JPH025952A - Instrument holder for dental therapy - Google Patents

Abstract

PURPOSE:To perfectly prevent the erroneous operation of a dental instrument by detecting the placing or taking-out of the instrument from the weight and position by using a microswitch and/or approach switch. CONSTITUTION:A microswitch 9 is installed at a proper position at the top edge of a bracket 10, and the reverse surface of a contact part 22 presses the microswitch 9 on closure contact, and the placing of a dental instrument A is detected. When the microswitch 9 detects said placing, the operation of the instrument A is automatically suspended. Further, in the opening on the contrary, the microswitch 9 is released, and the taking-out of the dental instrument A is detected. When said taking-out is detected by the microswitch 9, the operation of the instrument A is automatically started. Further, approach switches 11 and 11 are installed at the top edges of a hanger frame 3, and an article D (e.g., ferromagnetic metal) fitted onto the placed dental instrument A may be detected.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a dental instrument holder, and particularly to a dental instrument holder that can smoothly pull out and pull back a movable hose connected to a dental instrument I during dental treatment. The present invention also relates to an ince 1 to lumen h boulder for ck family which is easy to assemble.

(Prior Art) Conventionally, in dental treatment, a plate-shaped dental instrument holder is used, which is fixed to the side of a treatment chair to facilitate placement and removal of a tJifJ instrument.

For example, as shown in Japanese Utility Model Application Publication No. 60-27913, a plurality of independent unit holders are horizontally fixed side by side to form a plate-shaped holder, and each unit holder has a movable hose guide. A device with a vertically long incision groove is known.

(Problems to be Solved by the Invention) The instrument holder of the previous example has excellent workability because it is easy to place and take out a dental instrument. However, when treating teeth f4, the movable pose can be smoothly pulled out and pulled back in all directions together with the dental instruments, and when the instruments 1 to 1 are taken out, operations such as rotation will automatically and reliably start. However, there are no instrument holders available yet that stop operating when placed in the position.

(Means and Embodiments for Solving the Problems) In order to solve the above problems, the present inventor has conducted intensive research and found that during dental treatment, the movable hose can be moved smoothly in any direction with the dental instrument men. A dental instrument that can be pulled out and pulled back, is easy to assemble, starts operating automatically and without malfunction when the instrument is put away, and stops operating when it is placed. Developed a ment holder.

That is, the present invention provides the cut vertical groove 4 of the hanger frame 3.
, a dental instrument A connected to a movable hose
A U-shaped instrument hanger 2 on which the U-shaped instrument hanger 2 is mounted is provided so as to be freely closable, and a bearing hole 5' for the U-shaped instrument hanger support shaft is provided on both opposing walls of the longitudinal groove at the front of the hanger frame 3.
Further, a pair of umbrella-shaped rollers 6 are rotatably supported at the tips of the U-shaped instrument hanger 2 in opposition to each other, and the U-shaped instrument hanger 2
At least a pair of guide rollers 7 along the longitudinal groove are rotatably provided on both sides of the U-shaped instrument hanger 2 and/or the hanger frame 3. This is a dental instrument holder characterized in that a plurality of FK instrument unit holders configured with a detection device for detecting are fixed side by side.

The present invention will be explained below with reference to the drawings.

FIG. 1 is a longitudinal cross-sectional side view of a dental instrument unit holder according to an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a cross-sectional view taken along line Ii in FIG. 1, and FIG. FIG. 3 is a cross-sectional view of the embodiment.

In the figure, 1.12 is a durable instrument unit boulder, 12 and 13 are U-shaped instrument hangers, 3 is a hanger frame, 4 is a vertical groove, 5 is a spindle, 6 is an umbrella-shaped roller, 7 and 14 ... is a guide roller, 8 is a spring, 9 is a micro switch, 11 is a proximity switch, A is a dental instrument, and B is a movable hose.

The dental instrument unit holder 1 according to the embodiment of the present invention has a rectangular symmetrical shape with the vertical axis (XX' axis) as the center as shown in FIG. -Y' direction), a plate-shaped tMl;4 instrument holder is constructed.

The instrument unit holder 1 for IFifJ is composed of a hanger frame 3 and a U-shaped instrument hanger 2 when viewed from above. It is inserted and held in the groove 4.

