WO2013091340A1 - 折叠刀 - Google Patents

折叠刀 Download PDF

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Publication number
WO2013091340A1
WO2013091340A1 PCT/CN2012/075515 CN2012075515W WO2013091340A1 WO 2013091340 A1 WO2013091340 A1 WO 2013091340A1 CN 2012075515 W CN2012075515 W CN 2012075515W WO 2013091340 A1 WO2013091340 A1 WO 2013091340A1
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WO
WIPO (PCT)
Prior art keywords
blade
folding knife
mounting hole
spring
locking
Prior art date
Application number
PCT/CN2012/075515
Other languages
English (en)
French (fr)
Inventor
刘冠棚
Original Assignee
阳江市纳丽德工贸有限公司
广东百源实业有限公司
阳江市卫富百源警用器材有限公司
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.)
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=48631400&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2013091340(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 阳江市纳丽德工贸有限公司, 广东百源实业有限公司, 阳江市卫富百源警用器材有限公司 filed Critical 阳江市纳丽德工贸有限公司
Priority to US13/522,373 priority Critical patent/US9975259B2/en
Publication of WO2013091340A1 publication Critical patent/WO2013091340A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B1/00Hand knives with adjustable blade; Pocket knives
    • B26B1/02Hand knives with adjustable blade; Pocket knives with pivoted blade
    • B26B1/04Hand knives with adjustable blade; Pocket knives with pivoted blade lockable in adjusted position
    • B26B1/048Hand knives with adjustable blade; Pocket knives with pivoted blade lockable in adjusted position with a locking member being slidable or movable along the handle

