WO2020047891A1 - 一种带锁紧螺母的美工实用刀具 - Google Patents

一种带锁紧螺母的美工实用刀具 Download PDF

Info

Publication number
WO2020047891A1
WO2020047891A1 PCT/CN2018/105711 CN2018105711W WO2020047891A1 WO 2020047891 A1 WO2020047891 A1 WO 2020047891A1 CN 2018105711 W CN2018105711 W CN 2018105711W WO 2020047891 A1 WO2020047891 A1 WO 2020047891A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
locking
lock
groove
knob
Prior art date
Application number
PCT/CN2018/105711
Other languages
English (en)
French (fr)
Inventor
周晓刚
Original Assignee
宁波宏迪尺业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201821455434.0U external-priority patent/CN208867220U/zh
Priority claimed from CN201811037339.3A external-priority patent/CN109129582B/zh
Priority to BR112020006538-2A priority Critical patent/BR112020006538A2/pt
Priority to RU2020113339A priority patent/RU2779499C2/ru
Priority to ES18932627T priority patent/ES2959433T3/es
Priority to PL18932627.5T priority patent/PL3674042T3/pl
Application filed by 宁波宏迪尺业有限公司 filed Critical 宁波宏迪尺业有限公司
Priority to MX2020003734A priority patent/MX2020003734A/es
Priority to KR1020207009807A priority patent/KR102418863B1/ko
Priority to UAA202002549A priority patent/UA127353C2/uk
Priority to EP18932627.5A priority patent/EP3674042B1/en
Priority to US16/646,729 priority patent/US11267144B2/en
Publication of WO2020047891A1 publication Critical patent/WO2020047891A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/002—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use segmented blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B1/00—Hand knives with adjustable blade; Pocket knives
    • B26B1/02—Hand knives with adjustable blade; Pocket knives with pivoted blade
    • B26B1/04—Hand knives with adjustable blade; Pocket knives with pivoted blade lockable in adjusted position
    • B26B1/048—Hand knives with adjustable blade; Pocket knives with pivoted blade lockable in adjusted position with a locking member being slidable or movable along the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B1/00—Hand knives with adjustable blade; Pocket knives
    • B26B1/08—Hand knives with adjustable blade; Pocket knives with sliding blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/003—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use comprising retraction means for the blade or the blade holder

