JPH0624832Y2 - Dental X-ray film developing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a dental X-ray film developing machine for developing a photographed dental X-ray film.

[Prior Art] In recent years, an X-ray image of a tooth has been used for diagnosis and treatment of the tooth. The X-ray image of the tooth for obtaining the X-ray image is an opaque dental X-ray containing an X-ray film. This is performed by bringing the film package into contact with the affected area in the oral cavity and irradiating it with X-rays. By this X-ray photography, a latent image of teeth is created on the X-ray film. After the completion of X-ray photography, the X-ray film package is taken out from the oral cavity, the X-ray film package is broken in a dark room or the like, and the X-ray film is taken out.
The taken-out X-ray film is subjected to development processing such as development, fixing, and washing with water, whereby an X-ray image of the tooth photographed on the X-ray film is obtained.

Various automatic developing machines have been conventionally proposed in order to perform the above-mentioned development processing easily without requiring labor. Most of them are equipped with a developing tank, a fixing tank, a water washing tank, etc., each of these tanks is provided with a large number of paired rollers, and each roller is rotated. By sandwiching it, it is structured so as to be sequentially transferred in a developing tank, a fixing tank, and a washing tank to perform a developing process.

[Problems to be solved by the invention]

Although the above-mentioned conventional automatic developing machines have various excellent advantages, they all have the drawbacks of complicated structure, large size, relatively many failures, and high manufacturing cost. there were.

An object of the present invention is to provide a dental X-ray film developing machine which can solve the above-mentioned drawbacks of the prior art, can be constructed in a simple structure and can be made small in size, can reduce failures, and can reduce the manufacturing cost. There is.

[Means for solving problems]

In order to achieve the above object, the present invention provides an annular space composed of a bottom wall, an outer peripheral wall, and an inner peripheral wall, a partition wall dividing the space into a plurality of chambers, and a rotary shaft driven by a drive source. An arm that has one end attached to the drive shaft and the other end located above the partition wall and moves along the space by the rotation of the rotation shaft, and the other end of the arm in the traveling direction of the arm. A dental X-ray film developing machine is configured by a support member that is rotatably engaged and extends into the space, and a mounting portion that is provided at a tip of the support member and on which a dental X-ray film is mounted. .

[Action]

A developing solution, a fixing solution, and the like are injected into each chamber partitioned by the partition wall. The dental X-ray film to be developed is mounted on the mounting portion of the support, the support is engaged with the arm, and the drive source is activated. As a result, the arm moves in space with the support. When the arm passes over the compartment wall,
The support member abuts on the upper end of the partition wall, rotates around the engaging portion with the arm, and gets over the partition wall to enter the next room. Therefore, the dental X-ray film also moves from one room to the next. In this way, the dental X-ray film is developed by sequentially moving the respective chambers.

〔Example〕

 Hereinafter, the present invention will be described with reference to the illustrated embodiments.

FIG. 1 is a plan view of a dental X-ray film developing machine according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II shown in FIG. In each figure, 1 indicates the developing machine of this embodiment. 2a
Is a circular bottom wall, 2b is a circular outer peripheral wall formed upright from the peripheral edge of the bottom wall 2a, and 2c is a circular inner peripheral wall formed inside the outer peripheral wall 2b by a predetermined distance. The bottom wall 2a, the outer peripheral wall 2b, and the inner peripheral wall 2c form an annular groove-shaped space. 3a, 3b, 3c and 3d are outer peripheral wall 2b and inner peripheral wall 2
It is a partition wall configured between c and each of the partition walls 3a to 3
d are provided at a predetermined distance from each other. By providing the partition walls 3a to 3d, the annular space becomes 4
It is divided into two chambers 4a, 4b, 4c and 4d.

Reference numeral 5 denotes a motor mounted on the bottom wall 2a in a cylindrical space formed by the bottom wall 2a and the inner peripheral wall 2c. 6 is a rotary shaft connected to the motor 5 directly or via a reduction gear,
7 is an arm which is fixed to the rotary shaft 6 and extends in a right angle direction, 7
a is a suspending portion formed at the tip of the arm 7. The tip of the arm 7, that is, the hanging portion 7a, is positioned above the annular space, approximately in the middle between the outer peripheral wall 2b and the inner peripheral wall 2c. 8a, 8b and 8c are the respective chambers 4a,
4b, 4c is a plug for closing the liquid discharge port provided at the lower part of the outer peripheral wall 2b. Reference numeral 10 indicates a support for supporting the dental X-ray film. The structure of the support 10 will be described with reference to FIGS. 3 (a) and 3 (b).