Definitions

  • the present invention relates to the field of hardware tools, and in particular to a folding knife.
  • BACKGROUND OF THE INVENTION Existing folding knives typically do not have a security lock structure or a security lock that is inconvenient to operate.
  • the shrapnel of the folding knife helps the anti-rebound structure to be complicated, difficult to implement, and increases the cost of the folding knife.
  • the object of the present invention is to provide a folding knife to solve the technical problem that the existing folding knife has no safety lock structure or the safety lock is inconvenient to operate.
  • the present invention provides a folding knife, comprising: a blade, an upper portion is provided with a locking switch mounting hole; a handle, a lower portion is provided with a card slot; and a locking switch is disposed in the locking switch mounting hole, and Having a locking portion on a first side of the blade, the locking portion has a locking position that is engaged in the slot when the blade is engaged with the shank, and an unlocking position that is detached from the slot when the blade is separated from the shank .
  • the locking switch mounting hole is a long waist hole parallel to the extending direction of the blade; the locking switch further has: a spring disposed in the long waist hole, and the spring is disposed along the extending direction of the long waist hole; The block is located between one end of the tip of the spring near the blade and the inner wall of the corresponding end of the long waist hole, and the locking portion is connected to the stopper.
  • the lock switch further has a toggle button located on the second side of the blade and connected to the stopper. Further, the outer surface of the toggle button is provided with anti-slip ripples. Further, one end of the stopper connected to the spring is provided with a groove, and one end of the spring near the blade is located in the groove.
  • the stopper further has a cylindrical mounting hole, and the locking portion is connected to the stopper through a cylindrical insertion portion that is interference-fitted with the cylindrical mounting hole.
  • the lock switch further has a lock block matching the shape of the lock switch mounting hole, and the lock portion and the cylindrical plug portion are respectively located at two sides of the lock block.
  • the inner wall of the locking switch mounting hole is formed with two steps, the spring and the stopper correspond to the first step surface, and the locking block corresponds to the second step surface.
  • the folding knife provided by the present invention further includes a elastic piece which is integrally formed with the shank.
  • the folding knife provided by the invention utilizes the locking switch with the locking portion, can realize the safe locking after the blade is folded into the shank, has a simple structure and is easy to realize, and improves the safety performance of the folding knife. .
  • the present invention has other objects, features and advantages. The invention will now be described in further detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG.
  • FIG. 1 is a schematic structural view showing an open state of a folding knife according to a preferred embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional structural view showing a folded state of a folding knife according to a preferred embodiment of the present invention
  • FIG. 3 is a preferred embodiment of the present invention.
  • FIG. 4 is a structural schematic view of the locking portion of the folding knife in an unlocked position according to a preferred embodiment of the present invention
  • FIG. 5 is a dialing of a folding knife according to a preferred embodiment of the present invention.
  • Schematic diagram of the outer surface structure of the movable button and Fig.
  • FIG. 6 is a schematic view showing the positional structure of the elastic piece and the pin of the folding knife of the preferred embodiment of the present invention.
  • the present invention provides a folding knife including a blade 10, and an upper portion is provided with a lock switch mounting hole 11; a handle 30, a lower portion is provided with a card slot 31; and a lock switch 50 is disposed at
  • the lock switch mounting hole 11 has a locking portion 51 on the first side of the blade 10, and the locking portion 51 has a locking position that is locked in the slot 31 when the blade 10 is engaged with the shank 30 and The unlocked position that is detached from the inside of the card slot 31 when the blade 10 is separated from the shank 30.
  • the folding knife provided by the invention realizes the locking when the folding knife is in the folded state by the simple modification of the cutting edge 10 and the shank 30, and the locking knife 50 mounted on the cutting edge 10 is simple in structure, easy to realize, and attached. low cost.
  • the lock switch mounting hole 11 is a long waist hole parallel to the extending direction of the blade 10; the lock switch 50 further has a spring 53 and a stopper 55, wherein the spring 53 is disposed in the long waist hole, and The spring 53 is disposed along the extending direction of the long waist hole; the stopper 55 is located between the end of the spring 53 adjacent to the cutting edge 10 and the inner wall of the corresponding end of the long waist hole, and the locking portion 51 is connected to the stopper 55. .
  • the stopper 55 is placed in the long waist hole at the end near the blade edge by the elastic force of the spring 53, when the blade 10 is folded to the shank 30.
  • the locking portion 51 is in the locked position (the position of the locking portion 51 as shown in Fig. 3).
  • the lock switch 50 also has a toggle button 52 for sliding the lock portion 51.
  • the toggle button 52 is located on the second side of the blade 10 and is coupled to the stop 55. The toggle button 52 moves the stopper 55 to the direction of the root of the blade 10 to compress the spring 53. Since the locking portion 51 is connected to the stopper 55, the locking portion 51 is driven from the slot by the stopper 55.
  • the 31 is disengaged and is in the unlocked position, and the blade 10 is ejected from the sipe of the shank 30 to open the folding knives.
  • the outer surface of the dial button 52 is provided with anti-slip corrugations.
  • the stop 55 and the toggle button 52 can be integrally formed components (as shown in Figure 2).
  • the one end of the stopper 55 connected to the spring 53 is provided with a groove in which the end of the spring 53 near the blade 10 is located, by using the groove The spring 53 can be prevented from coming off the stopper 55.
  • the stopper 55 further has a cylindrical mounting hole 55a (shown in FIG. 1), and the cylindrical mounting hole 55a is located at the opposite end of the stopper 55 from the groove, the lock The stopper 51 is connected to the stopper 55 by a cylindrical insertion portion 57 that is interference-fitted with the cylindrical mounting hole 55a.
  • the lock switch 50 also has a lock block 54 (shown in FIGS. 1 and 2) adapted to the shape of the lock switch mounting hole 11, a lock portion 51 and a cylindrical plug portion. 57 are respectively located in the lock block 54
  • the inner wall of the lock switch mounting hole 11 is formed with two step surfaces, and the spring 53 and the stopper 55 correspond to the first step surface, and the lock block 54 corresponds to the second step surface. With this step surface, it is possible to play two roles. First, the lock block 54 is prevented from rotating, and only the slide block 54 is prevented from sliding. Second, the respective components of the lock switch 50 are prevented from moving toward the second side of the blade 10 to come out.
  • the folding knife provided by the present invention further includes a elastic piece 20, and the elastic piece 20 is integrally formed with the shank 30.
  • the shank 30 and the elastic piece 20 can be integrally formed from a single steel plate.
  • the first end of the elastic piece 20 is connected to the tail end of the shank 30, the second end of the elastic piece 20 is a free end, and the front end of the shank 30 is further provided with a pin 40 that cooperates with the elastic piece 20.
  • the blade 10 is rotated counterclockwise about the pin shaft 15, and the pin 40 biases the elastic piece 20 to store the elastic piece 20.
  • the toggle button 52 is pushed in the direction of the arrow in Fig. 6, the lock switch 50 can be unlocked.
  • the free end of the elastic piece 20 urges the pin 40 to cause the blade 10 to eject clockwise.
  • the pin 40 is an ordinary cylindrical structure. Since the metal is elastic, it deforms regardless of the direction from which the elastic piece 20 is biased.
  • the elastic piece 20 Since the elastic piece 20 has a certain length along the extending direction of the shank 30, the elastic piece The free end of 20 is capable of producing an elastic deformation perpendicular to the normal direction of the side surface of the elastic piece 20, i.e., elastically deformed in the up and down direction of the shank 30, and cooperates with the pin 40 to realize the energy storage of the elastic piece 20.
  • the folding knife provided by the present invention, the elastic piece 20 and the shank 30 are integrally formed from a steel plate, and the structure is very simple; the structure of the safety lock provided on the blade 10 is very clever and hidden, and the push button 52 is simply pushed. The safety lock can be unlocked, the operation is very convenient, practical and reliable.

