JPH058865Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention consists of storing a strip impregnated with a drug in a movable manner, setting the strip in a device equipped with a heat generating element, and running the strip along the heat generating part. The present invention relates to a belt storage device that evaporates medicine by heating while traveling.

[Conventional technology]

Prior art relating to a heating and evaporating device that evaporates medicine using a belt-shaped container is JP 55-43727.
However, none of these techniques are capable of transporting a constant amount of chemicals at a constant speed suited to the type of chemical impregnated in the strip or the set amount of evaporation, and are unable to efficiently evaporate a constant amount of chemicals.

That is, in the device described in Japanese Patent Publication No. 55-43727, a mounting shaft and a winding drum are disposed within a case, and a belt-shaped body impregnated with a drug is wound around the mounting shaft. is wound around the winding drum, and by driving the winding drum, the belt-like body is wound around the winding drum and runs along the heat generating part. A large-diameter worm wheel is attached to the device, a worm gear connected to a motor is provided on a device equipped with a heating element, and when a band storage device is set on the device, the worm wheel meshes with the worm gear, and
The strip can run along the heating element, and a motor drives a worm gear to rotate the winding drum.

The belt storage device described in Utility Model Publication No. 51-51884 has a shaft hole formed in the shaft center of the winding drum, and this shaft hole is fitted into a drive shaft provided in the device to rotate the winding drum. It is designed to be driven.

On the other hand, when the belt-shaped body is run along a heat-generating portion to evaporate the drug by heating, the heating time differs depending on the traveling speed of the belt-shaped body, and the belt-shaped body is designed to evaporate the drug efficiently. The heating time varies depending on the type of drug impregnated into the strip.

In addition, if the heating temperature is sufficient to evaporate the drug, and the type of drug is the same, increasing the running speed will increase the amount of transpiration, increasing efficacy and making it possible to use it in a wider area. Conversely, if the running speed is slowed down, the drug can continue to evaporate over a long period of time, so the amount of drug transpiration can be adjusted by changing the running speed.

[The problem that the idea aims to solve]

In the case of the above-mentioned strip storage device, since the strip is wound by directly rotating the winding drum, the running speed of the strip is determined by the rotational speed of the winding drum. In order to evaporate a certain amount of the drug by adjusting the running speed of the strip to a heating time depending on the type of drug impregnated in the strip and the amount of transpiration, it is necessary to change the rotational speed of the winding drum.
For the former band storage device, it is necessary to attach a worm wheel with a different diameter to the winding drum or to change the speed of the motor installed in the device, and for the latter band storage device, it is necessary to install a worm wheel with a different diameter on the winding drum or to change the speed of the motor installed in the device. It is necessary to change the rotation speed of the drive shaft.

However, in order to attach worm wheels with different diameters to the winding drum, it is necessary to manufacture and prepare a large number of worm wheels with diameters larger than the winding diameter of the strip, and wind the worm wheels with diameters corresponding to the type of impregnated drug and the amount of transpiration. The worm wheel must be attached to the take-up drum, which is cumbersome and the manufacturing cost is extremely high.The case itself must also be large enough to accommodate the large diameter worm wheel, making it impossible to use cases of the same size. Moreover, since the position of the worm gear installed on the device side is fixed, if a worm wheel of a different diameter is installed, the position at which it is set on the device will be slightly different, and the worm gear will not run correctly along the heating element installed on the strip. Sometimes.

In addition, when installing a control device that can change the speed of the motor or the rotational speed of the drive shaft on a device, it is necessary to install an expensive motor controller, which increases costs. If a switch is used to change the rotational speed of the shaft by changing the band stored in the band storage device, setting errors may occur, and since it is a heating evaporation device, the phenomenon of heat dissipation and drug insertion will inevitably occur. Therefore, the heat resistance and chemical resistance of the control mechanism for the rotational speed of the motor and drive shaft become a problem, resulting in a heating evaporation device that lacks durability and safety and is not practical.

Furthermore, in both of the above cases, even if the rotational speed of the winding drum is constant, the running speed of the strip changes depending on the amount of the strip wound on the winding drum.
In other words, as the amount of winding increases, the running speed becomes faster.

For this reason, even if the rotational speed of the rotating drum is set to a speed appropriate to the type of drug impregnated in the strip and the amount of transpiration as described above, the running speed of the strip is always kept constant to efficiently evaporate the drug. It is not possible.

Therefore, an object of the present invention is to provide a belt-shaped object storage device that can solve the above-mentioned problems.