FIG. 3 (a) is a plan view of the support shown in FIG. 2, and FIG. 3 (b) is a sectional view taken along line IIIb-IIIb shown in FIG. 3 (a).
The support 10 is composed of a main body 10a, a hole 10b provided at one end of the main body 10a, and a film mounting portion 10c at the other end of the main body 10a. The film mounting portion 10c is formed into two forks as shown in FIG. 3 (a), and the inner edge of these forks is shown in FIG.
A groove 10d is formed as shown in (b). The dental X-ray film F is supported by the support 10 by inserting the dental X-ray film F into the groove 10d from the tip of the film mounting portion 10c.

Here, the electric circuit of the motor 5 which is the drive source of the developing machine 1 of the present embodiment will be described with reference to the drawings.

FIG. 4 is an electric circuit diagram for driving the motor 5. In the figure,
Reference numeral 5 is a motor shown in FIGS. 1 and 2, 12 is a power source, 13 is an automatic reset type push button switch that returns to its original position when the hand is released, and 14 is a cam. The cam 14 is connected to an appropriate rotating portion such as the rotating shaft of the motor 5, the speed reducer, and the rotating shaft 6 and performs the same rotation as the rotating shaft 6. Reference numeral 14a indicates a recess formed in the cam 14. Reference numeral 15 is a micro switch, and 15a is an actuator of the micro switch 15. The actuator 15a is the recess 14a of the cam 14.
The micro switch 15 is turned off when the switch is on, and the micro switch 15 is turned on when the switch is out of the recess 14a.
The push button switch 13 and the micro switch 15 are connected in parallel. The push button switch 13 is mounted on the cam 14 and the micro switch 15 is mounted on the developing machine 1 at an appropriate position. When the motor is an AC motor, the power source naturally becomes an AC power source.

Next, a developing process using the developing machine of this embodiment will be described with reference to the electric circuit diagram shown in FIG. 4 and the operation explanatory diagram shown in FIG. Note that FIG. 5 is a diagram in which each chamber arranged in an annular shape is developed on a plane. In the development process, first,
As shown, the developing solution S ₁ is in the chamber 4a, the fixing solution S ₂ is in the chamber 4b, and the washing solution S ₃ is in the chamber 4c (not shown).
Is injected, and the chamber 4d is left as a space. Further, the photographed X-ray film is taken out from the dental X-ray film package, inserted into the groove 10d of the support 10 and supported, and the hole 10b of the support 10 is inserted into the arm 10 as shown in FIG. 7
By hanging on the hook of the hanging part 7a of the support 10
Is hung on the tip of the arm 7. As will be described later, the arm 7 is set to the position shown in FIG. 1, that is, the position close to the partition wall 3a of the chamber 4a at the start of development. Therefore, the dental X-ray film F is in the developer when the support 10 is first hung on the hanging portion 7a as described above.

If the push button switch 13 is pressed immediately from this state,
Electric current is supplied to the motor 5, and the motor 5 starts rotating. The rotation of the motor 5 causes the rotation shaft 6 to rotate, and the arm 7 starts moving along substantially the center of the chamber 4a.
The dental X-ray film F mounted on the film mounting portion 10c of the support 10 also moves in the developing solution S ₁ . On the other hand, the cam 14 also rotates in the direction of the arrow in synchronism with the rotation of the rotary shaft 6, and the actuator 15a moves the recess 14a of the cam 14 in a short time after the rotation starts.
Get out of. As a result, the microswitch 15 that was in the OFF state is turned ON. Therefore, the pushbutton switch 13
Press for a short time, release your hand, and turn off pushbutton switch 13.
Even after that, since the micro switch 15 is turned on thereafter, the rotation of the motor 5 is continued, and the dental X-ray film F connected to the arm 7 through the support body 10 has a developing solution as shown in FIG. Move in S ₁ in the direction of the arrow. During this movement, the dental X-ray film F is developed.

When the dental X-ray film F approaches the partition wall 3b, the support
The film mounting portion 10c of 10 abuts on the inclined surface 2a ¹ formed on the bottom wall 2a of the chamber 4a, and the inclined surface 2a ¹ causes the arm 7 to move.
As the carriage moves, the supporting body 10 rotates around the hanging portion 7a and is lifted upward, and finally rides on the partition wall 3b in the state shown by the dotted line. When the arm 7 further moves, the film mounting portion 10c rides on the partition wall 3b and then crosses over it. At this moment, the support 10 is the hanging part 7.
Rotate downward about a, and the film mounting portion 10c is in the chamber 4b.
Falls into the fixing solution S _2, the dental X-ray film F enters into the fixer S _2. After that, as the arm 7 moves, the dental X-ray film F moves in the fixer S _{2 and} is fixed.