Abstract

一种折叠刀,包括:刀刃(10),上部设置有锁止开关安装孔(11);刀柄(30),下部设置有卡槽(31);锁止开关(50),设置于锁止开关安装孔(11)内,并具有位于刀刃的第一侧面的锁止部(51),锁止部(51)具有在刀刃(10)与刀柄(30)扣合时卡装在卡槽(31)内的锁止位置以及在刀刃(10)与刀柄(30)分离时从卡槽(31)内脱离的解锁位置。该折叠刀利用具有锁止部的锁止开关,能够使刀刃折进刀柄之后实现安全的锁止,结构简单,易于实现,提高折叠刀的安全性能。

Description

折叠刀 技术领域 本发明涉及五金刀具领域, 特别地, 涉及一种折叠刀。 背景技术 现有的折叠刀通常不具有安全锁结构或安全锁不方便操作。 另一方面, 折叠刀的弹片助力防回弹结构比较复杂, 不易实现, 而且会增加折叠 刀的成本。 发明内容 本发明目的在于提供一种折叠刀, 以解决现有折叠刀没有安全锁结构或安全锁不 方便操作的技术问题。 为实现上述目的, 本发明提供了一种折叠刀, 包括: 刀刃, 上部设置有锁止开关 安装孔; 刀柄, 下部设置有卡槽; 锁止开关, 设置于锁止开关安装孔内, 并具有位于 刀刃的第一侧面的锁止部, 锁止部具有在刀刃与刀柄扣合时卡装在卡槽内的锁止位置 以及在刀刃与刀柄分离时从卡槽内脱离的解锁位置。 进一步地, 锁止开关安装孔为与刀刃的延伸方向平行的长腰形孔; 锁止开关还具 有: 弹簧, 设置在长腰形孔内, 且弹簧沿长腰形孔的延伸方向设置; 挡块, 位于弹簧 的靠近刀刃的刀尖的一端与长腰形孔的相应的一端的内壁之间, 锁止部与挡块相连。 进一步地, 锁止开关还具有拨动钮, 位于刀刃的第二侧面, 并与挡块相连。 进一步地, 拨动钮的外表面设置有防滑波纹。 进一步地, 挡块与弹簧相连的一端设置有凹槽, 弹簧的靠近刀刃的一端位于凹槽 内。 进一步地, 挡块还具有柱形安装孔, 锁止部通过与柱形安装孔过盈配合的圆柱形 插接部与挡块相连。 进一步地, 锁止开关还具有与锁止开关安装孔的形状相匹配的锁块, 锁止部和圆 柱形插接部分别位于锁块的两侧。 进一步地, 锁止开关安装孔的内壁形成有两级阶梯面, 弹簧和挡块与第一级阶梯 面相对应, 锁块与第二级阶梯面相对应。 进一步地, 本发明提供的折叠刀, 还包括弹片, 该弹片与刀柄一体成型。 进一步地, 弹片的第一端与刀柄的尾端相连, 弹片的第二端为自由端, 刀柄的前 端还设置有与弹片相配合的销钉。 本发明具有以下有益效果: 本发明提供的折叠刀, 利用具有锁止部的锁止开关, 能够使刀刃折进刀柄之后实 现安全的锁止, 结构简单, 易于实现, 提高折叠刀的安全性能。 除了上面所描述的目的、特征和优点之外, 本发明还有其它的目的、特征和优点。 下面将参照图, 对本发明作进一步详细的说明。 附图说明 构成本申请的一部分的附图用来提供对本发明的进一步理解, 本发明的示意性实 施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图中: 图 1是本发明优选实施例的折叠刀的打开状态结构示意图; 图 2是本发明优选实施例的折叠刀的折叠状态的俯视剖面结构示意图; 图 3是本发明优选实施例的折叠刀的锁止部处于锁止位置的结构示意图; 图 4是本发明优选实施例的折叠刀的锁止部处于解锁位置的结构示意图; 图 5是本发明优选实施例的折叠刀的拨动钮的外表面结构示意图; 以及 图 6是本发明优选实施例的折叠刀的弹片与销钉的位置结构示意图。 具体实施方式 以下结合附图对本发明的实施例进行详细说明, 但是本发明可以由权利要求限定 和覆盖的多种不同方式实施。 