JP7665259B2 - Waste sealing structure for waste collection box - Google Patents

Description

The present invention relates to a structure for preventing improper sealing of waste in a waste collection box, and more specifically, to a structure for preventing improper sealing of waste in a waste collection box, which prevents the sealed part of the wrapping paper from breaking and solves the problem of foul odors leaking when the edges of the wrapper roll, which has good adhesion, are sealed by engaging a pair of gears, and further strengthens the sealing force to ensure safe packaging of waste.

Generally, public restrooms at highway rest areas, schools, hospitals, and other institutions have separate restrooms for men and women, and toilet booths (decrepit booths) are equipped with trash cans for disposing of used toilet paper, paper dispensers, shelves, and other features for ease of use.

Recently, toilet paper has been revised so that it can be thrown directly into the toilet after use and then flushed down the toilet, and trash cans have been eliminated since January 1, 2018, in accordance with the Public Toilet Law Enforcement Order.

In order to properly dispose of and collect sanitary napkins after use by women, women-only public restrooms are usually provided with sanitary product collection boxes (hereafter referred to as sanitary napkin collection boxes) for the purpose of collecting sanitary napkins.

Existing sanitary napkin collection boxes and related prior art mostly rely on boxes to collect sanitary napkins after use, and such collection boxes do not solve the fundamental problem of bad odors (smell leakage). In particular, secondary bad odors are generated when toilet maintenance and beautification staff open the collection box and collect the sanitary napkins collected in the box. This not only causes air pollution due to the collection of used sanitary napkins, but also attracts pests, and the sanitary aspects of public toilets used by an unspecified number of people are constantly being pointed out, making it difficult to maintain a comfortable toilet interior.

Meanwhile, in addition to sanitary napkins, waste from hospitals (such as cotton, gauze, bandages, dressings, disposable gloves, masks, etc. that are discarded after wounds are treated) is treated separately because it has a chemical smell and is infectious.

However, waste disposal as mentioned above is often not done on a case-by-case basis, and there is a risk of secondary infection as well as the smell of chemicals, so hospitals should be more careful with disinfection. In reality, waste is disposed of in special waste bins or collected in one place for disposal, which leads to air pollution and infection.

Looking at the prior art in light of the above points, Korean Patent Publication No. 10-2213504 (Name: Sanitary Napkin Collection Box, Registration Date: February 2, 2021, hereinafter referred to as the "Patent Document") is disclosed.

The sanitary napkin collection box in the patent document has a lock door on the front for collecting used sanitary napkins, a rectangular body with a partition wall with a passage for used sanitary napkins formed on the inside of the upper part, and an upper cover that is detachably attached to the upper part of the body and has a horizontal insertion opening in the center of the upper part for inserting used sanitary napkins, with the upper and side surfaces exposed, and transparent wrap guide pieces that become narrower toward the bottom are attached vertically downward on both sides of the lower part of the insertion opening, and a pair of upper covers that are fixed to correspond to both sides of the upper part of the body. a first support base having shaft guide grooves on both sides, parallel support portions formed at an upper portion between the shaft guide grooves and a sensor support portion formed in the middle, and a shaft support hole and a fixing hole for fixing to the main body formed at a lower portion of the sensor support portion; a second support base having a bottom portion formed with a through hole that corresponds to a passage for a used sanitary napkin at an upper portion of the partition wall of the main body and leads to a lower portion of the main body, and sides having shaft through holes on both sides of the bottom portion, the bottom surface of the bottom portion is seated and fixed to the upper surface of the partition wall of the main body, and both sides of the second support base are disposed at an interval between the first support bases; a rotating shaft having both ends rollably supported in the shaft guide groove of the first support stand, first wrap and second wrap in roll form for wrapping and sealing a used sanitary napkin inserted by being attached to the rotating shaft; a roller shaft having both ends rotatably installed in the shaft support part of the first support stand and guiding the wrap from the first wrap and the second wrap to an inner lower part of the upper cover through an opening of an insertion port on the upper cover side; a light emitting part and a light emitting part facing the light emitting part, which are fixedly installed in the sensor support part of the first support stand and detect a used sanitary napkin; The device is made up of a light receiving unit that is fixed to the sensor support of the first support base and detects the presence or absence of light irradiated by the light emitting unit, a pair of spur gears fixed to both sides of the shaft, a first gear shaft and a second gear shaft that are installed so that both ends roll on the second support base, a passive gear connected to the shaft of the first gear shaft that passes through the second support base, a driving gear that is installed so as to rotate on one side of the first support base on which the passive gear is installed, and a driving motor that is installed on the second support base and rotates the driving gear.

