JPH036333Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a holding mechanism for an instrument hose that supplies power to a dental instrument such as a cutting tool installed in a dental treatment table.

PRIOR ART FIG. 3 is a side view showing an outline of the main parts of a conventional dental treatment table. In the figure, 1 is a column supporting a treatment table 2, and an instrument holder 4 is placed below the treatment table 2. A rotary arm 3 that is rotatably held in a substantially horizontal direction is rotatably mounted. Instrument holder 4 has instrument 5.
When in use, the instrument 5 is pulled out from the instrument holder 4 to cut the affected area. The hose 6 is a power source for rotationally driving the instrument 5 such as a cutting tool, for example, supplies power such as air, water, electric power, etc. Therefore, the length of the hose 6 is the same as that of the instrument 5. 5 is selected with sufficient margin for the distance from the position where it is suspended on the instrument holder 4 to the affected area of the patient sitting on the chair, and the other end communicates with a power source (not shown). It is connected to a treatment table 2 that is The conventional instrument hose 6 is simply suspended between the treatment table 2 and the instrument holder 4, and has sufficient length when in use. Therefore, when not in use, the hose 6 is in contact with the floor as shown in the figure. This naturally has to be eliminated when sanitary issues are taken into account as a medical device, and various proposals have been made for this purpose.

Purpose The present invention was developed in view of the above-mentioned circumstances, and in particular, it has a new structure that allows the dental instrument hose to not come in contact with the floor etc. when not in use, and which can be easily extended when in use. This was made for the purpose of providing an instrument hose holding mechanism.

Configuration Figure 1 is a side view of the main parts for explaining the outline of the holding mechanism of the dental instrument hose in this case. with the same reference number as in the case,
The explanation will be omitted. In the figure, a column 7 is fixedly installed below the instrument holder 4, and a support arm 9 rotatable around an axis 8 is attached to the tip of the column 7.
is supported, and pulleys 10 and 11 are provided at both ends of the support arm 9, respectively. The hose 6 suspended from the treatment table 2 is guided on the outer peripheral upper surface of the pulley 10 of the holding arm 9, and then
The instrument holder 4 is connected to the instrument 5 in the form of a strap extending from the bottom to the top of the instrument holder 1.
suspended above. Therefore, since the hose 6 is rolled up by the amount that is wrapped, the hanging height H of the hose 6 is reduced by this amount. In use, the instrument 5 is withdrawn and extended to the dotted position indicated at 5', and the external force of this withdrawal causes the pulley 10 to be rotated in the direction of the arrow by an angle A to the position 10'. The hose 6 reaches the instrument holder 4 from the pulley 10', and the hose 6 does not hang on the pulley 11'.

FIG. 2 shows the holding arm 9 shown in FIG.
As seen from the direction, the support arm 9 and the rotation shaft 8 are connected by a spring 13.
When the instrument 5 is pulled out by an external force, a reaction force is generated which increases against the rotational force generated.
Rotational force is stored to return it to position 5 when not in use. When this rotational force returns 5' from the used position to the non-used position, that is, the instrument holder 4,
Due to the reaction force of the spring 13, the pulley 1 of the holding arm
The position 0', 11' returns to the original position 10, 11, and the suspension height H of the hose 6 also returns to its original position.

Effects As is clear from the above explanation, according to the present invention, the instrument hose can be connected to the floor by simply adding the support 7 and the holding arm 9 to the instrument holder 4 of the conventional device. This allows you to obtain a hygienic dental treatment table. In addition, in the conventional technology, in order to smoothly pull the instrument back into the instrument holder, a weight is provided in the middle of the instrument hose, and the gravity of this weight is However, according to the present invention, the above-mentioned weight can be made unnecessary, and furthermore, the spring 13 accumulates a pulling force according to the amount of the instrument being pulled out. Therefore, when returning the instrument to the instrument holder, the pull-back force is large at first, and as the instrument approaches the specified position in the instrument holder, the pull-back force decreases, causing the instrument to It can be quickly and quietly returned to its predetermined position on the instrument holder.

[Brief explanation of drawings]

FIG. 1 is a side view for explaining the outline of the main parts of the dental instrument hose of the present invention, FIG.
The figure shows a conventional example. 2... Treatment table, 4... Instrument holder, 5... Instrument, 6... Hose, 7... Support column, 9... Holding arm, 10, 11
...pulley, 13...spring.

Claims (1)

[Scope of utility model registration request] The holding arm has a pulley rotatably pivotally attached to both ends thereof, and a support for holding the middle part of the holding arm in a substantially horizontal direction at the bottom of the treatment table, and the holding arm is attached to the holding arm. An instrument hose that is supported on the pillar via a member such as a spring that generates a rotational force that resists an applied external rotational force and that supplies power to an instrument that is suspended on the treatment table is attached to the holding arm. A holding mechanism for a dental instrument hose, characterized in that it is hung around a pulley.