Definitions

  • the invention belongs to the technical field of art cutters, and particularly relates to an art cutter with a lock nut.
  • Utility knife is also commonly known as carving knife or wallpaper knife. It is a kind of fine arts and crafts knife. It is mainly used to cut soft texture. It is mainly composed of plastic handle and blade. It is a pull-type structure. There are also a few metal knife handles, and the blades are mostly beveled. They are broken with a blunt scribe line that can be slid along the body, and new blades appear for easy use. Among them, today's common utility knives mostly use a snap connection between a push button and a locking tooth groove on a blade chute to lock the blade; however, the locking structure is not particularly reliable.
  • the technical problem to be solved by the present invention is to provide a utility knife with simple structure, convenient operation, and lockable blade.
  • the present invention provides a utility knife with a lock nut, which includes a casing, a knife holder, a blade, a push button and a locking device; a front end of the casing is provided with a blade that can be retracted by the blade.
  • the side of the casing is provided with a chute for pushing the button.
  • the blade is matched and installed in the casing through a knife holder. The blade pushes the button to control its telescopic movement at the blade telescopic opening.
  • the locking device includes a stop Locking lever and adjusting device. The locking device adjusts the locking lever to lock the blade through the adjusting device.
  • the front side of the housing is provided with a knife holder sliding installation slot that penetrates its bottom end and the blade expansion port and matches the blade holder; the front side of the tool holder is provided with a blade slide slot that penetrates its two ends and matches the blade ,
  • the bottom surface of the front section of the blade chute is set as an upward inclined surface;
  • the blade holder is inserted into place from the rear end of the blade holder sliding installation slot of the casing and is fixedly connected to the casing; the rear end of the blade is matched with the push button and is movably installed in the blade slot of the blade holder, and the button is pushed It is exposed from the top notches of both the blade chute and the knife holder sliding installation groove; the lock lever is provided between the bottom surface of the blade chute and the blade, and the adjustment device is provided at the rear end of the housing; the lock lever passes the adjustment device Control to achieve telescopic movement in the blade chute, and the front end of the lock lever reduces the gap with the blade through the inclined surface and clamps and locks the blade.
  • the two parallel sides of the blade chute of the blade holder are provided with lock grooves symmetrically distributed;
  • the push button includes a bottom plate, a reset spring, a lock shaft and a pushing portion; a front end of the bottom plate is provided with a projection, and a rear end of the blade is provided Holes matching the projections; a rear side of the bottom plate is provided with a spring mounting groove matching the reset spring, and the spring mounting groove is also provided with a shaft positioning groove that intersects perpendicularly with the locking shaft; the pushing portion A V-shaped groove matching the locking shaft is provided at the bottom end;
  • the reset spring is matched and installed in the spring installation slot of the bottom plate;
  • the lock shaft is matched and installed in the shaft positioning slot and is placed on the reset spring, and a part of the lock shaft is higher than the side of the bottom plate;
  • the V-shaped groove is matched and sleeved on the part of the locking shaft that is higher than the bottom plate; the rear end of the blade and the push button are connected by matching projections and holes to realize the connection;
  • the adjusting device includes a locking screw, a locking bracket and a locking knob;
  • the locking bracket has a U-shaped structure, and the U-shaped open end of the locking bracket is matched with the rear end of the locking lever to be hinged;
  • the U-shaped closed end of the locking bracket is provided with a knob clamping groove matching the locking knob on the side, and the bottom of the U-shaped opening of the locking bracket
  • a screw sleeve connection hole penetrating the knob locking groove and matching the locking screw; the locking knob is matched and locked in the knob locking groove of the locking bracket, and the locking knob can be opened in the knob locking groove.
  • the locking screw is fixedly fixed to the rear end of the housing, and the thread section of the locking screw faces the opposite side of the blade expansion port.
  • the rear side of the knife holder sliding mounting groove is provided with a bracket movable groove matching the locking bracket; the locking lever is adjusted in the blade chute through the screw connection adjustment between the locking knob and the locking screw Perform telescopic movements.
  • two sides of the rear end of the housing are provided with a locking position groove
  • two sides of the locking bracket are provided with locking position blocks matching the locking position groove; when the front end of the locking lever is reduced by an inclined surface
  • the clearance between the locking position groove and the locking position block is a clearance fit.
  • the casing includes an outer casing and an inner casing; the blade telescopic opening and the knife holder sliding installation groove are both arranged on the outer casing, and the bottom of the groove of the knife holder sliding installation groove is provided with a shell socket matching the inner casing. Hole; the inner shell is provided with a knife holder chute matching the knife holder;
  • the knife shell After the inner shell is mated and fitted into the socket hole of the shell, the knife shell is fixed through the knife rack sliding installation slot and the knife rack slide groove at the same time to achieve the fixing of the inner shell on the outer shell.
  • the housing includes a left housing and a right housing that are fixed by splicing left and right; the inner wall of the right housing is provided with a knife holder sliding groove that penetrates the blade expansion opening and matches the knife holder; the top surface of the housing is provided with a through knife A button slide groove that supports a slide groove and matches the push button; an inner wall of the left housing is provided with an inclined protrusion near the blade expansion opening;
  • the blade is fixedly clamped on the blade holder, and the blade holder is matched with the blade to be mounted on the blade holder sliding groove; the push button is matched and connected to the blade holder and exposed from the button slide groove outside the casing; the locking lever is provided Between the inner wall of the left housing and the blade, the adjusting device is arranged at the rear end of the housing; the locking lever controls the telescopic movement of the blade toward the blade telescopic opening through the control of the adjusting device, and the front end of the locking lever is inclined Projection to reduce the gap between the blade and clamp the blade.
  • the push button includes a connecting rod and a pushing portion which are integrally connected, and the knife holder is provided with a linkage sleeve hole matching and connecting with the connecting rod; the top edge of the knife holder sliding groove of the right housing is provided with a plurality of uniform Positioning coggings distributed at intervals, the side of the connecting rod is provided with positioning protrusions matching the positioning coggings;
  • the push button is mated and sleeved on the linkage sleeve hole to achieve a linkage connection with the tool holder, and the axial direction of the linkage sleeve hole is in the same direction as the opening of the button chute; the push portion slides from the button The slot is exposed outside the housing; a reset elastic member with the same direction of force as the axial direction of the linkage sleeve hole is also provided between the push button and the tool holder, and the positioning projection is locked to one of the positioning members under the force of the reset elastic member.
  • the alveolar groove In the alveolar groove
  • the push button When the push button is pushed down, the push button moves downward against the resetting force of the reset elastic member, so that the positioning projection is separated from the positioning tooth groove, so that the push button can be pushed to drive the tool holder to carry the blade to expand and contract on the tool holder sliding groove. Movement; when the blade is retracted into place and the push button is released, the positioning projection is snapped into a positioning tooth groove under the resetting force of the resetting elastic member.
  • the blade is provided with a locking hole matching with the tool holder; a tool change button is also provided on the inner side wall of the left case, and one end of the tool change button is matched with the left case and is engaged. One end penetrates the left casing and protrudes from the outer side of the left casing, and the rear structure of the end of the tool change button protruding from the left casing is sleeve-matched with the locking hole.
  • the adjusting device includes a locking screw and a locking knob.
  • the locking knob is provided with a screw hole coaxial with the locking screw and matched with the locking screw.
  • the bottom end of the housing is provided with a matching screw.
  • Knob socket connection hole; the matching knob of the lock knob is fitted in the socket of the knob; the front end of the locking screw is fixedly connected with the rear end of the locking rod, and the rear end of the locking screw matches the threaded hole of the locking knob. Connection; the lock lever adjusts the screw connection between the lock knob and the lock screw to achieve its telescopic movement in the direction of the blade expansion port.
  • the present invention adopts a structure of a locking lever to clamp the blade, thereby achieving the function of blade locking, so that people can not use the blade to telescopically slide, eliminating the need for manual pressure to limit the operation of the blade. It can effectively avoid cutting errors caused by blade sliding or accidentally injuring people; and the locking adjustment by the rotating nut of the thread structure is simple in structure and convenient in operation.
  • FIG. 1 is a schematic structural diagram of a utility knife with a lock nut according to the present invention.
  • FIG. 2 is a schematic cross-sectional view of the structure of a utility knife with a lock nut according to the present invention.
  • Fig. 3 is a schematic exploded view of the structure of a utility knife with a lock nut according to the present invention.
  • FIG. 4 is a schematic structural diagram of a push button of a utility knife with a lock nut according to the present invention.
  • FIG. 5 is a schematic structural diagram of a shell of a utility knife with a lock nut according to the present invention.
  • FIG. 6 is a schematic structural diagram of another utility tool with a lock nut according to the present invention.
  • FIG. 7 is a schematic structural view of another utility tool with a lock nut for removing the left case according to the present invention.
  • FIG. 8 is a schematic structural diagram of another utility tool with a lock nut for removing the right shell of the present invention.
  • FIG. 9 is a schematic structural diagram of an art utility knife whose locking device is a knob with a top block according to the present invention.
  • FIG. 10 is a schematic structural diagram of a utility knife with an adjusting device of the present invention having a push button structure.
  • FIG. 11 is a schematic structural diagram of an adjusting device of a push button structure of the present invention.
  • FIG. 12 is a structural schematic diagram of an art utility knife whose adjusting device is a worm drive structure.
  • FIG. 13 is a schematic structural diagram of an adjusting device of a worm transmission structure according to the present invention.
  • FIG. 14 is a schematic structural diagram of an art utility knife with a structure of a locking handle of an adjusting device of the present invention.
  • FIG. 15 is a schematic structural diagram of an adjusting device for a locking handle structure of the present invention.
  • FIG. 16 is a schematic structural diagram of a locking handle structure of an adjusting device when a blade is locked in the present invention.
  • FIG. 17 is a schematic structural diagram of a lock-down handle structure of an adjusting device when the blade of the present invention is unlocked.
  • FIG. 18 is a schematic structural diagram of an art utility knife whose adjusting device of the present invention is a cam transmission structure.
  • FIG. 19 is a schematic structural diagram of an adjusting device of a cam transmission structure of the present invention.
  • FIG. 20 is a schematic structural side view of the adjusting device of the cam transmission structure of the present invention.
  • FIG. 1 is a schematic structural view of a utility knife with a lock nut according to the present invention
  • FIG. 2 is a schematic cross-sectional view of a utility tool with a lock nut according to the present invention
  • FIG. 3 is a lock nut with a lock nut according to the present invention
  • FIG. 4 is a schematic structural diagram of a push button of a utility knife with a lock nut according to the present invention
  • FIG. 5 is a housing of a utility knife with a lock nut according to the present invention
  • FIG. 6 is a schematic structural diagram of another utility tool with a lock nut according to the present invention
  • FIG. 7 is a schematic structural diagram of another utility tool with a lock nut according to the present invention to the left case
  • FIG. 8 It is a schematic diagram of the structure of another utility tool with a lock nut to the right shell of the present invention.
  • the structure of an art utility knife with a lock nut according to the present invention is shown in FIGS. 1, 2, 6, 7 and 8.
  • the art utility knife with a lock nut includes a housing 1, a knife holder 2, and a blade 3 , Push button 4 and locking device 5; the front end of the housing 1 is provided with a blade expansion opening 11 for the blade 3 to expand and contract, and the side of the housing 1 is provided with a chute for the push button 4 to move; the blade 3 passes through the knife
  • the rack 2 is matched and installed in the housing 1.
  • the blade 3 controls the telescopic movement of the blade expansion port 11 by pushing the button 4.
  • the locking device 5 includes a locking lever 51 and an adjusting device 52.
  • the locking device 5 passes The adjusting device 52 adjusts the locking lever 51 to lock the blade 3.
  • the invention adopts the above structure, and uses a locking lever to lock the blade, so that the blade of the product will not be shifted or shaken during cutting and cutting, which effectively improves the use stability of the product and avoids cutting caused by the blade's automatic expansion or shaking. Wrong or accidental injury, suitable for high-precision cutting, improving safety performance.
  • the front side of the housing 1 is provided with a knife holder sliding installation groove 12 penetrating through the bottom end and the blade expansion opening 11 and matching the knife holder 2;
  • the front side of the frame 2 is provided with a blade chute 21 that penetrates both ends thereof and matches the blade 3.
  • the front bottom surface of the blade chute 21 is set as an upward inclined surface 211; After the rear end of the rack sliding installation slot 12 is inserted into position, it is fixedly connected to the housing 1; the rear end of the blade 3 is mated and connected with the push button 4 and is movably installed in the blade chute 21 of the blade holder 2, and the push button 4 is removed from the blade The top notches of both the chute 21 and the knife holder sliding installation groove 12 are exposed; the locking lever 51 is provided between the bottom surface of the blade chute 21 and the blade 3, and the adjusting device 52 is provided at the rear end of the housing 1; The locking lever 51 is controlled by the adjusting device 52 to implement a telescopic movement in the blade chute 21, and the front end of the locking lever 51 reduces the gap with the blade 3 through the inclined surface 211 and clamps and locks the blade 3.
  • the invention achieves the purpose of clamping and locking the blade by shrinking the gap between the locking lever and the blade, effectively restricts the telescopic movement of the blade and the sloshing of the
