JP7506430B1 - Debris scattering prevention device - Google Patents

Abstract

[Problem] To provide a device for preventing scattering of debris that is generated when a processor processes an object to be processed by the processor and is easy for the processor to use. [Solution] The device for preventing scattering of debris 1 is a device for preventing scattering of debris that is generated when a processor processes an object to be processed by the processor, and is equipped with a cup-shaped main body 10 having a space inside where the processor's hands 300, 400 can perform processing, and the side of the cup-shaped main body 10 is provided with first and second cuts 11, 12 aligned in the circumferential direction extending from the edge toward the bottom, into which different fingers of one hand 300 of the processor can be inserted from the outside to the inside of the main body 10, and a third cut 13 extending from the edge toward the bottom, into which the fingers of the processor's other hand 400 can be inserted, and the bottom of the cup-shaped main body 10 is provided with a through hole that penetrates the main body 10 from the outside to the inside. [Selected Figure] Figure 1

Description

The present invention relates to a device for preventing scattering of debris that occurs when a worker processes an object to be processed.

When dental prostheses such as dentures or crowns are processed with a processing tool such as a handpiece, debris such as cutting chips and dust is generated. Patent Document 1 shows a device for collecting cutting chips generated when cutting dental prostheses. This device is provided with a tray for collecting cutting chips, and the collected cutting chips are discharged from an outlet provided in the tray.

JP 2017-158762 A

The tray shown in Patent Document 1 is said to be provided with a stand to prevent it from falling over. Alternatively, if the tray has legs or is otherwise capable of standing on its own, it is said that a stand to prevent it from falling over is not necessary. In this way, the device shown in Patent Document 1 is intended to be placed in a specific location so that it can stand on its own.

However, when a dental prosthesis is cut and polished during dental treatment to adjust it to fit the patient's mouth, the device shown in Patent Document 1, which requires a separate anti-tip stand, is not easy for dentists or other processors to use. This is because the space around the dental chair used for dental treatment is limited. Even if the device is made self-supporting, it may become unstable if an external force is applied by touching it with a hand during processing.

The present invention has been made in consideration of the above, and aims to provide a debris scattering prevention device that appropriately prevents scattering of debris generated by processing of a workpiece by a processor and is easy for the processor to use.

In order to achieve the above object, the present invention provides a debris scattering prevention device that prevents scattering of debris caused by processing of a workpiece by a processor, and includes a cup-shaped main body having a space inside where the processor can perform processing by hand, and the side of the cup-shaped main body is provided with first and second circumferentially aligned notches extending from the edge toward the bottom, into which different fingers of one hand of the processor can be inserted from the outside to the inside of the main body, and a third notch extending from the edge toward the bottom, into which fingers of the other hand of the processor can be inserted, and the bottom of the cup-shaped main body is provided with a through hole that penetrates from the outside to the inside of the main body.

The debris scattering prevention device according to the present invention is supported by the hand of a processor, allowing the processor to process the workpiece. By performing work inside the cup-shaped main body, debris generated during processing remains inside the main body, preventing the debris from scattering. The debris remaining inside the main body is discharged through the through hole. In addition, the processor can easily support the main body and perform processing by inserting his or her finger into a notch provided in the main body. In this way, the debris scattering prevention device according to the present invention appropriately prevents debris generated by the processor's processing of the workpiece from scattering, and is easy for the processor to use.

The debris scattering prevention device may further include a tubular portion that communicates with the through hole from the outside of the main body. With this configuration, debris generated during processing can be discharged from the tubular portion, making it easy to dispose of the debris.

The depths of the first and second cuts may be different from each other. With this configuration, the fingers of one of the processor's hands can be more stabilized when inserted into the first and second cuts. This makes it easier for the processor to use the debris scattering prevention device.

The tip of the third cutout may be stepped. With this configuration, for example, when multiple fingers of the processor's other hand are inserted into the third cutout, the fingers of the processor's other hand can be more stabilized. This makes it even easier for the processor to use the debris scattering prevention device.

