TWM576093U - Blade breaking device - Google Patents

Abstract

A blade breaking device is provided with a storage box and a folder, wherein the storage box has a closed bottom and an open top, and the inside of the storage box is provided with a chamber communicating with the top, the storage box a fitting opening communicating with the chamber is disposed at the top, and the folding device is disposed at the assembly opening in combination with the storage box, and the folding device has a curved knife groove portion recessed on one side surface. The inner wall surface of the curved portion of the curved knife includes an arc-shaped bottom wall surface and two side wall surfaces extending along two sides of the curved bottom wall surface to define an arc-shaped concave receiving space, the arc-shaped concave surface The groove portion is provided at a middle portion of the inner wall surface with a through hole communicating with the chamber and the arcuate concave accommodating space, which not only shortens the space distance between the shank outlet and the knife edge, and It can provide the effect of covering the leading edge of the shank of the existing utility knife, effectively preventing the occurrence of debris ejection during the blade breaking process, thereby providing a blade breaking device capable of completely covering, avoiding the ejection of debris and increasing the safety of use. .

Description

Blade breaking device

The present invention relates to a blade breaking device, and more particularly to a blade breaking device capable of completely covering, avoiding the ejection of debris and increasing the safety of use.

When the utility knife is used for a long time, it is easy to passivate or damage the blade due to collision or wear. Since the blade of the existing utility knife is composed of a plurality of adjacent connected pieces, when the existing utility knife is located at the front end When the blade needs to be replaced, the blade of the front end of the existing utility knife is inserted into a folding device, and the blade is relatively moved by the folding device to break the blade located at the front end of the existing utility knife, leaving the rear A sharply shaped sheet can be used.

However, the existing folding device can provide the effect of a broken blade, but the existing folding device has a V-shaped groove for inserting the blade, and a cutting edge is provided at the bottom of the groove of the cutting groove. Although the groove can provide a pair of insertion effects, due to the V-shaped groove structure, when the blade is inserted into the sipe, the leading edge of the knives of the existing utility knife will contact the peripheral edges of the sipe. It is impossible to extend into the grooving groove, so that there is a space distance between the shank outlet of the shank and the edge of the groove at the bottom of the sipe, the space of the section cannot be shortened, and the sides of the sipe are V-shaped. The circumference of the shank does not provide a covering effect on the leading edge of the shank. Therefore, when the existing utility knife wants to break the blade, the blade debris generated during the breaking process is easily covered by the shank edge. Moreover, the space distance between the knife edge of the shank and the knife edge of the groove bottom of the sipe is ejected, which causes a safety problem in use, and is improved.

Therefore, in view of the fact that the existing folding device has the defects and the insufficiency of safety doubts when the original folding device is used in actual use, and the blade scrap is easy to be ejected, after continuous experiment and research, a new type of defect can be improved. In this creation, the blade breaking device of the present invention is mainly through a simplified structural arrangement, which not only shortens the space distance between the knife edge and the knife edge, but also provides a coating of the existing utility knife. The effect of the leading edge of the shank effectively prevents the occurrence of debris ejection during the blade breaking process, thereby providing a blade breaking device capable of completely covering, avoiding the ejection of debris and increasing the safety of use.

Based on the above object, the present invention is to provide a blade breaking device, which is provided with: a storage box having a closed bottom and an open top, and the inside of the storage box is provided with a space communicating with the top a storage opening at the top of the storage box; and a folding device, the folding device is disposed in combination with the storage box, and the folding device is disposed at one side The concave concave portion is provided with an arc-shaped knife groove portion, and the inner wall surface of the curved knife groove portion comprises an arc-shaped bottom wall surface and two side wall surfaces extending along two sides of the curved bottom wall surface to form an arc shape The concave accommodating space is provided with a through hole communicating with the chamber and the arc-shaped concave accommodating space at a middle portion of the curved bottom wall surface.

Further, the blade breaking device as described above, wherein the inner wall surface of the curved portion of the curved blade has a U-shaped, semi-circular shape or a smiling curved structure.

Still further, the blade breaking device as described above, wherein each side wall surface of the curved portion of the curved blade has a concave curved surface or an inclined surface.

Preferably, the blade breaking device as described above, wherein the arc-shaped knife groove portion is formed in an upright shape along an outer side surface of the folder, and the top side of the curved blade portion is provided There is a guiding opening, and the opening direction of the guiding opening is perpendicular to the opening direction of the inlet.

