JPH0214850B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for storing a hand piece used in dental treatment, such as an air turbine for grinding cavities, and placing the hand piece near the head of a patient sitting in a dental chair. This invention relates to a dental handpiece storage unit for pulling out handpieces and performing dental treatment.

That is, in the dental handpiece storage unit of the present invention, when the handpiece is not used, the housing is closed with a lid so that the handpiece is not visible, but when the lid is opened, the handpiece is placed on the lid. The handpiece is pulled out in the closed state, the handpiece is pulled out to treat the patient, and after the treatment is performed, the handpiece is placed on the lid body, thereby transmitting power to the handpiece. The transmission member is automatically retracted, and the handpiece is stored in the housing by closing the lid.

By doing so, the present invention eliminates the fear of dental treatment from the patient because the handpiece is not visible when the patient sits on the chair, and the dentist can easily align the handpiece. The handpiece can be taken out and used as is, which simplifies treatment preparation work and improves usability.Furthermore, once treatment is finished, the handpiece can be easily organized by closing the lid. Since the handpiece can be stored, cleaning up afterward is simplified and the time taken is also shortened.Moreover, the transmission of power such as air and electricity to the handpiece is controlled by a switch installed in the housing. The primary purpose of this system is to speed up the treatment and improve the ease of operation.

Furthermore, in the present invention, a tray on which dental instruments for treatment such as handpiece replacement tools and disinfectants are placed is placed on the top of the housing, and this tray is moved back and forth so that the dental instruments can be easily accessed. The second purpose is to make dental treatment easier to perform by making it easier to perform dental treatment.

An embodiment of the present invention will now be described as a set with a dental chair.

A is a dental chair, the seat plate 1 of which can be moved up and down freely by the undulating legs 2 rising and falling with respect to the installation part 2a, and the backrest 3 at the rear edge of the seat plate 1.
is provided so that it can be raised and lowered by a power device (not shown).

A front sagging frame 4 is pivotally attached to the front edge of the seat plate 1 with a shaft 5, and a sub-frame 6 fixed to the front sagging frame 4 and a shaft 7 pivotally supported on the seat plate 1 are provided. An extensible cylinder 8 operated by compressed air is attached, and when the cylinder 8 is expanded due to the positional relationship between the shafts 5 and 7, the tip of the front sagging frame 4 will be moved as shown by the chain line in FIG. When the cylinder 8 is moved upward and the cylinder 8 is contracted, the cylinder 8 is moved downward.

A rail 9 is provided on the sub-frame 6, and the rail 9
The moving frame 11 is attached to the guide 10 that moves within the frame, and the moving frame 11 is attached to the front sagging frame 4.
can move back and forth, and a spring 14 is stretched between the pin 12 of the movable frame 11 and the pin 13 of the front sagging frame 4, so that the movable frame 1
When the moving frame 1 moves forward of the front sagging frame 4, a force is applied to pull the moving frame 11 back.

Further, a roller 15 is installed on the movable frame 11, a belt 17 wound around a spring roller 16 attached to the front sagging frame 4 is attached to one end of the sheet 18, and the sheet 18 is passed over the roller 15 and folded back. It is attached to the front end of the front sagging frame 4 in such a manner that

Therefore, when the movable frame 11 extends forward as shown by the chain line in FIG. The sheet 18 is stretched between the two, and the front sagging frame 4 is extended.

When the movable frame 11 moves in the opposite direction, the spring roller 16 winds up the belt 17, the sheet 18 moves to the back side, and the front sagging frame 4 is reduced.

Furthermore, one end of a first arm 21 having a link structure is pivotally attached to a shaft 20 provided in the substantially horizontal direction of the shaft 5 on the seat plate 1, and a first arm 21 having a link structure is pivotally attached to the other end of the first arm 21, which is pivotally supported on a support shaft 22 of a sub-frame 6. One end of the second arm 23 is connected with a pin 24, and the other end of the second arm 23 is connected to the moving frame 1.
The third arm 26 is pivotally connected to the support shaft 25 of the third arm 27
Connect with.

Therefore, by expanding the cylinder 8,
When the tip of the front sagging frame 4 rises, the distance between the shaft 20 and the support shaft 22 of the sub-frame 6 becomes longer, so the second arm 23 rotates around the support shaft 22, and the distance increases. is enlarged and transmitted to the third arm 26 to move the movable frame 11 forward.

Since the shaft 20 and the axis 5 of the front sagging frame 4 are located approximately horizontally, the distance between the shaft 20 and the support shaft 22 is initially equal to The rotation of the second arm 23 is made to be small at first and then gradually increase, since it hardly increases, and increases as the tip progresses to rise, and reaches its maximum just before the end.