In the same manner, the dental X-ray film F is shifted from chamber 4b into the chamber 4c, enters into washing solution S _3, the washing during the moving in the washing liquid S ₃ is performed. Further, the dental X-ray film F passes from chamber 4c into chamber 4d, dropping the washing solution S ₃ attached to the surface while passing therethrough.

When the rotary shaft 6 makes one revolution and returns to the original position, the actuator 15a of the micro switch 15 is moved to the cam position as shown in FIG.
It falls into the recess 14a of 14 and the microswitch 15 is turned off. Therefore, the motor 5 stops, and the rotating shaft 6 and the arm 7 also stop. At this time, the arm 7 has returned to the movement start position shown in FIG. Since this position is close to the partition wall 3a as described above, the support 10 is in the state shown by the dotted line in FIG. 5, that is, in the state of riding on the partition wall 3a. When the support 10 is removed from the arm 7 and the dental X-ray film F is removed from the film mounting portion 10c of the support 10,
The dental X-ray film F is in a state where the developing process is completed, and the X-ray image of the tooth appears there.

In the above description of the embodiment, four chambers are provided, and the developing solution, the fixing solution, and the washing solution are sequentially injected, and the last chamber is a space. However, the present invention is not limited to this, and, for example, a space may be used. It is also possible to have three chambers except the above chamber, or to have four chambers and inject a developing solution, a washing solution, a fixing solution and a washing solution in order. Further, it is also possible to provide two chambers and inject a developing solution and a fixing solution into each chamber, and wash with water outside. Further, it is also possible to form a space chamber and provide a heater there to form a drying chamber.

Further, the structure of the support is not limited to the structure shown in the above embodiment, but various structures are used. The point is that the dental X-ray film can be detachably and surely supported. In addition, it suffices if the engaging portion with the arm is rotatable in the traveling direction.

Further, in the description of the above-mentioned embodiment, the structure in the case where the developing machine is placed in a dark room is explained, but in order to make this structure a dark box structure, a cover is provided on the upper part of the developing machine of the above-mentioned embodiment. Is attached to form a dark box, and this cover is provided with a hand insertion port so that external light does not enter. The structure of such an insertion port is well known. In such a dark box developing machine, the dental X-ray film packaging body is put into the developing machine which is a dark box as it is after photographing, and the dental X-ray film is taken out by hand in a groping state. This is to be attached to a support and the work of hanging this support on an arm is performed.

Further, in the description of the above-mentioned embodiments, an example in which a motor is used as a drive source has been described, but various drive sources can be used, such as, for example, one utilizing the stored force of a spring. or,
The space may be, for example, a polygonal ring, instead of the ring. Furthermore, the inclined surface of the bottom wall of the chamber is not always necessary.

[Effect of device]

As described above, in the present invention, the bottom wall, the outer peripheral wall, and the inner peripheral wall form an annular space, the space is divided into a plurality of chambers, and the tip of the arm is moved along the annular space by the drive source. At the same time, since the support body having the dental X-ray film mounted thereon is rotatably engaged in the traveling direction, the structure is simple and the overall size can be made small. The cost can be reduced and it is convenient to carry and install.

[Brief description of drawings]

1 and 2 are respectively a plan view and a sectional view of a dental X-ray film developing machine according to an embodiment of the present invention, and FIG.
2 (a) and 2 (b) are respectively a plan view and a sectional view of the support shown in FIG. 2, FIG. 4 is a circuit diagram of a motor drive circuit shown in FIGS. 1 and 2, and FIG. FIG. 6 is an explanatory view of the operation of the dental X-ray film developing machine shown in FIGS. 1 ... Dental X-ray film developing machine, 2a ... Bottom wall, 2b
…… Outer peripheral wall 2c …… Inner peripheral wall 3a, 3b, 3c, 3d
... partition walls 4a, 4b, 4c, 4d ... chamber, 5 ... motor, 6 ... rotary shaft, 7 ... arm, 10 ... support

Claims (1)

[Scope of utility model registration request] 1. An annular space composed of a bottom wall, an outer peripheral wall and an inner peripheral wall, a partition wall dividing the space into a plurality of chambers, a rotary shaft driven by a drive source, and one end of the drive shaft. Attached to the arm, the other end of which is located above the partition wall and which moves along the space by the rotation of the rotation shaft, and the other end of which is rotatably engaged in the traveling direction of the arm. A dental X-ray film developing machine, comprising: a support member extending into the space; and a mounting unit provided at a tip of the support member for mounting a dental X-ray film.