JPH0610983Y2 - Dental instrument holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a dental instrument holder, and more particularly, to a movable hose to which a dental instrument is coupled can be smoothly pulled out and pulled back at the time of dental treatment. The present invention relates to a dental instrument holder that can be easily assembled.

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

For example, as shown in Japanese Utility Model Laid-Open No. 60-27913, a plurality of independent unit holders are laterally fixed side by side to form a plate-like holder, and each unit holder is provided with a movable hose for leading out. It is known that a longitudinal cut groove is provided.

(Problems to be Solved by the Invention) The instrument holder of the preceding example has excellent workability because it is easy to place and take out the dental instrument. However, during dental treatment, the movable hose can be smoothly pulled out and pulled back together with the dental instrument, and when the instrument is taken out, the operation such as rotation is started automatically and surely,
There has not yet been provided a dental instrument holder that stops operating when placed.

(Means and Examples for Solving Problems) As a result of earnest studies to solve the above problems, the present inventor has conducted a diligent study and found that the dental instrument and the movable hose smoothly move toward the dental treatment side in the dental treatment. A dental instrument holder that can be pulled out and pulled back, that is easy to assemble, and that starts operation automatically and without malfunction when the instrument is taken out and stops the operation when it is placed. developed.

That is, the present invention, in the longitudinal groove cut out of the hanger frame,
A U-shaped instrument hanger for mounting a dental instrument connected to a movable hose is provided to be openable and closable, and bearing holes for the U-shaped instrument hanger spindle are provided on opposite walls of the longitudinal groove at the end of the hanger frame. And a pair of umbrella-shaped rollers are rotatably and pivotally supported so as to face the tip of the U-shaped instrument hanger so as to face each other, and the longitudinal groove is formed in the side body of the U-shaped instrument hanger. Along the side chair for treatment, a guide roller is rotatably provided and a non-rolling body is provided on the opposite side body.
Further, the U-shaped instrument hanger and / or the hanger frame is provided with a detection device for detecting placement or removal of the dental instrument to form a dental instrument unit holder. A dental instrument holder characterized in that a plurality of them are fixed side by side to form an assembly.

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

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

In the figure, 1 is a dental instrument unit holder, 2 is a U-shaped instrument hanger, 3 is a hanger frame, 4 is a longitudinal groove, 5 is a support shaft, 6 is a bearing hole, 7 is an umbrella roller, and 8 is Spring, 9 is micro switch, 11 is proximity switch, 19 is guide roller, 20 is non-rolling element,
A is a dental instrument, and B is a movable hose.

As shown in FIG. 2, the dental instrument unit holder 1 according to the embodiment of the present invention has a rectangular and substantially symmetrical shape around the vertical axis (XX 'axis), and a plurality of these are horizontally arranged. A plate-shaped dental instrument holder is constructed by juxtaposing and fixing in the direction (Y-Y 'direction).

The dental instrument unit holder 1 includes a hanger frame 3 and a U-shaped instrument hanger 2 in plan view.
The U-shaped instrument hanger 2 is inserted into and held in the cut longitudinal groove 4 with the hanger frame 3 as a base.

That is, by pulling the front of the U-shaped instrument hanger 2 outward with fingers, the interval C can be expanded, and by compressing with the fingers, the interval C can be reduced. When inserting, this is done while compressing.

A dental instrument A such as an air turbine handpiece and 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 so as to project at the end of the longitudinal groove 4, and contacts the contact portion 22 when the dental instrument hanger 2 is closed.

On the extending portion of the side wall 31 of the hanger frame 3, there is a stay square hole 33 for laterally fixing a plurality of dental instrument unit holders 1 side by side to assemble a plate-shaped dental instrument holder (Y-Y '). ) Direction.

Bearing holes 6 and 6 are bored in both front ends of the side wall 31, and support shafts 5 and 5 of the U-shaped instrument hanger 2 are supported (FIG. 3).

A pair of umbrella-shaped rollers 7, 7 are rotatably provided on the tip end of the U-shaped instrument hanger 2 so as to face each other and face each other via the support shafts 5, 5.