The sanitary napkin collection box 1 as described above is structured to seal waste P such as used sanitary napkins that are inserted by detecting the insertion of used sanitary napkins, operating the drive motor M, and continuously transporting the first wrapper roll W1 and the second wrapper roll W2 mounted on the support stand 2 side. By collecting used sanitary napkins inside the main body, it solves the biggest problems with used sanitary napkins, such as contamination and bad odors, while also allowing for a clean, sealed, and packaged collection box.

However, as described above, when the wrap rolls W1 and W2 are supplied and mesh with each other, the cushion material 30 is pressed tightly against the sanitary napkins after use, and the drive gear G1 on the drive motor M side and the driven gear G2 mesh with and rotate the spur gears 12 and 22 of the first gear shaft 10 and the second gear shaft 20, the ends where the spur gears mesh with each other cause poor sealing of the wrap roll at the boundary with the cushion material 30, as shown in the attached Figures 1 and 2.

In other words, poor sealing of the wrap roll occurs when a used sanitary napkin is inserted and passes between the cushioning materials of the first and second gear shafts. In the case of a thickly folded sanitary napkin or a large-volume baby diaper, the wrap is pulled by the large volume of waste at the spur gear part where the first and second wraps are in close contact with each other, and the wrap is torn at the edge of the spur gear.

The spur gears used in such collection boxes are generally injection molded products made of plastic material, which is easy to produce, and are made of a harder material than the original wrap. Due to the nature of the wrap, it is easy to seal the edges by making them stick together. However, as mentioned above, when the volume of waste input increases, this can cause damage to the original wrap.

As waste P, used sanitary napkins are wrapped and gradually pile up in the collection box 1, but there is a problem with the wrap roll being torn by the tensile force generated at the edge of the spur gear on the side where the wrap roll engages with the spur gear, as shown in part "A" in attached Figure 3.

The torn areas cause the smell of waste or menstrual blood to leak out, contaminating the collection box. This leads to odors in the interior space of the toilet booth, and when the collection box is opened to collect used sanitary napkins, workers smell an unclean odor during the process of collecting them, which creates problems such as the need to clean and disinfect the contaminated areas of the collection box.

Prior art documents in the technical field to which the present invention pertains include the above-mentioned Korean Patent Publication No. 10-2213504.

The present invention was invented to solve the above-mentioned problems of the past. The purpose of the present invention is to provide a structure for preventing poor sealing of waste in a waste collection box, which not only prevents the sealed part of the wrapping paper from breaking and solves the problem of foul odors leaking by sealing the edges of the wrapper roll, which has good adhesion, with a pair of gears meshing together, but also strengthens the sealing force to ensure safe packaging of waste.

According to the present invention, which is intended to achieve the above object, a lap roll is provided in a form in which both ends can rotate on the internal support of the collection box through an inlet on the collection box side, and when waste is input, two rolls of wrap are supplied together with the waste sandwiched between them. As the rolls pass between a first gear shaft and a second gear shaft equipped with spur gears on both sides, the ends of the rolls of wrap are sealed by the meshing of the spur gears and the tight pressure of the cushioning material on the first and second gear shafts. The spur gears on the first and second gear shafts are gear bodies with a gear portion and an outer diameter portion partitioned, The spur gear of the first gear shaft is formed so that its tooth tip circle coincides with the outer diameter of the gear body, and the spur gear of the second gear shaft that meshes with the spur gear of the first gear shaft is formed so that its tooth root circle coincides with the outer diameter of the gear body and its tooth tip circle protrudes. A groove is formed on the outer diameter of the gear body of the spur gear, and an O-ring is inserted in the groove to tightly contact the lap raw material. One end side of the outer diameter of the gear body is formed to be inclined, so that the lap raw material can pass through the groove without interference at a right angle to the lap raw material.