  • the push button 4 includes a bottom plate 41, a reset spring 42, and a lock shaft. 43 and pushing portion 44; the front end of the bottom plate 41 is provided with a projection 411, and the rear end of the blade 3 is provided with a hole 31 matching the projection 411; the front side of the rear end of the bottom plate 41 is provided with an elastic plate installation matching the reset spring 42 A slot 412 is also provided with a shaft positioning groove 413 which intersects the locking shaft 43 perpendicularly to the elastic piece mounting groove 412; a bottom end of the pushing portion 44 is provided with a V-shaped groove 441 matching the locking shaft 43;
  • the reset spring 42 is matched and installed in the spring mounting groove 412 of the bottom plate 41; the lock shaft 43 is matched and installed in the shaft positioning groove 413 and disposed on the reset spring 42, and a part of the lock shaft 43 is higher than the side of
  • the reset elastic piece 42 may also be replaced by other elastic devices, such as a spring, a rubber material having elasticity, and the like.
  • the adjusting device 52 includes a locking screw 521, a locking bracket 522, and a locking knob 523;
  • the locking bracket 522 has a U-shaped structure, and the locking bracket 522 The U-shaped open end is articulated to match the rear end of the locking lever 51; among them, the locking bracket 522 can rotate relative to the locking lever 51 with the hinge of the two as the axis, thereby preventing the blocking bracket 522 from obstructing Replacement of the blade 3 occurs;
  • the locking knob 523 is provided with a screw hole 5231 coaxial with the locking screw 521;
  • the side of the U-shaped closed end of the locking bracket 522 is provided with the locking knob 523 matching knob clamping groove 5221, and the bottom of the U-shaped opening of the locking bracket 522 is also provided with a screw sleeve hole 5222 penetrating the knob clamping groove 5221 and matching the locking screw 521;
  • the locking knob 523 matches the card Connected to the knob clamping groove 52
  • the two sides of the rear end of the knife holder slide mounting groove 12 are provided with bracket movable grooves 121 that match the locking bracket 522; the locking lever 51 passes through the locking knob 523
  • the screw connection with the locking screw 521 is adjusted to realize the telescopic movement in the blade chute 21.
  • the adjusting device of the present invention uses a threaded connection structure, so that the displacement generated by the locking screw drives the locking lever to perform a telescopic movement along the direction in which the blade is telescopic, which is simple in structure, convenient to operate, and economical and practical.
  • the hinge structure between the rear end of the lock lever 51 and the U-shaped open end of the lock bracket 522 is disposed below the lock lever 51 and directly in front of the lock screw 521, so that the blade 3 can be replaced.
  • the hinge structure can use the locking screw 521 to limit the telescopic displacement of the locking rod 51, to prevent the locking bracket 522 from being pulled out of the housing 1 with the locking rod 51;
  • the locking screw 521 can It is fixed on the casing 1 by screws.
  • two sides of the rear end of the housing 1 are provided with locking position slots 13, and two sides of the locking bracket 522 are provided with locking position blocks 5223 matching the locking position slots 13. ;
  • the front end of the locking lever 51 reduces the gap with the blade 3 through the inclined surface 211 and clamps the locking blade 3, the gap between the locking position groove 13 and the locking position block 5223 is After long-term use, the structure is loose and the locking distance is reserved.
  • the locking position slot provided by the present invention and the matching locking position block can play a guiding and guiding role; wherein the locking position slot 13 may be a V-shaped opening slot.
  • the casing 1 includes an outer casing 14 and an inner casing 15; the blade expansion opening 11 and the knife holder sliding installation groove 12 are both disposed on the outer casing 14, and the knife holder sliding installation groove 12
  • the bottom of the groove is provided with a shell sleeve hole 122 matching the inner shell 15; the inner shell 15 is provided with a knife holder chute 151 that matches the knife holder 2; when the inner shell 15 is matched and sleeved on the shell After the body sleeve is connected in the hole 122, the tool holder 2 is inserted through the tool holder sliding installation groove 12 and the tool holder slide groove 151 at the same time to realize the fixing of the inner casing 15 on the outer casing 14.
  • the shell is provided as two parts of the outer shell and the inner shell, so that the two shell parts can be made of two materials; for example, the outer shell is made of a metal material, and the inner shell can be made of a plastic material.
  • This structure can not only ensure the firmness of the shell and avoid damage caused by bumping or falling, but also reduce the weight of the shell compared with the entire shell made of metal materials, so that people with low strength can easily use it.
  • the casing 1 includes a left casing 16 and a right casing 17 that are fixed by splicing left and right; an inner wall of the right casing 17 is provided with a blade expansion opening 11 and The tool holder slide groove 171 matching the tool holder 2; the top surface of the housing 1 is provided with a button slide slot 18 that penetrates the tool holder slide groove 171 and matches the push button 4; the inner wall of the left housing 16 is close to the blade expansion opening Elliptical projections 161 are provided at 11 places; the blade 3 is fixedly clamped on the blade holder 2, and the blade holder 2 carries the blade 3 and is mounted on the blade holder sliding groove 171 in a matching manner; the push button 4 is connected to the blade holder 2 in a coordinated manner.
  • the lock lever 51 is located between the inner wall of the left shell 16 and the blade 3, and the adjusting device 52 is provided at the rear end of the shell 1; the lock lever 51 passes through The adjusting device 52 is controlled to realize the telescopic movement toward the blade telescopic opening 11, and the front end of the lock lever 51 reduces the gap with the blade 3 through the inclined protrusion 161 and clamps and locks the blade 3.
  • the present invention adopts the above-mentioned structure, so that people can hold the cutter in the form of the blade of the blade downwards in use, and keep the thumb down to push the push button during the cutting of the blade to limit the expansion and contraction of the blade, so that people The use of a knife is more comfortable and reasonable.
  • the oblique projection 161 is located between the blade 3 and the locking lever 51.
  • the push button 4 includes a connecting rod 45 and a pushing portion 44 ′ that are integrally connected, and the knife holder 2 is provided with a linkage socket matching with the connecting rod 45.
  • the push button 4 is matched and sleeved on the linkage socket hole 23 through the connecting rod 45 to achieve a linkage connection with the tool holder 2, and the axial direction of the linkage socket hole 23 and the opening of the button slide groove 18 are in the same direction.
  • the pushing portion 44 ′ is exposed from the housing 1 from the button chute 18; a reset elastic member with the same force direction as the axial direction of the linkage sleeve hole 23 is also provided between the pushing button 4 and the tool holder 2, and the positioning block is positioned 451 is locked in one of the positioning tooth grooves 172 under the force of the resetting elastic member; when the push button 4 is pushed downward, the push button 4 moves downward against the resetting force of the resetting elastic member, so that the positioning projection 451 Disengage the positioning tooth groove 172, so that the push button 4 can be pushed to carry the tool holder 2 to carry
  • the blade 3 performs a telescopic movement on the knife holder sliding groove 171; when the blade 3 is retracted into position and the push button 4 is released, the positioning projection 451 is locked in a positioning tooth groove 172 under the reset force of the reset elastic member.
  • the resetting elastic member may be an integrated spring structure; in addition, the number of the linkage socket holes 23 on the tool holder 2 may be two coaxially distributed to ensure the socketing stability of the connecting rod 45; and the spring structure may be provided
  • the matching sleeve is connected to the connecting rod 45 and acts between the linkage sleeve hole 23 and the connecting rod 45, thereby realizing the reset function of the push button 4 relative to the tool holder 2.
  • the blade 3 is provided with a locking hole 32 for matching with the blade holder 2; the inner wall of the left case 16 is further provided with a tool change button 162.
  • One end of the tool change button 162 is matched with the left case 16 and the other end of the tool change button 162 penetrates the left case 16 and protrudes from the outer side of the left case 16.
  • the tool change button 162 is from the left case
  • the rear structure of the protruding end of 16 is sleeve-matched with the locking hole 32.
  • the tool change button 162 can be used to open the locking latching structure in the locking hole 32 belonging to the blade holder 2 to unlock the blade 3 and the blade holder 2 and thus be used to replace the blade 3; You only need to push the button 4 to the maximum amount of expansion of the blade 3, and press the part of the tool change button 162 protruding from the left case 16 with the thumb side, and the tool change button 162 can open the space between the blade 3 and the knife holder 2.
  • the clamping structure realizes the tool changing process.
  • the adjusting device 52 includes a locking screw 521 ′ and a locking knob 523 ′.
  • the locking knob 523 ′ is provided with a coaxial with the locking screw 521. ′ Matching threaded hole 5231 ′;
  • the bottom end of the housing 1 is provided with a knob sleeve hole 19 matching the lock knob 523 ′; the lock knob 523 ′ is matchedly sleeved in the knob sleeve hole 19; the lock
  • the front end of the screw 521 ′ is fixedly connected to the rear end of the lock lever 51, and the rear end of the lock screw 521 ′ is screwed to the threaded hole 5231 ′ of the lock knob 523 ′; the lock lever 51 is connected to the lock knob 523 through the lock knob 523.
  • the threaded connection between ′ and the locking screw 521 ′ is adjusted to realize its telescopic movement toward the blade telescopic opening 11.
  • the present invention utilizes a threaded structure, so that the locking screw 521 ′ under the adjustment of the locking knob 523 ′ drives the locking lever 51 to perform a telescopic movement together, and reduces the gap with the blade 3 and clamps by tilting the projection 161.
  • the blade 3 is locked to restrict the telescopic movement and clearance of the blade 3, so that no force is required to limit the blade 3 in the use of the cutter, making it easier and more convenient for people to use.
  • the locking lever 51 is provided with a guide groove 511 along its telescopic movement direction, and the inner wall of the left housing 16 is provided with a guide projection 163 matching the guide groove 511; the locking lever 51 passes through the guide
  • the groove 511 is matched with the guide protrusion 163 to position and restrict the telescopic direction of the locking lever 51.
  • the adjusting device 52 may be a push button that is linked with the locking lever 51, and the push button is provided on the housing 1.
  • the back side is provided with a matching chute, which drives the locking lever 51 to make a telescopic movement, so that the top end of the locking lever 51 reduces the distance from the blade 3 through the inclined structure and clamps the locking blade 3; in addition, the adjustment device 52 It can also be a device that adjusts the overall distance between the locking lever 51 and the blade 3.
  • the purpose of locking the blade 3 is achieved by adjusting the entire locking lever 51 to be close to and close to each other.
  • the back of the housing 1 is provided with a vertical threaded connection.
  • the end of the knob matches and is fixedly connected to the back of the lock lever 51; moreover, the adjusting device 52 may also implement a linkage mechanism with the lock lever 51 through a gear structure.
  • the locking device 5 is a top block with a knob; wherein, the locking device 5 is screw-connected to the back of the housing 1, and the knob is disposed outside the back of the housing 1. It is arranged on the inner side of the back of the housing 1 and is spaced apart from the blade 3.
  • the top block is lifted by rotating the knob to eliminate the gap with the blade 3, thereby clamping the blade 3 to achieve the effect of locking the blade 3;
  • a metal piece is also provided between the blade 3 and the metal piece. The metal piece is linked with the top piece. During the thread rotation process, the gap between the metal piece and the blade 3 is gradually reduced to a non-gap contact, and the metal piece locks the blade 3 Effect.
  • the locking device 5 is rotatably sleeved on the back of the housing 1 and the thickness around the top block is different.
  • the thickness of the top block is combined with the inclined surface 211 on one side to eliminate the gap with the blade 3. Therefore, clamping the blade 3 achieves the effect of locking the blade 3.
  • the adjusting device 52 includes an adjusting push button, a lock plate with lock racks on both sides, and two stops symmetrically distributed on both sides of the lock plate and matching the lock rack.
  • the two ends of the lock plate are matched and connected with the adjusting push button and the lock lever 51; the one end of the lock plate and the lock lever 51 is also matched with the housing 1 through a compression spring; this product
  • the lock plate overcomes the lock spring block to drive the lock lever 51 to telescopically move, so that the top end of the lock lever 51 reduces the distance from the blade 3 through the inclined structure and clamps the lock blade 3; among them, the lock spring
  • the block can lock the lock plate, so that the lock lever 51 is locked by the state; when the lock spring block is manually opened, the lock lever 51, the lock plate and the adjustment push button are contracted together under the force of a compression spring, and the blade 3 is released. locking.
  • the adjusting device 52 includes a worm knob, a worm connected coaxially and integrally with the worm knob, a gear connected to the worm to be driven and connected to the gear, and a rack connected to the gear to be connected to the gear.
  • the top end of the rack is matched and connected with the bottom end of the lock lever 51; this product rotates the worm in turn by rotating the worm knob, and the gear rotates, that is, the rack telescopic movement, thereby driving the lock lever 51 to perform a telescopic movement, thereby achieving lock
  • the tip of the lever 51 reduces the distance from the blade 3 by the inclined structure and clamps and locks the blade 3.
  • the adjusting device 52 includes a locking button whose end is articulated to match the housing 1, and the two ends are respectively at the ends of the locking lever 51 and the middle phase of the locking button.
  • Match the hinged link as shown in Figure 16, when the lock button is pushed forward, the link is pushed forward to push the lock lever 51 forward and backward, so that the top of the lock lever 51 is reduced by the inclined structure and The distance of the blade 3 clamps and locks the blade 3; as shown in FIG. 17, when the lock lever is pushed backward, the link is pulled backward to pull the lock lever 51 to retract backward, and the blade 3 is unlocked.
  • the adjusting device 52 includes a cam knob, a cam connected to the cam knob to rotate and connect, and a cam link that ends against the cam, and the top end of the cam link It is matched and connected with the end of the lock lever 51, and the top end of the cam link is also matched and connected with the housing 1 through a compression spring; this product drives the cam to rotate through the rotation of the cam knob.
  • the contact point between the cam and the cam link follows the cam knob The distance between the axis lines of the shaft has been changing.
  • the change of the distance has driven the expansion and contraction of the cam link, thereby driving the locking lever 51 to perform a telescopic movement, thereby realizing the top of the locking lever 51 to reduce the distance from the blade 3 through the inclined structure.
  • the clamping blade 3 is clamped and clamped; among them, the cam link is always pressed and pressed against the cam under the force of the compression spring.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)

