JP2807868B2 - Tube support device for dental treatment tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting a tube to which a dental treatment tool is connected, and more particularly, to a device in which the tube is substantially below the surface of a treatment table provided near a patient chair. The present invention relates to a tube support device for a dental treatment tool most suitable for a dental treatment unit of a U-shaped hanging type.

[0002]

2. Description of the Related Art Generally, recent dental treatment units include:
For example, as shown in FIGS. 9 and 10, in the vicinity of a chair 1 for a patient, a tube 3 such as an air turbine type handpiece or an instrument for washing and drying is provided, which is held by a practitioner to perform treatment. A plurality of connected dental treatment tools 2 are provided. The dental treatment tool 2 has a stationary part 5a provided on a peripheral member 5 including a treatment table 4, and is detachably locked to the stationary part 5a. The tube 3 has one end fixed to the surrounding member 5 and the other end connected to the dental treatment tool 2. In such a dental treatment unit, the tube 3 is supported in two modes. That is, FIG.
As shown in FIG. 3, the treatment table 4 is supported by supporting the tube 3 on a support arm 6 which is previously rotatably mounted on the surrounding member 5.
Type located above the upper surface of the
As shown in FIG. 10, there is a type in which the tube 3 is hung downward in a substantially U shape below the surface of the treatment table 4 and supported.

[0003]

By the way, in such a dental treatment unit, in the former type in which the tube 3 is supported by the support arm 6, the dental treatment tool 2 is suspended, so that the practitioner is required. The burden of the dental treatment tool 2 and the tube 3 on the support arm 6 is reduced.
Must be prepared by the number of the tubes 3, so that these groups of support arms 6 come into contact with the patient's eyes, so that there is some psychological adverse effect and there is a disadvantage in appearance quality. In addition, since the support arm 6 has to be reciprocated beyond the treatment table 4, there is a disadvantage that the moving width of the dental treatment tool 2 is increased and operation efficiency is poor. On the other hand, in the latter type in which the tube 3 hangs downward in a substantially U-shape, the tube 3 does not touch the patient's eyes, so that it does not have a psychological adverse effect and is preferable in appearance. In addition, since the weight of the tube 3 is applied to the operator, there is a problem that the operability of the dental treatment tool 2 may be deteriorated accordingly. For example, in long-term treatment, fatigue occurs when the dental treatment tool 2 is gripped.

Conventionally, when returning the dental treatment tool 2 to the stationary portion 5a, the purpose of the tube 3 is to facilitate return.
There is also a roller in which a support roller for supporting the traction roller is set in advance (for example, disclosed in JP-A-7-136223). However, even in this case, since the tube 3 is supported below the treatment table 4, the tube 3 hangs down below the dental treatment tool 2 during treatment, and a traction force acts. Therefore, the effect of reducing the burden of the tube 3 on the practitioner does not occur,
Since the support rollers must be provided in advance, there is a problem that the versatility is inferior and the cost is increased.

[0005] The present invention has been made in view of such problems, and in a dental treatment unit of a type in which a tube hangs downward in a substantially U-shape, the patient has as little psychological effect as possible. In this way, it is possible to reduce the burden on the practitioner by supporting the tube above the dental treatment tool in use, improve the operability of the dental treatment tool, and improve the treatment workability. In addition, an object of the present invention is to provide a tube support device for a dental treatment tool, which can be easily attached to an existing unit to improve versatility.

[0006]

In order to achieve such an object, a tube supporting apparatus for a dental treatment tool according to the present invention comprises:
One end is fixed to a peripheral member including a treatment table arranged near the chair for the patient, and the other end is connected to a dental treatment tool detachably locked to the peripheral member,
In a tube support device for a dental treatment tool that supports a tube of the dental treatment tool that hangs in a substantially U shape below the treatment table surface when the dental treatment tool is used, the tube is detachably attached to the peripheral member. A mounting portion to be mounted,
An arm provided on the mounting portion, a support portion provided on the arm for supporting the tube of the dental treatment tool movably back and forth in the longitudinal direction, and a width direction of the tube supported by the support portion. A guide section for restricting movement is provided.

If necessary, the arm can be extended and contracted in the axial direction, and a telescopic lock mechanism for holding the arm at an appropriate telescopic position is provided. and again,
If necessary, the arm can be moved to two positions, an upright position and a recumbent position, with respect to the mounting portion, and a positioning mechanism for positioning the arm at the upright position and the recumbent position is provided. Further, if necessary, the support portion is configured to be rotatable about the axis of the arm as a center axis. Further, if necessary, the support portion is formed of a roller for rolling the tube.