The gear body on which the spur gear of the first gear shaft is formed and the groove of the gear body on which the spur gear of the second gear shaft is formed are formed in a mutually offset shape, so that the pressurized sealing of the wrap base material through the O-ring is pressurized sealing of the wrap base material at two points.

The present invention is characterized in that one or more pressure projections are formed at intervals on the outer diameter of the spur gear of the first gear shaft, and a seating groove having a width and depth is formed on the outer diameter of the gear body on which the spur gear of the second gear shaft is formed, and a band-shaped band ring that contacts the pressure projections is inserted into the seating groove to perform pressure sealing of the wrap roll.

The gear part according to the present invention is characterized in that it is formed with a depth of 1.5 to 2.5 mm from the tip circle to the root circle, and meshing of the spur gear is performed.

The waste collection box structure according to the present invention prevents waste from being sealed poorly. In this type, waste is stacked on the front and back, and when the wrap roll is moved in close contact to seal the periphery, the spur gear of the first gear shaft is formed in a shape in which the tooth tip circle matches the outer diameter of the gear body, and the spur gear of the second gear shaft that meshes with the spur gear of the first gear shaft is formed in a shape in which the tooth bottom circle matches the outer diameter of the gear body and the tooth tip circle protrudes, so that they mesh with each other and form a groove in the outer diameter section separated from the gear section. An O-ring is inserted in this groove to press the wrap roll in close contact with it, and a sealing part is added by the pressing action of the two O-rings, and the meshing part of the gear is sealed so that it cannot be easily torn. This prevents the leakage of bad odors and menstrual blood due to the tearing of the wrap roll as in the past, and provides useful advantages for hygienic use of the waste collection box and future waste collection management.

FIG. 1 is a perspective view showing a gear and a gear side for sealing and transporting a roll of wrap used inside a collection box of the prior art. 2 is a side cross-sectional view of the collection box in use, showing a state in which a wrap passes through the collection box by meshing between gears in FIG. 1; FIG. FIG. 3 is a plan view showing the state in which the waste is sealed by the meshing of the gears in FIG. 2 . FIG. 2 is a perspective view showing a first gear shaft, a second gear shaft, and an O-ring separately applied to the waste collection box of the present invention; FIG. 4 is a side cross-sectional view showing a meshing state of gear portions of a first gear shaft and a second gear shaft according to the present invention. 6 is a cross-sectional view taken along line A-A of FIG. 5, showing the sealed edge of the wrap, which is a waste packaging material according to the present invention. 13 is a diagram showing another embodiment of the application of an O-ring to a first gear shaft according to the present invention; 13 is a diagram showing another embodiment of the application of an O-ring to a first gear shaft according to the present invention; FIG. 11 is a cross-sectional view of a first gear shaft and a second gear shaft showing an edge sealing structure of a wrap according to another embodiment of the present invention. FIG. 2 is a front view showing the wrap sheet according to the present invention in a sealed state.

The present invention will now be described in more detail with reference to the accompanying drawings.

Prior to this, the terms and words used in this specification and claims should not be interpreted in a limited manner to their ordinary or dictionary meanings, but should be interpreted in a manner that corresponds to the technical idea of the present invention, based on the principle that an inventor can appropriately define the concept of a term in order to best describe his or her invention.

Therefore, it should be understood that the embodiment described in this specification and the configuration shown in the drawings are merely the most preferred embodiment of the present invention and do not represent the entire technical idea of the present invention, and that at the time of filing this application, there may be various equivalents and modifications that can be substituted for them.

The waste sealing structure of the present invention is described below with reference to the attached Figures 4 to 10.

The two wrap rolls W1, W2 are provided so that they can rotate at both ends on the internal support base 2 of the collection box through the inlet on the collection box side, and when waste P is input, they are supplied in a form in which the two wrap rolls W1, W2 are joined together with the waste sandwiched between them. As they pass between the first gear shaft 10 and the second gear side 20, which are provided with spur gears 12, 22 on both sides, the spur gears 14, 14 mesh with each other and the cushion material 30 on the first gear shaft and the second gear shaft is pressed closely against each other, sealing the edges of the wrap roll. The spur gears 12, 22 on the first gear shaft 10 and the second gear shaft 20 are made of gear bodies 11, 21 that are divided into gear parts 12a, 22a and outer diameter parts 12b, 22b.