Abstract

一种带锁紧螺母的美工实用刀具，包括壳体（1）、刀架（2）、刀片（3）、推动按钮（4）及止锁装置（5）；壳体（1）的前端开设有可供刀片（3）伸缩的刀片伸缩口（11），壳体（1）的侧面开设有可供推动按钮（4）活动的滑槽；刀片（3）通过刀架（2）匹配安装于壳体（1）内，刀片（3）通过推动按钮（4）来控制其在刀片伸缩口（11）处进行伸缩活动；止锁装置（5）包括止锁杆（51）及调节装置（52），止锁装置（5）通过调节装置（52）调节止锁杆（51）对刀片（3）进行锁定。

Description

一种带锁紧螺母的美工实用刀具 技术领域
本发明属于美工刀具的技术领域，尤其涉及一种带锁紧螺母的美工实用刀具。
背景技术
美工刀也俗称刻刀或壁纸刀，是一种美术和做手工艺品用的刀，主要用来切割质地较软的东西，多为塑刀柄和刀片两部分组成，为抽拉式结构。也有少数为金属刀柄，刀片多为斜口，用钝可顺片身的划线折断，出现新的刀锋，方便使用。其中，现今普遍的美工刀多采用推动按钮与刀片滑槽上的锁定齿槽之间的卡接来实现对刀片的锁定；但是，该锁定结构并不是特别牢靠，当使用中碰触推动按钮时容易解除刀片锁定；并且该锁定中的复位弹性件失去作用时，刀片的锁定功能也就失效了；另外，因刀片与刀片滑槽之间属于间隙配合，所以在使用中刀片存在一定的间隙晃动，使得普通的美工刀并不适合进行精细裁剪。
发明内容
(一)要解决的技术问题
本发明要解决的技术问题是提供一种结构简单、操作方便、且刀片可锁定的美工实用刀具。
(二)技术方案
为解决上述技术问题，本发明提供一种带锁紧螺母的美工实用刀具，其包括壳体、刀架、刀片、推动按钮及止锁装置；壳体的前端开设有可供刀片伸缩的刀片伸缩口，该壳体的侧面开设有可供推动按钮活动的滑槽；刀片通过刀架匹配安装于壳体内，该刀片通过推动按钮来控制其在刀片伸 缩口处进行伸缩活动；止锁装置包括止锁杆及调节装置，该止锁装置通过调节装置调节止锁杆对刀片进行锁定。
其中，壳体的正侧面开设有贯通其底端及刀片伸缩口且与刀架相匹配的刀架滑动安装槽；刀架的正侧面开设有贯通其两端且与刀片相匹配的刀片滑槽，该刀片滑槽的前段底面设置成向上的倾斜面；
所述刀架从壳体的刀架滑动安装槽的后端插入到位后与壳体匹配固定连接；刀片的后端与推动按钮匹配连接后活动安装于刀架的刀片滑槽内，且推动按钮从刀片滑槽及刀架滑动安装槽两者的顶面槽口露出；止锁杆设置于刀片滑槽的底面及刀片之间，调节装置设置于壳体的后端；止锁杆通过调节装置的控制来实现其在刀片滑槽内进行伸缩运动，且止锁杆的前端通过倾斜面来减小与刀片之间的间隙并夹紧锁定刀片。
其中，刀架的刀片滑槽的两平行侧边设置有对称分布的锁定齿槽；推动按钮包括底板、复位弹片、锁定轴及推动部；底板的前端设置有凸块，刀片的后端设置有与凸块相匹配的孔洞；底板的后端正侧面开设有与复位弹片相匹配的弹片安装槽，该弹片安装槽上还设置有与之垂直相交且与锁定轴相匹配的轴定位槽；推动部的底端开设有与锁定轴相匹配的V型槽；
所述复位弹片匹配安装于底板的弹片安装槽内；锁定轴匹配安装于轴定位槽内并安置于复位弹片之上，且该锁定轴的部分高出底板的侧面；推动部匹配卡接于底板上，且V型槽匹配套接于锁定轴的高出底板的部分；刀片的后端与推动按钮之间通过凸块与孔洞匹配卡接来实现连接；
当推动按钮不受力时，锁定轴的端部高出底板的部分与锁定齿槽匹配卡接；当推动按钮受力推动时，V型槽的向下分力挤压锁定轴克服复位弹片的弹力使其向下凹陷变形，同时锁定轴被挤入轴定位槽内，使得锁定轴与锁定齿槽之间的卡接分离。
其中，调节装置包括止锁螺杆、止锁支架及止锁旋钮；止锁支架为U形结构，该止锁支架的U形开口端与止锁杆的后端相匹配铰接；止锁旋钮 上设置有一个与之同轴的且与止锁螺杆相匹配的螺纹孔；止锁支架的U形封闭端侧面开设有与止锁旋钮相匹配的旋钮卡接槽，该止锁支架的U形开口底部还开设有贯通旋钮卡接槽且与止锁螺杆相匹配的螺杆套接孔；止锁旋钮匹配卡接于止锁支架的旋钮卡接槽内，该止锁旋钮在旋钮卡接槽内可以以自身的轴心线为轴心自由旋转，且螺纹孔与螺杆套接孔两者同轴分布；止锁螺杆匹配固定于壳体的后端，且止锁螺杆的螺纹段朝向刀片伸缩口的相反方向；刀架滑动安装槽的后端两侧设置有与止锁支架相匹配的支架活动槽；止锁杆通过止锁旋钮与止锁螺杆之间的螺纹连接调节来实现其在刀片滑槽内进行伸缩运动。
其中，壳体的后端两侧设置有止锁定位槽，止锁支架的两侧设置有与止锁定位槽相匹配的止锁定位块；当所述止锁杆的前端通过倾斜面来减小与刀片之间的间隙并夹紧锁定刀片时，止锁定位槽与止锁定位块之间为间隙配合。
其中，壳体包括外壳体及内壳体；刀片伸缩口及刀架滑动安装槽都设置于外壳体上，该刀架滑动安装槽的槽底开设有与内壳体相匹配的壳体套接孔；内壳体上设置有与刀架相匹配的刀架滑槽；
当内壳体匹配套接于壳体套接孔内后，通过刀架同时贯穿刀架滑动安装槽及刀架滑槽来实现内壳体在外壳体上的固定。
其中，壳体包括左右拼接固定的左壳体及右壳体；右壳体的内壁上设置有贯通刀片伸缩口且与刀架相匹配的刀架滑动槽；壳体的顶面开设有贯通刀架滑动槽且与推动按钮相匹配的按钮滑槽；左壳体的内壁靠近刀片伸缩口处设置有倾斜凸块；
所述刀片固定卡接于刀架上，该刀架携带刀片匹配安装于刀架滑动槽上；推动按钮匹配联动连接于刀架上并从按钮滑槽处露出壳体外；所述止锁杆设置于左壳体的内壁及刀片之间，调节装置设置于壳体的后端；止锁杆通过调节装置的控制来实现其朝向刀片伸缩口的方向的伸缩运动，且止 锁杆的前端通过倾斜凸块来减小与刀片之间的间隙并夹紧锁定刀片。
其中，推动按钮包括一体连接的连接杆及推动部，所述刀架上设置有与连接杆相匹配套接的联动套接孔；右壳体的刀架滑动槽的顶边开设有多个均匀间隔分布的定位齿槽，连接杆的侧边设置有与定位齿槽相匹配的定位凸块；
所述推动按钮通过连接杆匹配套接于联动套接孔上来实现与刀架之间的联动连接，且联动套接孔的轴向与按钮滑槽的开口处于同一个方向；推动部从按钮滑槽处露出壳体外；推动按钮与刀架之间还设置有作用力方向与联动套接孔的轴向相同的复位弹性件，定位凸块在复位弹性件的作用力下卡接于其中一个定位齿槽内；
当推动按钮向下挤压时，推动按钮克服复位弹性件的复位作用力向下运动，使得定位凸块脱离定位齿槽，从而可以推动推动按钮带动刀架携带刀片在刀架滑动槽上作伸缩运动；当刀片伸缩到位并放开推动按钮时，定位凸块在复位弹性件的复位作用力下卡接于一个定位齿槽内。
其中，刀片上开设有与刀架相匹配卡接的锁定孔；左壳体的内侧壁上还设置换刀按钮，换刀按钮的一端与左壳体相匹配卡接，该换刀按钮的另一端贯穿左壳体后从左壳体的外侧面伸出，换刀按钮从左壳体伸出的一端的背面结构与锁定孔相套接匹配。
其中，调节装置包括止锁螺杆及止锁旋钮，止锁旋钮上设置有一个与之同轴的且与止锁螺杆相匹配的螺纹孔；壳体的底端开设有与止锁旋钮相匹配的旋钮套接孔；止锁旋钮匹配套接于旋钮套接孔内；止锁螺杆的前端与止锁杆的后端匹配固定连接，该止锁螺杆的后端与止锁旋钮的螺纹孔匹配螺纹连接；止锁杆通过止锁旋钮与止锁螺杆之间的螺纹连接调节来实现其朝向刀片伸缩口的方向的伸缩运动。
(三)有益效果
与现有技术相比，本发明采用止锁杆的结构夹紧刀片，从而达到刀片锁定的功能，使得人们在使用不会出现刀片伸缩滑动的情况，省去人们手动施压限制刀片的操作，有效避免刀片滑动导致切割错误或误伤人们的情况出现；而通过螺纹结构的旋转螺母来实现锁定调节，既结构简单，又操作方便。
附图说明
图1是本发明一种带锁紧螺母的美工实用刀具的结构示意图。
图2是本发明一种带锁紧螺母的美工实用刀具的结构示意剖视图。
图3是本发明一种带锁紧螺母的美工实用刀具的结构示意爆炸图。
图4是本发明一种带锁紧螺母的美工实用刀具的推动按钮的结构示意图。
图5是本发明一种带锁紧螺母的美工实用刀具的壳体的结构示意图。
图6是本发明另一种带锁紧螺母的美工实用刀具的结构示意图。
图7是本发明另一种带锁紧螺母的美工实用刀具去左壳体的结构示意图。
图8是本发明另一种带锁紧螺母的美工实用刀具去右壳体的结构示意图。
图9是本发明止锁装置为带顶块的旋钮的美工实用刀具的结构示意图。
图10是本发明调节装置为推钮结构的美工实用刀具的结构示意图。图11是本发明推钮结构的调节装置的结构示意图。
图12是本发明调节装置为蜗杆传动结构的美工实用刀具的结构示意图。
图13是本发明蜗杆传动结构的调节装置的结构示意图。
图14是本发明调节装置为止锁按柄结构的美工实用刀具的结构示意图。
图15是本发明止锁按柄结构的调节装置的结构示意图。
图16是本发明刀片锁定状态时调节装置为止锁按柄结构的结构示意图。
图17是本发明刀片解锁状态时调节装置为止锁按柄结构的结构示意图。
图18是本发明调节装置为凸轮传动结构的美工实用刀具的结构示意图。
图19是本发明凸轮传动结构的调节装置的结构示意图。
图20是本发明凸轮传动结构的调节装置的结构示意侧视图。
