WO2013163783A1 - 一种美工刀 - Google Patents

一种美工刀 Download PDF

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Publication number
WO2013163783A1
WO2013163783A1 PCT/CN2012/000910 CN2012000910W WO2013163783A1 WO 2013163783 A1 WO2013163783 A1 WO 2013163783A1 CN 2012000910 W CN2012000910 W CN 2012000910W WO 2013163783 A1 WO2013163783 A1 WO 2013163783A1
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WO
WIPO (PCT)
Prior art keywords
tool holder
blade
holder
base
push button
Prior art date
Application number
PCT/CN2012/000910
Other languages
English (en)
French (fr)
Inventor
王爱国
Original Assignee
浙江兴达文具有限公司
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
Application filed by 浙江兴达文具有限公司 filed Critical 浙江兴达文具有限公司
Priority to US14/389,234 priority Critical patent/US9656398B2/en
Publication of WO2013163783A1 publication Critical patent/WO2013163783A1/zh

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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
    • 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

Definitions

  • the invention relates to a utility knife. Background technique
  • a utility knife is a common hand tool that is often used to cut paper, leather, plastic sheets or cardboard.
  • many utility knives In order to replace the blades, many utility knives have the function of preparing knives on the market.
  • the Chinese patent "2009.076.1” "a utility knife that can automatically change blades", including the outer casing and the blade.
  • a magnetic pusher block slidable along the length of the outer casing, wherein the outer casing is provided with a vertical blade storage compartment adapted to the shape of the blade, and the magnetic pusher block forms a bottom surface of the blade storage compartment;
  • the head has a cutting edge;
  • the magnetic pushing block has an upwardly extending push button, and the upper edge of the outer casing is provided with a pushing groove along the length of the outer casing, and the push button extends into the pushing groove, and the front end of the pushing groove has a lateral groove The direction of the groove extends away from the blade storage compartment.
  • the blade In use, the blade is sucked onto the magnetic pusher block, and the magnetic pusher block is pushed forward by pushing the push button, and the blade on the pull-and-magnetic pusher block is pushed forward to push the blade out of the edge.
  • the push button When the push button is pushed to the foremost end of the push slot, the push button is pulled into the arc groove, and the magnetic push block generates a certain degree of rotation, so that the blade can be removed.
  • this type of structure can quickly change the blade, it has only one type of blade function like most utility knives on the market. It has a small range of use and has no gear function. It cannot use different types of blades as needed. It cannot be positioned according to the need of the length of the blade, and further improvement is needed. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a utility knife with a safe, double-blade switch for the above-mentioned state of the art, not only can use different blades as needed, but also can be geared according to the need of the length of the blade during use. Positioning.
  • a utility knife comprising a casing formed by a combination of an upper cover and a base, wherein the casing is provided with a slidable knife holder, and the head of the casing is provided for
  • the expansion and contraction opening of the blade is characterized in that: the tool holders are two sets arranged in parallel, and are respectively slidably disposed in the front half cavity of the casing through an intermediate tool holder gasket, and each set of the tool holders is different
  • the upper end of the knife holder is respectively provided with a push button having an upward pop-up tendency, and the upper edge of the housing is provided with a shape groove corresponding to the upper edge of the knife holder gasket, the strip groove and the knife holder pad
  • Two parallel push grooves for sliding the two push buttons are formed between the upper edges of the strips, and a plurality of sets of gear slots for the push button positioning are respectively arranged on the inner walls of the two sides of the strip grooves, and the side portions of the push buttons are respectively
  • the tool holder is a magnetic tool holder, and is respectively magnetically attracted to both sides of the tool holder gasket, and the knife holder gasket is fixedly disposed on the base, and the front end surface of the knife holder gasket and the head of the housing The opening is flush, and there is a gap for the two sides of the blade to expand and contract.
  • the upper end of the blade holder is provided with an upper edge folded to both sides, and the upper edge forms two parallel pushing grooves with the strip hole of the housing.
  • a front surface of the tool holder is formed with a suction groove for placing a blade
  • a back surface of the tool holder is provided with a lateral convex strip
  • two sides of the knife holder are formed with a guide rail for inserting the convex strip
  • the tool holder is slidably disposed on the tool holder spacer by a cooperation of the rib and the guide rail.
  • the rear upper end of the tool holder is provided with a slot for inserting a push button, and a return spring is supported between the slot and the bottom of the push button, so that the push button has a tendency to always pop up upward
  • the inner side of the push button is provided with a protrusion that is opposite to the upper edge of the tool holder pad.
  • the leg is disposed on the outer side of the push button and is positioned to cooperate with the gear position groove.
  • the top end of the blade is provided with at least one bayonet
  • the back surface of the blade holder is provided with a lock block corresponding to the position of the bayonet
  • one end of the lock block is provided with a flange matched with the bayonet.
  • the flange is not limited by the notch in the blade holder, and the other end of the locking block is provided with a circular hole.
