JP2019181085A - Electric file for sandpaper and electric file with sandpaper - Google Patents

Abstract

To provide an electric file improving working efficiency, saving a time, and reducing an adjustment cost by reducing operation of polishing adjustment when producing a complete denture that is performed by disengaging the occlusion of upper/lower dentures.SOLUTION: An electric file 1 for sandpaper comprises: a handle 10; a voice coil motor housed in the handle 10 and electrically reciprocating; and reverse action forceps 2, a clamping device for clamping sandpaper Y, detachably attached to an output extraction part 11 of the voice coil motor. When the voice coil motor is turned on, with a surface of a file part of the sandpaper Y oriented toward a premature contact part intended to be polished, the sandpaper Y vibrates from side to side to polish the premature contact part of the denture.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric cutting tool suitable for adjustment of dentures such as full dentures in a dental laboratory or dental clinic.

  Since it is not easy to solve the problem that dentures do not fit, efforts have been made day and night to make the dentures fit the patient as long as possible, both at the dental laboratory and at the dental clinic.

Utility Model Registration No. 3160492 (afterwards)

  For example, all the dentures are attached, and sanding is performed to adjust the polishing until there is no early contact portion. Since the polishing adjustment at this time is performed by unclutching the upper and lower dentures, if this movement can be reduced, work efficiency should be improved, time saving and adjustment cost should be reduced. is there. This invention makes it a subject to solve such a problem.

  The present inventor thought that the “dental file” in Utility Model Registration No. 3160492, which was devised by the present inventor, would lead to the solution of the problem. This "Dental file" of utility model registration No. 3160492 allows the early contact part to be polished and adjusted in the same way as diagnosing the early contact part of bite in the treatment of teeth in the mouth. It was a practical idea. In other words, it was an excellent idea in that it had been necessary to repeatedly perform inspection and grinding adjustment with a dental occlusion inspection sheet until then, and that the above adjustment work could be easily performed. I can do it.

  Therefore, the above-mentioned problem is a file comprising a handle, an electric reciprocating motion generating device housed in the handle, and a holding tool for holding a file paper provided at an output take-out portion of the electric reciprocating interlock generating device. This is accomplished by providing an electric file for paper. The above-mentioned dental file is included in this file.

  The “dental file” of Utility Model Registration No. 3160492 is composed of a sheet having a filed surface on one side for trimming adjustment of the early contact portion of the bite. As this sheet, a plastic sheet, a laminated paper, or a metal foil laminated with a plastic film is used. A file surface is formed by attaching grindable powder such as ceramic powder or alumina powder to one side of such a sheet. This configuration is helpful enough.

  Now, as to its usage, the electric reciprocating motion generation device may be turned on by sandwiching a paper sheet in a holding tool in the output extraction portion of the electric reciprocating motion generation device. In the manufacturing process of dentures such as complete dentures and the process of adapting to the patient, the file paper is bitten by the upper and lower dentures or inserted into the upper and lower dentures. Thereby, the polishing adjustment of the early contact portion can be performed while the upper and lower dentures are engaged. If the holding tool is provided so as to be detachable with respect to the output extraction portion, the work of attaching the file paper to the holding tool becomes easy. When the electric reciprocating motion generating device is turned on, the file paper is located between the teeth and reciprocates so that the early contact portion is polished.

  Next, there are various types of electrical reciprocating motion generators. In particular, they comprise a yoke that constitutes a magnetic circuit, and a moving coil that constitutes the magnetic circuit and is provided so as to be able to reciprocate relative to the yoke. The moving coil can be configured as the output extraction portion. A so-called voice coil motor is applied to the electrical reciprocating motion generator. The reciprocating motion generating device using the voice coil motor has an advantage that a relatively large output can be easily obtained.

  Next, the electric reciprocating motion generating device can be formed by bringing a cam provided on the rotating shaft of the electric motor into contact with the output extraction portion. Such a reciprocating motion generating device using a cam or a crank has an advantage that the structure is relatively simple and the cost is low.

  According to the electric file for the sandpaper of the present invention and the electric file with the sandpaper, the polishing adjustment can be performed without releasing the bite of the upper and lower dentures in the manufacturing process of the dentures such as the complete denture. As a result, it is possible to improve the work efficiency, save the work time, and reduce the production cost.

