JPH0411702Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is an instrument holder for dental treatment, especially a dental treatment instrument equipped with an automatic switch mechanism that prevents malfunctions when taking out and placing instruments. Regarding ment holders.

(Prior Art) Generally, in dental treatment, a dentist performs various treatment operations on a patient by pulling a dental table attached to the tip of a support arm.

On the dental table, various therapeutic chemicals and tools are placed, as well as trays, gas burners, etc. At the lower front part of the table are various hands connected to the ends of movable hoses. An instrument holder for holding dental treatment instruments such as pieces and syringes is attached.

There are various types of instrument holders, and they are designed to hold instruments stably,
Ease of removal, pull-out of movable hoses, and ease of storage have been taken into consideration.

Among them, a type of instrument holder that is placed and held on a plate-shaped instrument holder is known as an instrument holder that can stably hold instruments and easily take them out. There is also known one provided with a vertically long cut groove for leading out the movable hose (for example, Japanese Utility Model Application No. 60-27913).

(Problems to be solved by the invention) The instrument holder having the above-mentioned vertical incision groove can stably hold instruments such as handpieces and syringes, and can also be taken out by grasping the grip of the instrument with your fingers. This is preferable because it can be taken out as is and used for tooth grinding or other operations.

However, there has not yet been provided a dental treatment instrument that operates automatically and without malfunction when an operator lifts the instrument with his or her fingers during dental treatment.

(Means and Examples for Solving the Problems) As a result of research to solve the above problems, the present inventor has developed an instrument holder of a type in which an instrument is placed and held on a plate-shaped holder. We have developed an instrument holder for dental treatment that has an automatic switching mechanism that allows the movable hose to be pulled out and pulled back together with the instrument smoothly, and that does not malfunction.

That is, the present invention provides a dental treatment instrument holder for mounting and holding a dental treatment instrument connected to the end of a movable hose, which has rotational shaft portions on the front left and right outer wall sides, and an instrument hanger having a substantially concave cross-section and a vertically long cut groove extending from the front to the back for leading out a movable hose; an instrument hanger frame for loosely fitting and holding the instrument hanger; The instrument hanger is equipped with an elastic support body for the instrument hanger, and a switch that is provided at the rear of the instrument hanger frame or at the rear of the instrument hanger and operates in response to the rise and fall of the rear of the instrument hanger. This is a unique dental treatment instrument holder.

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

FIG. 1 is a perspective view of a dental treatment instrument holder according to an embodiment of the present invention, FIG. 2 A is a sectional view taken along the line - - in FIG. Partial sectional view, Figure 3 shows a portion of how the movable hose with the dental treatment instrument contacts in the dental treatment holder.
FIG. 4 is a perspective view of the instrument hanger.

In the figure, 1 is a dental treatment instrument holder, 2 is a holder end, 3 is an instrument hanger frame, 4 is a protector, 5 is an instrument hanger, 6 is a micro switch,
6', 6'' are reed switches, 7 is a roller, 8 is a holder bar, 9 is an elastic support for an instrument hanger (coil spring), A is an instrument,
B is a movable hose.

As shown in FIG. 1, the instrument holder 1 according to the embodiment of the present invention is screwed to a holder bar 8 projecting from below, such as a dental table.

This has a protector 4 in front, holder ends 2 on the left and right sides, and a plurality of instrument hanger frames 3 sandwiched between them.

Furthermore, an instrument hanger 5 is loosely fitted within the instrument hanger frame 3.

Note that a roller 7 is provided at the rear end of the protector 4 near the longitudinal incision groove of the instrument hanger 5.
is provided, and plays the role of smoothing out and pulling back the movable hose B.

The instrument hanger frame 3 has a rectangular recess, and is provided with a vertically long cut groove 31 (see FIG. 3) extending from the rear to the front for conducting the movable hose B.

The instrument hanger 5 is as shown in FIG.
1, a pivot shaft 52 is protruded from the front left and right outer wall sides, and near the center of the concave cross-section there is a stepped part with an arcuate curved surface for stably placing the abdomen of the instrument A. 53, and a rising step 54 is provided at the rear for stably abutting the butt of the instrument A when it is placed thereon.

In addition, a micro switch 6 is provided at a suitable position on the rear surface of the instrument hanger frame 3, and when the weight of the mounted instrument A is applied to the rear of the instrument hanger 5, the back surface contact part is activated by the micro switch. 6 is pressed sufficiently, the drive of instrument A is automatically turned off.

In this case, the pivot shaft 52, which is the pivot point of the instrument hanger 5, is provided at the front, but the abutting portion 55 with the micro switch 6 is provided far back.

Therefore, according to the lever principle, when the instrument A is stably placed on the stepped portion 53 at the point of action that is sufficiently far from the fulcrum, the micro switch 6 is easily pressed. If it is placed too close to the step 54 and unstable, the point of action will be too close and the switch cannot be pressed.

Therefore, the micro switch 6 cannot be reliably activated until the instrument A is placed at a predetermined location until it comes into contact with the stepped portion 54 of the instrument hanger 5.
is activated.

In general, the micro switch 6 has an elastic movable piece which is a type of elastic support at its pressing portion, so it will be activated when it receives a pressing force of a certain level or more from the instrument hanger 5.