Preferably, the blade breaking device as described above, wherein the folding device has a guiding rib protruding from the inner surface adjacent to the inlet, the guiding rib is provided with a guiding opening opposite to the inlet. The guide ribs provide an effect of being aligned with the inlet.

Preferably, the blade breaking device as described above, wherein the top side of the folder is provided with a groove portion for dialing a finger to displace the folder from the storage box, the groove The opening direction of the groove portion is parallel to the opening direction of the guide opening.

Preferably, the blade breaking device as described above, wherein the folding device is respectively provided with a hand-held recess on the opposite outer side faces for gripping fingers to pull the folder away from the Storage box.

Preferably, the blade breaking device as described above, wherein the storage box is provided with a cover at a side of the mounting opening at the top portion away from the groove portion of the curved blade, the cover can be opposite to the storage The box is pulled and can be placed against the folder, so that the folder is located between the cover and the storage box to shield the arc-shaped concave receiving space, the cover is facing the assembly opening a latching rib is protruded from the free end of the surface and away from the assembly opening, and when the lid is in contact with the flap, the latching rib of the lid is located at the groove portion of the curved cutter The arc-shaped concave accommodating space shields the inlet.

According to the above technical means, the blade breaking device of the present invention has at least the following advantages and effects: 1. When the blade breaking device of the present invention is used, not only can the inner wall surface of the groove portion of the curved blade be curved. The structural aspect of the shank of the utility knife can be extended to the inner wall surface of the groove portion of the curved knives via the accommodating space, thereby not only shortening the shank exit edge and the curved knives a spatial distance between the arcuate bottom wall faces of the groove portion, and the leading edge of the shank is located between the two side wall faces, such that the front edge of the shank is oscillated relative to the folder The arc-shaped bottom wall surface of the arc-shaped knife groove portion can be covered by the two side wall surfaces, so that the debris generated during the breaking process can be effectively shielded and concentrated in the storage compartment of the storage box, thereby effectively avoiding Safety problems caused by debris ejection. 2. The folding device of the creating blade breaking device can be detachably combined with the storage box, so that the user can separate the folding device from the storage box and then remove the discarded piece collected in the container. . 3. The detachable folding device of the blade breaking device of the present invention allows the user to assemble different types (arc, U-shaped, and on the storage box according to the structural type or size of the utility knife that is to be broken. A semicircular or smiling curve is used for the folding device. 4. The cover of the blade breaking device of the present invention can be firmly combined with the folding device by means of the fastening point being engaged with the fastening groove, thereby effectively preventing the waste piece in the storage box from being passed through Drop the entrance. 5. The blade breaking device of the present invention uses a folding device made of wear-resistant metal, which can greatly increase the service life of the blade, and the use of a storage box made of plastic can greatly reduce the cost of manufacturing.

In order to understand the technical features and practical functions of the present invention in detail and can be implemented according to the contents of the specification, the following further describes the preferred embodiment as shown in the following figure:

The present invention provides a blade breaking device, as shown in FIG. 1 , the blade breaking device is provided with a storage box 10 and a folder 20 , wherein the folding device 20 is detachably combined with the storage box 10 And the storage box 10 and the folding device 20 can be made of different materials respectively. Further, the storage box 10 can be made of plastic, and the folding device 20 can be made of wear-resistant metal. .

Please further refer to FIG. 2 to FIG. 5 , the storage box 10 is a long rectangular box body having a closed bottom and an open top. The inside of the storage box 10 is provided with a a storage chamber 11 having a top portion, the storage box 10 is provided at the top portion with a fitting opening 12 which is disposed obliquely and communicates with the chamber 11 , and the fitting opening 12 is respectively provided with a guiding surface concavely at two opposite sides 121. Further, the storage box 10 is respectively recessed with an elongated strip-shaped groove 13 on the inner surface of the opposite sides of the two guiding surfaces 121. Preferably, the storage box 10 is at the top. A latching cover 14 is disposed on one side of the mounting opening 12, and the cover 14 is an L-shaped bendable elongated structure, and the cover 14 is facing the mounting opening 12. A latching rib 141 is protruded from the free end of the surface and away from the mounting opening 12, and the latching rib 141 is provided with a fastening bump 142 at the free end. Preferably, the cover 14 is at the latching rib. A shank 143 is disposed at an outer periphery of the 141, and the storage case 10 is formed between the shank 143 and the click rib 141. An escape groove 15.