The present invention provides a device for preventing scattering of debris that occurs when a processor processes a workpiece and is easy to use for the processor.

1 is a diagram showing a state in which a debris scattering prevention device according to an embodiment of the present invention is used; 1 is a left perspective view of a debris scattering prevention device according to an embodiment of the present invention; 1 is a perspective view of a debris scattering prevention device according to an embodiment of the present invention, seen from the right side. 1 is a left side view of a debris scattering prevention device according to an embodiment of the present invention. FIG. 2 is a right side view of the debris scattering prevention device according to the embodiment of the present invention. 1 is a plan view of a debris scattering prevention device according to an embodiment of the present invention. FIG. 2 is a bottom view of the debris scattering prevention device according to the embodiment of the present invention. 1 is a cross-sectional view of a debris scattering prevention device according to an embodiment of the present invention.

Below, an embodiment of the debris scattering prevention device according to the present invention will be described in detail with reference to the drawings. Note that in the description of the drawings, the same elements are given the same reference numerals, and duplicated explanations will be omitted. Also, the dimensional ratios of the drawings do not necessarily match those in the description.

Figure 1 shows the debris scattering prevention device 1 according to this embodiment. The debris scattering prevention device 1 is a device that prevents scattering of debris generated by processing of the workpiece 100 by a processor (operator). In this embodiment, the debris scattering prevention device 1 is used during dental treatment. The workpiece 100 is a dental prosthesis 100 such as a denture or a crown. The processor is a dentist or a dental technician. The processing is a process of cutting or polishing the dental prosthesis 100 with a processing tool 200 such as a handpiece in order to shape the dental prosthesis 100. When such processing is performed on the dental prosthesis 100, debris such as cutting debris or dust is generated. The debris scattering prevention device 1 is a device that holds the debris so that it does not scatter onto the floor or the like.

The debris scattering prevention device 1 is used, for example, when a dentist cuts and polishes a dental prosthesis 100 during dental treatment in a dental chair to adjust it to fit the patient's oral cavity. As shown in FIG. 1, the debris scattering prevention device 1 is used while being held by the hand of the processor. Therefore, the debris scattering prevention device 1 can be used even when processing is performed near a dental chair where there is no space to place the device.

The debris scattering prevention device 1 is not limited to the above-mentioned usage form. For example, the debris scattering prevention device 1 may be used in cases other than dental treatment, and may be used for objects and processes other than those mentioned above. Furthermore, the debris that the debris scattering prevention device 1 prevents from scattering may be something other than cutting chips or dust, so long as it is generated by processing.

Next, the configuration of the debris scattering prevention device 1 according to this embodiment will be described. In the following description, the top and bottom of the debris scattering prevention device 1 will be based on the state shown in FIG. 1. In addition, the left and right of the debris scattering prevention device 1 will be defined as the side that the processor's left hand 300 comes into contact with in FIG. 1 as the left, and the side that the processor's right hand 400 comes into contact with in FIG. 1 as the right.

Figures 2 and 3 are perspective views of the debris scattering prevention device 1 from the left and right sides, respectively. Figures 4 and 5 are side views of the debris scattering prevention device 1 from the left and right sides, respectively. Figure 6 is a plan view of the debris scattering prevention device 1 from above. Figure 7 is a bottom view of the debris scattering prevention device 1 from below. Figure 8 is a bottom view of the debris scattering prevention device 1 from below. Figure 7 is a bottom view of the debris scattering prevention device 1 from below. Figure 8 is a cross-sectional view of the debris scattering prevention device 1 taken along line A-A in Figure 6.

