JP3241692U - tablet extractor - Google Patents

Abstract

An object of the present invention is to provide a tablet ejector that is compact and easy to operate. A table portion 4 having a hole portion 4a on which a packaging sheet 3 in which tablets 2 are packed is placed on the upper surface and the extruded tablets fall downward, and the table portion is vertically movable above the hole portion of the table portion. It consists of a rod-shaped tablet push-out rod 5 provided vertically and a vertical movement mechanism 6 for moving the rod up and down. is screwed into the screw hole of the rod support part 8 fixed to the table part, and the tablet push-out rod is configured to move up and down with respect to the table part by rotating forward and backward. The drive mechanism consists of a rotating motor 10, a rotating pulley 9 fixed to a tablet pushing rod, a transmission pulley 11 fixed to a vertical output shaft 10a of the rotating motor, and a rotation suspended between the rotating pulley and the transmission pulley. It consists of a transmission belt 12 . [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a device for taking out tablets from a packaging sheet in which a plurality of tablets such as drugs are packaged.

Tablets are sandwiched between, for example, plastic and aluminum, and formed into a sheet-like PCP packaging sheet. When the plastic part is strongly pressed, the aluminum part breaks and the tablets inside are taken out one by one.

When the peeling force for removing the tablet from this packaging sheet was measured as a static force, it was about 3 to 4 kgfmax, depending on the type.
However, it is not limited to the load.

Since it takes a lot of force to take out the tablets from the packaging sheet, there are commercially available tablet extractors that use a manual device to take out the tablets.

Tablet dispensers currently on the market include a stapler type and a type in which a sliding rod is pressurized from above by an impact force.

For example, Patent Document 1 discloses a stapler-type tablet extractor.

Utility Model Registration No. 3070780

However, most of the people who want to use the above-mentioned conventional tablet ejectors are mostly elderly people. Such people need medicine because they have various symptoms in their bodies. And the people who have been prescribed medicines from pharmacies should not want to move their bodies as much as possible.

However, some of these prescribed medicines are handled in several types, and it is very difficult to take out one or two tablets from the packaging sheet. In addition, there are several types of drugs prescribed by a doctor depending on the symptoms, and depending on the symptoms, the patient may be instructed to take three times a day instead of once a day.

That's why the tablet extractor exists. However, the structural mechanism of the tablet ejector is a burden on the user. At the timing of taking this task each time, the tablets must be prepared by peeling them from the paving sheet. However, the stapler type has a structure that forces the driving load of the lever, so the burden is immediately applied to the fingers. In addition, the pressurization type has to move the arm up and down, which puts a burden on the arm during work.

Therefore, that task using current extractors is difficult for the patient.

The present invention electrifies the mechanism for taking out tablets from the packaging sheet, makes it a mechanism that does not put a burden on the user's arm and does not require heavy work, and makes the take-out device as small as possible to make the operation easy and simple in structure. And the price is also cheap to develop.

The tablet extractor of the present invention includes a table portion having a hole on the upper surface of which a packaging sheet in which tablets are packaged is placed and the extruded tablets drop downward, and the table portion moves up and down above the hole. It consists of a vertically installed rod-shaped tablet push-out rod and a vertical movement mechanism for moving the rod up and down. Above the table portion, it is screwed into a screw hole of a rod support portion fixed to the table portion. The vertical movement mechanism includes a rotary motor, a rotary pulley fixed to the tablet push-out rod, a transmission pulley fixed to a vertical output shaft of the rotary motor, and the It is characterized by comprising a rotation transmission belt suspended between a rotation pulley and the transmission pulley.

The rotation pulley and the transmission pulley are arranged so that the rotation transmission belt can move up and down relative to at least one of the rotation pulley and the transmission pulley when the rod moves up and down. is formed with a groove for receiving the belt.

The upper end of the groove for receiving the belt of the pulley for transmission is set above the upper end of the groove for receiving the belt of the pulley for rotation when the pulley for rotation is at the upper limit position. The lower end of the groove of the pulley is a groove having a width formed so as to be lower than the lower end of the groove of the rotating pulley when the rotating pulley is at the lower limit position.

