Multifunctional chicken bone scissors

By designing a hinged and locking mechanism for the cutting unit of the multifunctional chicken bone shears, the system enables convenient switching between scissors and a cutting blade, solving the problems of complex operation and low cutting accuracy in existing technologies, and providing an efficient cutting solution.

CN223971748UActive Publication Date: 2026-03-06YANGJIANG ZENTTOP IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing chicken bone shears require disassembling parts when converted into a cutting blade, which is complicated, prone to loss, and has low cutting accuracy, making the cutting operation difficult.

Method used

A multifunctional chicken bone shear is designed, which uses two shearing units connected by a hinge shaft. Combined with a torsion spring and locking pin mechanism, it can flexibly switch between scissors and a cutter. The blade of the shearing unit is designed as a symmetrical double-edged blade to increase cutting accuracy.

Benefits of technology

It enables convenient switching between scissors and a cutting knife without disassembling parts, offers high cutting precision, is easy to operate, and produces excellent cutting results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pair of multifunctional chicken bone scissors which comprises two shearing units, each shearing unit comprises a blade, each blade comprises a blade part and a handle part, and a hinge hole is formed between the blade part and the handle part of each blade; the hinging shaft penetrates through the hinging holes of the two shearing units, so that the hinging between the two shearing units is realized; the opposite portions of the cutting edge portions of the two cutting unit blades respectively comprise a cutting edge, the cutting edge portion of the first cutting unit blade is located below the cutting edge portion of the second cutting unit blade, and the cutting edge portion of the first cutting unit blade comprises a cutting edge below the cutting edges. According to the multifunctional chicken bone scissors, the two shearing units can be directly used as a cutter after being closed together, the two shearing units can be used as scissors after being opened, parts do not need to be disassembled and assembled in the conversion process, and the conversion mode is simple and convenient.
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Description

[Technical Field]

[0001] This utility model relates to kitchen scissors, and more particularly to a multifunctional chicken bone scissors. [Background Technology]

[0002] Chicken bone shears are a kitchen tool specifically designed for handling chicken bones. Often referred to as "kitchen shears," they feature a sturdy and durable design that allows for easy cutting of chicken bones and cutting of chicken meat. They can also trim excess fat or fascia, making them suitable for use in the kitchen.

[0003] Utility model patent CN202420636424.6 discloses a chicken bone scissors, including a right scissor handle and a left scissor handle. A detachable locking plate is fixed in a groove on the right scissor handle by a detachable locking plate nail, and a detachable locking plate spring connects the detachable locking plate to the groove. When the right and left scissor handles are used together as scissors, the locking plate limits the left scissor handle to prevent it from falling off the right scissor handle. By pressing the detachable locking plate, the limitation on the left scissor handle is released, and the left scissor handle can be detached from the right scissor handle for use as a cutting knife. This utility model requires disassembly of parts to be used as a cutting knife, making the conversion method relatively complicated. Moreover, after disassembly, it must be reassembled when needed. If the disassembled right scissor handle and other parts are not stored properly over a long period of time, they are easily lost. Furthermore, the blade of the left scissor handle is an off-center blade, resulting in low cutting precision and making cutting operations difficult. [Summary of the Invention]

[0004] The technical problem to be solved by this utility model is to provide a multifunctional chicken bone shear that can be easily converted into a cutting blade.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is a multifunctional chicken bone shear, including two shearing units. Each shearing unit includes a blade, which includes a cutting edge and a shank. A hinge hole is provided between the cutting edge and the shank of the blade. A hinge shaft passes through the hinge hole of the two shearing units to realize the hinge between the two shearing units. The opposite parts of the cutting edges of the blades of the two shearing units each include a scissor blade. The cutting edge of the first shearing unit blade is located below the cutting edge of the second shearing unit blade, and the cutting edge of the first shearing unit blade includes a cutting blade below the scissor blade.

[0006] The multi-functional chicken bone shears described above have a double-edged cutting blade; the first shearing unit blade includes a toothed blade at the front of the shear blade and an arc-shaped concave blade at the rear of the shear blade.