The debris scattering prevention device 1 comprises a main body 10 and a tubular part 20. The main body 10 is a cup-shaped member having a space inside where the worker can work with his/her hands. The shape of the main body 10 is, for example, a shape having a roughly circular side (peripheral wall) and a hemispherical bottom. However, the shape of the main body 10 does not necessarily have to be this shape, and it may be a cup-shaped shape having a space inside where the worker can work with his/her hands. As shown in FIG. 1, the debris scattering prevention device 1 is used with the large opening side of the main body 10 facing up and the bottom side facing down. The size of the main body 10 may be determined taking into consideration the size of the dental prosthesis 100 to be processed and the size of the worker's hand. For example, the size of the main body 10 is such that a complete denture fits snugly inside and processing work is easy.

The side of the cup-shaped main body 10 is provided with multiple notches (notches, grooves) 11-13 through which the worker can insert his/her fingers from the outside to the inside of the main body 10 so that the worker can perform processing inside the main body 10. The notches 11-13 are slit-shaped extending from the edge (top) of the main body 10 toward the bottom. Specifically, the side of the main body 10 is provided with first and second notches 11, 12 arranged in the circumferential direction into which different fingers of one hand of the worker can be inserted, and a third notch 13 into which the fingers of the other hand of the worker can be inserted. Note that the fingers do not necessarily need to be inserted into the notches 11-13 from the outside of the main body 10, but may be inserted into the notches 11-13 from the top of the main body 10.

As shown in FIG. 1, in this embodiment, the dental prosthesis 100 to be processed is held by the fingers of the left hand 300 inside the main body 10. Also, a processing tool 200 such as a handpiece is held by the fingers of the right hand 400 inside the main body 10. The handpiece is generally held in a manner called a pen grip. In the pen grip, the tool 200 is held by three fingers, the thumb, index finger, and middle finger, and the remaining ring finger and little finger are added. Note that the processing tool 200 may be any tool other than a handpiece as long as it is capable of processing the dental prosthesis 100. Also, the processing tool 200 may be held in a manner other than a pen grip.

In this embodiment, the first and second incisions 11 and 12 are for inserting the fingers of the left hand 300 of the processor as shown in FIG. 1. Specifically, the first incision 11 is for inserting the index finger and middle finger of the left hand 300 arranged vertically (from the edge to the bottom). However, depending on the size of the dental prosthesis 100 to be processed, only the index finger may be inserted into the first incision 11, or the index finger, middle finger, and ring finger may be inserted. The second incision 12 is for inserting the thumb of the left hand 300. The third incision 13 is for inserting the fingers of the right hand 400 of the processor as shown in FIG. 1. Specifically, the third incision 13 is for inserting multiple fingers (e.g., the little finger, ring finger, and middle finger) arranged circumferentially of the right hand 400. When viewed from above, the side of the main body 10 is divided by three notches 11 to 13.

The positions of the three cuts 11 to 13 may be determined taking into consideration the ease of processing by the processor and the ease of preventing scattering of debris. The circumferential spacing of the three cuts 11 to 13 (the spacing of the three cuts 11 to 13 when the main body 10 is viewed from above) is narrowest between the first cut 11 and the second cut 12, next widest between the second cut 12 and the third cut 13, and widest between the third cut 13 and the first cut 11. As shown in FIG. 6, when the main body 10 is viewed from above, the direction of the center of the third cut 13 from the center of the main body 10 is the 4 o'clock direction on a clock, and the direction of the side of the main body 10 between the first and second cuts 11 and 12 is the 8 o'clock direction. The side between the first and second cuts 11, 12 is thicker than the side between the second cut 12 and the third cut 13, and the side between the third cut 13 and the first cut 11. This ensures that the strength of the narrowest side between the first and second cuts 11, 12 is sufficient.

The width of each of the notches 11 to 13 is such that the above-mentioned fingers can be inserted (inserted and removed) and corresponds to the above-mentioned fingers. The width of the second notch 12 is such that the thumb of the left hand 300 can be smoothly inserted and removed. In addition, the gap between the side of the notches 11 to 13 and the finger when the finger is inserted into the notch 11 to 13 may be made as small as possible so that the waste generated by the processing does not scatter to the outside of the main body part 10. As described above, the third notch 13 is intended for inserting multiple fingers arranged in the circumferential direction, so the width of the third notch 13 is wider than the widths of the first and second notches 11 and 12. In addition, the width of the third notch 13 is slightly wider on the edge (upper part) side of the main body part 10. This is to make it easier to handle the processing tool 200. In addition, each of the notches 11 to 13 is wide enough to allow the finger to be tilted during processing.