  • the locking block is placed on the circular column on the back of the tool holder through the circular hole, and the locking block is rounded.
  • a bulge is arranged above the hole, and a spring is supported between the lock block and the tool holder, so that the lock block has a tendency to always rotate downward and lock the bayonet of the blade, and a bevel convex is respectively arranged at the front end of the top inner wall of the base and the upper cover.
  • the block when pushing the push button to the foremost end of the push groove, the beveled protrusion abuts against the lobe on the lock block, and against the elastic force of the spring, the lock block is rotated upward to disengage the flange from the bayonet of the blade.
  • the rear half of the housing is provided with a spare tool holder for placing a spare blade.
  • the front end of the preparation tool holder is provided with a protruding post on both sides, and the other end is provided with elastic buckles on both sides thereof.
  • the lower end of the rear portion of the body is provided with an opening, and the inner wall of the housing is respectively provided with a concave hole corresponding to the protruding post and the elastic buckle, and a card slot, wherein the preparation tool holder is disposed in the rear cavity of the housing, and is The lower end of the housing is rotatably opened.
  • the preparation tool holder is formed by plastic molding, and the bottom of the preparation tool holder is formed into an arc shape matched with the housing, and the preparation tool holder is provided with a cutting groove, and an elastic card for fixing the spare blade is provided.
  • the bottom end of the base and the upper cover is provided with a circular arc-shaped opening, and the upper ends of the elastic buckles on both sides of the preparation tool holder are formed into arc-shaped protrusions that cooperate with the arc-shaped openings, and the arc-shaped protrusions They are respectively embedded in the arc-shaped openings of the base and the upper cover by the size matching, and are fastened and fixed by the elastic buckles on the upper end and the card slots on the base and the upper cover.
  • a middle of the base is provided with a connecting post
  • a rear end of the tool holder spacer is provided with a corresponding through hole
  • the upper cover is provided with a corresponding connecting counterbore
  • the tool holder gasket is open
  • the hole is sleeved on the connecting post, and a connecting screw passes through the connecting hole of the upper cover, and is screwed into the connecting post of the base to fix the upper cover, the blade holder and the base.
  • a small connecting post is disposed under the tail of the base, and a corresponding counterbore is disposed under the tail of the upper cover, and is fixed by a screw connection.
  • the base and the upper cover are combined to form a top portion above the tail. Hanging hanging holes.
  • the gear slot is three to four, respectively, which are respectively disposed on the inner wall of the top end of the base and the upper cover, and Both sides of the groove.
  • the lower portion of the tool holder spacer is provided with an elastic strip with a chuck, and cooperates with the holder.
  • the outer side of the upper cover is covered with a two-color upper cover plastic coating and an upper cover plastic
  • the outer side of the base is covered with a two-color base plastic coating and a base plastic coating.
  • the invention has the advantages that: two sets of tool holders and blades are provided, and different blades can be used according to different needs, which greatly increases the use range of the utility knife, and is safe to use and convenient to operate. Simply press and push each push button forward to drive the knife holder forward, while the blade that is attracted to the tool holder also slides out of the housing and can be positioned and equipped.
  • the knife holder can replace the blade in time.
  • the invention has the advantages of beautiful appearance, safe use and convenient operation, and has the functions of preparing a knife and a double blade, and can not only use different blades according to needs, but also can realize rapid tool change and gear position positioning, and the structure is reasonable and practical.
  • Figure 1 is a cross-sectional view showing the structure of an embodiment of the present invention
  • FIG. 3 is a partial structural schematic view of an embodiment of the present invention.
  • FIG. 4 is a schematic view showing the working principle of loading a tool holder into a housing according to an embodiment of the present invention
  • FIG. 5 is a schematic structural view of an appearance of an embodiment of the present invention. detailed description
  • the utility knife includes a housing 19, a tool holder spacer 4 disposed in the housing, two sets of tool holders 3, two blades 5, two push buttons 6, and a preparation tool holder 7. Main components;
  • the casing 19 is formed by abutting the aluminum alloy die-cast upper cover 2 and the base 1.
  • the upper cover 2 and the base 1 are joined to each other to form an opening 18 for the blade to expand and contract, and a vertical groove 17 is formed on the upper edge.
  • the top wall of the base 1 and the top cover 2 are sequentially formed into four sets of gear slots la;
  • the tool holder gasket 4 is made of stainless steel material, and is coated with plastic, and is provided.
  • the middle portion of the cavity in the front half of the housing 19 is fixed on the base 1, and the front end surface thereof is flush with the head opening of the housing, and a gap for the expansion and contraction of the blades 5 on both sides is left, and the upper end of the blade holder 4 is left.
  • the upper edge 41 is folded to the sides, the upper edge 41 is placed in the middle of the strip groove 17, and the upper edge 41 and the strip groove 17 form two parallel pushing grooves, and the tool holder 3 is a magnetic tool holder.
  • the magnetic tool is respectively adsorbed on both sides of the blade holder 4, and the front surface of the tool holder 3 is formed with a suction groove 33 for placing the blade 5.
