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1. 发明授权

US4551917A Knife with locking folding blade 失效
标题翻译：带锁定折叠刀的刀
公开(公告)号：US4551917A
公开(公告)日：1985-11-12
申请号：US665739
申请日：1984-10-29
申请人： Michael L. Walker
发明人： Michael L. Walker
IPC分类号： B26B1/04
CPC分类号： B26B1/046
摘要： A knife which has generally a blade and a handle wherein the blade folds into the handle; and wherein the handle has a first parallel plate and a second parallel plate which are secured to each other and spaced from each other by a spacer bushing and a fixed bushing to form therein a pocket into which the blade folds as it rotates around the fixed bushing. The fixed bushing has therein a slide hole into which the stem of a lock inserts. A biasing spring is installed in a bore in the stem and bears against a shoulder inside the stem and against a spring plate affixed to the outside of the first parallel plate, thereby biasing the stem and the lock through the second parallel plate. A button on the outside of the second parallel plate passes through a button hole therein, and the button is affixed to the end of the stem. The lock has a lock pin which protrudes through the first parallel plate and engages one of a plurality of lock pin holes in the blade securing the blade in the desired position. To release the blade, the button is pressed, thereby disengaging the lock pin from the lock pinhole and allowing the blade to be repositioned and again locked in the new desired position.
摘要翻译：具有通常具有刀片和手柄的刀，其中所述刀片折叠到所述手柄中; 并且其中所述手柄具有第一平行板和第二平行板，所述第一平行板和第二平行板彼此固定并且通过间隔套筒和固定衬套彼此间隔开，以在其中形成凹口，当所述刀片围绕所述固定衬套旋转时折叠。固定衬套具有滑动孔，锁的杆插入该滑动孔中。偏置弹簧安装在杆的孔中并且抵靠杆内的肩部并抵靠固定到第一平行板的外侧的弹簧板，从而通过第二平行板偏压杆和锁。第二平行板的外侧的按钮通过其中的按钮孔，并且按钮固定在杆的端部。该锁具有一个锁定销，该锁定销突出穿过第一平行板，并接合刀片中的多个锁定销孔中的一个将刀片固定在所需位置。为了释放刀片，按下按钮，从而将锁定销与锁定针孔分离，并允许刀片重新定位并再次锁定在新的期望位置。

2. 发明授权

US4896424A Composite cutting blade and method of making the blade 失效
标题翻译：复合切割刀片及其制作方法
公开(公告)号：US4896424A
公开(公告)日：1990-01-30
申请号：US299549
申请日：1989-01-13
申请人： Michael L. Walker
发明人： Michael L. Walker
IPC分类号： B26B1/04 , B26B9/00
CPC分类号： B26B1/044 , B26B1/046 , B26B9/00
摘要： A new composite cutting blade for a knife or other cutting instrument and a novel method of making the blade. The blade is formed from a body section made of a strong tough material formed with a dovetail configuration along one edge thereof and a cutting edge section made of a hard durable material that has a matching dovetail configuraion along one edge. The body and cutting edge sections are joined by press fitting the two dovetail edges together and then peening the joint. The blade is provided with a recess so that when the blade is rotated into the handle that includes a unique locking means, the blade is retained in a closed position. The handle includes a liner that has a spring finger which engages the tang of the blade to lock the blade in an open position. The spring finger also has a ball detent mounted thereon that engages the recess in the blade when the blade is in a closed position so as to retain the blade in a tightly closed position.
摘要翻译：用于刀或其他切割仪器的新型复合切割刀片和制造刀片的新颖方法。刀片是由一个坚固材料构成的主体部分，该主体部分沿其一个边缘形成有一个燕尾形结构，而一个硬质耐用材料制成的切割边缘部分沿着一个边缘具有匹配的燕尾形结构。主体和切割边缘部分通过将两个燕尾边压合在一起并且然后对接头进行喷丸来连接。叶片设置有凹部，使得当叶片旋转到包括独特锁定装置的手柄中时，叶片保持在关闭位置。手柄包括具有弹簧手指的衬垫，该弹簧指接合刀片的柄脚以将刀片锁定在打开位置。当刀片处于关闭位置时，弹簧手指还具有安装在其上的球形止动件，其接合刀片中的凹部，以将刀片保持在紧密关闭的位置。