Please refer to FIG. 4 to FIG. 6 , the folding device 20 is disposed at the assembly opening 12 in combination with the storage box 10 , and the folding device 20 can be opposite to the storage box 10 at the cover 14 . After being externally pulled, the storage box 10 is separated from the storage box 10. The folding device 20 is a slightly square block, and the folding device 20 has an abutting strip respectively protruding from opposite sides of the mounting opening 12. 21, the folding device 20 can be disposed at the mounting opening 12 of the storage box 10 through the two abutting strips 21, preferably, the folding device 20 is adjacent to both sides of the two abutting strips 21 A card strip 22 is respectively disposed on the upper portion, and when the folder 20 is combined with the storage box 10, the two strips 22 can be respectively guided by the two guiding surfaces 121, respectively, and the storage box The two card slots 13 of the card are coupled to each other, so that the folder 20 can be stably disposed at the mounting opening 12 of the storage box 10. Further, the two card strips 22 and the two card slots 13 are The position and manner of the folding device 20 and the storage box 10 can be adjusted to each other, and only need to be able to be mutually engaged to allow the folding device 20 to be engaged with the storage case 10.

As shown in FIG. 4 to FIG. 6 , the folding device 20 is vertically recessed on the outer side surface away from the cover 14 to form an arc-shaped knife groove portion 23 , and the curved knife groove portion 23 . The inner wall surface includes a curved bottom wall surface 230 and two side wall surfaces 232 extending along two sides of the curved bottom wall surface 230 to define a curved concave receiving space 231 for inserting the front edge of the shank 41. The inner wall surface of the curved groove portion 23 has a U-shaped, semi-circular or smile-shaped structure. Further, the side wall surfaces 232 of the curved groove portion 23 are a concave curved surface or an inclined surface, the arc-shaped knife groove portion 23 is provided at a middle portion of the curved bottom wall surface 230 through a receiving inlet 233 communicating with the chamber 11 and the curved concave receiving space 231. As shown in FIG. 2 and FIG. 5, the folding device 20 is provided with a fastening portion 24 at a front edge of the bottom portion of the bottom portion of the curved blade portion 23, and the fastening portion 24 is adjacent to the positioning portion. A fastening groove 241 is defined in the inner side surface of the inlet 233. When the cover 14 abuts the folding device 20, the locking rib 141 of the cover 14 is located at the curved groove portion 23 of the curved blade. Curved concave The space 231 is disposed and shielded from the opening 233, and the fastening protrusion 142 is engaged with the fastening groove 241, and the fastening portion 24 is located in the escape groove 15, so that the folding device 20 is located. The arcuate concave accommodating space 231 is shielded between the cover 14 and the storage case 10.

Further, the folding device 20 has a guiding rib 25 protruding from the inner surface of the inner surface 233. The guiding rib 25 is provided with a guiding opening 251 which is opposite to the receiving opening 233. The guiding is shown in FIG. The rib 25 can provide an alignment effect for aligning the blade mark 422 of the front end of the blade 42 of the utility knife 40 inserted into the guide opening 251 with the insertion opening 233. It can be understood that the blade of the utility knife 40 is understood. 42 must be inserted obliquely into the upright-shaped inlet 233 to allow the knife mark 422 to be aligned with the inlet 233, while the guide rib 25 at this time has the effect of guiding the blade 42 of the utility knife 40 obliquely to make the knife The mark 422 does not need to be smoothly aligned with the inlet 233 by user adjustment. Preferably, the flapper 20 is provided with an indication mark 26 on an outer side surface, and the indicator mark 26 can be a symbol or a character or both a symbol and a character.

Referring to FIG. 3, FIG. 5 and FIG. 8, the top side of the curved knife groove portion 23 is provided with a guiding opening 27 for guiding the front edge of the shank 41 of the utility knife 40 obliquely inserted. The curved concave accommodating space 231 has an opening direction perpendicular or almost perpendicular to the opening direction of the inlet 233; further, as shown in FIGS. 3 and 5, the crease 20 is adjacent The top side of the guiding opening 27 is provided with a groove portion 28 for urging a user's finger to thereby displace the folder 20 from the storage case 10, the opening direction of the groove portion 28. Preferably, the flaps 20 are respectively provided with a hand-held recess 29 on the opposite outer side surfaces for holding the fingers to fold the folds. The sheet 20 is detached from the storage case 10.