The depth of each of the notches 11 to 13 is such that the inserted finger can fit entirely into the notches 11 to 13. That is, when the finger is inserted into the notches 11 to 13, the upper end (side) of the finger is lower than the edge of the part of the main body 10 where the notches 11 to 13 are not provided. By raising the edge of the main body 10 in this way, it is possible to prevent waste generated during processing from scattering from the upper part of the main body 10. As described above, the first notch 11 is designed to insert multiple fingers arranged vertically, so the depth of the first notch 11 is deeper than the second notch 12. Note that the depth of each of the notches 11 to 13 may be such that a part of the inserted finger can fit into the notch 11 to 13, and does not necessarily have to be such that the inserted finger can fit entirely.

The tip of the third notch 13 is stepped. That is, the edge of the tip of the third notch 13 has a wavy shape. This is to match the shape of the multiple fingers that will be inserted into the third notch 13. For example, when a subscriber holds a processing tool such as a handpiece in a pen grip with his or her right hand, the fingers (for example, the little finger, ring finger, and middle finger that are inserted into the third notch 13 as described above) will fit along the tip (edge) of the third notch 13.

The circumferential distance between the first and second notches 11, 12 into which the fingers of the left hand 300 are inserted is such that the dental prosthesis 100 can be grasped with the fingers inserted into the respective notches 11, 12, i.e., the thumb, index finger, and middle finger. In addition to the left hand 300 grasping the dental prosthesis 100 in this manner, the side of the main body 10 between the first and second notches 11, 12 becomes like a handle for the debris scattering prevention device 1, and the debris scattering prevention device 1 itself is held. However, the configuration for grasping the dental prosthesis 100 and holding the debris scattering prevention device 1 may be other than that described above.

As shown in Figures 3, 6 and 8, a through hole 14 is provided at the bottom of the cup-shaped main body 10, penetrating from the outside to the inside of the main body 10. The through hole 14 is a hole for discharging debris generated by processing the dental prosthesis 100 inside the main body 10 from the inside to the outside of the main body 10. As shown in Figure 6, the through hole 14 is provided at the center of the bottom of the main body 10. The through hole 14 is a round hole of a size that allows debris to be discharged smoothly. Note that the position, size and shape of the through hole 14 provided at the bottom of the main body 10 do not necessarily have to be as described above, as long as they are suitable for the purpose of discharging debris.

The tubular portion 20 is a tubular member that communicates with the through hole 14 of the main body portion 10 from the outside of the main body portion 10. The tubular portion 20 is a member for discharging debris that has entered the through hole 14 from inside the main body portion 10 to the outside of the debris scattering prevention device 1. The tubular portion 20 is formed integrally with the main body portion 10 at the through hole 14 on the outside of the main body portion 10. However, the tubular portion 20 may be formed separately from the main body portion 10 and connected to the main body portion 10. For example, the tubular portion 20 is a foot-shaped member that extends from the bottom of the main body portion 10. The tubular portion 20 has a hole with openings at both ends. One opening of the hole of the tubular portion 20 communicates with the opening on the outside of the through hole 14 of the main body portion 10. The other opening of the hole of the tubular portion 20 is directed toward the outside of the debris scattering prevention device 1.

A vacuum is connected to the tubular section 20 to suck up and collect debris generated inside the main body section 10. In FIG. 1, a vacuum 500 is connected to the tubular section 20. By sucking with the vacuum 500, debris generated inside the main body section 10 passes through the through hole 14 of the main body section 10 and the tubular section 20 and is collected by the vacuum 500.