The U-shaped instrument hanger 2 includes the support shafts 5 and 5.
And umbrella-shaped rollers 7, 7 and a pair of opening / closing pivotal holding portions 2
1 and 21, a rear end contact portion 22, connecting shafts 18 and 20 'connecting the intermediate pivot portion 21 and the contact portion 22, a guide roller 19, and a non-rolling body 20. 1
9 is rotatably supported by the connecting shaft 18, and the non-rolling element 2
0 is fitted and fixed to the connecting shaft 20 '.

As shown in FIG. 3, the non-rolling body 20 has a curved surface on the surface facing the guide roller 19 to reduce the contact resistance with the movable hose B.

Further, in the case of this example, the connecting shaft 20 'is fitted into the long groove of the non-rolling body 20 as a square rod, but these may be formed as an integral body.

As the material of the non-rolling element, one having good lubricity and abrasion resistance, for example, ceramic (alumina, zirconia, etc.),
A synthetic resin (for example, a fluorine resin, a silicon resin, a polycarbonate resin, or the like), a metal, or the like is preferable.

At this time, the connecting shafts 18 and 20 'are preferably made of an elastic material such as metal (iron, copper, aluminum, etc.) or plastic. Due to its elasticity, the opening and closing of the interval C of the U-shaped instrument hanger 2 can be easily carried out by pinching and opening and closing the opening and closing pivot support parts 21 and 21 with fingers.

In addition, the guide roller 19 and the non-rolling body 20 are movable hose B.
Are arranged with an interval C allowing passage and sliding.

As shown in FIG. 1, the dental instrument A has its tip directed forward (in the X direction) and is laid on the umbrella-shaped rollers 7, 7 and the guide roller 19 and the non-rolling body 20 to be stabilized on the U-shaped instrument hanger 2. And placed. Therefore,
When the dental instrument A is taken out, the movable hose B connected to the dental instrument A is connected to the guide roller 19 and the non-rolling body 2.
Although it passes between 0, it is smoothly guided by the umbrella-shaped rollers 7 and 7 when it is pulled out and pulled back in the vertical (X) direction, and it is pulled out in the lateral (Y-Y ') direction and is a guide roller when pulled back. The movable hose B is smoothly guided in and out in any direction by being smoothly guided by the curved surfaces of 19 and the non-rolling body 20.

The instrument hanger 2 opens and closes with the support shafts 5 and 5 as the center of rotation.

Therefore, the assembly is performed by first using the fingers to manually rotate the pivot holding parts 21, 21.
The movable hose B to which the dental instrument A is connected is inserted from between the umbrella-shaped rollers 7, 7 by pinching the vicinity and widening the interval C, and then compressed with fingers to reduce the interval C and the hanger frame 3 After inserting the U-shaped instrument hanger 2 into the longitudinal groove 4, the supporting shafts 5, 5 are inserted into the bearing holes 6, 6 by releasing the compressive force. The decomposition is in reverse order.

In the present invention, as shown in FIG. 3, the instrument hanger 2 is on the treatment chair side (left side in the drawing).
The connecting shaft 18 and the rotatable guide roller 19 are provided only on one side, and the non-rolling body 20 is provided on the opposite side (right side in the drawing).

At the time of dental treatment, the dentist pulls out the instrument A connected to the movable hose only to the side of the chair on which the patient is seated and pulls it back. Therefore, it is sufficient to provide the guide roller 19 substantially only on the side of the chair. However, since the opposite side is only in contact with the movable hose B lightly, it is possible to provide a non-rolling body 20 having a curved surface, which is simple and inexpensive.

Note that the guide roller 19 and the non-rolling body 20 may be exchangeable when the mounting position of the dental instrument holder on the chair is not constant due to the dominant arm of the dentist.

Next, a detection device for detecting the proper placement state of the dental instrument A will be described.

10 is a bracket fixed below the step 32,
The spring 8 is provided between the upper surface of the bracket 10 and the lower surface of the contact portion 22.

The spring 8 is a U-shaped instrument hanger 2
When the dental instrument A is placed on the contact portion 22, the contact portion 22 closes to the step portion 32 due to its weight, and when the instrument A is taken out, the contact portion 22 is urged to separate from the step portion 32. It

FIG. 1 illustrates a closed state. Also the bracket 10
A micro switch 9 is provided at a proper position at the tip of the contact part 22, and when closed, the back surface of the contact portion 22 presses the micro switch 9 to detect that the dental instrument A is placed. When the micro switch 9 detects the placement, the operation of the instrument A automatically stops. On the contrary, when it is opened, the micro switch 9 is released to detect that the dental instrument A is taken out. When the micro switch 9 detects the removal, the operation of the instrument A automatically starts.