  • the back surface of the tool holder 3 is provided with a lateral convex strip, and two of the knife holder 4
  • a guide rail 42 is formed on the side surface for inserting the rib, and the turret 3 is slidably disposed on the turret pad by the cooperation of the rib and the guide rail 42.
  • the lower portion of the blade holder 4 is provided with an elastic strip 44 with a chuck 44a, and is engaged with the blade holder 3, and the elastic strip 44 is formed by notching the blade holder 4, and the chuck 44a is oriented.
  • Outer convex The "V" shape is simple in structure. When any one of the two tool holders is pushed out, the protruding head of the elastic strip 44 is triggered to be ejected to the other side and cannot be reset, so that the other holder cannot be pushed out.
  • the rear end of the tool holder 3 is provided with a slot 31 for inserting the push button 6, the push button 6 is slidably disposed in the push slot le, and the lower end is inserted in the slot 31 of the tool holder 3
  • a return spring 12 is supported between the slot 31 and the bottom of the push button 6, so that the push button 6 has a tendency to always eject upward, and the back side of the push button 6 is provided to be offset from the upper edge 41 of the tool post spacer 4.
  • the position of the bump 62 and the outer side of the push button 6 are matched with the gear slot la, so that the respective tool holder 3 and the blade 5 can be slid along the push slot le by the push button 6 to realize the blade. 5 telescopic and gear positioning;
  • the blades 5 are two sets, one set is a common blade, and the other set is a blade with an elbow, which is respectively sucked into the suction groove 33 of the two sets of the tool holder 3, and the top end of the blade 5 is provided with two bayonet 51.
  • the back surface of the tool holder 3 is provided with a locking block 8 corresponding to the position of the bayonet 51.
  • One end of the locking block 8 is provided with a flange 81 that cooperates with the bayonet.
  • the flange 81 is limited to the blade through the notch on the tool holder 3.
  • the other end of the locking block 8 is provided with a circular hole 83.
  • the back surface of the tool holder 3 is provided with a corresponding circular column 32.
  • the locking block 8 is rotatably sleeved and attached to the tool holder 3 through the circular hole 83.
  • the circular column 32 on the back surface is adsorbed on the back surface of the tool holder 3 by the magnetic force of the tool holder 3.
  • the locking block 8 is provided with a convex angle 82 above the circular hole 83.
  • the convex angle 82 is a convex portion with a slope, and the locking block 8
  • a spring 9 is supported between one end and the tool holder 3, so that the lock block 8 has a tendency to always rotate downward and lock with the bayonet 51 of the blade 5.
  • the other end of the lobe 82 is a formed bevel, on the base 1 and
  • the front end of the top inner wall of the cover 2 is respectively provided with a corresponding beveled protrusion lf, when the push button 6 is pushed and pushed to the push groove
  • the beveled projection If is exactly inclined with the lobe 82 on the lock block 8, so that the lock block 8 is rotated upward against the elastic force of the spring 9, so that the flange 81 on the lock block 8 is taken from the bayonet 51 of the blade 5. Disengaged, so that the blade 5 can be easily removed for replacement;
  • the preparation tool holder 7 is disposed in the cavity of the rear half of the casing 19.
  • the preparation tool holder 7 is formed by plastic molding, and the bottom portion is formed into an arc shape matching the casing 19, and the upper portion is provided with a preparation groove 71 for preparing the knife.
  • the slot 71 is provided with an elastic card 72 for fixing the spare blade.
  • the front end of the bracket 7 is provided with a protrusion 73 on both sides, and the other end is provided with an elastic buckle 74.
  • the base 1 and the inner wall of the upper cover 2 are respectively disposed.
  • the cooperation with the base plate 1 and the slot 25 on the upper cover 2 can be connected to or disconnected from the bottom of the housing, and can be rotated by the protrusions 73 and the recessed holes lg of the base 1 and the upper cover 2, so that the spare blade is taken.
  • the elastic buckle 74 is caused.
  • the spare tool holder 7 can be extended from the bottom of the housing and rotated downward to take the spare blade. After use, the spare tool holder 7 is rotated upward, and the rear buckle is inserted from the bottom of the housing.
  • a "7"-shaped projection lh is formed on the upper and lower sides of the front end of the base 1, and a “7"-shaped groove is formed on the upper and lower sides of the front end of the upper cover 2, so that the alignment is beautiful and firm after the combination;
  • a connecting post lb is disposed in the middle of the base 1.
  • the rear end of the turret spacer 4 is provided with a corresponding through hole 43. The turret spacer 4 is sleeved on the connecting post lb through the through hole 43, and the upper cover 2 is opened correspondingly.
  • a connecting screw 10 passing through the connecting counterbore 21 of the upper cover 2 screwing
  • the upper cover 2, the knife holder 4 and the base 1 are fixedly connected to the connecting column lb of the base 1.
  • a small connecting column ld is arranged below the tail of the base 1, and a corresponding counterbore 23 is arranged below the tail of the upper cover 2.