附图标记说明：1、壳体；2、刀架；3、刀片；4、推动按钮；5、止锁装置；11、刀片伸缩口；12、刀架滑动安装槽；13、止锁定位槽；14、外壳体；15、内壳体；16、左壳体；17、右壳体；18、按钮滑槽；19、旋钮套接孔；21、刀片滑槽；22、锁定齿槽；23、联动套接孔；31、孔洞；32、锁定孔；41、底板；42、复位弹片；43、锁定轴；44、推动部；44′、推动部；45、连接杆；51、止锁杆；52、调节装置；121、支架活动槽；122、壳体套接孔；151、刀架滑槽；161、倾斜凸块；162、换刀按钮；163、导向凸块；171、刀架滑动槽；172、定位齿槽；211、倾斜面；411、凸块；412、弹片安装槽；413、轴定位槽；441、V型槽；451、定位凸块；511、导向槽；521、止锁螺杆；521′、止锁螺杆；522、止锁支架；523、止锁旋钮；523′、止锁旋钮；5221、旋钮卡接槽；5222、螺杆套接孔；5223、止锁定位块；5231、螺纹孔；5231′、螺纹孔。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不能用来限制本发明的范围。
图1是本发明一种带锁紧螺母的美工实用刀具的结构示意图；图2是本发明一种带锁紧螺母的美工实用刀具的结构示意剖视图；图3是本发明一种带锁紧螺母的美工实用刀具的结构示意爆炸图；图4是本发明一种带锁紧螺母的美工实用刀具的推动按钮的结构示意图；图5是本发明一种带锁紧螺母的美工实用刀具的壳体的结构示意图；图6是本发明另一种带锁紧螺母的美工实用刀具的结构示意图；图7是本发明另一种带锁紧螺母的美工实用刀具去左壳体的结构示意图；图8是本发明另一种带锁紧螺母的美工实用刀具去右壳体的结构示意图。
本发明带锁紧螺母的美工实用刀具的结构如图1、图2、图6、图7及图8所示，该带锁紧螺母的美工实用刀具包括壳体1、刀架2、刀片3、推动按钮4及止锁装置5；壳体1的前端开设有可供刀片3伸缩的刀片伸缩口11，该壳体1的侧面开设有可供推动按钮4活动的滑槽；刀片3通过刀架2匹配安装于壳体1内，该刀片3通过推动按钮4来控制其在刀片伸缩口11处进行伸缩活动；止锁装置5包括止锁杆51及调节装置52，该止锁装置5通过调节装置52调节止锁杆51对刀片3进行锁定。本发明采用上述结构，利用止锁杆锁死刀片，使得本产品在裁剪切割使用中，其刀片不会产生偏移或晃动，有效提高产品的使用稳定性，避免刀片自动伸缩或晃动造成的裁剪错误或误伤，适用于高精度的工艺裁剪，提高安全性能。
如图1、图2及图3所示，本实施例中，壳体1的正侧面开设有贯通其底端及刀片伸缩口11且与刀架2相匹配的刀架滑动安装槽12；刀架2的正侧面开设有贯通其两端且与刀片3相匹配的刀片滑槽21，该刀片滑槽21的前段底面设置成向上的倾斜面211；所述刀架2从壳体1的刀架滑动安装槽12的后端插入到位后与壳体1匹配固定连接；刀片3的后端与推动按钮4匹配连接后活动安装于刀架2的刀片滑槽21内，且推动按钮4从刀片滑槽21及刀架滑动安装槽12两者的顶面槽口露出；止锁杆51设置于刀 片滑槽21的底面及刀片3之间，调节装置52设置于壳体1的后端；止锁杆51通过调节装置52的控制来实现其在刀片滑槽21内进行伸缩运动，且止锁杆51的前端通过倾斜面211来减小与刀片3之间的间隙并夹紧锁定刀片3。本发明通过缩止锁杆与刀片之间的间隙来达到夹紧并锁定刀片的目的，有效限制了刀片的伸缩运动及间隙晃动，保证了刀片锁定的牢固度。
如图3及图4所示，本实施例中，刀架2的刀片滑槽21的两平行侧边设置有对称分布的锁定齿槽22；推动按钮4包括底板41、复位弹片42、锁定轴43及推动部44；底板41的前端设置有凸块411，刀片3的后端设置有与凸块411相匹配的孔洞31；底板41的后端正侧面开设有与复位弹片42相匹配的弹片安装槽412，该弹片安装槽412上还设置有与之垂直相交且与锁定轴43相匹配的轴定位槽413；推动部44的底端开设有与锁定轴43相匹配的V型槽441；所述复位弹片42匹配安装于底板41的弹片安装槽412内；锁定轴43匹配安装于轴定位槽413内并安置于复位弹片42之上，且该锁定轴43的部分高出底板41的侧面；推动部44匹配卡接于底板41上，且V型槽441匹配套接于锁定轴43的高出底板41的部分；刀片3的后端与推动按钮4之间通过凸块411与孔洞31匹配卡接来实现连接；当推动按钮4不受力时，锁定轴43的端部高出底板41的部分与锁定齿槽22匹配卡接，从而限制刀片3的伸缩运动；当推动按钮4受力推动时，V型槽441的向下分力挤压锁定轴43克服复位弹片42的弹力使其向下凹陷变形，同时锁定轴43被挤入轴定位槽413内，使得锁定轴43与锁定齿槽22之间的卡接分离，从而可以推动推动按钮4来实现刀片3的伸缩。本发明利用推动按钮中的锁定轴与锁定齿槽之间的卡接与脱离来实现对刀片的伸缩锁定。其中，复位弹片42也可以采用其他的弹性装置替代，如弹簧、具有弹性的橡胶材料等。
如图1、图2及图3所示，本实施例中，调节装置52包括止锁螺杆521、止锁支架522及止锁旋钮523；止锁支架522为U形结构，该止锁支架522的U形开口端与止锁杆51的后端相匹配铰接；其中，止锁支架522可以相 对于止锁杆51以两者铰接处为轴心进行旋转活动，从而避免了止锁支架522阻碍刀片3的更换的情况发生；止锁旋钮523上设置有一个与之同轴的且与止锁螺杆521相匹配的螺纹孔5231；止锁支架522的U形封闭端侧面开设有与止锁旋钮523相匹配的旋钮卡接槽5221，该止锁支架522的U形开口底部还开设有贯通旋钮卡接槽5221且与止锁螺杆521相匹配的螺杆套接孔5222；止锁旋钮523匹配卡接于止锁支架522的旋钮卡接槽5221内，该止锁旋钮523在旋钮卡接槽5221内可以以自身的轴心线为轴心自由旋转，且螺纹孔5231与螺杆套接孔5222两者同轴分布；止锁螺杆521匹配固定于壳体1的后端，且止锁螺杆521的螺纹段朝向刀片伸缩口11的相反方向；刀架滑动安装槽12的后端两侧设置有与止锁支架522相匹配的支架活动槽121；止锁杆51通过止锁旋钮523与止锁螺杆521之间的螺纹连接调节来实现其在刀片滑槽21内进行伸缩运动。本发明的调节装置利用螺纹连接结构，使得止锁螺杆产生的位移带动止锁杆沿着刀片伸缩的方向作伸缩运动，既结构简单，操作方便，又经济实用。其中，止锁杆51的后端与止锁支架522的U形开口端之间的铰接结构设置于止锁杆51的下方，并设置于止锁螺杆521的正前方，既使得刀片3的更换不会受到该铰接结构的妨碍，又可以利用止锁螺杆521限制止锁杆51的伸缩位移，避免止锁支架522携带止锁杆51一起从壳体1中抽出；另外，止锁螺杆521可以采用螺钉固定于壳体1上。
如图3所示，本实施例中，壳体1的后端两侧设置有止锁定位槽13，止锁支架522的两侧设置有与止锁定位槽13相匹配的止锁定位块5223；当所述止锁杆51的前端通过倾斜面211来减小与刀片3之间的间隙并夹紧锁定刀片3时，止锁定位槽13与止锁定位块5223之间为间隙配合，为长期使用后的结构松弛预留锁紧间距。本发明设置的止锁定位槽及与之匹配的止锁定位块，可以起到引导导向的作用；其中，止锁定位槽13可以为V形开口槽。
如图5所示，本实施例中，壳体1包括外壳体14及内壳体15；刀片 伸缩口11及刀架滑动安装槽12都设置于外壳体14上，该刀架滑动安装槽12的槽底开设有与内壳体15相匹配的壳体套接孔122；内壳体15上设置有与刀架2相匹配的刀架滑槽151；当内壳体15匹配套接于壳体套接孔122内后，通过刀架2同时贯穿刀架滑动安装槽12及刀架滑槽151来实现内壳体15在外壳体14上的固定。本发明把壳体设置成外壳体与内壳体两个部分，使得两个壳体部分可以采用两种材料制成；如外壳体采用金属材料制成，而内壳体可以采用塑料材料制作，该结构既可以保证壳体的牢固度，避免磕碰或掉落导致损坏，又相比于整个壳体采用金属材料制成，降低了自身重量，使得力气小的人都可以轻松使用。
如图6、图7及图8所示，本实施例中，壳体1包括左右拼接固定的左壳体16及右壳体17；右壳体17的内壁上设置有贯通刀片伸缩口11且与刀架2相匹配的刀架滑动槽171；壳体1的顶面开设有贯通刀架滑动槽171且与推动按钮4相匹配的按钮滑槽18；左壳体16的内壁靠近刀片伸缩口11处设置有倾斜凸块161；所述刀片3固定卡接于刀架2上，该刀架2携带刀片3匹配安装于刀架滑动槽171上；推动按钮4匹配联动连接于刀架2上并从按钮滑槽18处露出壳体1外；所述止锁杆51设置于左壳体16的内壁及刀片3之间，调节装置52设置于壳体1的后端；止锁杆51通过调节装置52的控制来实现其朝向刀片伸缩口11的方向的伸缩运动，且止锁杆51的前端通过倾斜凸块161来减小与刀片3之间的间隙并夹紧锁定刀片3。本发明采用上述结构，使得人们在使用中可以采用刀片的刀刃向下的形式持握本刀具，并在刀刃向下切割中让大拇指向下按住推动按钮来限制刀片的伸缩，从而使得人们持刀使用更加舒适合理。其中，切斜凸块161位于刀片3及止锁杆51之间。