Therefore, the forward movement of the movable frame 11 is slow, and its speed gradually increases, and when the front end of the forward sagging frame 4 descends, the opposite is true, and therefore it is in a vertical state. Even if the distance between the lower end of the front sag frame 4 and the floor is reduced, even if the movable frame 11 moves forward and the front sag extends, the sheet 18 mounted on the rollers 15 will not touch the floor. The height of the seat plate 1 can be lowered to make it easier for the patient to sit.

In this way, this dental chair can be used for upright treatment with the backrest 3 and front sagging frame 4 erect, with the patient seated and the doctor standing, and for both the backrest 3 and front sagging frame 4 facing down. It is possible to perform both seated medical treatment, in which the patient is laid down and the doctor is seated.

Also, when performing this sitting position treatment, the front droop frame 4
As the patient falls down, the movable frame 11 is moved to increase the length of the front sagging part, supporting the patient's heel area to gradually reduce the patient's sleeping comfort and fatigue.

Reference numeral B is a spittoon castor unit installed on one side of the dental chair A, and there is a spout holder 31 on the top surface of the main table 30, and the water from the faucet 32 installed at one corner of the spout holder 31 is connected to the spout holder 31. It is received by a cup placed on a receiver 31, and a drainage bowl 33 is provided on the top surface of the main stand 30, into which dirty water or gargling water is disposed.

An arm rod 34 is protruded from one side of the main stand 30, and two support shafts 35 and 36 are provided on this, one end of a support frame 37 and a support rod 38 are pivotally attached, and the other end is pivoted. A support base 41 having a groove 40 for supporting an autocup filler 39 for oral cleaning is pivotally attached to the support frame 37 and the support rod 38 form a parallel link, and the support frame 37 is attached to the main base 30. Even when tilted, the mounting base 4
1 always remains horizontal.

The auto-cup filler 39 is formed by a water injection nozzle for injecting water into the patient's oral cavity in order for an assistant to clean the patient's oral cavity, a drainage suction nozzle for injecting water into the oral cavity, and a drainage suction nozzle for sucking up saliva, etc. Flexible tubes 46 such as a water supply tube for supplying water and a vacuum tube for suction are connected to these, respectively.

A spring 43 is stretched between the pin 42 of the support rod 38 and the support shaft 36, and when the support frame 37 is tilted with respect to the main stand 30, the tension of the spring 43 causes the support frame 3 to
7 so that it is held at that angle.

Therefore, the support frame 37 is tilted to bring the holder 41 closer to the patient's head, and the autocup filler 39 is moved from the holder 41 to the patient's head.
The device is used to perform operations such as removing the patient's mouth, pouring cleansing water into the patient's oral cavity, and sucking up saliva.

In order to keep the tension of the spring 43 appropriate,
A key rod 44 on which one end of a spring 43 is suspended is inserted into a support shaft 35, and a nut 46 screwed into the key rod 43 is rotated. This is to ensure that the angle is maintained.

A water supply pipe connected to the auto cup filler 39,
A flexible pipe 46 such as a drain pipe is connected to the main stand 30 and the dental chair A.
It passes through the inside of the undulating leg part 2 and is connected to a water supply and drainage pipe installed on the floor surface.

C is a dental handpiece storage unit, and its housing 50 is attached to the armrest 2 of the dental chair A.
It is rotatably attached to the support 29 of the dental chair A, and is attached to an arm rod 52 whose direction and distance can be adjusted at an intermediate joint 51, and moves up and down as the seat plate 1 of the dental chair A moves up and down. 51, it can be moved closer to or farther away from the patient's head.

Inside this housing 50, there is a connection part 53 that is connected to high-pressure air and a power supply installed on the floor through the armrest 52 and the undulating leg part 2 of the dental chair A. A flexible power transmission member 5 such as a flexible tube or electric wire connected to the hand piece 54 of
A weight 56 is slidably inserted into the housing 50, and one end of the weight 56 is connected to the connection part 53.A switch 57 is provided on the front of the casing 50, which can cut and shut off the high-pressure air and current from the power supply. , the handpiece 54 is operated to perform treatments such as polishing cavities.

A lid body 62 is attached to the other end of arms 60 and 61, which are pivotally supported at one end by support pins 58 and 59, respectively, on the casing 50.
is pivotally supported by support pins 63 and 64, and when the lid is closed, the bottom surface of the lid body 62 covers the front opening of the housing 50.
When opening the lid using a handle 65 fixed to the lid 62, the lower end of the lid 62 rises and the lid is opened so that its inner surface becomes the upper surface.

A sleeping area 66 is provided on the inner surface of the lid body 62, and the hand piece 54 is placed on this area.
By opening and closing the lid 62 as described above, when the lid is opened, the hand piece 54 appears placed thereon, and when the lid is closed, the hand piece 54 is hidden by the lid 62 and housed in the housing 50. be done.