The spur gear is made of synthetic resin, not metal, and is made of resin to press the wrap roll tightly rather than parts that require the transmission of gear power. In order to improve the sealing effect by pressing the wrap roll tightly rather than parts that require the transmission of gear power, the gear teeth are densely formed with at least 80 to 150 teeth from the base circle.

The spur gear 12 of the first gear shaft 10 is formed in such a way that its addendum circle coincides with the outer diameter portion 12a of the gear body 11, and the spur gear 22 of the second gear shaft 20 that meshes with the spur gear 12 of the first gear shaft 10 is formed in such a way that its tooth circle coincides with the outer diameter portion 22a of the gear body 21, and its tooth addendum circle is protruding.

In other words, the meshing rotation of the spur gear of the first gear shaft and the spur gear of the second gear shaft are arranged so that their outer diameters are in close contact with each other, and the O-ring inserted in the groove described below allows the wrap roll to be pressed and compressed with a minimum gap.

The outer diameter parts 12b, 22b of the gear bodies 11, 21 of the spur gears 12, 22 are formed with grooves 12-1, 22-1, and O-rings 40 are inserted in the grooves 12-1, 22-1 to tightly contact the lap rolls W1, W2 that are supplied at angles that narrow on the front and rear sides, respectively.

The outer diameter parts 12b and 22b of the gear bodies 11 and 21 are formed at an incline at one end, so that the wrap webs W1 and W2 can pass through the grooves 12-1 and 22-1 without any interference at right angles to the wrap webs W1 and W2.

The grooves 12-1, 22-1 of the gear body 11 on which the spur gear 12 of the first gear shaft 10 is formed and the gear body 22 on which the spur gear 22 of the second gear shaft 20 is formed, and the O-ring 40 elastically fitted in the grooves are formed in a mutually offset shape as shown in the attached FIG. 8, so that the wrap raw rolls W1, W2 are pressurized and sealed at two points through the O-ring 40.

Alternatively, as shown in the attached FIG. 7, the grooves 12-1, 22-1 and O-rings 40 formed on the outer diameter portions 12b, 22b of the spur gears 12, 22 are formed to face each other, so that the wrap roll can be pressurized and sealed even when the O-rings 40 are in maximum contact with each other.

The O-ring 40 is made of a urethane rubber material and is designed to provide a certain amount of cushioning and elasticity to tightly seal the wrap rolls W1 and W2.

Meanwhile, as one embodiment of the present invention, as shown in the attached FIG. 9, one or more pressure projections 12b-2 are formed at intervals on the outer diameter portion 12b of the spur gear 12 of the first gear shaft 10, and a seating groove 22b-2 having a width and depth is formed on the outer diameter portion 22b of the gear body 21 on which the spur gear 22 of the second gear shaft 20 is formed, and a band-shaped band ring 23 that contacts the pressure projections 12b-2 is inserted into the seating groove 22b-2 to perform pressure sealing of the wrap raw material.

On the other hand, it is preferable that the depth from the tip circle to the root circle of the gear portions 12a, 22a is 1.5 to 2.5 mm so that the spur gears 12, 22 mesh with each other.

For reference, the wrap roll is often used for packaging food, and sticks to non-electrically charged objects and electrically heated objects (non-conductors) due to the property of static electricity (static electricity generated on the surface when the wrap roll is unwrapped from the roll). In addition, since it is elastic, a force is generated that tries to return to its original shape, and the wrap roll sticks to the wrap roll while wrapping the sanitary napkin after use as described above, sealing it. Here, the wrap roll naturally packs the waste tightly due to the pressure of the cushioning material made of foam sponge material.

For reference, one of the spur gears of the waste collection box according to the present invention is structured so that power is transmitted by meshing rotation of a drive gear provided on the rotating shaft of a drive motor, and simple operation control is performed through the control unit of the collection box, and detailed explanations regarding this will be omitted below.