如图7及图8所示，本实施例中，推动按钮4包括一体连接的连接杆45及推动部44′，所述刀架2上设置有与连接杆45相匹配套接的联动套接孔23；右壳体17的刀架滑动槽171的顶边开设有多个均匀间隔分布的定位齿槽172，连接杆45的侧边设置有与定位齿槽172相匹配的定位凸块 451；所述推动按钮4通过连接杆45匹配套接于联动套接孔23上来实现与刀架2之间的联动连接，且联动套接孔23的轴向与按钮滑槽18的开口处于同一个方向；推动部44′从按钮滑槽18处露出壳体1外；推动按钮4与刀架2之间还设置有作用力方向与联动套接孔23的轴向相同的复位弹性件，定位凸块451在复位弹性件的作用力下卡接于其中一个定位齿槽172内；当推动按钮4向下挤压时，推动按钮4克服复位弹性件的复位作用力向下运动，使得定位凸块451脱离定位齿槽172，从而可以推动推动按钮4带动刀架2携带刀片3在刀架滑动槽171上作伸缩运动；当刀片3伸缩到位并放开推动按钮4时，定位凸块451在复位弹性件的复位作用力下卡接于一个定位齿槽172内。其中，复位弹性件可以为一体弹簧结构；另外，刀架2上的联动套接孔23设置的数量可以为同轴分布的两个，保证连接杆45的套接稳定性；而弹簧结构可以设置匹配套接在连接杆45上，并作用于联动套接孔23与连接杆45之间，从而实现推动按钮4相对于刀架2的复位功能。
如图7及图8所示，本实施例中，刀片3上开设有与刀架2相匹配卡接的锁定孔32；所述左壳体16的内侧壁上还设置换刀按钮162，所述换刀按钮162的一端与左壳体16相匹配卡接，该换刀按钮162的另一端贯穿左壳体16后从左壳体16的外侧面伸出，换刀按钮162从左壳体16伸出的一端的背面结构与锁定孔32相套接匹配。本发明可以利用换刀按钮162顶开锁定孔32内属于刀架2上的锁定卡接结构来实现对刀片3与刀架2之间的卡接解锁，从而用于更换刀片3；使用时，只需要推动按钮4推动到刀片3伸缩最大量，并用大拇指侧面按下换刀按钮162从左壳体16伸出的部分，换刀按钮162即可顶开刀片3与刀架2之间的卡接结构实现换刀工序。
如图7及图8所示，本实施例中，调节装置52包括止锁螺杆521′及止锁旋钮523′，止锁旋钮523′上设置有一个与之同轴的且与止锁螺杆521′相匹配的螺纹孔5231′；壳体1的底端开设有与止锁旋钮523′相匹配的旋钮套接孔19；止锁旋钮523′匹配套接于旋钮套接孔19内；止锁螺 杆521′的前端与止锁杆51的后端匹配固定连接，该止锁螺杆521′的后端与止锁旋钮523′的螺纹孔5231′匹配螺纹连接；止锁杆51通过止锁旋钮523′与止锁螺杆521′之间的螺纹连接调节来实现其朝向刀片伸缩口11的方向的伸缩运动。本发明利用螺纹结构，使得止锁螺杆521′在止锁旋钮523′的调节下带动止锁杆51一起进行伸缩运动，并通过倾斜凸块161来减小与刀片3之间的间隙并夹紧锁定刀片3，限制刀片3的伸缩运动及间隙晃动，从而在本刀具使用中无需再使力来限制刀片3，使得人们在使用中更加轻松方便。其中，止锁杆51上设置有沿着其伸缩运动方向的导向槽511，所述左壳体16的内壁上设置有与该导向槽511相匹配的导向凸块163；止锁杆51通过导向槽511与导向凸块163相匹配来定位限制止锁杆51的伸缩方向。
本产品采用止锁杆51缩减与刀片3的间距来达到夹紧并锁定刀片3的功能；其中，调节装置52可以是与止锁杆51联动的推动按钮，该推动按钮设置于壳体1的背部并设有与之相匹配的滑槽，带动止锁杆51做伸缩运动，从而实现止锁杆51的顶端通过倾斜结构缩减与刀片3的距离并夹紧锁定刀片3；另外，调节装置52也可以是调节止锁杆51与刀片3之间整体间距的装置，通过调节整个止锁杆51靠近并贴紧来实现锁定刀片3的目的，如壳体1的背面设置一个与之垂直螺纹连接的旋钮，该旋钮的末端与止锁杆51的背面相匹配固定连接；还有，调节装置52也可以通过齿轮结构来实现与止锁杆51之间的联动机构。
如图9所示，本实施例中，止锁装置5为一个带旋钮的顶块；其中，止锁装置5与壳体1的背面螺纹连接，旋钮设置于壳体1的背面外侧，顶块设置于壳体1的背面内侧并与刀片3之间间隔分布，通过旋转旋钮升降顶块达到消除与刀片3之间的间隙，从而夹紧刀片3达到锁定刀片3的功效；并且，在顶块与刀片3之间还设置有一个金属片，该金属片随顶块联动，在螺纹旋转过程中，金属片与刀片3之间的间隙逐渐减小至无间隙接触，达到金属片锁紧刀片3的功效。另外，止锁装置5与壳体1的背面旋 转活动套接，顶块周围的厚度不同，通过旋转旋钮让顶块的厚度大的单边结合倾斜面211来实现消除与刀片3之间的间隙，从而夹紧刀片3达到锁定刀片3的功效。
如图10及图11所示，本实施例中，调节装置52包括调节推钮、两边带锁定齿条的锁板、及两个对称分布于锁板两侧且与锁定齿条相匹配的止锁弹块；锁板的两端与调节推钮及止锁杆51相匹配连接；锁板与止锁杆51相匹配连接的一端还通过一根压簧与壳体1相匹配连接；本产品通过推动调节推钮使得锁板克服止锁弹块带动止锁杆51伸缩运动，从而实现止锁杆51的顶端通过倾斜结构缩减与刀片3的距离并夹紧锁定刀片3；其中，止锁弹块可以锁定锁板，使得止锁杆51被状态锁定；当手控打开止锁弹块后，在压簧作用力下带动止锁杆51、锁板及调节推钮一起收缩，解除刀片3的锁定。
如图12及图13所示，本实施例中，调节装置52包括蜗杆旋钮、与蜗杆旋钮同轴一体连接的蜗杆、与蜗杆相匹配传动连接的齿轮、以及与齿轮相匹配传动连接的齿条，该齿条的顶端与止锁杆51的底端匹配连接；本产品通过旋转蜗杆旋钮依次带动蜗杆旋转、齿轮旋转即齿条伸缩运动，从而带动止锁杆51做伸缩运动，进而实现止锁杆51的顶端通过倾斜结构缩减与刀片3的距离并夹紧锁定刀片3。
如图14及图15所示，本实施例中，调节装置52包括末端与壳体1相匹配铰接的止锁按柄、两端分别与止锁杆51的末端及止锁按柄的中间相匹配铰接的连杆；如图16所示，当止锁按柄向前按下时，带动连杆向前推动止锁杆51向前伸缩，从而实现止锁杆51的顶端通过倾斜结构缩减与刀片3的距离并夹紧锁定刀片3；如图17所示，当止锁按柄向后按下时，带动连杆向后拉动止锁杆51也向后伸缩，解除刀片3的锁定。
如图18、图19及图20所示，本实施例中，调节装置52包括凸轮旋钮、与凸轮旋钮匹配旋转传动连接的凸轮、以及末端顶住凸轮的凸轮连杆，该凸轮连杆的顶端与止锁杆51的末端匹配连接，凸轮连杆的顶端还通过一 个压簧与壳体1匹配连接；本产品通过凸轮旋钮的旋转带动凸轮旋转，过程中凸轮与凸轮连杆接触点跟凸轮旋钮的轴心线之间的距离一直在变动，该距离变动带动了凸轮连杆的伸缩，从而带动止锁杆51做伸缩运动，进而实现止锁杆51的顶端通过倾斜结构缩减与刀片3的距离并夹紧锁定刀片3；其中，压簧的作用力下凸轮连杆一直被挤压与凸轮相匹配顶住。
以上仅为本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种带锁紧螺母的美工实用刀具，其特征在于：所述带锁紧螺母的美工实用刀具包括壳体(1)、刀架(2)、刀片(3)、推动按钮(4)及止锁装置(5)；所述壳体(1)的前端开设有可供刀片(3)伸缩的刀片伸缩口(11)，该壳体(1)的侧面开设有可供推动按钮(4)活动的滑槽；所述刀片(3)通过刀架(2)匹配安装于壳体(1)内，该刀片(3)通过推动按钮(4)来控制其在刀片伸缩口(11)处进行伸缩活动；所述止锁装置(5)包括止锁杆(51)及调节装置(52)，该止锁装置(5)通过调节装置(52)调节止锁杆(51)对刀片(3)进行锁定。
  2. 根据权利要求1所述的带锁紧螺母的美工实用刀具，其特征在于：所述壳体(1)的正侧面开设有贯通其底端及刀片伸缩口(11)且与刀架(2)相匹配的刀架滑动安装槽(12)；刀架(2)的正侧面开设有贯通其两端且与刀片(3)相匹配的刀片滑槽(21)，所述刀片滑槽(21)的前段底面设置成向上的倾斜面(211)；
    所述刀架(2)从壳体(1)的刀架滑动安装槽(12)的后端插入到位后与壳体(1)匹配固定连接；所述刀片(3)的后端与推动按钮(4)匹配连接后活动安装于刀架(2)的刀片滑槽(21)内，且推动按钮(4)从刀片滑槽(21)及刀架滑动安装槽(12)两者的顶面槽口露出；所述止锁杆(51)设置于刀片滑槽(21)的底面及刀片(3)之间，所述调节装置(52)设置于壳体(1)的后端；止锁杆(51)通过调节装置(52)的控制来实现其在刀片滑槽(21)内进行伸缩运动，且止锁杆(51)的前端通过倾斜面(211)来减小与刀片(3)之间的间隙并夹紧锁定刀片(3)。
  3. 根据权利要求2所述的带锁紧螺母的美工实用刀具，其特征在于：所述刀架(2)的刀片滑槽(21)的两平行侧边设置有对称分布的锁定齿槽(22)；所述推动按钮(4)包括底板(41)、复位弹片(42)、锁定轴(43)及推动部(44)；所述底板(41)的前端设置有凸块(411)，所述刀片(3) 的后端设置有与凸块(411)相匹配的孔洞(31)；底板(41)的后端正侧面开设有与复位弹片(42)相匹配的弹片安装槽(412)，所述弹片安装槽(412)上还设置有与之垂直相交且与锁定轴(43)相匹配的轴定位槽(413)；所述推动部(44)的底端开设有与锁定轴(43)相匹配的V型槽(441)；