  • the upper part of the upper cover 2 is covered with a two-color upper cover plastic bag 15 and the upper cover rubber cover.
  • the outer side of the base 1 is covered with a two-color base plastic bag 13 and a base rubber cover 14, which not only has a beautiful appearance, but also has a very comfortable hand feeling.
  • simply pressing and pushing the push button 6 can drive a tool holder 3 to slide forward, while the blade 5 sucked on the tool holder 3 also slides forward and extends out of the housing 19,
  • the push button 6 is moved to the gear slot la, the push button 6 is released, so that the pin 61 on the push button is engaged with the gear slot la, which can be positioned according to the need of the telescopic length of the blade 5 when used;
  • the protruding head of the elastic strip 44 is triggered to eject toward the other side, blocking the other holder, so that the other holder cannot be pushed out; different blades can be used as needed.
  • the push button 6 When the blade 5 needs to be replaced, the push button 6 is pushed and pushed forward to the foremost end of the push groove le, and the beveled bump If is exactly inclined with the lobe 82 on the lock block 8 so that the lock block 8 overcomes the spring 9
  • the elastic force is rotated upwards, so that the flange 81 on the lock block 8 is disengaged from the bayonet 51 of the blade 5, so that the lock of the blade 5 by the lock block 8 is released, and the old blade can be easily removed or further replaced with a new blade.

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

Abstract

一种美工刀，包括壳体（19）和平行设置的两组刀架（3），该刀架分别通过一刀架垫片（4）可滑动地设于壳体的前半部分腔体内，每组刀架上置有不同类别的刀片（5），刀架的上端分别设有一具有向上弹出趋势的推钮（6），该壳体的上沿对应于刀架垫片的上边沿（41）设有一条形槽（17），该条形槽与刀架垫片的上边沿之间形成两个平行的供两个推钮滑动的推槽（1e），在条形槽的两侧内壁上分别设有若干组可供推钮定位的档位槽（1a），推钮的侧部设有与档位槽配合进行定位的卡脚（61），从而实现刀片的伸缩及档位定位。

Description

一种美工刀
技术领域
本发明涉及一种美工刀。 背景技术