The debris scattering prevention device 1 is provided with a trap 15 in the through hole 14 of the cup-shaped main body 10 and inside the tubular part 20 to prevent the passage of the workpiece. The trap 15 is a member provided throughout the through hole 14 of the main body 10 and the hole of the tubular part 20. The trap 15 is cross-shaped when viewed from the direction in which the hole extends. Even if the dental prosthesis 100 falls into the main body 10 during processing, the trap 15 prevents the dental prosthesis 100 from being discharged outside the debris scattering prevention device 1. In other words, the trap 15 acts as a strainer.

The shape of the trap 15 does not necessarily have to be the above shape (cross-shaped), but may be any shape that can prevent the dental prosthesis 100 from being discharged to the outside of the debris prevention device 1 depending on the shape of the dental prosthesis 100, etc. Furthermore, the location where the trap 15 is provided does not have to be the through hole 14 of the cup-shaped main body 10 or the entire inside of the tubular portion 20, but may be any of the above locations that can prevent the dental prosthesis 100 from being discharged to the outside of the debris prevention device 1.

The debris scattering prevention device 1, which includes the main body 10 and the tubular portion 20, has a generally funnel-shaped shape as a whole. The main body 10 and the tubular portion 20 are made of a material that is not easily deformed during use and is not easily deformed by heat even when sterilized by autoclave. By enabling sterilization, the debris scattering prevention device 1 can be used repeatedly. The main body 10 and the tubular portion 20 may be made of a transparent material. If the debris scattering prevention device 1 is made transparent to allow light to pass through, brightness during processing work is ensured, and processing can be performed in a state where the processor can easily see. However, the main body 10 and the tubular portion 20 may be colored with a color other than transparent. Specifically, polymethylpentene may be used as the material. However, other materials may be used. The main body 10 and the tubular portion 20 may be antibacterial. The main body 10 and the tubular portion 20 may be made of different materials. The above is the configuration of the debris scattering prevention device 1 according to this embodiment.

Next, a method of using the debris scattering prevention device 1 according to this embodiment will be described. First, the processor inserts the tubular portion 20 of the debris scattering prevention device 1 into the vacuum 500 to connect it. Next, the processor, while holding the dental prosthesis 100 between the thumb of the left hand 300 and the index and middle fingers of the left hand 300, inserts the index and middle fingers of the left hand 300 into the first notch 11 from the top of the main body 10, and simultaneously inserts the thumb of the left hand 300 into the second notch 12. Alternatively, the processor inserts the index and middle fingers of the left hand 300 into the first notch 11, and then uses the right hand 400 to insert the dental prosthesis 100 into the inside of the main body 10 from the top, and holds the dental prosthesis 100 with each finger in the same manner as above.

The tips of the thumb, index finger, and middle finger of the left hand 300 are now positioned in the space inside the main body 10. At the same time, the base of the thumb and the bases of the index finger and middle finger of the left hand 300 pinch the side of the main body 10 between the first notch 11 and the second notch 12. In other words, the side of the main body 10 between the first notch 11 and the second notch 12 becomes like a handle of the debris scattering prevention device 1. The ring finger and little finger of the left hand 300 are naturally placed on the outer side of the main body 10.

Next, the processor inserts a processing tool 200 such as a handpiece and the fingers of the right hand 400 holding it into the third notch 13 from the top of the main body 10. The tip of the processing tool 200 is now positioned in the space inside the main body 10.

While looking at the inner space from the top of the main body 10, the processor processes the dental prosthesis 100 with the processing tool 200 while operating the vacuum. The debris generated during processing and the water sprayed from the processing tool 200 run down the inner wall of the main body 10 to the bottom, and are sucked into the vacuum through the through hole 14 and the tubular part 20 of the main body 10. At this time, the side between the first cut 11 and the second cut 12 also plays a role in preventing the debris and sprayed water from scattering between the fingers of the left hand. Some processing tools 200 have a water injection system, which sprays water during use to prevent the scattering of dust and the like. The processing tool 200 does not have to have the function of spraying water.

