JP2000024888A - Hand scaler polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily repair a cut edge without causing overpolishing and to enable even a beginner to finish accurately and constantly. SOLUTION: Required paper grinder 15' is mounted on the upward surface of a grinding paper attachment 15 of a sharpner body 10, and a hand scaler 1 is set to a holder part 20 so that the side face of a blade part 4 on the cut edge 5 side to be the repaired object of the hand scaler 1 abuts the paper grinder 15'. An operating part of the sharpner body 10 is pressed down with a finger. A protruding part of the paper grinder attachment 15 therefore descends inside a guide hole into a lowermost position restricted by a compressing spring, and in association with this, the attachment 15 slides downward on the upward surface of an inclined plate part 13' of a stationary member 11. When pressing-down of the operating part is restricted, the finger is released from the operating part, or finger force is relaxed. The attachment 15 is therefore reset automatically into its initial uppermost position by the restoring force of the spring. The cut edge is repaired by repeating this process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand scaler polishing apparatus, and more particularly, to an apparatus for repairing (sharpening) a cut edge of a manual scaler (curette) used for removing tartar, plaque and the like.

[0002]

2. Description of the Related Art A hand scaler 1 (see FIG. 1 and the like) is widely used as an instrument for removing tartar and the like, and a portion of the scaler 1 is, as shown in FIGS. Are divided into a grip portion 2 which is gripped by the user, a shank portion 3 generally provided at both ends of the grip portion 2, and a blade portion 4 continuously provided at the tip of each shank portion 3. Cut edge
5 is substantially eliminated. In addition, if the sharpness of the cutting edge 5 is lost due to use, the cutting edge 5 does not bite into the tartar and the like, and not only does the removal efficiency decrease, but also the surgeon applies extra force to damage the scaler, Alternatively, there is a risk of damaging the patient's gums and the like, so it is necessary to appropriately repair the cutting edge using a grindstone.

Conventional cutting edge repair methods are broadly classified into (a) a manual method in which a grindstone is manually moved, and (b) an electric method in which a grindstone is rotated or moved up and down by a motor or the like.

[0004]

However, in the case of the above (a), the polishing operation is troublesome. In the case of the above (b), the wear of the blade portion is accelerated due to excessive polishing, or excessive frictional heat causes There is a problem that the properties of the blade portion are adversely affected, or the electric polishing apparatus is expensive. Further, in both of the above (a) and (b), there is an individual difference in the finish, and it is not such that a beginner can accurately and uniformly finish.

The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to easily perform incision repair without excessive polishing, and even beginners can accurately repair the incision. Another object of the present invention is to provide a hand scaler polishing apparatus capable of performing a constant finish.

[0006]

A hand scaler polishing apparatus (main polishing apparatus) according to the present invention is a hand scaler polishing apparatus including a polishing apparatus main body, wherein the polishing apparatus main body has a horizontal portion and an inclined portion. A stationary member, a movable member provided on the stationary member so as to be vertically movable along an upward portion of the inclined portion, a grindstone mounted on the upward portion of the movable member, and a guide portion for guiding the vertical movement of the movable member. And an operation unit for manually moving the movable member downward, and an elastic member for automatically returning the movable member that has moved downward upward.

That is, the present polishing apparatus includes at least a polishing apparatus main body. In this polishing apparatus main body, the hand scaler is preferably fixed by hand scaler fixing means described later, or the polishing operator grasps and attaches the hand scaler to the movable member. After making the side surface (see FIG. 9) of the blade portion on the incision side to be repaired contact with the grindstone as required, the operating member is depressed with a finger, so that the movable member is guided by the guide portion and the stationary member is inclined. When the movable member is lowered to the lowest position, the finger is released from the operation unit or the force of the finger is released, and the movable member is moved to the initial position by the restoring force of the elastic member. It is possible to return to the upper position, and by repeating this operation, the grindstone is continuously moved up and down, thereby easily repairing the cutting edge of the scaler It can be.

It is desirable that the inclination angle (the inclination angle of the grindstone) of the inclined portion (upward portion) with respect to the horizontal portion of the stationary member corresponds to the angle formed between the inner surface and the side surface of the blade portion of the hand scaler. About 60-80
° (the acute angle side).

A spring can be preferably used as the elastic member, and a paper grindstone can be preferably used as the grindstone.

According to the present invention, the stationary member can adjust the inclination angle of the inclined portion with respect to the horizontal portion. Thereby, the inclination angle of the grindstone can be finely adjusted as required to correspond to the angle between the inner surface and the side surface of the blade portion.

According to the present invention, there may be provided a scaler fixing means for fixing the hand scaler. As the scaler fixing means, a clamp or other known means can be used.

According to the present invention, it is possible to provide a main body rotating means for horizontally reciprocating the polishing apparatus main body around a predetermined reference point. Thus, by manually reciprocating the grindstone horizontally and horizontally with the main body of the polishing apparatus, the present polishing apparatus is used for repairing the R shape (roundness) of the toe portion 6 (see FIG. 8) at the tip of the blade portion. Can be. It is preferable that the distance (rotation radius) of the polishing apparatus main body from the reference point be designed to be adjustable and correspond to the R shape.