[0007] The multi-functional chicken bone shears described above have a hinged joint between the two shearing units, which includes a shear spring opening mechanism and a shear closing locking mechanism.

[0008] The multifunctional chicken bone shears described above have a shear spring opening mechanism, which includes a torsion spring. The inner side of the shearing unit blade includes an annular mounting groove for the torsion spring. The annular mounting groove is coaxial with the hinge hole. The outer edge of the annular mounting groove includes an end foot groove for arranging the torsion arms of the torsion spring. The torsion spring is arranged in the annular mounting grooves of the two shearing unit blades, and the two torsion arms of the torsion spring are respectively arranged in the end foot grooves of the two annular mounting grooves. The elastic force of the torsion spring causes the two shearing units to open.

[0009] The multi-functional chicken bone shears described above include a plastic handle, with the blade's shank embedded in the plastic handle.

[0010] The multi-functional chicken bone shears described above have blade handles riveted to plastic handles by a plurality of rivets, and the top of the plastic handle of the first shearing unit and the bottom of the plastic handle of the second shearing unit are covered with silicone layers.

[0011] The multi-functional chicken bone shears described above have the rear end of the blade of the cutting unit connected to the front end of the handle. The rear section of the handle of the second cutting unit is embedded in the plastic handle. The upper part of the front section of the second cutting unit's handle includes a groove with a rearward opening for the scissors closing and locking mechanism. The front end of the plastic handle of the first cutting unit includes a downward-opening slot. When the two cutting units are closed, the upper part of the front section of the second cutting unit's handle enters the slot. The front part of the plastic handle of the first cutting unit includes a transversely open, flat, elongated hole that passes transversely through the slot. The scissors closing and locking mechanism includes a locking pin that passes through the flat, elongated hole. The handle of the first cutting unit's blade includes a clearance hole for the locking pin. When the two cutting units are closed, the locking pin moves forward along the long axis of the flat, elongated hole and engages in the groove on the upper part of the front section of the second cutting unit's handle. When the two cutting units are open, the locking pin moves backward along the long axis of the flat, elongated hole and disengages from the groove on the upper part of the front section of the second cutting unit's handle.

[0012] The multi-functional chicken bone shears described above have a locking pin comprising a rivet, a damping spring, and a spring washer. Each end of the flat elongated hole includes a flat elongated annular groove. The spring washer sits on the bottom of one of the annular grooves. The rivet passes through the damping spring, the spring washer, and the flat elongated hole. Each end of the rivet includes a rivet head. One end of the damping spring rests on the spring washer, and the other end rests on the bottom surface of a rivet head.

[0013] The multi-functional chicken bone shears described above include a sheath, which comprises a plastic sheath and a metal clip. The plastic sheath includes two side plates. At the opening at the rear of the plastic sheath, the first side plate includes an arc-shaped groove with a central angle greater than 180°. When the cutting edges of the two shearing unit blades are inserted into the plastic sheath, the circular first rivet head at the end of the hinge shaft is engaged in the arc-shaped groove. The fixed end of the metal clip is fixed to the rear end of the second side plate of the plastic sheath by screws, with the opening of the metal clip facing forward. The second side plate includes an elongated hole with its long axis arranged along the front-back direction, and the elongated hole includes a concave beam arranged along the long axis.

[0014] The multi-functional chicken bone shears described above have a sheath including a magnet and a second side plate including a magnet groove. The magnet is embedded in the magnet groove. When the cutting edges of the two shearing unit blades are inserted into the plastic sheath, the magnet is close to the second rivet head at the end of the hinge shaft.

[0015] This utility model of multifunctional chicken bone shears can be used directly as a cutter when the two shearing units are put together, and can be used as scissors when the two shearing units are opened. The conversion process does not require disassembly or assembly of parts, and the conversion method is simple and convenient. [Image Description]

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a front view of a multifunctional chicken bone shear according to an embodiment of this utility model.