The function of sealing waste with the waste collection box of the present invention configured in this way is as follows:

Referring to FIG. 2, when waste P such as sanitary napkins is inserted into the inlet of the collection box, this is detected, and the detected signal operates the drive motor to rotate the spur gear 12 of the first gear shaft 10, which is installed on the support base 2 so that both ends can rotate, through the drive gear. As the spur gear 22 of the second gear shaft 20 meshes with the spur gear 12 of the first gear shaft 10 and rotates, the wrap rolls W1 and W2 with the waste P between them move downward, and their edges are pressurized and sealed.

As described above, the wrapping rolls W1 and W2 are sealed by the cushioning material 30 interposed between the spur gear 12 of the first gear shaft 10 and the spur gear 22 of the second gear shaft 20, which presses against the outside of the wrapping roll according to the shape of the waste P that has entered. The edges of the wrapping rolls W1 and W2 are pressurized at two points by the O-rings 40 on the outer diameter parts 12b and 22b of the spur gear 12 of the first gear shaft 10 and the spur gear 22 of the second gear shaft 20. The meshing of the gear parts 12a and 22a presses down the wrapping rolls W1 and W2, sealing three points on both ends of the wrapping rolls W1 and W2 in the traveling direction based on the waste P, allowing the cushioning material 30 to pass through.

In particular, one end of the outer diameter portion of the spur gears 12, 22 is formed to be inclined, and the wrap raw sheets W1, W2 are sealed as described above while forming a naturally opposed oblique angle rather than a right angle with the end of the outer diameter portion 12b, 22b, so that it is possible to prevent the tearing phenomenon that occurs when the wrap raw sheets are pushed by the end of the spur gear due to the meshing of the existing spur gear.

The sealing of the wrap rolls W1 and W2 according to the present invention is achieved by sealing at two points using two O-rings 40, and the meshing of the gear parts 12a and 22a is separated from the outer diameter part by being separated from the O-rings 40 provided in the grooves 12-1 and 22-1 on the outer diameter part 12b and 22b side, and the press-sealing is achieved by the meshing of the denser number of teeth of the gear parts 12a and 22a. This eliminates the tearing phenomenon that often occurs at the meshing edge of the right angle part of the spur gear as the wrap roll increases with the volume of waste, and achieves a stable seal that does not let out the smell of the waste.

In particular, the sealing by the gear parts 12a and 22a is such that the spur gear 12 of the first gear shaft 10 is formed in such a way that the tooth tip circle coincides with the outer diameter part 12a of the gear body 11, and the spur gear 22 of the second gear shaft 20 that meshes with the spur gear 12 of the first gear shaft 10 is formed in such a way that the tooth root circle coincides with the outer diameter part 22a of the gear body 21 and the tooth tip circle is protruding,

These gear parts 12a, 22a mesh with each other at a depth of 1.5 to 2.5 mm from the tip circle to the root circle, and with 80 to 150 dense gear teeth, resulting in a dense and excellent sealing effect.

In accordance with the present invention, in addition to the meshing of the gear parts 12a and 22a, the O-ring 40 is applied to the grooves 12-1 and 22-1 at the same position as the outer diameter parts 12b and 22b as shown in FIG. 7, and the O-ring 40 is provided in the grooves, so that the wrap roll can be sealed by elastic pressure contact between the O-rings, or as shown in FIG. 8, the O-ring 40 is interposed in the grooves 12-1 and 22-1 of the gear body 11 on which the spur gear 12 of the first gear shaft 10 is formed and the gear body 22 on which the spur gear 22 of the second gear shaft 20 is formed, and is arranged in a shifted form, so that the wrap rolls W1 and W2 are pressurized and sealed at two points through the O-ring 40, allowing for more stable sealing.

The attached FIG. 9 shows another embodiment of the present invention, in which one or more pressure projections 12b-1 are protruded from the outer diameter portion 12b of the spur gear 12 of the first gear shaft 10, and the outer diameter portion 22b of the gear body 21 on which the spur gear 22 of the second gear shaft 20 is formed is provided with a belt-shaped band ring 23 provided in a seating groove 22b-1 having a width and depth, and the wrap raw material W1, W2 is sealed by a structure in which the pressure projections 12b-1 press the wrap raw material W1, W2 by sandwiching the wrap raw material W1, W2 between the band ring 23, thereby sealing the wrap raw material W1, W2.