2 is an explanatory diagram of Embodiment 1. FIG. FIG. 3 is an explanatory diagram of a voice coil motor 30 according to the first embodiment. It is explanatory drawing which represented the electric circuit of Example 1 with the block diagram. 3 is an explanatory diagram of a file Y used in Example 1. FIG. FIG. 6 is an explanatory diagram of Example 2. It is explanatory drawing of the clamping tool 5 of Example 2. FIG.

  Hereinafter, two examples of the present invention will be described with reference to FIGS. 1 to 6, but the present invention is not limited to these examples.

  The electric file 1 of this embodiment shown in FIGS. 1 to 3 is used with the file Y shown in FIG. The file Y is formed by adhering an abrasive material of alumina zirconia powder on one side of a thin sheet-like material i made of steel by a two-layer coating with a glue of glue and forming a file portion y.

  A drive circuit 3 including a moving coil 35, a control circuit 36, and a secondary battery 37 shown in FIG. The power switch 38 of the control circuit 36 is located under the switch cover 14 provided on the surface of the handle 10, and the LED (Light Emitting Diode) 39 is located under the indicator window 15 provided on the surface of the handle 10. . A charging terminal 300 is provided at the rear end of the handle 10, and is wired from here to the control circuit 36 so that external power during charging is supplied. An opening 16 is provided at the front end of the handle 10, and the output extraction portion 11 of the voice coil motor 30 having the moving coil 35 as a constituent element is taken out of the handle 10.

  The voice coil motor 30 is configured as shown in FIG. That is, the outer yoke 32 is connected so as to open a space around the cylindrical inner yoke 31, and the magnet 33 is attached so as to follow the inner side of the outer yoke 32. A coil bobbin 34 around which a moving coil 35 is wound is inserted between the magnet 33 and the inner yoke 31 so as to open a space between them. Accordingly, the coil bobbin 34 can reciprocate with respect to the inner yoke 31. In this way, the magnetic circuit is configured.

  When the charging terminal 300 is connected to the power source, the control circuit 36 of the drive circuit 3 charges the secondary battery 37 while performing charge management. When the power switch 38 is pressed from the OFF state, the control circuit 36 supplies a vibration current to the moving coil 35. If the power switch 38 is pressed for the second time, the frequency is increased and the power switch 38 is increased for the third time. It is set so as to perform control to turn off when is pressed.

  A forceps attachment opening 13 for attaching a joint 22 between the right piece 20 and the left piece 21 of the reverse operation forceps 2 is opened at the distal end portion of the output extraction portion 11 and the chuck 12 is screwed. . The reverse operation forceps 2 is detachable from the forceps mounting opening 13. The reverse forceps 2 has a structure in which the right piece 20 and the left piece 21 intersect at the center, and when the right piece 20 and the left piece 21 in a portion close to the joint portion 22 are pushed so as to be closed, the tip portion is reversed. The left piece 21 and the right piece 20 are configured to open.

  The left piece 21 and the right piece 20 of the reverse action forceps 2 are opened, the file Y is sandwiched between the left piece 21 and the right piece 20, and then the joint portion 22 of the reverse action forceps 2 is attached to the forceps attachment opening 13. And if it fastens with the chuck | zipper 12, it will be in the state which can use the electric file 1 of this Example. The file Y can be used like a bite inspection sheet, but sandwiched between upper and lower teeth. When the switch cover 14 is pressed so that the surface of the file portion y of the file Y is directed to the early contact portion to be ground, it is confirmed from the indicator window 15 that the switch 38 is turned on and the LED 39 is lit, and the voice coil motor 30 is turned on. The reciprocating motion is generated, the file Y vibrates in the direction of the left and right arrows, and the work of grinding and leveling the early contact portion of the denture is performed speedily.

  The file shown in FIG. 4B is formed by forming a file portion y on the surface of a thin sheet-like material p made of synthetic paper and bonding a thin sheet-like material s made of PP (polypropylene) resin on the back surface. Is. According to this structure, since the sheet-like body s of PP resin hits the side of the denture which is not ground, it has the characteristic that the slipperiness with respect to the denture which is not ground becomes favorable. In addition, the structure which uses the sheet-like body which consists of materials with good sliding, such as PP resin, is also possible instead of the sheet-like body p made of synthetic fiber paper.