如图 1和图 2所示, 本发明提供了一种折叠刀, 包括刀刃 10, 上部设置有锁止开 关安装孔 11 ; 刀柄 30, 下部设置有卡槽 31 ; 锁止开关 50, 设置于锁止开关安装孔 11 内, 并具有位于刀刃 10的第一侧面的锁止部 51, 锁止部 51具有在刀刃 10与刀柄 30 扣合时卡装在卡槽 31内的锁止位置以及在刀刃 10与刀柄 30分离时从卡槽 31内脱离 的解锁位置。 本发明提供的折叠刀, 通过在刀刃 10和刀柄 30上的简单改造, 利用安装在刀刃 10上的锁止开关 50实现折叠刀处于折叠状态时的锁止, 结构简单, 易于实现, 而且 附加成本低。 具体地说, 锁止开关安装孔 11为与刀刃 10的延伸方向平行的长腰形孔; 锁止开 关 50还具有弹簧 53和挡块 55, 其中, 弹簧 53设置在长腰形孔内, 且弹簧 53沿长腰 形孔的延伸方向设置;挡块 55位于弹簧 53的靠近刀刃 10的刀尖的一端与长腰形孔的 相应的一端的内壁之间, 锁止部 51与挡块 55相连。 如图 3所示, 刀刃 10折叠到刀柄 30的刀槽内时, 挡块 55受弹簧 53的弹性力的 作用位于长腰形孔内靠近刀尖的一端, 当刀刃 10折叠到刀柄 30的刀槽内时, 锁止部 51处于锁止位置 (如图 3中所示锁止部 51的位置)。 如图 4所示,将刀刃 10从刀柄 30的刀槽内打开时, 需要使锁止部 51从锁止位置 调节到解锁位置 (如图 4中所示的锁止部 51的位置), 为了实现这一动作, 锁止开关 50还具有用于拨动锁止部 51的拨动钮 52, 该拨动钮 52位于刀刃 10的第二侧面, 并 与挡块 55相连。拨动钮 52拨动挡块 55向刀刃 10的根部的方向移动,使弹簧 53压缩, 由于锁止部 51与挡块 55相连,所以在挡块 55的带动下,锁止部 51从卡槽 31中脱离, 处于解锁位置, 刀刃 10从刀柄 30的刀槽内弹出, 使折叠刀处于打开状态。 如图 5所示, 为了提高操作的便利性, 拨动钮 52的外表面设置有防滑波纹。 实际上, 挡块 55与拨动钮 52可以是一体成型的部件 (如图 2所示)。 为了使挡块 55能够可靠地在弹簧 53的作用下移动, 挡块 55与所述弹簧 53相连 的一端设置有凹槽, 弹簧 53的靠近刀刃 10的一端位于该凹槽内, 利用该凹槽, 可以 防止弹簧 53与挡块 55脱离。 为了实现挡块 55与锁止部 51的连接, 挡块 55还具有柱形安装孔 55a (如图 1所 示), 该柱形安装孔 55a位于挡块 55上与凹槽相反的一端, 锁止部 51通过与柱形安装 孔 55a过盈配合的圆柱形插接部 57与挡块 55相连。 为了起到封闭美观的作用, 锁止开关 50还具有与锁止开关安装孔 11的形状相适 应的锁块 54 (如图 1和图 2所示), 锁止部 51和圆柱形插接部 57分别位于锁块 54的
锁止开关安装孔 11的内壁形成有两级阶梯面,弹簧 53和挡块 55与第一级阶梯面 相对应, 锁块 54与第二级阶梯面相对应。 利用该阶梯面, 可以起到两方面的作用, 第 一, 防止锁块 54转动, 只允许其滑动; 第二, 防止锁止开关 50的各个部件向刀刃 10 的第二侧面移动而脱出。 如图 6所示, 本发明提供的折叠刀, 还包括弹片 20, 该弹片 20与刀柄 30—体成 型。 刀柄 30与弹片 20可以由一块钢板一体成型。 弹片 20的第一端与刀柄 30的尾端相连, 弹片 20的第二端为自由端, 刀柄 30的 前端还设置有与弹片 20相配合的销钉 40。 刀刃 10绕销轴 15逆时针旋转闭合, 销钉 40偏压弹片 20, 使弹片 20储能。沿图 6中的箭头方向推动拨动钮 52时, 可以使锁止 开关 50解锁, 此时, 弹片 20的自由端对销钉 40施力, 使刀刃 10顺时针弹出。 