[0013]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a hand scaler polishing apparatus 10 according to the present invention in which a hand scaler 1 is set.
FIG. 1 is a perspective view of the polishing apparatus 100. The polishing apparatus 100 includes a sharpener main body 10 as a polishing apparatus main body for performing polishing restoration of the scaler 1, and a holder 20 as scaler fixing means for fixing the scaler 1. The knurl body 10 is fixed on a circular base plate 30 by a suitable well-known means, and the holder unit 20 is installed above the sharpener body 10 via an arm 28 erected on the base plate 30.

2 and 3 are a side view and a rear view, respectively, of the sharpener body 10. The sharpener body 10 includes a stationary member 11 composed of a horizontal plate 12 and a bent plate 13, and an inclined plate portion of the bent plate 13. 13 'has a rectangular plate-shaped whetstone attachment 15 as a movable member. The bent plate 13 is a horizontal plate portion 13 "forming a constant angle of about 100 ° to 120 °.
And the inclined plate portion 13 ′. The horizontal plate portion 13 ″ is integrally superimposed on the front half of the horizontal plate 12, and
2 together with a horizontal portion (in claim 1), and the inclined plate portion 13 'is about 60 ° to 80 ° with the rear half of the horizontal plate 12.
Project upward at an angle.

The grindstone attachment 15 is provided with a vertically long rectangular parallelepiped convex portion 16 protruding rearward from a downward surface (rear surface), while the inclined plate portion 13 'of the stationary member 11 receives the convex portion 16 and moves vertically. Rectangular guide hole 14 as a guide portion allowing only movement
Is drilled. A coil spring 17 as an elastic member that always urges the convex portion 16 upward and is positioned at the uppermost position in the hole 14 is housed below the guide hole 14. In addition, the convex portion 16 has a plate-like operation portion 1 from the downward surface of the inclined plate portion 13 ″.
8 is screwed by a countersunk screw 19, and the operation unit 1
8 attaches the attachment 15 to the stationary member 11.
And become one.

As shown in FIG. 4, the holder section 20 includes a connecting section 21 which is connected to the arm 28 by connecting the connecting piece 22 by screws or the like, and a clamp section for fixing the handle section 2 of the hand scaler 1. 23. The clamp portion 23 is rotatably fixed to one of the left and right sides (the left side in the figure) of the support portion 24 in which the concave portion 24 ′ for receiving the handle portion 2 is set at the center. ′, An L-shaped tightening piece 25, a screw rod 26 rotatably fixed to the other of the support parts 24, and a wing nut 27 screwed to the screw rod 26.

In fixing the hand scaler 1 to the holder section 20, the handle section 2 of the scaler 1 is applied to the concave portion 24 'of the support section 24, the fastening piece 25 is rotated to press the handle section 2, and then the screw After rotating the rod 26 and inserting it into the slit 25 ′ of the fastening piece 25,
By tightening with the wing nut 27, the handle portion 2 is securely clamped. Thus, the scaler 1 is fixed substantially vertically, but the angle of the scaler 1 with respect to the vertical can be finely adjusted by rotating the clamp portion 23 with respect to the connecting portion 21 if desired. Angle scale is attached.

In using the above-mentioned scaler polishing apparatus 100, the base plate 30 is mounted and fixed on an appropriate work table through the mounting hole 33, and the required paper grindstone 15 'is attached to the upward surface of the grindstone attachment 15 with an adhesive. The cutting edge 5 to be repaired by the hand scaler 1
The scaler 1 is set on the holder unit 20 so that the side surface (FIG. 9) of the blade part 4 on the side contacts the grinding stone 15 ′ substantially parallel above the grinding stone 15 ′ (see FIG. 1).

Next, the operation unit 1 of the sharpener body 10
8 is pressed down with a finger against the bias of the coil spring 17. As a result, the convex portion 16 of the whetstone attachment 15 descends in the guide hole 14 to the lowermost position limited by the spring 17 to be compressed. Slide down. When the depression of the operation unit 16 is restricted, the attachment 1 is released by releasing the finger from the operation unit 16 or removing the force.
5 automatically returns to the initial top position. By such an operation, the grindstone 15 'moves up and down, and by repeating this, the cutting edge can be easily repaired.

FIG. 5 is a perspective view showing another embodiment of the hand scaler polishing apparatus (100 ') according to the present invention, and portions common to the polishing apparatus 100 are denoted by the same reference numerals. The polishing apparatus 100 'is different from the polishing apparatus 100 in that a turning plate 31 as a main body turning means is interposed between a base plate 30 and a sharpener main body 10. The turning plate 31 is centered on a reference pin 32. The shaft is manually stopped on the base plate 30 so as to be able to reciprocate horizontally horizontally. The horizontal reciprocating rotation of the rotation plate 31 is performed by the toe 6 at the tip of the blade 4 of the scaler 1.
(See FIG. 8). In this case, after the toe 6 is brought into contact with the paper grindstone 15 'so as to be substantially perpendicular thereto, the rotating plate 31 is moved right and left on the base plate 30. The whetstone 15 'is moved up and down from the operation unit 18 while being shaken as described above.