[0018] Figure 2 This is a top view of the multifunctional chicken bone shears according to an embodiment of this utility model.

[0019] Figure 3 This is a rear view of the multifunctional chicken bone shears according to an embodiment of this utility model.

[0020] Figure 4 This is a perspective view of the multifunctional chicken bone shears according to an embodiment of the present invention.

[0021] Figure 5 This is a front view of the multifunctional chicken bone shears after removing the sheath, according to an embodiment of this utility model.

[0022] Figure 6 This is a rear view of the multifunctional chicken bone shears after the sheath has been removed, according to an embodiment of this utility model.

[0023] Figure 7 This is a perspective view of the multifunctional chicken bone shears after removing the sheath, according to an embodiment of this utility model.

[0024] Figure 8 This is a perspective view of the multifunctional chicken bone shears after the sheath has been removed, according to another embodiment of this utility model.

[0025] Figure 9 This is a front view of the multifunctional chicken bone shears in the open state according to an embodiment of this utility model.

[0026] Figure 10 This is a perspective view of the second shearing unit in an embodiment of this utility model.

[0027] Figure 11 This is a perspective view of the blade of the second shearing unit in an embodiment of this utility model.

[0028] Figure 12 This is a perspective view of the blade of the second shearing unit in an embodiment of this utility model.

[0029] Figure 13 This is a perspective view of the plastic handle of the second shearing unit in this embodiment of the present invention.

[0030] Figure 14 This is a perspective view of the first shearing unit in an embodiment of this utility model.

[0031] Figure 15 This is a perspective view of the blade of the first shearing unit in an embodiment of this utility model.

[0032] Figure 16 This is a perspective view of the blade of the first shearing unit in an embodiment of this utility model from another angle.

[0033] Figure 17 This is a perspective view of the plastic handle of the first shearing unit in this embodiment of the present invention.

[0034] Figure 18 This is a perspective view of the torsion spring according to an embodiment of the present invention.

[0035] Figure 19 This is a front view of the locking pin in an embodiment of this utility model.

[0036] Figure 20 This is a rear view of the multifunctional chicken bone shears in the open state according to an embodiment of this utility model.

[0037] Figure 21 yes Figure 20 AA section view in the image.

[0038] Figure 22 yes Figure 20 BB section view in the middle.

[0039] Figure 23 This is a perspective view of the scabbard according to an embodiment of the present invention.

[0040] Figure 24 This is a front view of the scabbard according to an embodiment of the present invention.

[0041] Figure 25 This is a rear view of the scabbard according to an embodiment of the present invention.

[0042] Figure 26 yes Figure 25 CC section view in the image.

[0043] Figure 27 This is a rear view of the plastic knife sheath according to an embodiment of the present invention. [Detailed Implementation]

[0044] The structure of the multifunctional chicken bone shears in this embodiment of the utility model is as follows: Figures 1 to 27 As shown, the device includes two cutting units 100 and 200. The first cutting unit 100 includes a blade 10 and a plastic handle 20. The blade 10 includes a cutting edge 11 and a shank 12, with the shank 12 embedded in the plastic handle 20. A hinge hole 13 is provided between the cutting edge 11 and the shank 12 of the blade 10. The second cutting unit 200 includes a blade 30 and a plastic handle 40. The blade 30 includes a cutting edge 31 and a shank 32, with the shank 32 embedded in the plastic handle 40. A hinge hole 33 is provided between the cutting edge 31 and the shank 32 of the blade 30.

[0045] The shank 12 of the blade 10 of the first shearing unit 100 is riveted to the plastic handle 20 by two rivets 19, and the shank 32 of the blade 30 of the second shearing unit 200 is riveted to the plastic handle 40 by two rivets 39. The top of the plastic handle 20 of the first shearing unit 100 is covered with a silicone layer 21, and the bottom of the plastic handle 40 of the second shearing unit is covered with a silicone layer 41.