The band-shaped band ring 23 is made of elastic urethane rubber material, and the pressure projections 12b-1, which are relatively in close contact with the wrap roll, rotate while pressing against it, so that the same pressure sealing effect is achieved as described above.

As described above, the front of the pressurized and sealed wrap rolls W1 and W2 simultaneously forms two straight pressure sections B and a pressure section C formed by meshing gear sections, as shown in attached Figure 10, so it can be sealed better than sealing with existing gears to prevent odors, menstrual blood, etc. from leaking out to the edge of the wrap roll.

Therefore, the waste collection box can be used in a more hygienic manner inside a toilet booth or in a hospital treatment room, and it can also be used in a hygienic manner to prevent contamination of the waste collection box during the subsequent waste collection process, while also allowing for hygienic disposal without odor problems.

The structure for preventing sealing defects in the wrapping material of the present invention is a relatively simple structure, but when you consider how waste can be sealed and packaged without generating unpleasant odors and then collected, it is a technology that is sufficient to meet the requirements for a waste collection box.

As described above, the present invention has been described using specific details such as concrete components, limited examples, and drawings. However, this is merely provided to aid in a more general understanding of the present invention, and the present invention is not limited to the above examples. Various modifications and variations are possible from such descriptions by those with ordinary knowledge in the field to which the present invention pertains.

Therefore, the concept of the present invention should not be limited to the described embodiments, but should include not only the claims described below, but also all things that are equivalent to the claims or have equivalent modifications, etc., that fall within the scope of the concept of the present invention.

2: Support stand
W1, W2: Wrapping material 10: First gear shaft
11, 21: Gear body 12, 22: Spur gear
12a, 22a: gear portion 12b, 22b: outer diameter portion
12-1, 22-1: Concave groove 12b-1: Pressure protrusion
22b-1: Seat groove 20: Second gear shaft
23: Banding 30: Cushioning material
40: O-ring P: Waste
B, C: Sealed part

Claims (2)

In this waste sealing structure for a waste collection box, waste that enters between the wrap rolls (W1, W2) through an upper inlet of the collection box is pressed against each other by cushioning materials (30) provided on a first gear shaft (10) and a second gear shaft (20), both ends of which are supported so as to be rotatable on a support stand (2) provided inside the collection box, and the edges of the wrap roll are sealed by the meshing of spur gears (12, 22) provided on both ends of the first gear shaft (10) and the second gear shaft (20),
The spur gears (12, 22) on the first gear shaft (10) and the second gear shaft (20) are respectively constituted by gear bodies (11, 21) which are partitioned into gear portions (12a, 22a) and outer diameter portions (12b, 22b), and the spur gear (12) of the first gear shaft (10) is formed in such a manner that its tip circle coincides with the outer diameter portion (12a) of the gear body (11),
The spur gear (22) of the second gear shaft (20) which meshes with the spur gear (12) of the first gear shaft (10) is formed in such a manner that the bottom circle of the spur gear coincides with the outer diameter part (22a) of the gear body (21) and the tip circle of the spur gear (22) is protruded.
The gear portion (12a, 22a) is formed with a depth of 1.5 to 2.5 mm from the tip circle to the root circle to mesh with the spur gear (12, 22), a groove (12-1, 22-1) is formed in the outer diameter portion (12b, 22b) of the gear body (11, 21), and an O-ring (40) is interposed in the groove (12-1, 22-1) to tightly seal the lap raw material together with the meshing of the spur gear,
The waste sealing structure for a waste collection box is characterized in that the side of the outer diameter portion (12b, 22b) of the gear body (11, 21) opposite the gear portion (12a, 22a) is formed to be inclined, and is configured to be sealed while the wrap raw material passes through the groove (12-1, 22-1). The waste sealing structure of the waste collection box according to claim 1, characterized in that the grooves (12-1, 22-1) of the gear body (11) on which the spur gear (12) of the first gear shaft (10) is formed and the gear body (22) on which the spur gear (22) of the second gear shaft (20) is formed are offset from each other so that the pressurized sealing of the wrap roll through the O-ring (40) is performed at two points.

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