That is, by pulling the front of the U-shaped instrument hanger 2 outward with your fingers, the distance C can be reduced.
can be spread out, and the interval C can be reduced by compressing it with your fingers, so when inserting it into the vertically long iF 44, do so while compressing it. Note that a dental instrument A such as an air turbine handpiece or a micromotor handpiece is placed on the U-shaped instrument hanger 2.

The longitudinal groove 4 of the hanger frame 3 is surrounded by a side wall 31 (FIG. 3). A step portion 32 is provided at the end of the longitudinal groove 4 with a protrusion 14, and comes into contact with the contact portion 22 when the dental instrument hanger 2 is closed.

There are several CM 1 on the side wall 31 of the hanger frame 3.
A square hole 33 for a stay is provided horizontally (throughout in the YYi direction) for assembling a plate-shaped IR instrument holder by fixing the 4 instrument unit holders 1 side by side.

Further, bearing holes 5° and 5° are bored at both front ends of the side wall 31, and the supporting shaft 5.
5 is supported.

At the tip of the U-shaped instrument hanger 2, there is a pair of umbrella-shaped rollers 6.6 or supports 1+! 111
5.5.

The U-shaped instrument hanger 2 includes support shafts 5, 5 with 11Tf markings, an umbrella roller 6.6, a pair of opening/closing pivots 21.21 at the tip, an abutment section 22 at the rear end, and an intermediate pivot. Holding part 2
1 and the contact portion 22.
．． 23. It is composed of at least a pair of guide rollers 7.7, and the guide rollers 7.7 are rotatably fitted onto the connecting shaft 23.23.

In this case, it is preferable that the connecting shafts 23, 23 are made of an elastic material such as metal (iron, copper, aluminum) or plastic. Due to its elasticity, the distance C between the U-shaped instrument hanger 2 can be expanded and contracted with your fingers.
It can be opened and closed freely.

Also, at least the pair of guide rollers 7.7 are
They are arranged with a gap C that allows the movable hose B to pass through and slide.

As shown in Fig. 1, instrument A for IFN is placed with its tip facing forward (in the X direction) and placed on the umbrella roller 6.6 and guide roller 7.7. Be placed stably on 2.

Therefore, when taking out the m, F4 instrument A, the movable hose B tied to it passes between the at least one pair of guide rollers 7.7, but the vertical (X)
direction, and when pulled back the umbrella-shaped roller 6.6
When pulled out in the lateral (y-y') direction, the sliding hose B is smoothly guided by the guide rollers 77 so that the sliding hose B can be smoothly guided in and out in any direction.

A dental instrument unit holder 12 according to another embodiment shown in FIG. Upper and lower 2 that rotatably hold the guide roller i4, 14.1.414
The difference is that it is composed of a pair of connecting shafts] 515.15.15. Therefore, even if the movable port B3 is pulled out quite low in the lateral (Y-Y') direction, the guide roller 14.・Since guide rollers 14. are arranged above and below, the guide rollers 14. You will be guided smoothly by...

Note that the instrument hanger 2 opens and closes with the support shaft 5.5 as the center of rotation.

Therefore, when assembling the U-shaped instrument hanger 2, the pivot portion 21.
Pinch the vicinity with your fingers and pull outward to widen the distance C, insert the connected movable bowse B of the dental instrument I-A between the umbrella rollers 6.6, and then compress it to increase the distance C. After inserting the U-shaped insulator hanger 2 into the vertical groove 4 of the hanger frame 3 while reducing the size, the support shaft 5.5 is inserted into the bearing holes 5' and 5'' by releasing the compressive force. Disassembly is performed by reversing this 111ft9
10 is a bracket fixed under the stepped portion 32,
A spring 8 is interposed between the upper part 1 of the brackets 1 to 10 and the lower surface of the abutment part 22.

When the dental instrument A is placed on the U-shaped instrument hanger 2, the spring 8 causes the contact portion 22 to come into contact with the stepped portion 32 due to the weight of the dental instrument A.
When it is taken out, the contact portion 22 is urged to separate from the stepped portion 32.