[0046] The hinge shaft 51 passes through the hinge hole 13 of the first shearing unit 100 and the hinge hole 33 of the second shearing unit 200, thereby achieving a hinge between the two shearing units. Both ends of the hinge shaft 51 have circular rivet heads 511.

[0047] The blade 10 of the first cutting unit 100 has a scissor blade 14 on the upper edge of its cutting edge 11, and the blade 30 of the second cutting unit 200 has a scissor blade 34 on the lower edge of its cutting edge 31. When the multi-functional chicken bone shears are opened, the cutting edge 11 of the blade 10 of the first cutting unit 100 is located below the cutting edge 30 of the blade 30 of the second cutting unit 200, and the lower edge of the cutting edge 11 of the blade 10 of the first cutting unit 100 (below the scissor blade 14) has a cutting edge 15, which is a symmetrical double-edged blade.

[0048] The upper edge of the blade 11 of the first shearing unit 100 includes a toothed blade 141 located in front of the shear blade 14 and an arc-shaped concave blade 142 located in the rear of the shear blade 14.

[0049] The hinge joints of the two shearing units 100 and 200 are equipped with a shear spring opening mechanism and a shear closing locking mechanism.

[0050] The scissor spring opening mechanism includes a torsion spring 52. The inner side of the blade 10 of the first shearing unit 100 includes an annular mounting groove 16 for the torsion spring. The annular mounting groove 16 is coaxial with the hinge hole 13. The outer edge of the annular mounting groove 16 has an end foot groove 161 for arranging the first torsion arm 521 of the torsion spring 52.

[0051] The inner side of the blade 30 of the second shearing unit 200 includes an annular mounting groove 36 for a torsion spring. The annular mounting groove 36 is coaxial with the hinge hole 33. The outer edge of the annular mounting groove 36 has an end foot groove 361 for arranging the second torsion arm 522 of the torsion spring 52.

[0052] The two ends of the torsion spring 52 are respectively arranged in the annular mounting grooves 16 and 36 of the two shearing unit blades. The first torsion arm 521 of the torsion spring 52 is arranged in the end foot groove 161 of the annular mounting groove 16, and the second torsion arm 522 of the torsion spring 52 is arranged in the end foot groove 361 of the annular mounting groove 36. The elastic force of the torsion spring 52 causes the blades of the two shearing units to open.

[0053] The rear end of the blade of the cutting unit is connected to the front end of the handle. The rear section of the handle of the blade 30 of the second cutting unit 200 is embedded in the plastic handle 40 and riveted to the plastic handle 40 by two rivets 39. The upper part of the front section of the handle of the blade 30 of the second cutting unit 200 has a slot 35 for a scissor closing locking mechanism, with the opening of the slot 35 facing rearward. The front end of the plastic handle 20 of the first cutting unit 100 has a downward-opening slot 22. When the scissor blades of the two cutting units 100 and 200 are closed, the upper part of the front section of the handle 32 of the blade 30 of the second cutting unit 200 is inserted into the slot 22. The front part of the plastic handle 20 of the first cutting unit 100 has a horizontally through, flat, elongated hole 23 that passes horizontally through the slot 22.

[0054] The scissor closing locking mechanism includes a locking pin 60, which comprises a rivet 61, a damping spring 62, and a spring washer 63. The handle of the blade 10 of the first shearing unit 100 has a rivet clearance hole 17 corresponding to the elongated flat hole 23. Each end of the elongated flat hole 23 includes an elongated annular groove 231. The spring washer 63 sits on the bottom of one of the annular grooves 231. The rivet 61 passes through the damping spring 62, the spring washer 63, the clearance hole 17, and the elongated flat hole 23. Each end of the rivet 61 includes a rivet head 611. One end of the damping spring 62 rests against the spring washer 63, and the other end rests against the bottom surface of one rivet head 611. The other rivet head 611 sits on the bottom of the other annular groove 231. Under external force, the locking pin 60 can slide back and forth along the elongated flat hole 23, and the damping spring 62 keeps the locking pin 60 in a defined position within the elongated flat hole 23.