Further, the mounting portion has an upper side wall and a lower side wall which have an upper side wall and a lower side wall which are opposed to each other with an interval larger than the thickness of the peripheral member to be mounted and can be positioned with the peripheral member interposed therebetween. Part body, a screw rod screwed into one of the upper side wall and the lower side wall of the mounting part body so as to be able to advance and retreat with the other, and provided at one end of the screw rod and cooperating with one of the other sides And a control plate provided at the other end of the screw rod for rotating the screw rod by manual operation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a tube support device for a dental treatment tool according to an embodiment of the present invention will be described with reference to the accompanying drawings. The tube support device S for a dental treatment tool according to the embodiment shown in FIGS. 1 to 8 is mainly applied to a dental treatment unit as shown in FIG. This dental treatment unit is connected to a plurality of tubes 3 such as an air turbine type handpiece or an instrument for washing and drying, which is held near the chair 1 for a patient and which is held by an operator for treatment. A dental treatment tool 2 is provided. Each dental treatment tool 2 is fixed to a surrounding member 5 including a treatment table 4.
a is provided and is detachably locked to the stationary portion 5a. One end of the tube 3 is fixed to the peripheral member 5 and the other end is connected to the dental treatment tool 2. The tube 3 is suspended downward in a substantially U shape below the treatment table 4 and supported.

FIGS. 1 to 5 show a tube support device S for a dental treatment tool according to a first embodiment. The basic configuration of the tube support device S is as follows: an attachment portion 10 detachably attached to the surrounding member 5; an arm 15 provided on the attachment portion 10; And a guide portion 35 that regulates the widthwise movement of the tube 3 supported by the support portion 30.

The mounting portion 10 is larger than the thickness of the peripheral member 5 to be mounted, for example, the thickness of the treatment table 4, the thickness of a handle for projecting from the treatment table 4, and the like. A mounting section main body 11 having an upper side wall 11a and a lower side wall 11b that face each other at an interval and can be positioned with the surrounding member 5 interposed therebetween;
a and the lower wall 11b (in the drawing, the lower wall 11b
b), a screw rod 12 screwed forward and backward with respect to one of the other (upper wall 11a in the figure), and one of the other (upper wall 11 in the figure) provided at one end of the screw rod 12
It comprises a holding plate 13 for holding the peripheral member 5 in cooperation with a), and an operating body 14 provided at the other end of the screw rod 12 for rotating the screw rod 12 by manual operation. Reference numeral 11c denotes a connection wall connecting the upper side wall 11a and the lower side wall 11b.

The arm 15 comprises a large-diameter pipe 15a and a small-diameter rod 15b slidably inserted through the large-diameter pipe 15a, and is capable of extending and contracting in the axial direction.
It is attached to the attaching portion main body 11 of the attaching portion 10 via the holding member 20. Reference numeral 16 denotes a telescopic lock mechanism that holds the small-diameter rod 15b at an appropriate telescopic position with respect to the large-diameter tube 15a. The telescopic locking mechanism 16 includes a manually operable tightening bolt 17 screwed onto the upper part of the large diameter pipe 15a, and the small diameter rod 1.
5b are recessed at a predetermined pitch in the axial direction.
And a plurality of recesses 18 into which the tip of
The small-diameter rod 15b is connected to the large-diameter pipe 15
hold for a.

The holding member 20 has an insertion hole 21 through which the large-diameter pipe 15a is rotatably inserted about its axis.
Is provided. As a result, the support 30 is moved to the arm 1
5 is rotatable around a central axis. Reference numeral 22 denotes a rotation lock mechanism for holding the arm 15 at an appropriate rotation position.
Is fixed to the holding member 20 by a manually operable fixing bolt 23.

The holding member 20 is formed in a block shape, and is supported on a connecting wall 11c of the mounting portion main body 11 of the mounting portion 10 by a support shaft 20a.
The arm 15 is rotatably provided through the
Can be tilted to two positions, a standing position A and a lying position B. As shown in FIG. 4, reference numeral 24 denotes a positioning mechanism for positioning the arm 15 at the upright position A and the recumbent position B, and is constituted by a so-called click mechanism. That is, the positioning mechanism 24 forms two recesses 25 corresponding to the upright position A and the recumbent position B in the connection wall 11 c of the mounting portion main body 11 of the mounting portion 10, and forms these in the holes 26 formed in the holding member 20. A ball 27 that can be fitted into the concave portion 25 is provided so as to be able to move forward and backward, and a spring 28 that constantly urges the ball 27 in the fitting direction is provided inside the hole 26.