美工刀是一种常见的手工工具， 常用来切割纸张、 皮革、 塑料片或硬纸板等。现有 的美工刀种类很多， 为了更换刀片方便， 市场上出现了很多美工刀具有备刀的功能， 如 专利号为 200920117976.1的中国专利《一种可自动换刀片的美工刀》，包括外壳和刀片， 外壳内设有可沿外壳的长度方向滑动的磁性推刀块，外壳内设有竖向的与刀片的形状相 适配的刀片储藏室， 磁性推刀块构成刀片储藏室的底面； 外壳的头部设有出刀口； 磁性 推刀块具有向上延伸的推钮，外壳的上沿设有沿外壳长度方向的推槽，推钮伸入推槽内， 推槽的前端具有一横向的拐槽， 拐槽的延伸方向背离刀片储藏室。 使用时将刀片吸合在 磁性推刀块上， 通过推动推钮将磁性推刀块向前推， 同时也带动吸合再磁性推刀块上的 刀片向前推从而将刀片推出出刀口。 当推钮推至推槽的最前端时， 将推钮扳入拐槽内， 则磁性推刀块产生一定程度的转动， 从而即可将刀片取下来。 这种结构虽然可以快速更 换刀片， 但是与市场上的大多数美工刀一样只具有一种刀片的使用功能， 不仅使用范围 小， 而且没有档位功能， 不能根据需要使用不同类型的刀片， 而且也不能按照刀片伸缩 长度的需要进行定位， 还需进一步改进。 发明内容
本发明所要解决的技术问题是针对上述的技术现状而提供一种使用安全、具有双刀 片开关的美工刀， 不仅可以根据需要使用不同的刀片， 而且可以根据使用时刀片伸缩长 度的需要进行档位定位。
本发明解决上述技术问题所采用的技术方案为：一种美工刀，包括由上盖和底座对 合而成的壳体， 壳体内设有可滑动的刀架， 壳体的头部设有供刀片伸缩的开口， 其特征 在于： 所述刀架为平行设置的两组， 分别通过一中间的刀架垫片可滑动地设于壳体的前 半部分腔体内， 每组刀架上置有不同类别的刀片，.刀架的上端分别设有一具有向上弹出 趋势的推钮， 所述壳体的上沿对应于刀架垫片的上边沿设有一条形槽， 该条形槽与刀架 垫片的上边沿之间形成两个平行的供两个推钮滑动的推槽，在条形槽的两侧内壁上分别 设有若干组可供推钮定位的档位槽， 推钮的侧部设有与档位槽配合进行定位的卡脚， 所 述推钮可滑动地设于推槽中， 并带动各自的刀架和刀片沿着推槽滑动， 同时通过侧部的 卡脚与档位槽配合进行定位， 从而实现刀片的伸缩及档位定位。
作为改进， 所述刀架为磁性刀架， 分别通过磁力吸附在刀架垫片的两侧， 所述刀架 垫片固定设于底座上， 刀架垫片的前端面与壳体的头部开口齐平， 并留有供两侧刀片伸 缩的间隙， 所述刀架垫片的上端设有向两侧翻折的上边沿， 上边沿与壳体的条形孔形成 二个平行的推槽； 所述刀架的正面成型有用于放置刀片的吸刀槽， 刀架的背面设有横向 的凸条， 所述刀架垫片的两侧表面上成型有可供所述凸条嵌入的导轨， 所述刀架通过凸 条与导轨的配合可滑动地设置在刀架垫片上。
作为改进，所述刀架的后部上端设有一可供推钮插置的插槽，在插槽与推钮的底部 之间支撑有一复位弹簧， 使推钮具有始终向上弹出的趋势， 所述推钮的里侧设有与刀架 垫片的上边沿相抵限位的凸块， 所述卡脚设于推钮的外侧， 与档位槽配合定位。
作为改进，所述刀片的顶端设有至少一个卡口，所述刀架的背面设有与卡口位置对 应锁定的锁块， 所述锁块的一端设有与卡口配合的凸缘， 所述凸缘穿过刀架上的缺口限 位在刀片的卡口中， 锁块的另一端设有一圆孔， 锁块通过圆孔套置在刀架背面的圆形柱 上， 在锁块圆孔的上方设有一凸角， 锁块与刀架之间支撑有一弹簧， 使锁块具有始终向 下转动与刀片的卡口锁定的趋势， 在底座与上盖的顶部内壁前端分别设有一斜面凸块， 当推动推钮至推槽最前端时， 所述斜面凸块与锁块上的凸角相抵， 并克服弹簧的弹力使 得锁块向上转动， 实现凸缘从刀片的卡口中脱离。
再改进，所述壳体的后半部分腔体内设有一用于放置备用刀片的备刀架，备刀架的 一端两侧设有凸柱， 另一端两侧设有弹性卡扣， 所述壳体的后部下端设有开口， 在壳体 内壁上分别设有与凸柱、 弹性卡扣对应的凹孔和卡槽， 所述备刀架置于壳体的后部腔体 内， 并可从壳体的下端可转动地打开。
再改进， 所述备刀架采用塑胶成型， 备刀架的底部成型为与壳体相适配的弧形， 备 刀架内设有备刀槽， 并设有用于固定备用刀片的弹性卡片， 所述底座和上盖的后部下端 设有圆弧形开口，所述备刀架的两侧弹性卡扣的上端成型为与圆弧形开口配合的圆弧状 凸起， 该圆弧状凸起通过尺寸配合分别嵌置于底座和上盖的圆弧形开口处， 再通过上端 的弹性卡扣与底座和上盖上的卡槽相扣接固定。
再改进， 所述底座的中部设有一连接柱， 所述刀架垫片的后端设有对应的通孔， 所 述上盖上开设有相应的连接沉孔， 所述刀架垫片的通孔套置在连接柱上， 一连接螺钉穿 过上盖的连接孔， 拧入底座的连接柱中将上盖、 刀架垫片和底座固定连接。
进一步改进，所述底座的尾部下方设有一小连接柱，所述上盖的尾部下方设有对应 的沉孔， 通过螺钉连接固定， 所述底座与上盖对合后在尾部上方形成一可用于挂置的挂 孔。
再进一步改进， 所述档位槽为三~四个， 分别开设在底座与上盖的顶端内壁上、 条 形槽的两侧。