The pin 73 of the rotating rod 72, which is pivotally connected to the housing 50 by the support pin 71, is inserted into the long hole 70 of the locking rod 69, which is pivotally supported to the arms 60, 61 by pins 67.
When opening 2, the locking rod 69 rises as the arms 60, 61 rotate, and the pin 73 slides inside the elongated hole 70. Near the end, the end of the elongated hole 70 touches the pin 73. When the lid is closed, the rotating rod 72 rotates and its lower end is raised, and when the lid is closed, the rotating rod 72 operates in the opposite manner.

A guide roller 74 is arranged in a row at the lower end of the rotating rod 72, and the power transmission member 55 leading to the hand piece 54 is passed over the guide roller 74 and connected to the connection part 53. The guide roller 74 is displaced by moving up and down, and the displacement absorbs the path difference of the power transmission member 55 when opening and closing the lid of the hand piece 54, and the power transmission member 55 is moved by the weight 56. Keeping the hanging length the same when opening and closing the lid, the power transmission member 55
prevent it from coming into contact with the floor.

A holding member 76 that is always urged by a coiled spring 75 is pivotally attached to the lid body 62 on a shaft 77, and when the lid is closed, the holding member 76 is pressed onto the hand piece 54 by the urging of the coiled spring 75. The hand piece 54 is held within the recess 66 of the lid body 62, and when the lid is opened, the engaging portion 78 of the holding member 76 engages with the locking portion 79 of the locking rod 69, and the holding member 76 holds the hand piece 5.
4, and the hand piece 54 can be freely pulled out and used.

When the weight 56 pulls out the handpiece 54,
It moves on the power transmission member 55 and can be pulled out, but when the handpiece 54 is placed on the bed 66, the power transmission member 55 is pulled in by its weight.

FIG. 9 shows an embodiment in which the lid 62 is opened and closed using air pressure.

The lid body 62 is pivotally connected to support pins 84 and 85 of arms 82 and 83 which are pivotally connected to the housing 50 using support pins 80 and 81, and the lid body 62 is pivotally connected to support pins 84 and 85 of arms 82 and 83 which are pivotally connected to the housing 50 using support pins 80 and 81.
A cylinder 88 operated by compressed air is installed between the support shaft 87 of the arm 8 and the arm 8.
3 rotates around the support pin 81, and along with this, the arm 82 also rotates around the support pin 80,
Shift the lid body 62 to the state shown by the chain line in FIG.
2 and the handpiece 54 placed on it.
is exposed and can be used.

When the air inside the cylinder 88 is released, the operation is reversed to that described above, and the lid body 62 is closed and the hand piece 5 is closed.
4 is stored.

Pin 89 on arm 82 and pin 90 on housing 50
A roller 94 is installed at the lower end of the arm 93 which is supported by the pin 92 of the arm 91 which is supported by the
Similar to the roller 74 in the previous embodiment, the hanging lengths of the power transmission member 55 when the lid is opened and closed are made to be approximately the same length.

Also in this embodiment, the holding member 76 is pivotally connected to the lid 62 by a shaft 77, and is biased toward the lid 62 by a coiled spring 75. and housing 5
The tip of the release arm 95 fixed to the side surface of the holding member 76 corresponds to the base of the holding member 76. Therefore, when the lid body 62 is opened, the base of the holding member 76 comes into contact with the tip of the release arm 95, so that the holding member 76
is rotated to release the hold on the handpiece.

In FIG. 10, the lid 62 is opened and closed using pneumatic pressure, and a second lid plate 100 is further provided on the outside of the lid 62, and this lid plate 100 supports the lid 62 when the lid 62 is opened. This is an embodiment in which the outer surface of the lid body 62 is covered when the lid is closed, thereby improving the appearance.

The lid plate 100 has its support arm 103 pivotally supported on a support pin 102 provided on a support arm 101 of the casing 50, and its support arm 105 is pivotally supported on a support pin 104 of the lid body 62.

The lid body 62 is pivotally connected to a pin 108 of an arm 107 that is pivotally supported by a support pin 106 of the casing 50, and is operated by compressed air between a support shaft 109 of the arm 107 and a support shaft 110 of the casing 50. When the cylinder 111 is installed and compressed air is introduced into the cylinder 111 and the cylinder 111 is extended, the arm 107
rotates around the support pin 106, and the lid body 62,
When the cover plate 100 is moved to the position shown by the chain line in FIG. 10, the arm 107 etc. is damaged when a downward force is applied, such as by accidentally touching the tip of the cover body 62 while trying to remove the handpiece 54. This is prevented by the cover plate 100 supporting the tip of the cover body 62.