The support 30 is a small-diameter rod 1 of the arm 15.
5b. The support portion 30 has a support shaft 32 having an axis perpendicular to the axis of the arm 15 installed between a pair of fork-shaped bifurcated support bars 31, and the tube 3 is rolled on the support shaft 32. Bearing roller 3
3 is provided. The guide portions 35 are configured by supporting guide rollers 36 above the pair of support rods 31, respectively. The interval between the guide rollers 36 is set to an interval at which the tube 3 is loosely inserted so that the tube 3 can be easily moved. That is, the tube 3 is configured to be movably held around the tube 3 by the support roller 33 of the support portion 30 and the guide roller 36 of the guide portion 35.

Therefore, when attaching the tube support device S for a dental treatment tool according to this embodiment, for example, as shown in FIGS.
0, inserting and sandwiching the upper side wall 11a and the lower side wall 11b,
By rotating the screw rod 12 via the operating body 14, the holding plate 13 is advanced, and the treatment table 4 is held between the holding plate 13 and the upper side wall 11a. In this state, the arm 15 is positioned at the lying position B. In this case, since the mounting can be performed simply by inserting the mounting portion 10 and rotating the screw rod 12, the mounting operation is easily performed.

Next, using this tube support device S,
The case of treatment will be described. As shown in FIG. 5, first, the chair 1 is turned down so that the patient is laid down. Generally, the position of the patient's face at this time is located at substantially the same position as or lower than the treatment table 4. Then, the arm 15 is moved from the lying position B to the standing position A to erect the arm 15, the dental treatment tool 2 to be used is detached from the stationary portion 5 a, and the tube 3 of the dental treatment tool 2 is supported by the support portion 30. It is supported by rollers 33. Thereafter, the treatment table 4 is moved to an appropriate position in accordance with the position of the patient's face, etc., and the tightening bolt 17 of the telescopic lock mechanism 16 is loosened to expand and contract the small-diameter rod 15b of the arm 15, thereby tightening at the optimum height. The height of the arm 15 is set by tightening the bolt 17. The rotation lock mechanism 22
The arm 15 is rotated by loosening the fixing bolt 23, the direction of the support portion 30 is adjusted, and the fixing bolt 23 is tightened to set the pull-out direction of the rotating tube 3 to an optimum direction. That is, when the dental treatment tool 2 is used, the support 30 is positioned so that the tube 3 is supported by the support 30 above the dental treatment tool 2. Before using the dental treatment tool 2,
The height position and the rotation position of the support 30 may be adjusted in advance.

In this state, treatment with the dental treatment tool 2 may be performed as shown in FIG. In this case, since the tube 3 is supported by the support portion 30 above the dental treatment tool 2, the weight of the tube 3 can be shared and received by the support portion 30, thereby reducing the burden on the practitioner. In addition, the operability of the dental treatment tool 2 is improved, and the treatment workability is greatly improved. In particular, when the dental treatment tool 2 is operated for a long time, it becomes extremely easy. In this case, the dental treatment tool 2 is moved back and forth to the optimum position. However, since the tube 3 is supported by the support roller 33 and the support roller 33 rolls, the tube 3 can be easily moved back and forth. In addition, since the guide roller 36 also rolls, the tube 3 can be easily moved back and forth, and also in this respect, the operability is good. Furthermore, since the movement of the tube 3 in the left-right direction is restricted by the guide rollers 36 of the guide portion 35, the tube 3 is prevented from coming off the support portion 30, and the treatment is reliably performed.

Furthermore, since the height and the rotation position of the bearing portion 30 are adjusted to an optimum state, the dental treatment tool 2 can treat the patient at the optimum position. In this respect, the operability of the dental treatment tool 2 is improved, and the treatment workability is greatly improved. If the adjustment is necessary, the height position and the rotation position of the support portion 30 may be adjusted by the above operation at an appropriate time.