[0055] When the cutter is needed, the two cutting units are brought together, and the locking pin 60 is pushed forward along the long axis of the elongated hole 23. The rivet 61 engages in the slot 35 at the upper front section of the handle of the blade 30 of the second cutting unit 200. At this time, the two cutting units do not separate, and the plastic handles of the two cutting units come together to form the handle of the cutter. The multi-functional chicken bone shears can then be used as a cutter. When the scissors are needed, the locking pin 60 is pushed backward along the long axis of the elongated hole 23. The rivet 61 disengages from the slot 35 at the upper front section of the handle of the blade 30 of the second cutting unit 200, releasing the second cutting unit 200. Under the action of the torsion spring 52, the blades of the two cutting units open, and the multi-functional chicken bone shears can then be used as scissors.

[0056] When the multi-functional chicken bone shears need to be stored, they can be covered with a sheath 300. The sheath 300 includes a plastic blade sleeve 70, a metal clip 80, and a magnet 90. The plastic blade sleeve 70 includes two side plates 71. At the rear opening of the plastic blade sleeve 70, the first side plate 711 has a rearward-opening arc-shaped groove 72, and the central angle α corresponding to the arc-shaped groove 72 is greater than 180°. When the cutting edges of the two shearing unit blades are inserted into the plastic blade sleeve 70, a circular rivet head 511 at the end of the hinge shaft 51 is engaged in the arc-shaped groove 72. The fixing end of the metal clip 80 is fixed to the rear end of the second side plate 712 of the plastic blade sleeve 70 by a screw 81, and the opening of the metal clip 80 faces forward. The second side plate 712 has an elongated hole 73 with its long axis arranged in the front-back direction, and a concave beam 74 arranged in the long axis direction is located in the elongated hole 73. The concave beam 74 rests against the cutting edge of the shearing unit blade, which can increase the clamping force of the plastic blade sheath 70 on the multi-functional chicken bone shear blade.

[0057] The second side plate 712 has a circular magnet groove 75, in which a circular magnet 90 is embedded. When the blades of the two cutting units are inserted into the plastic blade sheath 70, the magnet 90 approaches another rivet head 611 at the end of the hinge shaft 51 to increase the adhesion of the plastic blade sheath 70 to the blade of the multi-functional chicken bone shears, making it less likely for the plastic blade sheath 70 to fall off the blade of the multi-functional chicken bone shears.

[0058] The multi-functional chicken bone shears of the above embodiments of this utility model can be used directly as a cutter when the two cutting units are joined together, and as scissors when the two cutting units are opened. The conversion process does not require disassembly or assembly of parts, and the conversion method is simple and convenient. In addition, the cutting blade of the multi-functional chicken bone shears of the above embodiments of this utility model can be a symmetrical double-edged blade, which ensures even distribution of cutting force during cutting, facilitates operation, reduces the risk of cutting off-center, and results in good cutting effect.

Claims

1. A multifunctional chicken bone shears, comprising two shearing units, each shearing unit including a blade, the blade including a cutting edge and a shank, a hinge hole between the cutting edge and the shank; a hinge shaft passing through the hinge holes of the two shearing units to achieve hinge between the two shearing units; each of the opposing portions of the cutting edges of the two shearing units includes a scissor blade, characterized in that, The blade of the first shearing unit blade is below the blade of the second shearing unit blade, and the blade of the first shearing unit blade comprises a cutter blade below the scissors blade.

2. The multi-purpose chicken bone scissors according to claim 1, characterized in that, The cutter blade is a double-sided blade; the blade of the first shearing unit blade comprises a tooth blade at the front of the scissors blade and an arc-shaped concave blade at the back of the scissors blade.

3. The multi-purpose chicken bone scissors according to claim 1, characterized in that, The hinge position of the two shearing units comprises a scissors elastic opening mechanism and a scissors closing locking mechanism.