[Means and actions to solve the problem]

Case 8 consisting of an upper plate 9, a lower plate 14, and a surrounding side plate
a mounting shaft 26 in which a drug-impregnated band 28 is wound vertically at right angles to the upper plate 9 and the lower plate 14;
A winding drum 27 having a shaft hole 36 and a drive roller 3
1 is rotatably supported by an upper plate 9 and a lower plate 14, and a heat transfer body 25 having an upward groove 24 is mounted in the case 8, with the upward groove 24 facing the upper plate 9. At the same time, opening windows 22 and 23 are formed facing each other around the heat transfer body 25 on the upper plate 9 and the lower plate 14, and the band-shaped body 28 is formed in the upward groove 25 of the heat transfer body 25.
and a pinch roller 32 that wraps around the winding drum 27 via the drive roller 31 so that both sides of the strip 28 are heated by the heat transfer body 25, and presses the strip 28 against the drive roller 31 in the case 8. ,
This belt-shaped object storage device is provided with a spring that biases the pinch roller 32 in the pressing direction.

As a result, the running speed of the strip can be changed by installing drive rollers with different outer diameters, and even if drive rollers with different diameters are installed, the positions of the strip and the heat transfer body 25 can be kept constant. body 2
8 can always run at the set running speed from start to finish, and when carrying the case 8, you do not have to touch the band 28 with your hands.
The drug impregnated in the strip can be efficiently evaporated and the drug can be smoothly evaporated out of the case by the heated rising air flowing through the opening window, and the drive roller can reliably run the strip without slipping.

〔Example〕

As shown in FIG. 8, the device 1 consists of a device body 2 and a lid 3. By sliding the lid 3 laterally along the device body 2 in the direction of the arrow, the band-shaped body storage device 4 can be attached to the device body 2. It is possible to set it.

As shown in FIG. 9, the instrument 1 may have a holder 5 on the instrument body 2, which is provided with a strip storage device 4 that can be detachably attached to the holder 5 and can be moved up and down.

As shown in FIG. 3, the belt-shaped body storage device 4 has a case 8 including an upper case 6 and a lower case 7.
As shown in FIG. 4, the upper case 6 is made up of an upper plate 9, an end plate 10, an end plate 11, a side plate 12, and a side plate 13.
5, the lower case 7 is formed into a rectangular box shape of the same size as the upper case 6 by a lower plate 14, one end plate 16, the other end plate 15, one side plate 17 and the other side plate 18, and a substantially U-shaped inner auxiliary side plate 19 and an outer auxiliary side plate 20 are integrally formed concentrically on the lower surface side plate 12 side of the upper plate 9 and the upper surface side plate 17 side of the lower plate 14, respectively. Ventilation holes 21 are formed between the inner auxiliary side plate 19 of the upper plate 9 and the one side plate 20, a plurality of slit-shaped opening windows 22 are formed in the inner peripheral portion of the inner auxiliary side plate 19 of the lower plate 14, the inner peripheral portion of the inner auxiliary side plate 19 of the lower plate 14 is cut out to form opening windows 23, and a heat transfer body 25 having an upward groove 24 is attached across the inner auxiliary side plate 19 of the upper case 6 and the outer auxiliary side plate 19 of the lower case 7.

The upper plate 9 of the upper case 6 and the lower plate 1 of the lower case 7
4, as shown in FIG. 1, a mounting shaft 26 and a winding drum 27 are rotatably supported,
The band-shaped body 28 wrapped around the inner and outer sides of the guide body 29, the notches 30 formed in the inner and outer auxiliary side plates 19 and 20, the upward concave grooves 24 of the heat transfer body 25, and the upper plate 9 and the lower plate The belt-like body 28 is wound around the winding drum 27 via a drive roller 31 supported by the belt 14.
is pressed by a pinch roller 32.

The pinch roller 32, as shown in FIG.
The pinch roller 32 is supported by an arm 34 that is rotatable around a shaft 33 attached to the upper plate 9 and the lower plate 14, and the arm 34 is biased to rotate by a spring 35, so that the pinch roller 32 is pressed against the drive roller 31. It is designed to do so.