When another dental treatment tool 2 is to be used, the tube 3 of the used dental treatment tool 2 is detached from the support portion 30 and locked on the stationary portion 5a. The other dental treatment tool 2 may be detached from the stationary part 5a, the tube 3 may be supported on the support part 30, and the operation may be performed in the same manner as described above. In this case, a single device can handle a plurality of tubes 3, so that it is more visible to the patient than a treatment unit of a type in which the number of support arms provided above the table surface is equal to the number of tubes. Because there are few parts, there is almost no psychological adverse effect on the patient. When the device is not used, the arm 15 may be tilted from the standing position A to the reclining position B. In this case, the arm 15 and the support 30
Does not protrude, so that it does not interfere with other treatment operations, prevents a situation that interferes with other treatment operations, and is preferable in appearance.

FIGS. 6 and 7 show a tube support device S for a dental treatment tool according to a second embodiment. This is formed substantially in the same manner as in the first embodiment,
Unlike the first embodiment, an arm 40 is formed by a single rod, is inserted into a through-hole 41 of the holding member 20, is provided so as to be expandable and contractable by vertical movement, and is screwed to the holding member 20. The telescopic lock mechanism 43 is held at an appropriate telescopic position. In addition, the bearing 50
Is provided with a pair of fork-shaped bifurcated support plates 51 at the distal end of an arm 40, and a support shaft 52 having an axis perpendicular to the axis of the arm 40 is laid over the support plate 51. Bearing roller 5 for rolling tube 3 around support shaft 52
3 is provided. The guide portion 54 includes a pair of flange portions provided on the left and right outer peripheries of the support roller 53. Therefore, the same operation and effect as those of the first embodiment can be obtained by the tube support device S of the dental treatment tool according to the second embodiment.

In the above-described embodiment, the structure in which the support portion is rotatable around the axis of the arm is provided by providing the arm itself rotatably with respect to the holding member 20 of the mounting portion 10. However, the present invention is not necessarily limited to this. For example, as shown in FIG. 8, it may be rotatable with respect to the arm 15 via a bearing 60, and may be changed as appropriate. In this case, the support portion 30 rotates in response to the left and right movements of the tube 3, so that the followability is improved. Further, in the above-described embodiment, the attachment portion 10 is attached to the treatment table 4, but is not necessarily limited to this. The tube 3 is supported by the support portion above the dental treatment tool 2 during treatment. If so, it is needless to say that it may be attached to the attachable peripheral member 5 other than the table. Furthermore, it is a matter of course that the configuration of each unit is not limited to the above.

[0023]

As described above, according to the tube support apparatus for a dental treatment tool of the present invention, the mounting portion is attached to the peripheral member so that the tube is supported by the support portion above the dental treatment tool. If this is the case, the tube can be supported at a position higher than the position of the dental treatment tool being used at the time of treatment, and therefore, the weight of the tube can be shared and received by the support portion. The burden can be reduced, the operability of the dental treatment tool can be improved, and the treatment workability can be greatly improved. In addition, since a single device can handle a plurality of tubes, compared to a treatment unit of a type in which a plurality of tubes are provided above the table surface, there are fewer portions that can be seen by the patient, A situation that impairs the appearance can be suppressed, and the adverse psychological effect on the patient can be reduced accordingly. Furthermore, since the mounting portion is removable, it is not necessary to provide a special device in advance, so that it can be easily mounted on various existing dental working units, and can be introduced at low cost. The versatility can be greatly improved.

In the case where the arm can be extended and contracted in the axial direction so that it can be held at an appropriate telescopic position, the height position of the support portion can be adjusted. The tube can be supported at the optimal position in response to the above, the weight of the tube can be reliably shared between the bearings, further reducing the burden on the practitioner and improving the operability of the dental treatment tool. The treatment workability can be greatly improved.

Further, when the arm can be moved to the upright position and the recumbent position with respect to the mounting portion, when the dental treatment tool is not used, the arm can be positioned at the recline position and tilted. Therefore, it is difficult to interfere with other treatment operations, and the influence on other treatment operations can be eliminated. In addition, the appearance of the treatment unit when not in use can be improved.

Further, when the bearing is rotatable about the axis of the arm as a center axis, the moving direction of the tube back and forth can be made variable, and the degree of freedom of the mounting position of the device is increased. The tube can be supported in the optimal direction according to the treatment situation such as the position of the patient's face, and no extra force acts on the tube, reducing the burden on the practitioner and improving the operability of the dental treatment tool. The treatment workability can be greatly improved.

