitudinal axis H of the legs 200 and 201 of the book and the longitudinal central axis G of the handle 212 is 45 °.

In FIGS. 9 to 12, the tooth cleaning tool 310 has a handle 312.
And a holder 314 appropriately connected thereto. The holder 314 consists of two legs 316, 318 arranged in a semi-circle,
The end portions 317, 319 extend parallel to one another at a distance. The longitudinal axis of the holder 314 and the longitudinal axis of the handle form an angle of about 45 °. But between these axes 40 ° ~
It can also form an angle of 50 °.

As shown in FIGS. 9, 10, and 12, the handle
Ribs 326 are located on the handle to facilitate operation of the 312.

A holder 314 equipped with tooth cotton 26 (or 26 and 27),
The new holder is detachably connected to the handle 312 by the clamp connecting member 320 so that it can be replaced within a short time with a new holder equipped with new tooth cotton. The clamp connecting member 320 has a shape of a plug 322 having two elastic pins 323a and 323b which are parallel to each other,
These pins are pushed into openings 324 provided at the end of the handle. When these pins 323a, 323b are pushed into the opening, they are lightly compressed, but they bounce back to their final position and are strongly locked in the opening 324.

To prevent the two pins from being pressed against each other,
A third pin 323c is provided in parallel between the two pins 323a and 323b.

As shown in FIG. 12, these pins 323a, b, c are all in the same plane. At least one of the flat sides of these pins 323 may be convex to engage the recess in the opening 324. Of course, a recess may be provided on the pin which cooperates with the convex portion in the opening 324 to improve the clamp connection between the holder 134 and the handle 312.

Since the ends of the three pins 323 form an arc, a centering action is generated and the operation of inserting these pins into the opening 323 is facilitated.

To facilitate operation of the tooth cleaning tool 310 of this embodiment, the two legs 316, 318 of the holder 314 are angled at an angle to the longitudinal axis of the handle 312. The angle between the longitudinal axis of the holder 314 and the axis of the handle 312 can be 40 to 50 °. This angle is preferably 45 °.

Of course, the legs 316, 318 of the holder 314 can have a T-shaped cross-section or the like to increase their torsional resistance.

[Brief description of drawings]

FIG. 1 is a plan view of a tooth cleaning device according to the present invention, FIG. 2 is a side view thereof, FIG. 3 is a bottom view (operating surface side), FIG. 4 is a front view, FIG. 5 is a perspective view, and FIG. The figure is a front view seen from the other side,
FIG. 7 is a side view of another embodiment of a tooth cleaning tool having a curved holder and two tooth cottons, FIG. 8 is a front view of the tooth cleaning tool of FIG. 7, and FIG. 9 is the present invention. FIG. 10 is a side view of yet another embodiment of the tooth cleaning tool of FIG. 10, showing a state in which a replaceable holder is assembled, and FIG. 10 is a view showing a state where the holder and the handle of the tooth cleaning tool of FIG. 9 are separated. 11 is a plan view of the tooth cleaning device of FIG. 9, and FIG. 12 is a sectional view taken along line 12-12 of FIG. 10,210,310… Tooth cleaner, 12,212,312… Handle, 14,21
4,314… Holder, 13,216,326… Rib, 20,21,200,201,31
6,318… Holder legs, 15,16… T-shaped cross section, 26,27… Teeth cotton, 320… Clamp, 323… Clamp pin.

Claims (5)

[Scope of utility model registration request] 1. A handle portion, a holder portion, and at least one tooth pad held by said holder portion, said holder portions mutually forming a gap bridged by said tooth pad. Having two legs spaced apart, at least one of said legs being bent at an angle of between about 40 ° and about 50 ° with respect to the longitudinal side of said handle, said handle, holder, holder leg and tooth swathe Are all substantially in a common plane, the holder portion is substantially T-shaped in cross-section, and the outwardly directed flange portion is at least partially curved and about the width of the flange portion. A tooth cleaning tool characterized in that it has a rib portion directed to the inside of a half width. 2. A guide member made of cotton for teeth is arranged at the free end of the first leg, and the cotton for teeth is stretched by the guide member so as to be replaceable, and is strongly tightened in the clamp groove hole of the guide member of the first leg. Further, a tooth swathe accommodating chamber is defined in the handle, and the supply portion of the wound tooth swathe is guided by the guide member of the second leg, and the handle has a handle plate and a winding plate. The tooth cleaning tool according to claim 1, further comprising: a plurality of ribs, the plates being spaced apart from each other and connected to each other to form a winding chamber. 3. The two legs of the holder portion extend substantially parallel to each other, and the central longitudinal axis between the two legs is 40 ° to the longitudinal axis of the handle. The tooth cleaning tool according to claim 1, wherein the tooth cleaning tool forms an angle of 50 °. 4. The tooth cleaning tool according to claim 1, wherein two cotton shavings for teeth are spaced apart from each other and extend in parallel between the legs. 5. The tooth cleaning tool according to claim 1, wherein the holder portion is detachably connected to the handle member by a clamp structure.