A shaft hole 36 is formed in the axial center of the winding drum 27, as shown in FIG.
A toothed portion 37 for power transmission is formed in the lower part of the instrument body 2, and a drive shaft is connected to the main body 2 by fitting into the shaft hole 36 of the winding drum 27, as shown in FIG. 38 and a shaft 40 having a gear 39 that meshes with the teeth 37 of the drive roller 31, the shaft 40 is connected to a motor 41, and the shaft 40 and the drive shaft 3 are connected to each other.
8 are connected via a pulley 42, a belt 43, and a pulley 44, and a gear 39 is urged upward by a spring 45. When the band storage device 4 is set in the device main body 2, the drive shaft 38 is connected to the winding drum. At the same time, the gear 39 meshes with the teeth 37 of the drive roller 31, and when the motor 41 is driven, the drive roller 31 is driven to rotate with a strong torque, and the winding drum 27 is rotated with a weak torque. drive

In other words, the drive shaft 38 is connected to the pulley 44 and the belt 4.
3. Since it is connected to the output side of the motor 41 via the pulley 42, the belt 43 and pulleys 42, 44
Automatically variable torque winding rotation changes are transmitted to the drive shaft 38 by a fast winding rotation having a sliding mechanism. Note that the drive shaft 38 and motor 41
The same effect as before can be achieved by connecting the output side of the two through a friction plate to cause slippage.

That is, the motor 41 may be rotated through a plurality of gears so that the shaft 40 and the drive shaft 38 have a predetermined rotation speed and torque. In this case, it is preferable to provide one of the gears from the gear that transmits the drive to the shaft 40 to the gear that transmits the drive to the drive shaft 38, or the drive shaft 38 with a slip mechanism that reduces the torque.

Further, when the band storage device 4 is set in the instrument main body 2, the heat transfer body 25 is placed on the heating element 46 provided in the instrument main body 2, as shown in FIG.

Because of this, when the strip storage device 4 is set in the instrument body 2 and the motor 41 is driven, the strip 28 is let out from the mounting shaft 26 by the drive roller 31 and wound around the winding drum 27. Then, the strip 28 runs along the upward concave groove 24 of the heat transfer body 25 heated by the heating element 46, and the impregnated drug evaporates due to heating.

At this time, the running speed of the strip 28 is determined by the rotation speed and outer diameter of the drive roller 31, and even if the rotation speed is constant, the running speed of the strip 28 can be changed by installing drive rollers 31 with different outer diameters.

Therefore, the drive roller 3 has an outer diameter that provides the optimum running speed for the type of drug impregnated into the strip 28.
1, the running speed of the belt-shaped body 28 can be set to the optimum running speed.

In addition, the strip 28 wound around the winding drum 27
Even if the amount changes, the running speed of the strip 28 can be kept constant.

At this time, the diameter of the winding drum 27 increases as the amount of winding increases, and the winding capacity per rotation changes.
1, so that as the amount of winding increases, the belt will slip and the transmitted torque will become weaker, and the number of revolutions will automatically decrease. It can be smoothly wound without increasing the diameter more than necessary.

In other words, the drive roller 31 and the pinch roller 3
The slipping is performed with a force that is less than the pressing force of 2 and with a winding force that does not cause loosening of the strip 28 from the beginning to the end of winding.

Although the drive roller 31 may have a flat surface, it is preferable that the drive roller 31 has an uneven surface 31a as shown in FIG.
The upper and lower portions 31b and 31c may have large diameters to form surface irregularities 31a, as shown in FIG. The belt-shaped body 28 is held between the meshing portion of the concave and convex portion 31a and the belt-like body 28 can be reliably fed without slipping. Fig. 10d shows an embodiment in which only the outer diameter of the drive roller 31 in Fig. 10a is reduced.If the drive roller formed in this way is placed inside the band storage device, the traveling speed of the band can be slowed down. can. Although not shown, if the diameter is increased, the traveling speed of the belt-shaped body becomes faster. In addition,
If the unevenness 31a is made too large, the unevenness is made too acute, or the pressing force is too large, the band-shaped body 28
Depending on the material, wavy marks may be formed and the winding diameter becomes larger than necessary when winding on a winding drum, so the shape of the unevenness 31a etc. needs to be appropriate.

In addition, by providing an air flow path that communicates the open window portion 23 and the open window 22 around the heat transfer body 25, above and below, the air flow becomes smooth.
The drug evaporated from the strip 28 quickly evaporates from the opening window 22, and an air flow path communicating between the case upper plate 9 and the case lower plate 24 is formed between the inner and outer auxiliary side plates 19 and 20, and the air Since the air flows along the airflow path, heat is not transferred from the heated portion to the band-shaped body 28 wrapped around the mounting shaft 26, and it is possible to prevent the chemical from volatilizing from the band-shaped body 28.