When the cylinder 111 contracts due to the release of the air pressure inside the cylinder 111, the operation opposite to the above is performed, and the lid body 62 and the lid plate 1 are moved as shown by the solid line in FIG.
00 has overlapping lid closing positions, giving it a good appearance when the lid is closed.

Arm 11 pivoted to housing 50 with pin 112
A roller 74 similar to the previous embodiment is attached to the lower end of 3, and a pin 114,
At 115, the sub arm 116 is attached, and the position of the roller 74 is shifted in relation to the opening/closing operation of the lid body 62,
It is the same as in the previous embodiment that the lengths of the power transmission members 55 when opening and closing the lid are made substantially the same.

Also, in this embodiment, as in the embodiment shown in FIG. 9, the holding member 76 and the release arm 95 are
and is provided.

On the upper surface of the housing 50, two parallel arms 120,
One end of 121 is pivotally connected, and the two parallel arms 12
The other end of 0,121 is pivotally attached to the lower surface of the tray 122, and by the rotation of the parallel arms 120,121,
The tray 122 can be moved back and forth on the housing 50.

On the upper surface of the tray 122 are a tool stand 124 on which a replacement tool 123 for the hand piece 54 is placed, a storage rack 126 for storing a medicine bottle 125, and a top plate portion 12.
A syringe 129 and a waste container 130 are attached to a rod 128 on the side, and by moving the tray 122 back and forth, the doctor can access these instruments and accessory parts. It is something that can be easily obtained.

In the figure, 131 is a dentalite, and 132 is its support arm.

As described above, the present invention eliminates fear from the patient during treatment because the handpiece used for patient treatment is stored in the housing while being placed on the lid and is not visible to the patient. When performing treatment, the handpiece is exposed by opening the lid, the handpiece is held, the power transmission member is pulled out, and the power transmission member is installed on the front of the housing. Since the handpiece can be operated with a switch to perform treatment, the doctor can perform the treatment while sitting and does not have to move, reducing doctor fatigue and improving work efficiency.

When you finish using the handpiece and place it on the lid, the power transmission member is automatically drawn into the housing by the weight suspended from it, so you can easily organize the handpiece and the power transmission member. are stored simultaneously.

Furthermore, when the lid is closed, the handpiece is held on the lid by the holding member, so there is no risk of it falling off the lid, and the power transmission member is a guide member whether the lid is opened or closed. Since they hang down at approximately the same length, there is no need to worry about the power transmission member touching the floor or getting your feet caught on it, and the handpiece can be stored only by closing the lid, making treatment easier. This has the advantage that the work and time required for cleaning up afterwards can be significantly shortened.

In addition, handpiece replacement tools, dental instruments,
The tray on which accessory parts are placed can be moved back and forth on the housing, allowing doctors to hold them while sitting, further increasing medical efficiency and reducing doctor fatigue. It is also useful for reducing

[Brief explanation of drawings]

Fig. 1 is a perspective view of a dental chair unit equipped with the dental handpiece storage unit of the present invention and the spittoon castra unit, Fig. 2 is a front view of the elevating and retracting device of the front sloping part of the chair, and Fig. 3 is a side view of the same, FIG. 4 is a bottom view of the same, FIG. 5 is a front view of the auto-cup filler holder for an assistant, FIG. 6 is a partial perspective view thereof, and FIG. 7 is an embodiment of the present invention. FIG. 8 is a side view of the lid opening/closing mechanism, FIGS. 9 and 10 are side views of other embodiments of the lid opening/closing mechanism, and FIG. 11 is a plan view of the tray. In the figure, the dashed line indicates the operating state. 50... Housing, 53... Connection portion, 54... Hand piece, 55... Power transmission member, 56... Weight, 57... Switch, 62... Lid, 74...
Guide roller, 76...holding member, 123...tray.

Claims (1)

[Scope of Claims] 1. A casing, a lid body which is attached to the casing so as to be openable and closable, and which serves as a lid of the casing when closed and on which a dental handpiece is placed when opened; a connection portion that connects a power transmission member that transmits power to the handpiece; a weight suspended on the power transmission member to draw the power transmission member into a housing;
a guide member that moves up and down in conjunction with the opening and closing of the lid and maintains a constant hanging amount of the power transmission member by the weight regardless of whether the lid is opened or closed; A dental hand comprising: a holding member that presses and holds a handpiece placed on the housing toward a lid; and a switch installed on a housing that opens and closes power to the handpiece. Piece storage unit. 2. The dental handpiece storage unit according to claim 1, wherein a tray is installed on the casing on which dental instruments such as handpiece replacement tools can be placed and can be moved back and forth on the casing.