公开(公告)号：US5095735A

公开(公告)日：1992-03-17

申请号：US577774

申请日：1990-09-05

申请人： Edward J. Schneider, Jr.

发明人： Edward J. Schneider, Jr.

IPC分类号： B21D39/02 ,  B25D17/00

CPC分类号： B21D39/025 ,  B25D17/005 ,  Y10T29/53709

摘要： A guide for removable attachment to a conventional pneumatic hammer adapts the hammer for use as a Pittsburgh lock hammer. The guide includes a hollow, open-ended tubular element which defines a fragmentary cylindrical wall, and an adjustable fastener is attached to the exterior surface of the wall for removably attaching the element to the pneumatic hammer.

摘要翻译： 用于可拆卸地连接到常规气动锤的导轨适用于锤子以用作匹兹堡锁定锤。 引导件包括一个中空的，开口的管状元件，其限定了一个部分圆柱形的壁，并且可调整的紧固件连接到壁的外表面，用于将元件可移除地附接到气动锤。

公开(公告)号：US06131434A

公开(公告)日：2000-10-17

申请号：US342271

申请日：1999-06-29

申请人： Edward J. Schneider, Jr.

发明人： Edward J. Schneider, Jr.

IPC分类号： B21D39/02 ,  B21D31/06

CPC分类号： B21D39/025 ,  B21D39/02 ,  Y10T29/53709

摘要： A tool for folding sheet metal edges includes the following. A pneumatic hammer has a stepped barrel with an externally cylindrical proximal portion and a reduced-down distal portion externally formed with inverse spring thread. A plunger has a shank with a work-striking head, a spaced away butt end that loads into the hammer barrel, and an intermediate axial-stop enlargement disposed therebetween. A spring for retention of the plunger and has a main body formed on a major diameter, a shank-latching portion formed on a minor diameter, and a transition section therebetween. The main body has a series of closed regular coils which partly thread onto the inverse spring thread of hammer barrel and in other part which, with inclusion of the transition section, generally project so that the shank-latching portion latches across the shank of the plunger just forward of the axial stop. That way, axial extensions of the spring normally retract the plunger back into the hammer barrel. A rigid guide has a base end with a clamping mechanism for clamping onto the hammer barrel's proximal portion. At the other end, it has a guide lip which, while the guide is attached to the hammer, projects past and below the striking head of the plunger. It also has an intermediary channel portion which internally closely surrounds portions of the spring for buttressing the transition section of the spring, and those coils of the main body proximate thereto, from off-axis excursions.

摘要翻译： 用于折叠金属片边缘的工具包括以下。 气锤具有带有外圆柱形近端部分的台阶式圆筒，外径形成有反向弹簧螺纹的减小的远端部分。 柱塞具有带有工作打击头的柄，间隔开的对接端装载到锤筒中，并且在它们之间设置中间的轴向停止放大。 一种弹簧，用于保持柱塞并具有形成在大直径上的主体，形成在小直径上的柄闩锁部分和它们之间的过渡部分。 主体具有一系列闭合的正常线圈，其部分地连接到锤筒的反向弹簧线上，并且在其它部分中，包括过渡部分通常突出，使得柄闩锁部分锁定在柱塞的柄部 只是向前的轴向停止。 这样，弹簧的轴向延伸部通常将柱塞缩回到锤筒内。 刚性引导件具有一个带有夹紧机构的基端，用于夹紧在锤筒的近端部分上。 在另一端，它具有导向唇缘，该引导唇缘在引导件附接到锤子的同时突出在柱塞的打击头部之上和之下。 它还具有中间通道部分，其内部紧密地围绕弹簧的部分，用于从偏轴偏移来支撑弹簧的过渡部分以及靠近其的主体的那些线圈。