    所述复位弹片(42)匹配安装于底板(41)的弹片安装槽(412)内；所述锁定轴(43)匹配安装于轴定位槽(413)内并安置于复位弹片(42)之上，且该锁定轴(43)的部分高出底板(41)的侧面；所述推动部(44)匹配卡接于底板(41)上，且V型槽(441)匹配套接于锁定轴(43)的高出底板(41)的部分；所述刀片(3)的后端与推动按钮(4)之间通过凸块(411)与孔洞(31)匹配卡接来实现连接；
    当推动按钮(4)不受力时，锁定轴(43)的端部高出底板(41)的部分与锁定齿槽(22)匹配卡接；当推动按钮(4)受力推动时，V型槽(441)的向下分力挤压锁定轴(43)克服复位弹片(42)的弹力使其向下凹陷变形，同时锁定轴(43)被挤入轴定位槽(413)内，使得锁定轴(43)与锁定齿槽(22)之间的卡接分离。
  4. 根据权利要求2或3所述的带锁紧螺母的美工实用刀具，其特征在于：所述调节装置(52)包括止锁螺杆(521)、止锁支架(522)及止锁旋钮(523)；所述止锁支架(522)为U形结构，该止锁支架(522)的U形开口端与止锁杆(51)的后端相匹配铰接；所述止锁旋钮(523)上设置有一个与之同轴的且与止锁螺杆(521)相匹配的螺纹孔(5231)；止锁支架(522)的U形封闭端侧面开设有与止锁旋钮(523)相匹配的旋钮卡接槽(5221)，该止锁支架(522)的U形开口底部还开设有贯通旋钮卡接槽(5221)且与止锁螺杆(521)相匹配的螺杆套接孔(5222)；止锁旋钮(523)匹配卡接于止锁支架(522)的旋钮卡接槽(5221)内，该止锁旋钮(523)在旋钮卡接槽(5221)内可以以自身的轴心线为轴心自由旋转，且螺纹孔(5231)与螺杆套接孔(5222)两者同轴分布；止锁螺杆(521)匹配固定于壳体(1)的后端，且止锁螺杆(521)的螺纹段朝向刀片伸缩口(11) 的相反方向；所述刀架滑动安装槽(12)的后端两侧设置有与止锁支架(522)相匹配的支架活动槽(121)；止锁杆(51)通过止锁旋钮(523)与止锁螺杆(521)之间的螺纹连接调节来实现其在刀片滑槽(21)内进行伸缩运动。
  5. 根据权利要求4所述的带锁紧螺母的美工实用刀具，其特征在于：所述壳体(1)的后端两侧设置有止锁定位槽(13)，所述止锁支架(522)的两侧设置有与止锁定位槽(13)相匹配的止锁定位块(5223)；当所述止锁杆(51)的前端通过倾斜面(211)来减小与刀片(3)之间的间隙并夹紧锁定刀片(3)时，止锁定位槽(13)与止锁定位块(5223)之间为间隙配合。
  6. 根据权利要求2或3所述的带锁紧螺母的美工实用刀具，其特征在于：所述壳体(1)包括外壳体(14)及内壳体(15)；所述刀片伸缩口(11)及刀架滑动安装槽(12)都设置于外壳体(14)上，该刀架滑动安装槽(12)的槽底开设有与内壳体(15)相匹配的壳体套接孔(122)；内壳体(15)上设置有与刀架(2)相匹配的刀架滑槽(151)；
    当内壳体(15)匹配套接于壳体套接孔(122)内后，通过刀架(2)同时贯穿刀架滑动安装槽(12)及刀架滑槽(151)来实现内壳体(15)在外壳体(14)上的固定。
  7. 根据权利要求1所述的带锁紧螺母的美工实用刀具，其特征在于：所述壳体(1)包括左右拼接固定的左壳体(16)及右壳体(17)；所述右壳体(17)的内壁上设置有贯通刀片伸缩口(11)且与刀架(2)相匹配的刀架滑动槽(171)；壳体(1)的顶面开设有贯通刀架滑动槽(171)且与推动按钮(4)相匹配的按钮滑槽(18)；所述左壳体(16)的内壁靠近刀片伸缩口(11)处设置有倾斜凸块(161)；
    所述刀片(3)固定卡接于刀架(2)上，该刀架(2)携带刀片(3)匹配安装于刀架滑动槽(171)上；所述推动按钮(4)匹配联动连接于刀架(2)上并从按钮滑槽(18)处露出壳体(1)外；所述止锁杆(51)设 置于左壳体(16)的内壁及刀片(3)之间，所述调节装置(52)设置于壳体(1)的后端；止锁杆(51)通过调节装置(52)的控制来实现其朝向刀片伸缩口(11)的方向的伸缩运动，且止锁杆(51)的前端通过倾斜凸块(161)来减小与刀片(3)之间的间隙并夹紧锁定刀片(3)。
  8. 根据权利要求7所述的带锁紧螺母的美工实用刀具，其特征在于：所述推动按钮(4)包括一体连接的连接杆(45)及推动部(44′)，所述刀架(2)上设置有与连接杆(45)相匹配套接的联动套接孔(23)；所述右壳体(17)的刀架滑动槽(171)的顶边开设有多个均匀间隔分布的定位齿槽(172)，连接杆(45)的侧边设置有与定位齿槽(172)相匹配的定位凸块(451)；
    所述推动按钮(4)通过连接杆(45)匹配套接于联动套接孔(23)上来实现与刀架(2)之间的联动连接，且联动套接孔(23)的轴向与按钮滑槽(18)的开口处于同一个方向；所述推动部(44′)从按钮滑槽(18)处露出壳体(1)外；所述推动按钮(4)与刀架(2)之间还设置有作用力方向与联动套接孔(23)的轴向相同的复位弹性件，所述定位凸块(451)在复位弹性件的作用力下卡接于其中一个定位齿槽(172)内；
    当推动按钮(4)向下挤压时，推动按钮(4)克服复位弹性件的复位作用力向下运动，使得定位凸块(451)脱离定位齿槽(172)，从而可以推动推动按钮(4)带动刀架(2)携带刀片(3)在刀架滑动槽(171)上作伸缩运动；当刀片(3)伸缩到位并放开推动按钮(4)时，定位凸块(451)在复位弹性件的复位作用力下卡接于一个定位齿槽(172)内。
  9. 根据权利要求8所述的带锁紧螺母的美工实用刀具，其特征在于：所述刀片(3)上开设有与刀架(2)相匹配卡接的锁定孔(32)；所述左壳体(16)的内侧壁上还设置换刀按钮(162)，所述换刀按钮(162)的一端与左壳体(16)相匹配卡接，该换刀按钮(162)的另一端贯穿左壳体(16)后从左壳体(16)的外侧面伸出，换刀按钮(162)从左壳体(16)伸出的一端的背面结构与锁定孔(32)相套接匹配。
  10. 根据权利要求7至9任一项所述的带锁紧螺母的美工实用刀具，其特征在于：所述调节装置(52)包括止锁螺杆(521′)及止锁旋钮(523′)，所述止锁旋钮(523′)上设置有一个与之同轴的且与止锁螺杆(521′)相匹配的螺纹孔(5231′)；所述壳体(1)的底端开设有与止锁旋钮(523′)相匹配的旋钮套接孔(19)；止锁旋钮(523′)匹配套接于旋钮套接孔(19)内；所述止锁螺杆(521′)的前端与止锁杆(51)的后端匹配固定连接，该止锁螺杆(521′)的后端与止锁旋钮(523′)的螺纹孔(5231′)匹配螺纹连接；止锁杆(51)通过止锁旋钮(523′)与止锁螺杆(521′)之间的螺纹连接调节来实现其朝向刀片伸缩口(11)的方向的伸缩运动。
PCT/CN2018/105711 2018-09-06 2018-09-14 一种带锁紧螺母的美工实用刀具 WO2020047891A1 (zh)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US16/646,729 US11267144B2 (en) 2018-09-06 2018-09-14 Utility knife with a locknut
EP18932627.5A EP3674042B1 (en) 2018-09-06 2018-09-14 Utility knife
RU2020113339A RU2779499C2 (ru) 2018-09-06 2018-09-14 Универсальный нож со стопорной гайкой
ES18932627T ES2959433T3 (es) 2018-09-06 2018-09-14 Cúter multiusos
PL18932627.5T PL3674042T3 (pl) 2018-09-06 2018-09-14 Nóż uniwersalny
BR112020006538-2A BR112020006538A2 (pt) 2018-09-06 2018-09-14 Faca utilitária com uma contraporca
MX2020003734A MX2020003734A (es) 2018-09-06 2018-09-14 Trincheta con contratuerca.
KR1020207009807A KR102418863B1 (ko) 2018-09-06 2018-09-14 실용적 아트 나이프
UAA202002549A UA127353C2 (uk) 2018-09-06 2018-09-14 Універсальний ніж