Further, the proximity switches 11 and 11 are provided at both ends of the hanger frame 3.
May be provided to detect the object D (for example, a ferromagnetic metal) attached to the placed dental instrument A. That is, the proximity switches 11 and 11 detect only when the instrument A is placed at the specified position. Therefore, for example, when the instrument A is placed on the U-shaped instrument hanger 2 in the reverse direction in an unstable manner, even if the micro switch 9 may detect the placement by weight, the proximity switches 11, 11
Does not detect placement.

In the embodiment of the present invention, the micro switch 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 the position. If it is detected by the above, the malfunction of the dental instrument A can be completely prevented.

It is also possible to display a signal lamp when the placement or removal is detected. In this embodiment, a micro switch and a proximity switch are used as the detection device,
Various switches such as a reed switch and a light detection switch can also be used.

(Effects of the Invention) The present invention is as described above, and thus the present invention has the following operational effects.

(1) The movable hose connected to the dental instrument is
In the U-shaped instrument hanger, umbrella-shaped rollers that face each other in the vertical direction and guide rollers in the lateral direction on the chair side guide the guide smoothly so that the dentist can work smoothly. It has very little resistance to fingers and can perform delicate work as you wish.

Further, since the movable hose can be smoothly taken in and out, there is no fear that a large contact resistance is given to the opening and closing of the U-shaped instrument hanger and the switch malfunctions.

(2) Since the U-shaped instrument hanger can be opened and closed by elastically expanding or contracting the interval at the end, when installing it on the hanger frame, insert it with the interval reduced,
This can be easily performed by releasing the contracting force and inserting the support shaft into the bearing hole. Further, the insertion and removal of the movable hose to which the dental instrument is connected into the U-shaped instrument hanger interval can be easily performed by taking out the U-shaped instrument hanger to the outside and expanding and restoring it.

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

(3) When a dental instrument is placed, its rotation and other operations are automatically and reliably stopped, and when it is taken out, the operation is started, so there is no malfunction, and safety and energy-saving effects are high.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an instrument unit holder according to an embodiment of the present invention, FIG. 2 is a plan view, and FIG. 3 is a first view.
It is a cross-sectional view taken along the line I-I of the figure. 1 ... Dental instrument unit holder, 2 ... U-shaped instrument hanger, 3 ... Hanger frame, 4 ... Vertical groove, 5 ... Support shaft, 6 ... Bearing hole, 7 ... Umbrella roller 8 ... Spring, 9 ... Micro switch, 11 ... Proximity switch, 19 ... Guide roller, 20 ... Non-rolling body, A ... Dental instrument, B ... Movable hose, XX '... Vertical center line, Y-Y '... Horizontal direction

Claims (3)

[Scope of utility model registration request] 1. A U for mounting a dental instrument connected to a movable hose in a longitudinally cut groove of a hanger frame.
A U-shaped instrument hanger is provided so as to be openable and closable, bearing holes for U-shaped instrument hanger support shafts are provided on opposite walls of the longitudinal groove at the end of the hanger frame, and the tip of the U-shaped instrument hanger is provided. A pair of umbrella-shaped rollers are rotatably pivotally supported so as to face each other, and the side body of the U-shaped instrument hanger is rotatably guided only to the side body of the treatment chair along the longitudinal groove. A roller is provided and a non-rolling body is provided on the opposite side body, and a detection device for detecting placement or removal of the dental instrument on the U-shaped instrument hanger and / or hanger frame is provided for dental use. A dental instrument comprising an instrument unit holder, and a plurality of the dental instrument unit holders are juxtaposed and fixed to form an assembly. Strike instrumented holder. 2. A U-shaped instrument hanger and a hanger frame are provided with a spring urged so that the dental instrument is closed when it is placed and opened when it is taken out. The dental instrument holder according to claim 1, which is characterized in that. 3. The dental instrument holder according to claim 1, wherein the detection device is a micro switch and / or a proximity switch.