The reference pin 32 of the paper grindstone 15 '
In order to adjust the distance (rotation radius of the grindstone 15 ′) from the reference pin 32 in the longitudinal direction of the rotation plate 31, the sharpener main body 10 A scale indicating the turning radius of the grindstone 15 ′ is provided on the turning plate 31 by using a well-known means so as to be fixed at a desired position. In the case where the radius of the toe portion 6 is small, the rotating plate 31 is kept with the sharpener body 10 installed.
The other hole 33 of the base plate 30
(Refer to FIG. 1), it can be set up with the reference pin 32 and the hand scaler 1 can be reversed and fixed.

FIG. 6 shows another embodiment of the sharpener body (60).
3 ′ is designed as a horizontal portion so that the inclination angle can be adjusted with respect to the axle stop 63 ″. As a mode of such a design, for example, a shaft member passed through a cylindrical portion 64 provided below the inclined plate portion 63 ′ is provided. (Not shown) are supported by the shaft stopper 65 of the shaft stopper 63 ″, and a spring concentric with the shaft member is compressed and disposed between the shaft stoppers 65, thereby forming the inclined plate 63 ′. And the like that prevent free rotation.

[0024]

As described above, in the hand scaler polishing apparatus according to the present invention, after the side surface of the blade portion on the cutting edge side to be repaired is brought into contact with the grindstone mounted on the movable member as required, the operation section By pressing down with a finger, the movable member is moved downward along the upward portion of the inclined portion of the stationary member while being guided by the guide portion, and when the movable member descends to the lowest position, release the finger from the operation portion or By removing the force of the finger, the movable member can be returned to the initial uppermost position by the restoring force of the elastic member, and by repeating this operation, the grindstone can be continuously moved up and down along a certain slope The repair of the cutting edge of the scaler can be easily performed. Therefore, unlike the electric type, the polishing does not occur excessively, and the polishing work is easier than that in which the grindstone is moved by hand, so that even a beginner can finish accurately and uniformly.

Further, by making the stationary member capable of adjusting the inclination angle of the inclined portion with respect to the horizontal portion, the inclination angle of the grindstone can be finely adjusted so as to correspond to the angle formed between the inner surface and the side surface of the blade portion of the scaler. can do. Furthermore,
If the scaler fixing means is provided, the polishing operation is further facilitated. Further, by providing a main body rotating means for horizontally reciprocatingly rotating the polishing apparatus main body around a predetermined reference point, the present polishing apparatus can be used as a blade unit. It can also be used to repair the tip of the toe.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a hand scaler polishing apparatus according to the present invention.

FIG. 2 is a side view showing a polishing apparatus main body.

FIG. 3 is a rear view showing the polishing apparatus main body as seen through a part (operation unit).

FIG. 4 is a perspective view showing a holder unit.

FIG. 5 is a perspective view showing another embodiment of the hand scaler polishing apparatus according to the present invention.

FIG. 6 is a perspective view showing another embodiment of the polishing apparatus main body.

FIG. 7 is a cutaway view showing a shank portion and a blade portion of the hand scaler.

FIG. 8 is an enlarged perspective view showing a blade portion.

FIG. 9 is a sectional view showing a blade unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hand scaler 2 Grip part 3 Shank part 4 Blade part 5 Cutting edge 100,100 'Hand scaler polishing device 10,60 Sharpener main body 11 Stationary member 12 Horizontal plate 13 Bending plate 13' Inclined plate 13 'Horizontal plate 14 Guide Hole 15 Whetstone attachment 15 'Whetstone paper 16 Convex part 17 Coil spring 18 Operation part 19 Countersunk screw 20 Holder part 21 Connection part 22 Connection piece 23 Clamp part 24 Support part 24' Depression 25 Tightening piece 25 'Slit 26 Screw rod 27 Wing nut 28 Arm 30 Base plate 31 Rotating plate 32 Reference pin

Claims (4)

[Claims] 1. A hand scaler polishing apparatus including a polishing apparatus main body, wherein the polishing apparatus main body includes a stationary member having a horizontal portion and an inclined portion; A movable member movably provided, a grindstone mounted on the upwardly directed portion of the movable member, a guide portion for guiding the up and down movement of the movable member, an operation portion for manually moving the movable member downward, And a resilient member for automatically returning the movable member moved upward to an upper position. 2. The hand scaler polishing apparatus according to claim 1, wherein the stationary member is capable of adjusting an inclination angle of the inclined portion with respect to the horizontal portion. 3. The hand scaler polishing apparatus according to claim 1, further comprising scaler fixing means for fixing the hand scaler. 4. The hand scaler polishing apparatus according to claim 1, further comprising a main body rotating means for horizontally reciprocating the polishing apparatus main body around a predetermined reference point.