作为改进， 所述刀架垫片的下部设置了带卡头的弹性条， 和刀架配合。
最后，所述上盖的外侧包覆有双色的上盖包塑和上盖包胶，所述底座的外侧包覆有 双色的底座包塑和底座包胶。
与现有技术相比， 本发明的优点在于： 设有二组刀架、 刀片， 可以根据不同的需要 使用不同的刀片， 大大增加了美工刀的使用范围， 同时使用安全、 操作也很方便， 只需 按下并向前推动各自的推钮就能带动刀架向前滑动， 同时吸合在刀架上的刀片也随着滑 动伸出壳体， 并且可以进行档位定位， 同时设有备刀架， 可以及时更换刀片。 本发明外 表美观、 使用安全、 操作方便， 具有备刀及双刀片功能， 不仅可以根据需要使用不同的 刀片， 而且可以实现快速换刀和档位定位， 结构合理实用。 附图说明
图 1为本发明实施例的结构剖视图；
图 2为本发明实施例的结构分解图；
图 3为本发明实施例的局部结构示意图；
图 4为本发明实施例的备刀架装入壳体的工作原理图；
图 5为本发明实施例的外观结构示意图。 具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图 1〜图 5所示， 该美工刀， 包括壳体 19、 设于壳体内的刀架垫片 4、 二组刀架 3、 二个刀片 5、 二个推钮 6以及备刀架 7等主要部件；
壳体 19是由铝压铸的上盖 2与底座 1对合而成， 上盖 2与底座 1对合后的壳体的 头部形成供刀片伸缩的开口 18， 在上沿形成一条形槽 17， 并在条形槽 17的两侧、 底座 1与上盖 2的顶端内壁依次成型为四组档位槽 la;刀架垫片 4是采用不锈钢材料为内衬、 外加包塑制成， 设于壳体 19的前半部分腔体内中间部位， 固定在底座 1上， 其前端面 与壳体的头部开口齐平， 并留有供两侧刀片 5伸缩的间隙， 刀架垫片 4的上端设有向两 侧翻折的上边沿 41，上边沿 41正好置于条形槽 17的中部，上边沿 41与条形槽 17形成 二个平行的推槽 le， 刀架 3为磁性刀架， 分别通过磁力吸附在刀架垫片 4的两侧， 刀架 3的正面成型有用于放置刀片 5的吸刀槽 33， 刀架 3的背面设有横向的凸条， 刀架垫片 4的两侧表面上成型有可供所述凸条嵌入的导轨 42， 刀架 3通过凸条与导轨 42的配合 可滑动地设置在刀架垫片 4上； 刀架垫片 4的下部设置了带卡头 44a的弹性条 44，和刀 架 3配合， 而且弹性条 44通过在刀架垫片 4上开槽而形成， 卡头 44a呈现向外侧凸出 的 " V"字型， 这样结构简单， 当两个刀架中的任何一个推出使用时， 会触发弹性条 44 凸起的卡头向另一侧弹出无法复位， 使另一个刀架则无法推出， 起到保护作用， 刀架 3 的后部上端设有一可供推钮 6插置的插槽 31， 推钮 6可滑动地设置在推槽 le， 下端插 置在刀架 3的插槽 31中， 插槽 31与推钮 6的底部之间支撑有一复位弹簧 12， 使推钮 6 具有始终向上弹出的趋势， 推钮 6的里侧设有与刀架垫片 4的上边沿 41相抵限位的凸 块 62，推钮 6的外侧设有卡脚 61与档位槽 la配合定位，这样就可以通过推钮 6带动各 自的刀架 3和刀片 5沿着推槽 le滑动， 从而实现刀片 5的伸缩及档位定位；
刀片 5为二组， 一组为普通刀片， 另一组为具有弯头的刀片， 分别吸合在二组刀架 3的吸刀槽 33内， 刀片 5的顶端设有二个卡口 51 , 刀架 3的背面设有与卡口 51位置对 应锁定的锁块 8， 锁块 8的一端设有与卡口配合的凸缘 81， 凸缘 81穿过刀架 3上的缺 口限位在刀片 5的卡口 51中， 锁块 8的另一端设有一圆孔 83， 刀架 3的背面设有对应 的圆形柱 32，锁块 8通过圆孔 83可转动地套置吸附在刀架 3背面的圆形柱 32上，并通 过刀架 3的磁力吸附在刀架 3背面， 锁块 8在圆孔 83的上方设有一凸角 82， 凸角 82 是带斜面的凸部， 锁块 8的一端与刀架 3之间支撑有一弹簧 9， 使锁块 8具有始终向下 转动与刀片 5的卡口 51锁定的趋势， 凸角 82的另一端就是成型出的斜面， 在底座 1与 上盖 2的顶部内壁前端分别设有一相对应的斜面凸块 lf， 当按下并推动推钮 6至推槽 le最前端时， 该斜面凸块 If与锁块 8上的凸角 82正好斜面相抵， 使得锁块 8克服弹簧 9的弹力向上转动， 从而使得锁块 8上的凸缘 81从刀片 5的卡口 51中脱离， 这样就可 以轻松地将刀片 5取下进行更换；