实际上, 销钉 40就是普通的圆柱结构, 由于金属是有弹性的, 不管从哪个方向对 弹片 20施力, 它都会产生形变, 由于弹片 20沿刀柄 30的延伸方向具有一定的长度, 那么弹片 20的自由端就能够产生一个与弹片 20的侧面的法向方向垂直的弹性变形, 即沿刀柄 30的上下方向发生弹性变形, 与销钉 40配合实现弹片 20储能。 本发明提供的折叠刀, 弹片 20和刀柄 30是由一块钢板一体成型的, 结构非常简 单; 刀刃 10上设置的安全锁的结构非常巧妙和隐秘, 只需轻轻一推拨动钮 52, 安全 锁就能解锁, 操作非常方便, 实用可靠。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种折叠刀, 其特征在于, 包括:
刀刃 (10), 上部设置有锁止开关安装孔 (11);
刀柄 (30), 下部设置有卡槽 (31);
锁止开关(50), 设置于所述锁止开关安装孔(11) 内, 并具有位于所述刀 刃 (10) 的第一侧面的锁止部 (51), 所述锁止部 (51) 具有在所述刀刃 (10) 与所述刀柄 (30) 扣合时卡装在所述卡槽 (31) 内的锁止位置以及在所述刀刃 (10) 与所述刀柄 (30) 分离时从所述卡槽 (31) 内脱离的解锁位置。
2. 根据权利要求 1所述的折叠刀, 其特征在于,
所述锁止开关安装孔 (11) 为与所述刀刃 (10) 的延伸方向平行的长腰形 孔;
所述锁止开关 (50) 还具有:
弹簧(53), 设置在所述长腰形孔内, 且所述弹簧(53)沿所述长腰形孔的 延伸方向设置;
挡块(55), 位于所述弹簧(53) 的靠近所述刀刃 (10) 的刀尖的一端与所 述长腰形孔的相应的一端的内壁之间, 所述锁止部 (51) 与所述挡块 (55) 相 连。
3. 根据权利要求 2所述的折叠刀, 其特征在于, 所述锁止开关 (50) 还具有拨动 钮 (52), 位于所述刀刃 (10) 的第二侧面, 并与所述挡块 (55) 相连。
4. 根据权利要求 3所述的折叠刀, 其特征在于, 所述拨动钮 (52) 的外表面设置 有防滑波纹。
5. 根据权利要求 3所述的折叠刀, 其特征在于, 所述挡块(55)与所述弹簧(53) 相连的一端设置有凹槽, 所述弹簧 (53) 的靠近所述刀刃 (10) 的一端位于所 述凹槽内。
6. 根据权利要求 5所述的折叠刀, 其特征在于, 所述挡块 (55 ) 还具有柱形安装 孔(55a), 所述锁止部 (51 )通过与所述柱形安装孔(55a)过盈配合的圆柱形 插接部 (57) 与所述挡块 (55 ) 相连。
7. 根据权利要求 6所述的折叠刀, 其特征在于, 所述锁止开关 (50) 还具有与所 述锁止开关安装孔(11 ) 的形状相匹配的锁块(54), 所述锁止部(51 )和所述 圆柱形插接部 (57) 分别位于所述锁块 (54) 的两侧。
8. 根据权利要求 7所述的折叠刀, 其特征在于, 所述锁止开关安装孔 (11 ) 的内 壁形成有两级阶梯面, 所述弹簧 (53 ) 和所述挡块 (55 ) 与第一级阶梯面相对 应, 所述锁块 (54) 与第二级阶梯面相对应。
9. 根据权利要求 1至 8中任一项所述的折叠刀, 其特征在于, 还包括弹片 (20), 所述弹片 (20) 与所述刀柄 (30) —体成型。
10. 根据权利要求 9所述的折叠刀, 其特征在于, 所述弹片 (20) 的第一端与所述 刀柄 (30) 的尾端相连, 所述弹片 (20) 的第二端为自由端, 所述刀柄 (30) 的前端还设置有与所述弹片 (20) 相配合的销钉 (40)。
PCT/CN2012/075515 2011-12-22 2012-05-15 折叠刀 WO2013091340A1 (zh)

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