In the case where the bearing is constituted by a roller for rolling the tube, the moving direction of the tube back and forth can be made smooth, and the operability of the dental treatment tool can be improved accordingly. Therefore, the treatment workability can be greatly improved. Also, when the mounting part is manually rotated by the screw rod and the surrounding members are clamped by the clamping plate, the mounting is possible by manual operation.
The mounting workability is facilitated, and it can be easily mounted on various dental work units, so that the versatility can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a tube support device of a dental treatment tool according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a tube support device of the dental treatment tool according to the first embodiment of the present invention, together with an example of a dental treatment unit to which the tube support device is attached.

FIG. 3 is a front view showing a tube support device of the dental treatment tool according to the first embodiment of the present invention.

FIG. 4 is a side sectional view showing a tube support device of the dental treatment tool according to the first embodiment of the present invention.

FIG. 5 is a view showing a use state of the tube support device of the dental treatment tool according to the first embodiment of the present invention.

FIG. 6 is a perspective view showing a tube support device for a dental treatment tool according to a second embodiment of the present invention.

FIG. 7 is a sectional view of a main part showing a tube support device for a dental treatment tool according to a second embodiment of the present invention.

FIG. 8 is a main part view showing a modified example of the tube support device of the dental treatment tool according to the embodiment of the present invention.

FIG. 9 is a perspective view showing an example of a dental treatment unit.

FIG. 10 is a perspective view showing another example of the dental treatment unit.

[Explanation of symbols]

 S Tube support apparatus for dental treatment tool 1 Chair 2 Dental treatment tool 3 Tube 4 Treatment table 5 Peripheral member 5a Stationary part 10 Mounting part 11a Upper wall 11b Lower wall 11c Connection wall 12 Screw rod 13 Clamping plate 14 Operating body 15 Arm 15a Large-diameter pipe 15b Small-diameter rod 16 Telescopic lock mechanism 20 Holding member 20a Support shaft 21 Insertion hole 22 Rotation lock mechanism A Standing position B Recumbent position 24 Positioning mechanism 30 Support part 31 Support rod 32 Support shaft 33 Support roller 35 Guide part 36 Guide roller 40 Arm 41 Through hole 43 Telescopic locking mechanism 50 Supporting part 51 Support plate 52 Supporting shaft 53 Supporting roller 54 Guide part 60 Bearing

Claims (6)

(57) [Claims] An end is fixed to a peripheral member including a treatment table disposed near a chair for a patient, and the other end is connected to a dental treatment tool detachably locked to the peripheral member. And a tube support device for a dental treatment tool that supports a tube of the dental treatment tool that hangs substantially U-shaped below the treatment table surface when the dental treatment tool is used. A mounting portion which is mounted to the mounting portion, an arm provided on the mounting portion, an upright arm, a support portion provided on the arm for supporting the tube of the dental treatment tool so as to be able to move back and forth in the longitudinal direction thereof, and A guide device for regulating movement of a supported tube in the width direction, the tube supporting device for a dental treatment tool. 2. The tube support device for a dental treatment tool according to claim 1, further comprising a telescopic lock mechanism that makes the arm extendable and contractible in the axial direction and that holds the arm at an appropriate telescopic position. 3. A positioning mechanism for enabling the arm to move to two positions, a standing position and a recumbent position, with respect to the mounting portion, and a positioning mechanism for positioning the arm at the standing position and the recline position. 3. The tube support device for a dental treatment tool according to 1 or 2. 4. The tube support device for a dental treatment tool according to claim 1, wherein the support portion is rotatable about an axis of an arm as a center axis. 5. The bearing according to claim 1, wherein said support portion is constituted by a roller for rolling a tube.
A tube support device for a dental treatment tool according to the above. 6. A mounting section having a U-shaped cross section, comprising an upper side wall and a lower side wall which are opposed to each other with an interval larger than the thickness of the peripheral member to be mounted and can be positioned with the peripheral member interposed therebetween. A main body, a screw rod that is screwed to one of the upper side wall and the lower side wall of the mounting portion main body so as to be able to advance and retreat to the other side, and provided at one end of the screw rod and cooperating with one of the other sides. 6. The apparatus according to claim 1, further comprising a holding plate for holding said peripheral member, and an operating member provided at the other end of said screw rod for rotating said screw rod by manual operation. A tube support device for a dental treatment tool according to the above.