备刀架 7设置于壳体 19的后半部分腔体内， 备刀架 7采用塑胶成型， 其底部成型 为与壳体 19相适配的弧形，其上部设有备刀槽 71，备刀槽 71上设有用于固定备用刀片 的弹性卡片 72， 备刀架 7的一端两侧设有凸柱 73， 另一端两侧设有弹性卡扣 74， 底座 1和上盖 2的内壁上分别设有对应的凹孔 lg和卡槽 25， 底座 1和上盖 2的后部下端设 有圆弧形开口 lc和 22， 备刀架 7的两侧弹性卡扣 74的上端成型为与圆弧形开口 lc和 22配合的圆弧状凸起，该圆弧状凸起通过尺寸配合分别嵌置于底座 1和上盖 2的圆弧形 开口 lc和 22处， 备刀架 7通过弹性卡扣 74与底座 1和上盖 2上的卡槽 25的配合可和 壳体底部连接或者脱离打开， 并通过凸柱 73与底座 1和上盖 2上的凹孔 lg配合实现转 动， 这样拿取备用刀片时， 只要用手按压备刀架 7的后端的圆弧状凸起， 使得弹性卡扣 74从壳体中脱离， 就可以将备刀架 7从壳体底部伸出并向下转动， 进行拿取备用刀片， 用完后， 再将备刀架 7向上转动， 从壳体的底部插入后扣接固定；
底座 1的前端上下两侧成型有一 "7"字型凸块 lh， 上盖 2的前端上下两侧成型有 与之配合的 "7"字型凹槽， 这样使得对合后即美观又牢固； 底座 1 的中部设有一连接 柱 lb，刀架垫片 4的后端设有对应的通孔 43，刀架垫片 4通过通孔 43套置在连接柱 lb 上， 上盖 2上开设有对应的连接沉孔 21， 一连接螺钉 10穿过上盖 2的连接沉孔 21， 拧 入底座 1的连接柱 lb中将上盖 2、刀架垫片 4和底座 1固定连接，底座 1的尾部下方设 有一小连接柱 ld， 上盖 2的尾部下方设有对应的沉孔 23， 通过螺钉 11连接固定， 并且 底座 1与上盖 2对合后在尾部上方形成一可用于挂置的挂孔 24;上盖 2的外侧包覆有双 色的上盖包塑 15和上盖包胶 16， 底座 1 的外侧包覆有双色的底座包塑 13和底座包胶 14， 不仅外观美观， 而且使用时手感非常舒适。
工作时， 只需按下并向前推动推钮 6即可带动一个刀架 3向前滑动， 同时吸合在刀 架 3上的刀片 5也随着向前滑动并伸出壳体 19， 当推钮 6活动到档位槽 la时， 松开推 钮 6， 使推钮上的卡脚 61与档位槽 la配合定位， 可以根据使用时刀片 5伸缩长度的需 要进行定位； 而且当两个刀架中的任何一个推出使用时， 会触发弹性条 44凸起的卡头 向另一侧方向弹出， 阻挡住另一刀架， 使另一个刀架则无法推出； 可以根据需要使用不 同的刀片 5， 需要更换刀片 5时， 按下并向前推动推钮 6至推槽 le的最前端， 该斜面凸 块 If与锁块 8上的凸角 82正好斜面相抵， 使得锁块 8克服弹簧 9的弹力向上转动， 使 得锁块 8上的凸缘 81从刀片 5的卡口 51中脱离， 使得锁块 8对刀片 5的锁定解除， 就 可以轻松地将旧刀片取下或者进一步换上新刀片， 松开推钮 6， 使锁块 8再次对刀片 5 进行锁定； 用手按压备刀架 7的后端的圆弧状凸起， 使得弹性卡扣 74从壳体底部伸出， 就可以将备用刀片取下， 取完后， 将备刀架 7向上转动与壳体扣接固定， 这样就可以快 速地更换刀片 5。

Claims

权 利 要 求
1、 一种美工刀， 包括由上盖 (2)和底座 (1)对合而成的壳体 (19)， 壳体 (19)内设有可滑 动的刀架 (3)， 壳体 (19)的头部设有供刀片伸缩的开口 (18)， 其特征在于： 所述刀架 (3)为 平行设置的两组， 两组刀架 (3)分别通过一设置在两者中间的刀架垫片 (4)可滑动地设于 壳体 (19)的前半部分腔体内；
每组刀架 (3)上置有不同类别的刀片 (5)， 刀架 (3)的上端分别设有一具有向上弹出趋 势的推钮 (6)， 所述壳体 (19)的上沿对应于刀架垫片 (4)的上边沿 (41)设有一条形槽 (17)， 该条形槽 (17)与刀架垫片 (4)的上边沿 (41)之间形成两个平行的供两个推钮 (6)滑动的推槽 (le),在条形槽 (17)的两侧内壁上分别设有若干组可供推钮 (6)定位的档位槽 (la)，推钮 (6) 的侧部设有与档位槽 (la)配合进行定位的卡脚 (61)， 所述推钮 (6)可滑动地设于推槽 (le) 中， 并带动各自的刀架 (3)和刀片 (5)沿着推槽 (le)滑动， 同时通过侧部的卡脚 (61)与档位 槽 (la)配合进行定位， 从而实现刀片 (5)的伸缩及档位定位。
2、 根据权利要求 1所述的美工刀， 其特征在于： 所述刀架 (3)为磁性刀架 (3)， 分别 通过磁力吸附在刀架垫片 (4)的两侧， 所述刀架垫片 (4)固定设于底座 (1)上， 刀架垫片 (4) 的前端面与壳体 (19)的头部开口 (18)齐平， 并留有供两侧刀片 (5)伸缩的间隙， 所述刀架 垫片 (4)的上端设有向两侧翻折的上边沿 (41)，上边沿 (41)与壳体 (19)的条形孔形成二个平 行的推槽 (le); 所述刀架 (3)的正面成型有用于放置刀片 (5)的吸刀槽 (33)， 刀架 (3)的背面 设有横向的凸条， 所述刀架垫片 (4)的两侧表面上成型有可供所述凸条嵌入的导轨 (42)， 所述刀架 (3)通过凸条与导轨 (42)的配合可滑动地设置在刀架垫片 (4)上。