FIG. 1 illustrates the closed state. Also bracket 10
A microswitch 0 is provided at an appropriate position at the tip of the dental instrument 1, and when the contact portion 22 is closed, the back surface of the contact portion 22 presses the microswitch 9, thereby detecting that the dental instrument 1=A has been placed. When the microswitch 9 detects that it is placed, the operation of the instrument-A is automatically stopped. Conversely, when they are opened, the microswitch 9 is released and it is detected that the dental instrument A has been taken out. When the microswitch 9 detects the withdrawal, the operation of the instrument A is automatically started.

In addition, proximity switches 11 and 11 are installed at both ends of the bunker frame 3.
may be provided to detect an object D (for example, a ferromagnetic real metal) attached to the mounted dental instrument A. That is, the proximity switch 11.11 detects only when the instrument A is placed at the specified position U.

Therefore, for example, U-shaped instrument hanger 2
When instrument 8 is placed unstable in the opposite direction above, micro switch 9 weighs +13! Even if the proximity switch 11.11 detects the placement, the proximity switch 11.11 does not detect the placement.

In the embodiment of the present invention, the microswitch 9 and/or the proximity switch 11.11 can be used to detect the placement or removal of the instrument A from both the weight and/or position, so both of the above-mentioned swings are used. If this is detected, malfunctions of the dental instrument A can be completely prevented.

Further, when placement or removal is detected, it can be indicated by a signal lamp. Note that in this example, a microswitch and a proximity switch were used as the detection device, but
Various swifts such as reed switches and photodetection switches can also be used.

(Effects of the Invention) The present invention is as described above, and therefore, the following effects are achieved according to the present invention.

(1) The movable hose connected to the ifl instrument is guided in the U-shaped instrument hanger by opposing umbrella rollers in the vertical direction and at least one pair of guide rollers in the yellow direction. Since it is smoothly guided in and out in both directions, there is extremely little resistance to the dentist's fingers during tasks such as cutting teeth.
You can do the exact work you want. In addition, since the movable hose moves smoothly in and out, it creates a large contact resistance that disrupts the opening and closing of the U-shaped instrument hanger.
There is no risk of the switch malfunctioning.

(2) The U-shaped instrument hanger can be opened and closed by expanding or contracting the gap at the end using elasticity.
Attachment to the hanger frame can be easily carried out by inserting with a reduced interval, releasing the contraction force, and inserting the support shaft into the bearing hole. In addition, insertion and removal of the movable hose connected to the dental instrument within one space between the U-shaped instrument hangers can be easily done by taking out the U-shaped instrument hanger, expanding it, and restoring it. I can do it.

Therefore, the dental instrument holder of the first invention is extremely easy to assemble and disassemble, and easy to manufacture and maintain.

(3) When the 1M instrument is turned on,
Since it automatically and reliably stops its rotation and other operations and starts operating when it is removed, there is no malfunction, and it is safe and highly energy-saving.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional side view of an instrument 1 to a unit holder according to an embodiment of the present invention, Fig. 2 is a plan view, Fig. 3 is a transverse cross-sectional view taken along line I-1 in Fig. 1, and Fig. 11 is another FIG. 1.12: Dental instrument unit holder 2.13 + U-shaped instrument hanger 3 = hanger frame, 4: Vertical groove, 5: Support shaft, 5': Bearing hole,
6: Umbrella-shaped roller

Claims (3)

[Claims] (1) A U-shaped instrument hanger on which a dental instrument connected to a movable hose is mounted is provided in a longitudinal groove cut out in the hanger frame so that it can be opened and closed, and both opposing walls of the longitudinal groove at the front of the hanger frame are provided. is provided with a bearing hole for a supporting shaft of the U-shaped instrument hanger, and a pair of umbrella-shaped rollers are rotatably supported at the tip of the U-shaped instrument hanger in opposition to each other. At least one pair of guide rollers along the longitudinal grooves are rotatably provided on both sides of the U-shaped instrument hanger, and the dental instrument is placed on or taken out from the U-shaped instrument hanger and/or the hanger frame. 1. A dental instrument holder comprising a plurality of dental instrument unit holders arranged side by side and each having a detection device for detecting the same. (2) A biased spring is interposed between the U-shaped instrument hanger and the hanger frame so that the dental instrument is brought into close contact with the hanger frame when placed thereon, and opened when the dental instrument is taken out. The dental instrument holder according to claim 1. (3) The dental instrument holder according to claim 1 or 2, wherein the detection device is a microswitch and/or a proximity switch.