JPH0215470Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a handpiece storage unit for storing a handpiece such as an air turbine used by a dentist to grind cavities, etc. of a patient's tooth.

Traditionally, dental patients have been afraid of having cavities, etc., ground into their teeth, and have tended to become fearful just by looking at the handpiece and resist treatment.

One of the purposes of the present invention is to store the handpiece in the storage unit and close the lid so that the handpiece cannot be seen by the patient, thereby preventing the patient from fearing treatment.

Furthermore, when the lid is opened, the handpiece is placed on top of the lid, and the power transmission member such as the hose is pulled out without much resistance to perform treatment, and the handpiece is placed on the lid. For example, another purpose is to make the work easier by automatically retracting the power transmission member.

Furthermore, even when the lid is closed, the length of the hanging power transmission member does not change, the handpiece is securely held in the lid, and cleaning up after treatment can be done with the simple operation of closing the lid. It is intended for other purposes.

A case will be described in which a handpiece storage unit embodying the present invention, a dental chair, and a spittoon castella unit are combined into a set.

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 the first arm 21 of the link mechanism is pivotally connected to the shaft 20 provided in the substantially horizontal direction of the shaft 5 on the seat plate 1, and a first arm 21 pivotally supported on the support shaft 22 of the sub-frame 6 is attached to the other end. 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 pivotally connected to the support shaft 25 of 1 is connected to the pin 2
Connect with 7.

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 small at first, but becomes larger as the tip progresses, 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 holder 41 having a groove 40 for supporting an auto-cup filler 39 for oral cleaning is pivotally attached to the holder, and the support frame 37 and the support rod 38 form a parallel link, and the support frame 37 is attached to the main stand 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 the support shaft 35, and a nut 46 screwed into the key rod 43 is rotated.By adjusting the tension of the nut 46, the tilt of the support frame 37 is 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.

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 heavy stud 56 is slidably inserted into the housing 50, and one end thereof is connected to the connecting part 53. A switch 57 is provided on the front of the housing 50 to enable the connection of 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. By moving up and down, the guide roller 74 is displaced, 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 heavy shaft 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 handpiece 54 can be freely pulled out and used.

When the heavy chuck 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 attached to the lid 62 by a shaft 77 and is biased toward the lid 62 by a coiled spring 75. and the housing 50
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 distal end 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 closed. In this embodiment, 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 lid plate 100 supporting the tip of the lid 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
is provided.

Two parallel arms 12 are provided on the top surface of the housing 50.
0 and 121 are pivotally connected, and the other ends of the two parallel arms 120 and 121 are pivotally connected to the lower surface of the tray 122. By the rotation of the parallel arms 120 and 121, the tray 122 is attached to the housing 50. The top can be moved back and forth.

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 mentioned above, in the present invention, when the lid is in the open state, the lid is raised by the two arms, becomes horizontal and protrudes from the top of the lid, and the lid is placed on the top surface. The handpiece appears in a state where the holding member is placed in a certain position, and the holding member becomes separated from the handpiece.

Therefore, the handpiece can be easily removed, but when the handpiece is moved closer to the patient's affected area, power transmission members such as hoses and electrical cords are pulled out against the weight of the heavy hammer. Treatment is performed using a handpiece.

The power transmission member is constantly being pulled by the weight of the heavy plow, so if you move the handpiece or place it on the lid, the power transmission member may loosen in your hand or near the handpiece. This does not make treatment difficult.

When the work is finished, when the lid is closed, the lid lowers and rises to cover the casing, and the lid holds the handpiece while being pressed by the holding member on its inner surface. Since the handpiece is hidden from the patient's view, the patient does not have to worry about the treatment.

Furthermore, since the handpiece is pressed against the lid by the holding member, it will not fall off from the lid and will be held securely.

In addition, since the power transmission member is suspended with a heavy peg, it is always in a hanging state, but the position of the handpiece changes as the lid rises and moves horizontally when the lid is opened, and as it moves downwards and rises when it is closed. However, since the guide member works in conjunction with the opening and closing of the lid to keep the amount of droop of the power transmission member approximately constant when the lid is opened and closed, the power transmission member may touch the floor or catch feet. Not only can you prevent this from happening, but you can also maintain a good appearance.

In this way, this invention not only helps reduce patients' fear of treatment, but also improves the efficiency of treatment using a handpiece, and contributes to the beautification of the clinic room, among other benefits. It is effective.

[Brief explanation of the drawing]

The drawings show a set of a handpiece storage unit implementing the present invention, a dental chair, and a spittoon castor unit. Figure 1 is a perspective view of the unit, and Figure 2 is a view of the front of the chair. A front view of the undulating extension and contraction mechanism, FIG. 3 is a side view thereof, FIG. 4 is a bottom view thereof, FIG. 5 is a front view of the auto-cup filler holding section for the assistant, and FIG. 6 is a partial oblique view thereof.
FIG. 7 is a perspective view of a handpiece storage unit according to the present invention, FIG. 8 is a side view of one embodiment of the present invention, and FIGS. 9 and 10 are side views of other embodiments of the present invention. , FIG. 11 is a plan view of the tray section, and the chain line in the figure indicates the operating state. 50... Housing, 53... Connection portion, 54... Hand piece, 55... Power transmission member, 56... Heavy joist, 60, 61... Arm, 62... Lid body, 66
...Bedroom, 74...Guide roller, 75...Wrap spring, 76...Holding member, 82, 83...Arm, 100...Lid plate, 107...Arm.

Claims (1)

[Scope of utility model registration request] A lid body is provided with a resting place for placing a hand piece such as an air turbine connected to a power transmission member such as a hose connected to a connection part inside the housing, and the lid body opens an opening of the housing. When the lid is closed, the lid rises and moves forward, and there are two arms connecting the lid and the casing so that the lid is in a horizontal state, a heavy peg movably suspended on the power transmission member, and a lid a guide member that moves in conjunction with the opening and closing of the lid so that the amount of droop of the power transmission member due to the heavy plow is approximately the same when the lid is opened and closed; and a handpiece that is pushed by a biasing member when the lid is raised. 1. A lid device for a handpiece storage unit, comprising a holding member that presses against the rest of the lid and is isolated from above the handpiece in connection with opening and closing of the lid.