3. 发明授权

US4979301A Locking mechanism for folding blade knife 失效
标题翻译：折刀刀的锁定机构
公开(公告)号：US4979301A
公开(公告)日：1990-12-25
申请号：US495893
申请日：1990-03-19
申请人： Michael L. Walker
发明人： Michael L. Walker
IPC分类号： B26B1/04
CPC分类号： B26B1/046
摘要： A folding blade knife constructed so that the knife blade can be opened or closed with one hand. The knife includes a handle composed of two side members that are assembled in a spaced relation to provide space for a blade. A blade is pivotally mounted in one end of the handle for movement to an open or closed position. The blade has an elongated slot cut therein and the slot is located in the end of the blade mounted in the handle. A locking lever is pivotally mounted in the elongated slot in the blade. The lever has a release button formed on one end and a locking button formed on the other end. A pair of locking recesses are formed in the interior surface of one of the handle sides members. These recesses are located adjacent to the end of the handle where the blade is mounted. The elongated slot in the blade, and thus the locking lever, are positioned so that the locking button of the locking lever will engage the locking recesses in the handle. The release button on the other end of the lever can be depressed manually to move the locking button out of the locking recesses. A portion of the elongated slot is a through slot that is enclosed in the handle and it receives the locking button portion of the locking lever. The remainder of the slot is a blind slot whose end is located outside the handle and it receives the release button of the locking lever. When the release button is pressed the lever is pivoted and the locking button is moved out of the locking recesses in the handle. A coil spring is positioned between the release button end of the lever and the bottom of the blind slot to bias the locking button of the lever into the locking recesses in the handle.
摘要翻译：折叠刀片刀构造成使得刀片可以用一只手打开或关闭。刀包括由两个侧部构件组成的手柄，这两个侧部构件以间隔的关系组装以提供用于叶片的空间。刀片可枢转地安装在手柄的一端以移动到打开或关闭位置。刀片具有在其中切割的细长槽，并且槽位于安装在手柄中的刀片的端部中。锁定杆枢转地安装在刀片中的细长槽中。杠杆具有形成在一端的释放按钮和形成在另一端的锁定按钮。在一个手柄侧构件的内表面上形成一对锁定凹部。这些凹槽位于与安装刀片的手柄的端部相邻处。刀片中的细长槽，因此锁定杆被定位成使得锁定杆的锁定按钮将与手柄中的锁定凹槽接合。手柄另一端的释放按钮可以手动按压，以将锁定按钮从锁定凹槽中移出。细长槽的一部分是封闭在手柄中的通孔，并且其接收锁定杆的锁定按钮部分。槽的其余部分是盲槽，其端部位于手柄外部并且其接收锁定杆的释放按钮。当按下释放按钮时，杠杆枢转，并且锁定按钮从手柄中的锁定凹槽中移出。螺旋弹簧位于杠杆的释放按钮端和盲槽的底部之间，以将杠杆的锁定按钮偏压到手柄中的锁定凹槽中。

4. 发明授权

US5596808A Safety for knife-blade lock 失效
标题翻译：刀片锁的安全
公开(公告)号：US5596808A
公开(公告)日：1997-01-28
申请号：US496842
申请日：1995-06-28
申请人： Ronald W. Lake , Michael L. Walker
发明人： Ronald W. Lake , Michael L. Walker
IPC分类号： B26B1/04
CPC分类号： B26B1/044 , B26B1/048
摘要： A knife has a folding blade, a blade lock in the form of a leaf spring, and a safety for preventing unlocking of the lock. One form of safety has a carrier in the form of an elongate arm mounted on the knife handle. A stud is positioned on an inside surface of one end of the arm. A contact surface is formed on an outside surface of the arm opposite from the stud. The other end of the arm is pivotably attached to the handle of the knife. The arm may be swung from a release position, unobstructive of the lock, to a safety position in which the presence of the stud prevents unlocking the lock. The carrier may be spring biased toward the release position, and may have limited travel away from the handle to the release position. The carrier may also be a slide or a rotating disk.
摘要翻译：刀具有折叠刀片，片簧形式的刀片锁和用于防止锁解锁的安全性。一种安全形式具有安装在刀柄上的细长臂形式的托架。螺柱位于臂的一端的内表面上。接触表面形成在与螺栓相对的臂的外表面上。臂的另一端可枢转地附接到刀的手柄。臂可以从释放位置摆动，不受阻碍地锁定到安全位置，在该安全位置，螺柱的存在防止锁定解锁。载体可以被弹簧偏压到释放位置，并且可以具有从手柄到释放位置的有限行程。载体也可以是滑块或旋转盘。

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