4. The multi-purpose chicken bone scissors according to claim 3, characterized in that, The scissors elastic opening mechanism comprises a torsion spring, the inner side of the shearing unit blade comprises a ring-shaped mounting groove of the torsion spring, the ring-shaped mounting groove is coaxial with the hinge hole, and the outer edge of the ring-shaped mounting groove comprises an end foot groove for arranging the torsion arm of the torsion spring; the torsion spring is arranged in the ring-shaped mounting grooves of the two shearing unit blades, the two torsion arms of the torsion spring are arranged in the end foot grooves of the two ring-shaped mounting grooves respectively, and the elastic force of the torsion spring causes the two shearing units to open.

5. The multi-purpose chicken bone scissors according to claim 3, wherein, The shearing unit comprises a plastic handle, and the handle part of the blade is embedded in the plastic handle.

6. The multi-purpose chicken bone scissors according to claim 5, characterized in that, The handle part of the blade is riveted with the plastic handle through a plurality of rivets, the top of the plastic handle of the first shearing unit and the bottom of the plastic handle of the second shearing unit are covered with a silica gel layer.

7. The multi-purpose chicken bone scissors according to claim 5, characterized in that, The rear end of the blade of the shearing unit blade is connected with the front end of the handle part, the rear segment of the handle part of the second shearing unit blade is embedded in the plastic handle, the upper part of the front segment of the handle part of the second shearing unit blade comprises a clamping groove of the scissors closing locking mechanism which is opened backward; the front end of the plastic handle of the first shearing unit comprises an insertion slot which is opened downward, when the two shearing units are closed, the upper part of the front segment of the handle part of the second shearing unit blade enters into the insertion slot; the front part of the plastic handle of the first shearing unit comprises a transversely penetrating oblong hole which transversely penetrates the insertion slot; the scissors closing locking mechanism comprises a locking pin which penetrates the oblong hole, and the handle part of the first shearing unit blade comprises a locking pin avoiding hole; when the two shearing units are closed, the locking pin moves forward along the long axis direction of the oblong hole and is clamped in the clamping groove of the upper part of the front segment of the handle part of the second shearing unit blade; when the two shearing units are opened, the locking pin moves backward along the long axis direction of the oblong hole and is separated from the clamping groove of the upper part of the front segment of the handle part of the second shearing unit blade.

8. The multi-purpose chicken bone scissors according to claim 7, characterized in that, The locking pin comprises a rivet, a damping spring and a spring pad, the two ends of the oblong hole each comprise an oblong ring-shaped groove, the spring pad is seated on the groove bottom of one ring-shaped groove, the rivet penetrates the damping spring, the spring pad and the oblong hole, and the two ends of the rivet each comprise a rivet head; one end of the damping spring is abutted on the spring pad, and the other end is abutted on the bottom surface of one rivet head.

9. The multi-purpose chicken bone scissors according to claim 1, wherein, The sheath comprises a plastic sheath and a metal clasp, and the plastic sheath comprises two side plates; at the opening position of the rear part of the plastic sheath, the first side plate comprises an arc-shaped groove, and the corresponding central angle of the arc-shaped groove is greater than 180°; when the blades of the two shearing unit blades are inserted into the plastic sheath, the first rivet head of the end part of the hinge shaft which is circular is clamped in the arc-shaped groove; the fixed end of the metal clasp is fixed on the rear end of the second side plate of the plastic sheath through a screw, and the opening direction of the metal clasp faces forward; the second side plate comprises a long hole whose long axis is arranged in the front-rear direction, and the long hole comprises an inner recess beam which is arranged in the long axis direction.

10. The multi-purpose chicken bone scissors according to claim 9, characterized in that, The sheath comprises a magnet, the second side plate comprises a magnet groove, the magnet is embedded in the magnet groove, and when the blades of the two shearing unit blades are inserted into the plastic sheath, the magnet is close to the second rivet head of the end part of the hinge shaft.

Citation Information

Patent Citations

  • Chicken bone scissors

    CN222430798U