When the blade breaking device of the present invention is used, please refer to FIG. 2 and FIG. 3, and the button 143 is pulled to extend the button 142 with the button rib 141. The fastening groove 241 of the setting portion 24 is separated, so that the cover 14 can be pulled away from the folding device 20, so that the curved knife groove portion 23 is exposed outside the storage box 10, as shown in the figure. 7 and FIG. 8 , the sheet 421 at the front end of the blade 42 of the utility knife 40 is inserted into the chamber 11 of the storage case 10 through the accommodating space 231 , the inlet 233 and the fitting opening 12 , and The front end of the blade 42 is located in the guiding opening 251 of the guiding rib 25, wherein the inner wall surface of the curved groove portion 23 has an arc-shaped structural shape, so that the knife of the utility knife 40 The leading edge of the shank 41 can be extended to the curved bottom wall surface 230 of the curved blade groove portion 23 via the accommodating space 231, so that not only the shank 41 and the curved blade groove portion 23 can be shortened. The spatial distance between the inlets 233 of the curved bottom wall surface 230 is such that the leading edge of the shank 41 is located between the two side wall surfaces 232, thereby providing a knife covering the utility knife 40. 41 of the leading edge effect.

Referring to FIG. 9, when the utility knife 40 generates a swing angle θ with respect to the flapper 20 (θ≧20°), the sheet body 421 at the front end of the blade 42 located in the folder 20 will be as shown in the figure. As shown in FIG. 8 , deformation and breakage between the inlet 233 and the guide port 251 can be broken and stored in the chamber 11 of the storage case 10 . During the swinging of the utility knife 40 relative to the folding device 20, the leading edge of the shank 41 can be covered by the curved bottom wall surface 230 of the curved knife groove portion 23 and covered by the two side wall surfaces 232. The debris generated during the breaking process can be effectively shielded and concentrated in the chamber 11 of the storage box 10, thereby effectively avoiding the safety problem caused by the ejection of the debris.

According to the above technical means, the blade breaking device of the present invention can not only pass through the inner wall surface of the curved blade groove portion 23 in an arc-shaped structural state, so that the tool holder 41 of the utility knife 40 is used. The leading edge can be extended to the inner wall surface of the curved blade groove portion 23 via the accommodating space 231, and the blade bottom edge of the shank 41 and the curved bottom wall surface 230 of the curved blade groove portion 23 can be shortened. The spatial distance between the shank 41 is located between the two side wall surfaces 232 so that the front edge of the shank 41 can be close to the knives 40. The curved bottom wall surface 230 of the curved knife groove portion 23 is covered by the two side wall surfaces 232, so that the debris generated during the breaking process can be effectively shielded and concentrated in the chamber of the storage case 10. 11 , effectively avoiding the safety problem caused by the ejection of the debris; further, the folding device 20 is detachably coupled with the storage case 10, so that the user can connect the folding device 20 to the storage case 10 After the separation, the waste sheets 421 collected in the chamber 11 are removed.

Further, the detachable folding device 20 allows the user to assemble the curved knives having different shapes on the storage case 10 according to the structural type or size of the utility knife 40 for which the blade 42 is to be broken. The inner wall surface (arc, U-shaped, semi-circular or smile-curved) of the groove portion 23 is used for use; further, the cover 14 can pass through the fastening projection 142 and the fastening groove The 241 is fastened in combination with the folding device 20, and the waste sheet 421 in the storage case 10 can be effectively prevented from falling out through the inlet 233; in addition, a folding device made of wear-resistant metal is used. 20, can greatly increase the life of its use, and the use of plastic storage box 10, can significantly reduce the cost of manufacturing, in order to provide a complete coating, to avoid debris ejection and increase the safety of the use of blade break Device.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Anyone having ordinary knowledge in the technical field may use the present invention without departing from the scope of the technical solution proposed by the present invention. Equivalent embodiments of the various changes or modifications made by the technical content disclosed herein, and without departing from the technical scope of the present invention, are still within the scope of the present technical solution.