Furthermore, as shown in FIG. 14, a plurality of drive rollers 31, 31' with different diameters are installed inside the strip storage device,
It is designed to be movable and fixed in the direction of the arrow along the rail grooves 55 formed on the upper and lower plates 9 and 14 of the case, and to select either of the drive rollers 31 or 31' as appropriate and slide and fix it until it comes into contact with the pinch roller. By doing so, it is also possible to change the amount of transpiration per unit time of the drug impregnated into the strip.

In addition, when using a high-temperature heating element or when using a drug that evaporates easily, three or four auxiliary side plates are formed around the heating part, and a belt-shaped plate wrapped around the mounting shaft 27 is used. It is sufficient to make it even more difficult for heat to be transmitted to the body 28.

Further, the inner auxiliary side plate 19 may have a streamlined shape as shown in FIG. 11 to allow air to flow smoothly.

In addition, as shown in FIG.
3, an air flow passage 54 through which air communicates
A heating element is placed in the flow path 54,
The device may be communicated with the opening 22 of the band storage device through the device bottom 52 and 53, thereby allowing smoother evaporation of the drug.

As shown in FIG. 12, the pinch roller 32 may be attached to the free end of a leaf spring 48 whose one end is attached to the case 8, or as shown in FIG. At the same time, the pinch roller 32 may be supported by the support 50 and urged by the spring 51 to press the pinch roller 32 against the drive roller 31.

In addition, the shape of the outer surface of the pinch roller 32 should be such that it can drive the strip 28 without slipping.
It is preferable to face the outer surface of the drive roller 31. For example, if the drive roller 31 has an unevenness 31a as shown in FIG. 10, it may have an unevenness that meshes with the unevenness 31a.

In addition, a drive roller 31 and a pinch roller 32
The installation position may be between the heat transfer body 25 and the mounting shaft 26, or between the heat transfer body 25 and the winding drum 27, as long as it is on the running path between the mounting shaft 26 and the winding drum 27. Preferably, it is installed between the heat transfer body 25 and the winding drum 27 so that the strip 28 after the drug has evaporated comes into contact with the drive roller 31 and the pinch roller 32, so that the drug can be transferred to the drive roller 3.
This is preferable because it does not cause slips to occur due to adhesion to the pinch rollers 32 and 1.

The materials of the drive roller 31 and the pinch roller 32 include polymer resins such as polypropylene, polyethylene, polyacetal, polyester, polyamide, fluororesin, hard vinyl chloride, Bakelite, and phenol resin, stainless steel, brass, etc.
Any metal such as aluminum, glass, or ceramic that has chemical resistance and heat resistance may be used. The auxiliary side plate may be made of the same material as the case and may be formed integrally with the drive roller 3 described above.
It is also possible to manufacture it separately from the case from the same material as No. 1 and incorporate it into the case later.

The band 16 may be in the form of a continuous tape impregnated with a drug, or may be divided into predetermined lengths by slit holes, resin, etc., or may be divided into predetermined lengths impregnated with a drug.

The agent to be impregnated into the strip may be one whose main component is one that evaporates when heated.
Insecticides, repellents, mothballs, fungicides, fragrances, rust preventives, anti-mold agents, etc. can be used.

The heating element may be any heating resistor such as nichrome wire, PTC, infrared heater, ceramic heater, etc., and the temperature is generally 45 to 400℃.
It can be used within the range of.

[Effect of idea]

The strip 28 can be wound onto the winding drum 27 by being run by the drive roller 31, so if the drive rollers 31 have different outer diameters, the rotational speed of the motor etc. provided on the instrument side can be adjusted. The running speed of the strip 28 can be changed arbitrarily while keeping it constant. For example, if the drive roller 31 with a large outer diameter is attached, the running speed of the strip 28 will be increased, and if the drive roller 31 with a small outer diameter is attached, the running speed of the strip 28 will be slowed down.

Therefore, since there is no need to control the rotational speed of the motor, there is no need to provide a complicated and expensive motor controller, and the device for setting the strip storage device can be made inexpensive, and the strip storage device can be manufactured. At this time, the outer diameter of the drive roller 31 is determined so that the running speed corresponds to the type of drug impregnated in the strip and the amount of transpiration of the drug, and the outer diameter of the drive roller 3 of that outer diameter is determined.
1 to the case 8, it is not only possible to accurately set the traveling speed of the strip to a predetermined speed, but also to prepare drive rollers 31 with different outer diameters in a complicated manner and attach one of the drive rollers 31. Since it is possible to reduce manufacturing costs, it is also possible to use cases of the same size.