After using the debris scattering prevention device 1, that is, after the processing of the dental prosthesis 100 is completed, the debris and moisture adhering to the debris scattering prevention device 1 are wiped off and sterilization is performed using an autoclave. This post-processing allows the debris scattering prevention device 1 to be used again when processing another dental prosthesis 100. This is how to use the debris scattering prevention device 1 according to this embodiment.

In this embodiment, the chip-scattering prevention device 1 is supported by the hand of the processor, and the processor can process the dental prosthesis 100. Therefore, since the chip-scattering prevention device 1 does not need to be installed in a specific location, it can be used even when processing is performed near a dental chair where there is no space to place the device. By performing work inside the cup-shaped main body 10, chips generated by processing are blocked by the side of the main body 10 and remain inside the main body, preventing the chips from scattering. The chips remaining inside the main body are discharged from the through hole 14. In addition, when water is sprayed from the processing tool 200, the water can be prevented from scattering as well as the chips. Note that when processing the dental prosthesis 100, the side between the first cut 11 and the second cut 12 prevents the chips and sprayed water from scattering between the fingers of the left hand, and further, the fingers of the processor and the processing tool 200 block the cuts 11 to 13, suppressing the scattering of the chips and sprayed water from the cuts 11 to 13.

In addition, the processor can easily support and process the main body 10 by inserting his/her fingers into the notches 11 to 13 provided on the main body 10. Specifically, when the dental prosthesis 100 is grasped by inserting the fingers of the left hand 300 into the first and second notches 11 and 12, the base of the fingers of the left hand 300 inevitably pinches the side of the main body 10 between the first and second notches 11 and 12. This makes it possible to hold the dental prosthesis 100 with the left hand 300, fix the main body 10 with the left hand 300, and stabilize the position of the left hand 300 at the same time. As a result, it is possible to prevent the entire chipping prevention device 1 from becoming unsteady during processing of the dental prosthesis 100, and to prevent the position of the left hand 300 from becoming unstable. In addition, the ring finger and little finger that are not inserted into the first and second notches 11 and 12 are naturally placed on the outer side of the main body 10 to support the main body 10. This further prevents the entire debris scattering prevention device 1 from shaking and also further stabilizes the position of the left hand 300.

In addition, while the dental prosthesis 100 is being processed, the worker's fingers are supported by (leaning against) the edges of the incisions 11-13. This allows the worker to perform the processing with a more stable hand position. In this way, this embodiment can provide a debris scattering prevention device 1 that appropriately prevents scattering of debris caused by the processing of the dental prosthesis 100 by the worker and is easy for the worker to use.

Also, as in this embodiment, the debris scattering prevention device 1 may further include a tubular portion 20 that communicates with the through hole 14 from the outside of the main body portion 10. With this configuration, debris generated by processing can be discharged from the tubular portion 20, making it easy to dispose of the debris. For example, by including the tubular portion 20 as described above, the debris scattering prevention device 1 can be easily connected to the vacuum 500. However, the debris scattering prevention device 1 does not necessarily need to include the tubular portion 20, and it is sufficient that the device is configured to allow debris to be discharged from the through hole 14.

Also, as in this embodiment, the depths of the first and second cuts 11, 12 may be different from each other. As described above, different fingers are inserted into the first and second cuts 11, 12. Therefore, with this configuration, the fingers of one hand of the processor that are inserted into the first and second cuts 11, 12 can be more stabilized. This makes it even easier for the processor to use the debris scattering prevention device 1. However, the depths of the first and second cuts 11, 12 may be the same.

Also, as in this embodiment, the tip of the third notch 13 may be stepped. For example, as described above, steps may be provided to fit the shape of the fingers depending on the number and position of the fingers inserted into the third notch 13. With this configuration, for example, when multiple fingers of the processor's other hand are inserted into the third notch 13 as described above, the inserted fingers of the processor's other hand can be more stabilized. This makes it even easier for the processor to use the debris scattering prevention device 1. However, the tip of the third notch 13 does not have to have the above shape.