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201821455434.0 2018-09-06
CN201821455434.0U CN208867220U (zh) 2018-09-06 2018-09-06 一种带锁紧螺母的美工实用刀具
CN201811037339.3A CN109129582B (zh) 2018-09-06 2018-09-06 一种带锁紧螺母的美工实用刀具
CN201811037339.3 2018-09-06

Publications (1)

Publication Number Publication Date
WO2020047891A1 true WO2020047891A1 (zh) 2020-03-12

Family

ID=69722147

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/105711 WO2020047891A1 (zh) 2018-09-06 2018-09-14 一种带锁紧螺母的美工实用刀具

Country Status (9)

Country Link
US (1) US11267144B2 (zh)
EP (1) EP3674042B1 (zh)
KR (1) KR102418863B1 (zh)
BR (1) BR112020006538A2 (zh)
ES (1) ES2959433T3 (zh)
MX (1) MX2020003734A (zh)
PL (1) PL3674042T3 (zh)
UA (1) UA127353C2 (zh)
WO (1) WO2020047891A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9597809B2 (en) 2013-03-04 2017-03-21 Gb Ii Corporation Easily disassembled folding knife
AU2015226836B2 (en) * 2014-03-06 2019-04-18 Breville Pty Limited Dosing tool
US10882197B1 (en) 2018-04-12 2021-01-05 Gb Ii Corporation Easily disassembled folding knife
MX2020003734A (es) * 2018-09-06 2020-08-03 Ningbo Hongdi Measuring Tape Ind Co Ltd Trincheta con contratuerca.
US11279050B2 (en) * 2019-03-28 2022-03-22 Gb Ii Corporation Easily disassembled folding knife with replaceable blade
USD925324S1 (en) * 2019-08-29 2021-07-20 Milwaukee Electric Tool Corporation Knife
US11198228B2 (en) * 2019-11-18 2021-12-14 Stanley Black & Decker, Inc. Knife with integrated blade snapper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005290A (en) * 1987-05-08 1991-04-09 The Stanley Works Limited Utility knives
US20030150117A1 (en) * 2002-02-11 2003-08-14 Owoc Greg J. Utility knife
CN101659061A (zh) * 2008-08-15 2010-03-03 斯坦利工厂 具有刀片存储系统的多用途刀
CN106272568A (zh) * 2016-10-17 2017-01-04 顺德工业(江苏)有限公司 一种美工刀
CN206748479U (zh) * 2017-03-25 2017-12-15 宁波宏迪尺业有限公司 一种美工刀推手

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765089A (en) * 1971-06-16 1973-10-16 Nippon Tenshashi Kk Knife with adjustable blade
FR2349415A1 (fr) * 1976-04-30 1977-11-25 Stanley Mabo Instrument a decouper du genre a lame fractionnable et amovible
GB1585641A (en) * 1977-09-08 1981-03-11 Stanley Tools Ltd Replaceable blade knife
GB2083775A (en) * 1980-09-17 1982-03-31 Precision Mfg Serv Trimming knife
US4858320A (en) * 1988-04-04 1989-08-22 Lemaire Denis J Wedge lock for pocket knife blade
US8793881B2 (en) * 2008-08-15 2014-08-05 Stanley Black & Decker, Inc. Utility knife with blade lock
US20110283542A1 (en) * 2010-05-21 2011-11-24 Yuewei Wu Retractable Utility Knife
US8413339B2 (en) * 2011-02-03 2013-04-09 Stanley Black & Decker, Inc. Quick change snap off knife
US9457483B2 (en) 2014-01-24 2016-10-04 Sdi Corporation Cutter assembly having dual locking effect
US11207790B2 (en) * 2017-11-27 2021-12-28 Andrew Buerk Out-the-front knife with side locking mechanism
MX2020003734A (es) * 2018-09-06 2020-08-03 Ningbo Hongdi Measuring Tape Ind Co Ltd Trincheta con contratuerca.
WO2020107598A1 (zh) * 2018-11-27 2020-06-04 宁波宏迪尺业有限公司 一种带止锁结构的实用刀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005290A (en) * 1987-05-08 1991-04-09 The Stanley Works Limited Utility knives
US20030150117A1 (en) * 2002-02-11 2003-08-14 Owoc Greg J. Utility knife
CN101659061A (zh) * 2008-08-15 2010-03-03 斯坦利工厂 具有刀片存储系统的多用途刀
CN106272568A (zh) * 2016-10-17 2017-01-04 顺德工业(江苏)有限公司 一种美工刀
CN206748479U (zh) * 2017-03-25 2017-12-15 宁波宏迪尺业有限公司 一种美工刀推手

Also Published As

Publication number Publication date
EP3674042B1 (en) 2023-07-12
KR20200051719A (ko) 2020-05-13
EP3674042A1 (en) 2020-07-01
US20200276722A1 (en) 2020-09-03
PL3674042T3 (pl) 2023-12-18
RU2020113339A (ru) 2022-03-01
EP3674042C0 (en) 2023-07-12
ES2959433T3 (es) 2024-02-26
EP3674042A4 (en) 2021-05-26
BR112020006538A2 (pt) 2021-03-16
RU2020113339A3 (zh) 2022-03-01
KR102418863B1 (ko) 2022-07-11
UA127353C2 (uk) 2023-07-26
US11267144B2 (en) 2022-03-08
MX2020003734A (es) 2020-08-03

Similar Documents

Publication Publication Date Title
WO2020047891A1 (zh) 一种带锁紧螺母的美工实用刀具
US6349473B1 (en) Utility knife
US20190176349A1 (en) Utility knife
US20120279071A1 (en) Utility Knife
TWI739302B (zh) 可單一動作轉換的萬用刀具及刮刀及將刀片的功能從萬用刀具轉換至刮刀的方法
EP2511056A1 (de) Sicherheits-Messer
CZ28630U1 (cs) Mechanismus zásuvky pro demontáž a montáž panelu
US11446832B2 (en) Retractable utility knife
EP2653266B1 (en) Spring clamp
US9808942B2 (en) Knife with replaceable blade
CN109129582B (zh) 一种带锁紧螺母的美工实用刀具
US11027440B2 (en) Self-retracting knife with replaceable blade
CN109434879B (zh) 一种带止锁结构的实用刀
CN113500632A (zh) 刀片位置可固定的扳机刀
WO2020107598A1 (zh) 一种带止锁结构的实用刀
CN108761800B (zh) 一种头戴设备及其快速拆装装置
CN208867220U (zh) 一种带锁紧螺母的美工实用刀具
CN216000593U (zh) 刀片位置可固定的扳机刀
RU2779499C2 (ru) Универсальный нож со стопорной гайкой
US11154995B2 (en) Folding knife
CA1320839C (en) Door locking arrangement
GB2605369A (en) Extendable garden shears
CN212919472U (zh) 一种新型实用刀
CN220197258U (zh) 一种便于使用的无齿锯
CN214055361U (zh) 一种可扩展的管子割刀

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2018932627

Country of ref document: EP

Effective date: 20200325

Ref document number: 20207009807

Country of ref document: KR

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18932627

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112020006538

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 112020006538

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20200331