The upper end of the groove for receiving the belt of the pulley for rotation is set above the upper end of the groove for receiving the belt of the pulley for transmission when the pulley for rotation is at the lower limit position. The lower end of the groove of the pulley is a groove having a width formed so as to be lower than the lower end of the groove of the pulley for rotation when the pulley on the rotating side is at the upper limit position.

Further, the hole formed in the table portion is formed in an attachment detachably provided in the table portion, and a plurality of the attachments are prepared for each hole portion having a diameter corresponding to the diameter of the tablet. and

According to the present invention, since it is electric, no power is required. In addition, the tablet extractor can be configured with a simple configuration.

1 is an explanatory front view of a tablet extractor of the present invention; FIG. 1 is an explanatory side view of a tablet extractor of the present invention; FIG. 1 is an explanatory plan view of a tablet extractor of the present invention; FIG. It is an explanatory view of the main part of the tablet extractor of the present invention. FIG. 4 is a diagram illustrating the tension of the belt of the tablet extractor of the present invention;

Examples of modes for carrying out the invention are provided below.

(1. Description of the overall configuration of the tablet extractor)

As shown in FIGS. 1 to 5, the tablet ejector 1 of the present invention has a packaging sheet 3 in which a tablet 2 is packaged is placed on the upper surface, and when the tablet 2 is pushed out from the packaging sheet 3, a pressure-resistant table portion 4 having a hole portion 4a which falls downward; a bar-shaped tablet push-out rod 5 provided vertically movably provided above the hole portion 4a of the table portion 4; It is composed of a vertically moving mechanism 6 and a tablet receiver BOX 7 provided below the hole 4a of the table 4 to receive the dropped tablet 2. As shown in FIG.

In addition, it is preferable that the table portion 4 has a size on which at least one tablet sheet 3 can be placed.

(2. Description of push rod)

The rod-shaped tablet push-out rod 5 has a threaded portion formed on the outer peripheral surface of the middle portion of the rod 5, and the threaded portion is above the table portion 4 and fixed to the table portion 4. The tablet push-out rod 5 is screwed into a screw hole formed in the portion 8, and is rotated forward or reverse by the vertical movement mechanism portion 6, so that the rod 5 is moved with respect to the table portion 4. Configured to move up and down.

In this way, by vertically moving the push rod 5 by rotation, the structure can be simplified rather than sliding the entire push rod structure to move it up and down.

(3, description of vertical movement mechanism)

The vertical movement mechanism 6 includes a rotation pulley 9 fixed to the upper part of the tablet push-out rod 5, a DC motor 10 with a speed reducer fixed to the table 4, and a DC motor 10 with a speed reducer. It comprises a transmission pulley 11 fixed to the output shaft 10a, a rotation transmission belt 12 suspended between the rotation pulley 9 and the transmission pulley 11, and a control section 13 for controlling the rotation of the motor 10. By rotating the motor 10 forward or backward, the rotation is transmitted to the transmission pulley 11, the rotation transmission belt 12, the rotation pulley 9, and the rod 5, which are screwed into the rod support portion 8. Then, the rod 5 moves up and down with respect to the rod support portion 8 .

In addition, the width of the groove 9a of the rotating pulley 9 for receiving the belt 12 is formed to be the same as or slightly larger than the width of the belt 12, thereby allowing the belt to be hung on the rotating pulley 9. Since the vertical movement of the belt portion 12a of 12 is restricted with respect to the rotating pulley 9, if the rotating pulley 9 moves up and down, the belt portion 12a that is hung on the rotating pulley 9 will move. are also formed to move up and down.

4(a) shows the rod 5 at the upper limit position, and FIG. 4(b) shows the rod 5 at the lower limit position. As shown in FIG. 4(a), When the rod 5 is at the upper limit position, the belt portion 12a is positioned upward, and as shown in FIG. 4(b), when the rod 5 is at the lower limit position, the belt portion 12a is positioned downward. will be located in

On the other hand, the width of the groove 11a of the transmission pulley 11 for receiving the belt 12 is formed to be larger than the sum of the width of the belt 12 and the vertical width of the rotation pulley 9. The belt portion 12b of the belt 12 hooked on the pulley 11 moves vertically with respect to the transmission pulley 11 in accordance with the belt portion 12a which moves vertically in accordance with the vertical movement of the rotating pulley 9. The belt 12 moves horizontally up and down.