  In the electric file 4 of this embodiment shown in FIGS. 5 and 6, a plate cam 45 is attached to a rotating shaft 47 of a motor 46, and this plate cam 45 is in contact with a roller 48 described later. On the other hand, a mounting opening 42 is opened at the distal end portion of the vibration-side casing 41, and the reverse operation forceps 5 is mounted thereon. The vibration side casing 41 is provided so as to vibrate in the front-rear direction while being biased in the direction of the plate cam 45 by a spring 44 with respect to the casing 40 as an outer handle. The vibration side casing 41 is provided so as to contact the plate cam 45 with a roller 48 at the rear end thereof. Thus, the electrical reciprocating motion generator is configured.

  The reverse forceps 5 used in this embodiment is a metal thin plate processed into an M-shape, and each of the M-shaped triangles has a rounded curved shape, and two M-shaped pieces ( The right piece 50 and the left piece 51) are combined to form a forceps clamping portion. When the reverse action forceps 5 is stored in the mounting opening 42 of the vibration side casing 41, the three curved curved portions are hooked on the fixing pillars 43 standing at three positions in the mounting opening 42 and fixed. It has become so. The mounting opening 42 is covered with a lid (not shown) after the reverse-operation forceps 5 is mounted. In addition, when the right piece 50 and the left piece 51 are clamped between the M piece-shaped right piece 50 and the left piece 51, the right piece 50 and the left piece 51 do not come off the file Y by being bitten. A plurality of protrusions 52 are provided.

  When the plate cam 45 of the motor 46 rotates, the roller 48 in contact with the plate cam 45 is pushed by the plate cam 45 or pulled by the spring 44 when not pushed, so that the vibration side housing provided with the roller 48 is provided. 41 is caused to reciprocate. Therefore, the reverse forceps 5 attached to the vibration side housing 41 performs reciprocal vibration, and the file Y vibrates in the direction of the left and right arrows, and the work of leveling by grinding the early contact portion of the denture is performed quickly. It will be.

  The electric file of the present invention is very effective in adjusting the polishing of dentures such as dentures, but it is effective for the polishing adjustment that eliminates the early contact part in the treatment of teeth in the patient's mouth. However, it is also useful and is also within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Electric file 10 Handle 11 Output extraction part 12 Chuck 13 Forceps mounting opening 14 Switch cover 15 Indicator lamp 16 Opening part 2 Reverse action forceps 20 Right piece 21 Left piece 22 Joint part 3 Drive circuit 30 Voice coil motor 31 Inner yoke 32 Outer yoke 33 Magnet 34 Coil bobbin 35 Moving coil 36 Control circuit 37 Secondary battery 38 Power switch 39 LED 300 Charging terminal 4 Electric file 40 Case 41 Vibration side case 42 Mounting port 43 Fixing column 44 Spring 45 Plate cam 46 Motor 47 Rotating shaft 48 Roller 5 Reverse action forceps 50 Right piece 51 Left piece 52 Protrusion

Claims (5)

  An electric file for sandpaper comprising a handle, an electric reciprocating motion generating device housed in the handle, and a clamping tool for sandwiching a paper sheet provided at an output take-out portion of the electric reciprocating motion generating device.   The electric file for sandpaper according to claim 1, wherein the holding tool is detachably provided on the output extraction portion.   The electric reciprocating motion generating device comprises a yoke constituting a magnetic circuit and a moving coil constituting a magnetic circuit provided so as to be able to reciprocate with respect to the yoke, and this moving coil is output as the output The electric file for sandpaper according to claim 1, which is configured as a take-out portion.   2. The electric file for a sandpaper according to claim 1, wherein the electric reciprocating motion generating device is formed by bringing a cam provided on a rotating shaft of an electric motor into contact with the output extraction portion.   5. An electric file with a sandpaper, wherein the electric file according to any one of claims 1 to 4 is made by sandwiching a sandpaper between the holding tools.

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