In any case, the instrument holder of the present invention only needs to be provided with a switch that operates in accordance with the elevation of the rear part of the instrument hanger 5, and for this purpose, a switch is provided at a position away from the pivot shaft 52 in front of the switch. An elastic support 9 for the instrument hanger, such as a coil spring, is provided.

By the way, when the operator takes out the instrument A such as a handpiece from the instrument holder 1 for tooth cutting or the like and performs treatment work, the movable hose B is also pulled out to the front of the protector 4 side.

Considering the contact state between the movable hose B and the instrument hanger 5 in this case, since the hose B is pulled out forward, it comes into contact with the front part of the hanger 5, that is, the pivot shaft 52 (the pivot point ), as a result of the lever principle, sufficient force is not applied to press the micro switch 6 at the rear of the instrument hanger 5, and therefore, the movable hose B does not move into the instrument during the operator's treatment work. Malfunction of the micro switch 6 can be prevented even if the micro switch 6 is slid in and out of the mento hanger 5.

It goes without saying that the micro switch 6 may be replaced by other various switches, such as a reed switch consisting of a reed switch body 6' and a magnet 6'' as shown in FIG. 2B.

Furthermore, a more preferable additional configuration for preventing malfunction of the switch 6 due to contact with the movable hose B will be described.

As shown in FIG. 3, first, the vertically long cut groove 51 of the instrument hanger 5 is formed to have a substantially ><-shaped cross section, and a stepped portion 53 for mounting the instrument A on the upper slope thereof is formed. Next, a vertical incision groove 31 is provided in the lower plate 32 of the instrument hanger frame immediately below the instrument hanger frame, and the width of the groove 31 is set to the width of the cross section of the longitudinal incision groove of the instrument hanger 5 and the additive width of the cross section of the longitudinal incision groove 5 Make it the width between the blank space and the width.

By doing this, the operator can use instrument A.
When the hose B is pulled out and pulled horizontally, the hose B comes into contact with two places: the lower plate 32 of the instrument hanger frame and the protruding part of the hanger 5, so 1/2 of the force is applied to each. As time passes, it decreases in half. Therefore, sufficient force is not applied to press the micro switch 6, and malfunction of the switch during treatment work can be completely prevented.

In addition, a movable hose sliding roller 7 is provided separately from the instrument hanger 5 in front of the vertically long cut groove 51 for leading out the movable hose of the instrument holder 1, as shown in FIG.
A roller 7 made of, for example, Teflon resin is supported on a roller support shaft 71 . Thereby, the movable hose B can be drawn out and pulled back smoothly.

(Effects of the invention) As described above, the present invention is a dental treatment instrument holder for mounting and holding a dental treatment instrument connected to the end of a movable hose. an instrument hanger having a support shaft, a substantially concave cross section, and a vertically long cut groove extending from the front to the back for leading out a movable hose; an instrument hanger frame for loosely fitting and holding the instrument hanger; An elastic support body for the instrument hanger is provided at a position away from the pivot shaft, and is provided at the rear of the instrument hanger frame or at the rear of the instrument hanger, and operates in response to the rise and fall of the rear of the instrument hanger. The switch is equipped with a switch that automatically turns off when the instrument is placed in the designated place on the instrument holder after treatment, and even if the hose is being pulled out and pulled back while cutting the tooth. , the switch will not malfunction and become temporarily off.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a dental treatment instrument holder according to an embodiment of the present invention, FIG. 2 A is a sectional view taken along the line - - in FIG. 1, and FIG. FIG. 3 is a partially cross-sectional explanatory view showing how the movable hose with the dental treatment instrument contacts within the dental treatment holder, and FIG. 4 is a perspective view of the instrument hanger. 1... Instrument holder for dental treatment,
2... Holder end, 3... Instrument hanger frame, 4... Protector, 5... Instrument hanger, 6... Micro switch,
6', 6''...Reed switch, 7...Roller, 8
... Holder bar, 9 ... Elastic support for instrument hanger, 51 ... Longitudinal incision groove, 52 ...
...Rotating shaft, A...Instrument, B...Movable hose.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a dental treatment instrument holder for mounting and holding a dental treatment instrument connected to the end of a movable hose, a pivot shaft is provided on the front left and right outer wall sides. an instrument hanger having a substantially concave cross section and a vertically long cut groove extending from the front to the back for leading out a movable hose; an instrument hanger frame for loosely fitting and holding the instrument hanger; An elastic support body for the instrument hanger provided at a position away from the support shaft, and a switch provided in the rear part of the instrument hanger frame or the rear part of the instrument hanger and operated in response to the rise and fall of the rear part of the instrument hanger. An instrument holder for dental treatment characterized by comprising: (2) A utility model registration request characterized in that the instrument hanger is provided with a movable hose sliding roller that is provided separately from the instrument hanger and is located in front of the vertically long cut groove for leading out the movable hose. An instrument holder for dental treatment according to scope 1. (3) The vertically long incision groove for leading out the movable hose of the instrument hanger has an approximately shaped cross section, and the width of the vertically long incision groove cut into the lower plate of the instrument hanger frame directly below it is the same as that of the instrument hanger. For dental treatment according to claim 1 or 2 of the utility model registration claim, which is characterized in that the width is between the additive width of the cross section of the vertically long cut groove of the hanger and the width of the space between the two pointed ends. instrument holder.