10‧‧‧Storage box

11‧‧ ‧ room

12‧‧‧ Assembly port

13‧‧‧ card slot

14‧‧‧ lid

141‧‧‧Carlis

142‧‧‧Withholding bumps

143‧‧‧ Pull handle

15‧‧‧ escaping slot

20‧‧‧Folder

21‧‧‧Abutment

22‧‧‧Cards

23‧‧‧Shaped knife groove

230‧‧‧ curved bottom wall

231‧‧‧Arc-shaped concave accommodating space

232‧‧‧ side wall

233‧‧‧ Entrance

24‧‧‧Detention Department

241‧‧‧ buckle slot

25‧‧‧ Guide ribs

251‧‧‧guide mouth

26‧‧‧Indication logo

27‧‧‧ Guide opening

28‧‧‧ Groove

29‧‧‧Handheld depression

40‧‧‧ utility knife

41‧‧‧Knife

42‧‧‧blade

421‧‧‧Sheet

422‧‧‧Knife marks

Θ‧‧‧ swing angle

Figure 1 is a perspective view of the blade breaking device of the present invention. Figure 2 is a side cross-sectional view of the inventive blade breaking device. Fig. 3 is a perspective view showing the opening of the lid of the blade breaking device of the present invention. Figure 4 is a top cross-sectional view of the inventive blade breaking device taken along line A-A of Figure 2; Figure 5 is an exploded perspective view of the blade breaking device of the present invention. Figure 6 is a cross-sectional side view of the inventive blade breaking device taken along line B-B of Figure 2; Fig. 7 is a schematic view showing the operation of the blade breaking device of the present invention for breaking a blade of a utility knife. Figure 8 is a partially enlarged cross-sectional side view showing the blade of the utility blade breaking device breaking the utility knife. Figure 9 is a partially enlarged plan view showing the blade of the utility blade breaking device breaking the utility knife.

Claims (10)

A blade breaking device is provided with: a storage box having a closed bottom and an open top, the inside of the storage box is provided with a chamber communicating with the top, the storage box a fitting opening communicating with the chamber is disposed at the top portion; and a folding device disposed at the assembly opening in combination with the storage box, the folding device having a concave surface on one side An arc-shaped knife groove portion, the inner wall surface of the curved knife groove portion comprises an arc-shaped bottom wall surface and two side wall surfaces extending along two sides of the arc-shaped bottom wall surface to enclose an arc-shaped concave shape In the space, a middle portion of the curved bottom wall surface is provided with a through hole communicating with the chamber and the arc-shaped concave receiving space. The blade breaking device of claim 1, wherein the curved bottom wall surface and the side wall surface of the inner wall surface of the curved blade portion have a U-shaped structure. The blade breaking device of claim 1, wherein the curved bottom wall surface and the side wall surface of the inner wall surface of the curved knife groove portion are in a semicircular configuration. The blade breaking device of claim 1, wherein the curved bottom wall surface and the side wall surface of the inner wall surface of the curved knife groove portion have a smile curve shape. The blade breaking device of claim 1, wherein each of the side wall surfaces of the curved knife groove portion has a concave curved surface or an inclined surface. The blade breaking device according to claim 1, wherein the curved blade groove portion is formed in an upright shape along an outer side surface of the folder, and a top side of the curved blade portion is provided with a guiding opening. The opening direction of the guiding opening is perpendicular to the opening direction of the inlet. The blade breaking device of claim 6, wherein the folding device has a guiding rib protruding from the inner surface adjacent to the inlet, the guiding rib penetrating through a guiding port opposite to the inlet, the guiding rib Can provide an effect that is aligned with the inlet. The blade breaking device of claim 6, wherein the top side of the folder is provided with a groove portion for dialing a finger to displace the folder from the storage box, the groove portion The opening direction is parallel to the opening direction of the guiding opening. The blade breaking device of claim 1, wherein the folding device is respectively provided with a hand-held recess on the opposite outer side faces for gripping fingers to pull the folder away from the storage case. The blade breaking device according to any one of claims 1 to 9, wherein the storage case is provided with a lid on a side of the fitting opening at the top portion away from the groove portion of the curved blade, the lid can be Pulling relative to the storage box and being able to abut the folding device, the folding device is disposed between the cover and the storage box to shield the arcuate concave accommodating space, the cover is facing the assembly a latching rib is protruded from an inner surface of the opening and away from the free end of the mounting opening, and the latching rib of the lid is located in the curved knife groove when the lid is in contact with the flap The curved concave accommodating space of the portion is shielded from the inlet.