3、 根据权利要求 2所述的美工刀， 其特征在于： 所述刀架 (3)的后部上端设有一可 供推钮 (6)插置的插槽 (31)， 在插槽 (31)与推钮 (6)的底部之间支撑有一复位弹簧 (12)， 使 推钮 (6)具有始终向上弹出的趋势， 所述推钮 (6)的里侧设有与刀架垫片 (4)的上边沿 (41) 相抵限位的凸块 (62)， 所述卡脚 (61)设于推钮 (6)的外侧， 与档位槽 (la)配合定位。
4、 根据权利要求 3所述的美工刀， 其特征在于： 所述刀片 (5)的顶端设有至少一个 卡口 (51)， 所述刀架 (3)的背面设有与卡口 (51)位置对应锁定的锁块 (8)， 所述锁块 (8)的一 端设有与卡口 (51)配合的凸缘 (81)， 所述凸缘 (81)穿过刀架 (3)上的缺口限位在刀片 (5)的 卡口 (51)中， 锁块 (8)的另一端设有一圆孔 (83)， 锁块 (8)通过圆孔 (83)套置在刀架 (3)背面 的圆形柱 (32)上， 在锁块 (8)圆孔 (83)的上方设有一凸角 (82)， 锁块 (8)与刀架 (3)之间支撑 有一弹簧 (9)， 使锁块 (8)具有始终向下转动与刀片 (5)的卡口 (51)锁定的趋势， 在底座 (1) 与上盖 (2)的顶部内壁前端分别设有一斜面凸块 (lf)， 当推动推钮 (6)至推槽 (le)最前端时， 所述斜面凸块 (If)与锁块 (8)上的凸角 (82)相抵， 并克服弹簧 (9)的弹力使得锁块 (8)向上转 动， 实现凸缘 (81)从刀片 (5)的卡口 (51)中脱离。
5、根据权利要求 1所述的美工刀， 其特征在于： 所述壳体 (19)的后半部分腔体内设 有一用于放置备用刀片的备刀架 (7)， 备刀架 (7)的一端两侧设有凸柱 (73)， 另一端两侧设 有弹性卡扣 (74)， 所述壳体 (19)的后部下端设有开口 (18)， 在壳体 (19)内壁上分别设有与 凸柱 (73)、 弹性卡扣 (74)对应的凹孔 (lg)和卡槽 (25)， 所述备刀架 (7)置于壳体 (19)的后部 腔体内， 并可从壳体 (19)的下端可转动地打开。
6、 根据权利要求 5所述的美工刀， 其特征在于： 所述备刀架 (7)采用塑胶成型， 备 刀架 (7)的底部成型为与壳体 (19)相适配的弧形， 备刀架 (7)内设有备刀槽 (71)， 并设有用 于固定备用刀片的弹性卡片 (72)，所述底座 (1)和上盖 (2)的后部下端设有圆弧形开口 (lc)， 所述备刀架 (7)的两侧弹性卡扣 (74)的上端成型为与圆弧形开口 (lc)配合的圆弧状凸起， 该圆弧状凸起通过尺寸配合分别嵌置于底座 (1)和上盖 (2)的圆弧形开口 (lc)处， 再通过上 端的弹性卡扣 (74)与底座 (1)和上盖 (2)上的卡槽 (25)相扣接固定。
7、 根据权利要求 1至 5任一权利要求所述的美工刀， 其特征在于： 所述底座 (1)的 中部设有一连接柱 (lb)， 所述刀架垫片 (4)的后端设有对应的通孔 (43)， 所述上盖 (2)上开 设有相应的连接沉孔 (23)， 所述刀架垫片 (4)的通孔 (43)套置在连接柱 (lb)上， 一连接螺钉
(10)穿过上盖 (2)的连接孔，拧入底座 (1)的连接柱 (lb)中将上盖 (2)、刀架垫片 (4)和底座 (1) 固定连接。
8、 根据权利要求 1至 5任一权利要求所述的美工刀， 其特征在于： 所述底座 (1)的 尾部下方设有一小连接柱 (ld)， 所述上盖 (2)的尾部下方设有对应的沉孔 (23), 通过螺钉
(11)连接固定， 所述底座 (1)与上盖 (2)对合后在尾部上方形成一可用于挂置的挂孔 (24)。
9、 根据权利要求 1至 5任一权利要求所述的美工刀， 其特征在于： 所述档位槽 (la) 为三个或四个， 分别开设在底座 (1)与上盖 (2)的顶端内壁上、 条形槽 (17)的两侧。
10、 根据权利要求 1至 5任一权利要求所述的美工刀， 其特征在于： 所述刀架垫片 (4)的下部设置了带卡头 (44a)的弹性条 (44)， 和刀架 (3)配合。
PCT/CN2012/000910 2012-05-03 2012-07-03 一种美工刀 WO2013163783A1 (zh)

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