That is, in the case of a transmission pulley having a groove that is only the width of the belt 12, the position of the belt portion 12b hooked on the transmission pulley is such that the vertical movement of the transmission pulley 11 is restricted. Therefore, while the belt portion 12b is always at the same height, the belt portion 12a hung on the rotating pulley 9 moves up and down according to the vertical movement of the rod 5, and as a result, the rotating pulley 9 and the height of the transmission pulley 11 are different, and the belt 12 is thus inclined.

Even if the transmission belt 12 is a rubber belt, such an inclination of the belt is structurally unreasonable in consideration of the amount of extension for absorbing the inclination and the tension thereof.

Therefore, as shown in FIG. 5, an oblique force can always be developed into force components in the X and Y directions on a vector. If the belt becomes slanted, an X-direction force component and a Y-direction force component are automatically generated. The X-direction force is the transmission force of the rotational force, and the Y-direction force is the load due to the inclination of the belt. The Y-direction component force may be used to move the belt portion 12b. It was found that the problem could be solved by considering a transmission pulley that could absorb that movement.

The structure of a normal pulley is such that the groove on which the belt is applied is almost the width of the belt so that the transmission force of the belt is minimized. Therefore, in the case of a conventional transmission pulley, the width of the groove should be approximately the same as the width of the transmission belt. so that the belt 12 can move in parallel.

That is, the upper end of the groove 11a of the transmission pulley 11 for receiving the belt 12 is above the upper end of the groove 9a for receiving the belt 12 of the rotating pulley 9 when the rotating pulley 9 is at the upper limit position. Also, the lower end of the groove 11a of the transmission pulley 11 has a width lower than the lower end of the groove 9a of the rotating pulley 9 when the rotating pulley 9 is at the lower limit position. to form

Since the rod 5 has a screw structure, for example, when the rod 5 is rotated to the right as viewed from above, the rod 5 starts to move downward, and the transmission belt 12 becomes oblique, so that the force component of the contact surface of the transmission pulley 11 is rotating. occurs in Since the contact surface is rotating, the transmission belt due to the component force does not move due to slippage, but rotates. Therefore, the transmission belt 12 moves horizontally on the contact surface of the transmission pulley 11 downward by the movement allowance of the rod 5 without being inclined.

Similarly, if the transmission pulley 11 is reversed, it will move upward, and similarly, the transmission belt 12 will rise substantially horizontally.

Therefore, as shown in FIGS. 4(a) and 4(b), the belt 12 is always horizontal.

The upper end of the groove 9a of the rotating pulley 9 for receiving the belt 12 is above the upper end of the groove 11a of the transmission pulley 11 for receiving the belt 12 when the rotating pulley 9 is at the lower limit position. Also, the lower end of the groove 9a of the pulley 9 for rotation is formed to be lower than the lower end of the groove 9a of the pulley 9 for rotation when the pulley 9 for rotation is at the upper limit position. You may make it become a groove|channel of width.

That is, when the rod 5 moves up and down, the rotation transmission belt 12 is provided so as to move vertically with respect to at least one of the rotation pulley 9 and the transmission pulley 11, and the rod 5 moves up and down. However, grooves 9a and 11a for receiving the belt 12 of the rotation pulley 9 and the transmission pulley 11 are formed so that the rotation transmission belt 12 is horizontal.

An upper limit sensor 14 and a lower limit sensor 15 are provided for detecting the upper limit position and the lower limit position of the rotating pulley 9, respectively.

For example, when the start switch button 16 provided in the control unit 13 is pressed, the control unit 13 rotates the motor 10 forward, moves the rod 5 downward, pushes out the tablet, and , when the lower limit sensor 15 detects the desired position of the rod 5, reverse the motor 10 to raise the rod 5, and when the upper limit sensor detects the desired position of the rod 5, The motor 10 is controlled to stop rotating. And this becomes one cycle of taking out the tablet.

(Description of attachment)

Further, the hole portion 4a of the table portion 4 may be formed in the table portion 4 itself, or may be formed in an attachment 17 detachable from the table portion 4. FIG. As the attachment 17, a plurality of attachments having a hole having a diameter matching the diameter of the tablet are prepared, and the attachment 17 is exchanged according to the diameter of the tablet.