In addition, by positioning the circumferential direction of the cuts 11 to 13 on the main body 10 as in this embodiment (the direction of the center of the third cut 13 is the 4 o'clock direction, and the direction of the side of the main body 10 between the first and second cuts 11 and 12 is the 8 o'clock direction), the processor can perform processing work in a stable position with arms appropriately tucked in.

In addition, because the main body 10 is cup-shaped, cleaning can be easily performed from the open top. In addition, as in this embodiment, the bottom surface of the main body 10 is semispherical and inclined toward the through-hole 14, so that debris and water smoothly fall into the through-hole 14 and are sucked in by the vacuum.

In this embodiment, the first and second cuts 11, 12 are configured to accommodate the fingers of the left hand 300, and the third cut 13 is configured to accommodate the fingers of the right hand 400. This is on the assumption that a right-handed processor will be performing the processing. However, the positions of the cuts 11 to 13 may be reversed left to right on the assumption that a left-handed processor will be performing the processing. In other words, the first and second cuts 11, 12 may be configured to accommodate the fingers of the right hand, and the third cut 13 may be configured to accommodate the fingers of the left hand. In that case, the positions and sizes of the cuts 11 to 13 may be determined accordingly.

Alternatively, a cup-shaped member without the incisions 11-13 may be prepared, and the portions of the member with the incisions 11-13 may be cut out with a cutter or the like to create the incisions 11-13 and serve as the main body 10. In this case, cutting lines may be made in the member at the positions where the incisions 11-13 will be created.

The debris scattering prevention device of the present disclosure has the following configuration.
[1] A device for preventing scattering of chips that occurs when a processor processes an object to be processed, comprising:
A cup-shaped main body having a space inside where the processor can manually process the product is provided,
A side surface of the cup-shaped main body is provided with first and second circumferentially aligned notches extending from an edge toward a bottom, into which different fingers of one hand of the processor can be inserted from the outside to the inside of the main body, and a third notch extending from the edge toward the bottom, into which fingers of the other hand of the processor can be inserted;
The device for preventing scattering of debris has a through hole at the bottom of the cup-shaped main body, the through hole penetrating from the outside to the inside of the main body.
[2] The debris scattering prevention device according to [1], further comprising a tubular portion communicating with the through hole from the outside of the main body portion.
[3] The device for preventing scattering of debris according to [1] or [2], wherein the depths of the first and second cuts are different from each other.
[4] The device for preventing scattering of debris according to any one of [1] to [3], wherein the tip of the third cutout has a stepped shape.

1...Debris scattering prevention device, 10...Main body, 11...First notch, 12...Second notch, 13...Third notch, 14...Through hole, 15...Trap, 20...Tubular part.

Claims (5)

A device for preventing scattering of chips that occurs when a processor processes an object to be processed, comprising:
A cup-shaped main body having a space inside where the processor can manually process the product is provided,
A side surface of the cup-shaped main body is provided with first and second circumferentially aligned notches extending from an edge toward a bottom, into which different fingers of one hand of the processor can be inserted from the outside to the inside of the main body, and a third notch extending from the edge toward the bottom, into which fingers of the other hand of the processor can be inserted;
The device for preventing scattering of debris has a through hole at the bottom of the cup-shaped main body, the through hole penetrating from the outside to the inside of the main body. The debris scattering prevention device according to claim 1, further comprising a tubular portion that communicates with the through hole from the outside of the main body. The debris scattering prevention device according to claim 1 or 2, wherein the depths of the first and second cuts are different from each other. The debris scattering prevention device according to claim 1 or 2, wherein the tip of the third notch has a stepped shape. 3. The device for preventing scattering of debris according to claim 1 or 2, wherein the first cut has a depth sufficient to accommodate a plurality of fingers aligned in the direction in which the cut extends.

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