Further, since the belt-like body 28 is run by the drive roller 31 provided inside the case 8, the position of the belt-like body 28 with respect to the case 8 does not change even if drive rollers 31 with different outer diameters are attached, and the drive roller 31 does not change its position with respect to the case 8.
Since the center position of 1 does not change with respect to the case 8, it can be set at the same position in the main body of the instrument, and the positional relationship between the band 28 and the heat transfer body 25 is constant, so the band 28 is heated. Not only can it run correctly along the transmission body 25, but also the drive roller 3
1, if all the strips 28 provided in the case 8 are fed, a new strip storage device 4 is created along with the case 8.
Since the drive roller 31 is replaced by the roller 31, it is not swollen, contaminated, or deteriorated due to the influence of heat from chemicals or heating elements, and the belt can run stably from the initial stage to the final stage of winding. Over time, the amount of transpiration of the drug also becomes constant.

Furthermore, even if the amount of winding of the strip by the winding drum 27 changes, the traveling speed of the strip can be kept constant, which, together with the aforementioned ability to set the traveling speed arbitrarily, makes it possible to keep the strip from the beginning to the end. You can always run at the set speed.

Further, a heat transfer body 25 having an upward concave portion 24 is provided in the case 8, and the upward concave portion 2 of this heat transfer body 25 is provided.
4. Heat is transferred to the bottom of the device from the heating element of the instrument body, and the strip 28 is heated by running vertically along the upward concave groove 24 of the heat transfer body 25. Since there is no need for direct heating with the heating element installed in the main body, the band-shaped body 28 is attached to the case 8.
There is no need to form a large opening window that exposes the case 8 to the outside, and when carrying the case 8, the user does not have to touch the band 28 with his/her hands, which prevents the user from feeling uncomfortable. Since the belt-like body 28 is heated by the transmission body 25, the belt-shaped body 28 can be efficiently heated and the impregnated drug can be sufficiently evaporated.

In addition, since the opening windows 22 and 23 are formed around the heat transfer body 25 of the upper plate 9 and the lower plate 14 of the case 8, an upward heat current is generated around the heat transfer body 25 in the case 8, and as described above. Coupled with the fact that the strip 28 runs vertically in the upward concave groove 24 of the heat transfer body 25, the drug evaporated from the strip 28 can be smoothly evaporated out of the case 8.

Further, since the drive roller 31 is directly driven by the drive section of the instrument body, and the strip 28 is pressed against the drive roller 31 by a pinch roller 32, the drive roller 31 does not slip the strip 28. It can be run reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a cross-sectional view of the belt-shaped object storage device, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Figs. 3, 4, and 5 are front views. , a top view, a bottom view, and FIG. 6 is an explanatory diagram of the drive part of the instrument body.
Figure 7 is a sectional view of the heating element and heat transfer element, Figure 8 is a front view of the device, Figure 9 is a front view of other appliances, and Figures 10 a, b, c, and d are front views of the drive roller. figure,
FIG. 11 is a sectional view showing another example of the heat transfer body portion;
FIGS. 12 and 13 are explanatory views showing different examples of the pinch roller portion, and FIG. 14 is an explanatory view showing an example in which a plurality of drive rollers are provided. 8 is a case, 26 is a mounting shaft, 27 is a winding drum, 28 is a strip, and 31 is a drive roller.

Claims (1)

[Scope of claim for utility model registration] Case 8 consisting of upper plate 9, lower plate 14, and surrounding side plates
a mounting shaft 26 in which a drug-impregnated band 28 is wound vertically at right angles to the upper plate 9 and the lower plate 14;
A winding drum 27 having a shaft hole 36 and a drive roller 3
1 is rotatably supported by an upper plate 9 and a lower plate 14 and mounted, and a heat transfer body 25 having an upward groove 24 is placed in the case 8, with the upward groove 24 facing the upper plate 9. At the same time, opening windows 22 and 23 are formed facing each other around the heat transfer body 25 on the upper plate 9 and the lower plate 14, and the band-shaped body 28 is formed in the upward concave groove 25 of the heat transfer body 25.
and a pinch roller 32 that wraps around the winding drum 27 via the drive roller 31 so that both sides of the strip 28 are heated by the heat transfer body 25, and presses the strip 28 against the drive roller 31 in the case 8. ,
A belt-like object storage device characterized by being provided with a spring that biases the pinch roller 32 in a pressing direction.