Since the tablets packaged in the packaging sheet have different shapes, the relationship between the outer diameter of the extruded tablet and the passage diameter of the hole of the table section 4 is required. If the tablet diameter is smaller than the diameter of the hole, the reaction force of the base paper of the packaging sheet will weaken, and even if the pushing rod pushes the tablet out to the specified position, the reaction force will be weak. Without tearing, the packaging sheet bends and the tablet cannot be taken out.

Therefore, several types of tablet diameter adjustment attachments 17 with different passage diameters are required. Then, it should be replaced according to the tablet diameter.

(Description of the motor)

For the DC motor 10 with a speed reducer, for example, TAMIYA ITEM 72008 is suitable for the drive motor in terms of its shape, output rotation speed, output torque, and the like.

(Description of power connector)

In addition, 18 indicates a power connector. For example, it is assumed that power is supplied to the power connector 18 from an AC adapter. Therefore, no batteries are required. Of course, it may be a battery type.

(Description of how to use the invention)

Since the present invention is configured as described above, the user first attaches the tablet diameter adjusting attachment 17 that matches the tablet diameter to the table portion 4 .

Then, the tablet receiver BOX 7 is installed below the hole 4a, the tablet to be taken out is placed at a predetermined position on the upper surface of the table 4, the packaging sheet is lightly pressed, and the start switch button 16 is pressed. When the lever is pushed downward and released, the tablets stored in the tablet sheet can be pushed downward from above by the take-out rod and stored in the tablet receiving BOX 7 .

In operation, with a start button signal, the rod descends until a lower limit sensor signal is obtained, and the tablet is pushed out of the sheet and dropped into the receiving box below. Then, the rod turns upward and automatically stops when an upper limit sensor signal is received. This becomes one cycle and is stored in the control unit.

Incidentally, since the lever of the start switch button 16 has a momentary function, it returns when released.

According to the present invention, since it is electric, no power is required.

In addition, the tablet extractor can be configured with a simple configuration.

REFERENCE SIGNS LIST 1 tablet extractor 2 tablet 3 packaging sheet 4 table portion 4a hole portion 5 push rod 6 vertical movement mechanism portion 7 tablet receiving box
8 rod support 9 rotation pulley 9a groove 10 motor 10a output shaft 11 transmission pulley 11a groove 12 rotation transmission belt 12a belt portion 12b belt portion 13 control portion 14 upper limit sensor 15 lower limit sensor 16 start switch button 17 attachment 18 power connector

Claims (5)

a table portion having a hole on which a packaging sheet in which a tablet is packaged is placed on the upper surface and a hole through which the extruded tablet falls;
a vertical rod-shaped tablet push-out rod provided above the hole of the table so as to be vertically movable;
It comprises a vertical movement mechanism for moving the rod up and down,
A threaded portion is formed on the outer peripheral surface of the rod, and the threaded portion is screwed into a threaded hole of a rod support portion fixed to the table portion above the table portion. is configured to move the rod up and down with respect to the table portion by rotating forward and backward,
The vertical movement mechanism includes a rotary motor, a rotary pulley fixed to the tablet push-out rod, a transmission pulley fixed to the vertical output shaft of the rotary motor, and between the rotary pulley and the transmission pulley. A tablet extractor characterized by comprising a rotation transmission belt suspended from a When the rod moves up and down, the rotation transmission belt is vertically movable with respect to at least one of the rotation pulley and the transmission pulley. 2. The tablet extractor of claim 1, wherein grooves are formed for receiving the belt. The upper end of the belt-receiving groove of the transmission pulley is set above the upper end of the belt-receiving groove of the rotating pulley when the rotating pulley is at the upper limit position. 2. The groove according to claim 1, wherein the lower end of the groove has a width formed so as to be lower than the lower end of the groove of the rotating pulley when the rotating pulley is at the lower limit position. tablet extractor. The upper end of the belt-receiving groove of the rotating pulley is set above the upper end of the belt-receiving groove of the transmission pulley when the rotating pulley is at its lower limit position. 2. The groove according to claim 1, wherein the lower end of the groove is formed to be lower than the lower end of the groove of the rotating pulley when the pulley on the rotating side is at the upper limit position. A tablet extractor as described. The hole formed in the table portion is formed in an attachment detachably provided in the table portion, and a plurality of the attachments are prepared for each hole portion having a diameter corresponding to the diameter of the tablet. A tablet extractor according to claim 1.

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