公开(公告)号：US20110120280A1

公开(公告)日：2011-05-26

申请号：US12947165

申请日：2010-11-16

Applicant: David A. Szymanski

Inventor： David A. Szymanski

IPC: B23D57/02 ,  B26D1/46 ,  B27B33/14 ,  F16B19/04

CPC classification number: B27B33/144 ,  B23D61/06 ,  Y10T83/04 ,  Y10T83/913 ,  Y10T83/921 ,  Y10T83/925 ,  Y10T83/9319 ,  Y10T83/9329 ,  Y10T83/9336 ,  Y10T83/9338

Abstract: An anti-kickback saw chain including a plurality of links each having an upstream end and a downstream end relative to a direction of travel of the chain is provided. The anti-kickback saw chain comprises a holding link having a first side and a second side, a replaceable tooth adapted to be removably mounted on the downstream end of the holding link, and a safety drive link. The upstream end of the safety drive link is pivotally connected to the downstream end of the first side of the holding link. The safety drive link includes a safety lobe effective to prevent the tooth from being dislodged from the holding link during chain travel, and a substantially flat upper edge.

Abstract translation: 提供了一种包括多个链节的防反冲锯链，每个链条相对于链条的行进方向具有上游端和下游端。 防反冲锯链包括具有第一侧和第二侧的保持连接件，适于可拆卸地安装在保持连杆的下游端的可更换齿和安全驱动连杆。 安全驱动连杆的上游端枢转地连接到保持连杆的第一侧的下游端。 安全传动连杆包括有效地防止齿在链条行进期间从保持连杆移出的安全凸角和基本平坦的上边缘。

公开(公告)号：US07836808B2

公开(公告)日：2010-11-23

申请号：US11337294

申请日：2006-01-23

Applicant: David A. Szymanski

Inventor： David A. Szymanski

IPC: B26D1/46 ,  B27B33/02 ,  B27B33/14 ,  B27B33/12 ,  B23D57/00

CPC classification number: B27B33/144 ,  B23D61/06 ,  Y10T83/04 ,  Y10T83/913 ,  Y10T83/921 ,  Y10T83/925 ,  Y10T83/9319 ,  Y10T83/9329 ,  Y10T83/9336 ,  Y10T83/9338

Abstract: Safety chain and rotatable devices, used on saws or other machines for cutting or abrading material, include a plurality of holding members on which replaceable teeth are retained. Safety lobes prevent the teeth from being dislodged during operation of the saw. The safety lobes may be disposed on a link located in front of the holding member or disposed on a link located in back of the holding member, or both. The teeth can include sharp edges adapted for cutting various materials including wood, plastic and metal and can be formed with abrasive surfaces for abrading materials including brick and concrete. The teeth are quickly removable from the saw without the need for fasteners. While the teeth may be retained by engagement between the teeth and holding member, the chain and rotatable devices may retain the teeth on the holding members using only the safety lobes or safety surfaces. The rotational device can include two blades each including holding members and safety lobes. The blades are positioned and fixed to each other effective to enable the safety lobes of one blade to prevent dislodging the of the teeth of the other blade. The chain and blades can include depth gauges or rakers. Saws or cutting or abrading machines are operated while preventing dislodging of the replaceable teeth. When the device is operated to stop movement of the chain or blades, damaged or worn teeth can be quickly replaced with new or replacement teeth.

Abstract translation: 用于切割或研磨材料的锯或其他机器上的安全链和可旋转装置包括多个保持构件，保持可更换的齿。 安全瓣可防止锯在锯的操作过程中脱落。 安全凸缘可以设置在位于保持构件前面的连杆上，或者设置在位于保持构件背面的连杆上，或者两者。 齿可以包括适于切割包括木材，塑料和金属在内的各种材料的锋利边缘，并且可以形成用于研磨材料（包括砖和混凝土）的研磨表面。 牙齿可以快速地从锯上移除，而不需要紧固件。 虽然齿可以通过齿和保持构件之间的接合来保持，但是链条和可旋转装置可以仅使用安全凸角或安全表面将齿保持在保持构件上。 旋转装置可以包括两个叶片，每个叶片包括保持构件和安全瓣。 叶片彼此定位和固定有效，以使得一个叶片的安全瓣能够防止另一个叶片的齿移动。 链条和叶片可以包括深度计或耙子。 操作锯或切割或研磨机，同时防止可更换牙齿的移动。 当设备操作以停止链条或刀片的运动时，损坏或磨损的牙齿可以用新的或更换的牙齿快速更换。

公开(公告)号：US20070169605A1

公开(公告)日：2007-07-26

申请号：US11506312

申请日：2006-08-19

Applicant: David A. Szymanski

Inventor： David A. Szymanski

IPC: B27B33/14

CPC classification number: B23D61/06 ,  B27B33/144 ,  Y10T83/909 ,  Y10T83/925

Abstract: Safety chain and rotatable devices for saws include a plurality of base members on which sharp members are retained. The sharp members include sintered particulate material such as tungsten carbide, which has high particle hardness. The base members are formable from sintered particulate material. The sharp members to be formed by powder metal molding, metal injection molding or investment casting to provide the protrusion and recess with a final net shape. The cutting member is one, two or more pieces, and is permanently bonded to or removably disposed on the base member. Bonding material or fasteners can connect the cutting member to the base or a tip to an insert body; bonding material includes cement, solder, braze and polymer. Safety lobes prevent the teeth from being dislodged. Devices include dado blade, planer blade and bandsaw blade, chain saw, buck saw, rescue saw, automated wood cutting apparatus, circular saw, saw blade, knife, scissors, shears, grass cutter, weed cutter, grass cutting blade and weed cutting blade.

Abstract translation: 用于锯的安全链和可旋转装置包括多个基部构件，其上保持有尖锐构件。 锋利的构件包括具有高颗粒硬度的烧结颗粒材料如碳化钨。 基底构件可由烧结颗粒材料形成。 通过粉末金属成型，金属注射成型或熔模铸造形成的尖锐构件，以提供具有最终网状的突起和凹部。 切割构件是一个，两个或更多个件，并且永久地结合到或可移除地设置在基座构件上。 接合材料或紧固件可将切割构件连接到基座或尖端到插入体; 接合材料包括水泥，焊料，钎焊和聚合物。 安全瓣防止牙齿脱落。 设备包括dado刀片，刨刀刀片和带锯刀片，链锯，锯锯，救援锯，自动木材切割设备，圆锯，锯片，刀，剪刀，剪刀，草刀，杂草切割机，草切刀片和杂草切割刀片 。

公开(公告)号：US10773413B2

公开(公告)日：2020-09-15

申请号：US14941054

申请日：2015-11-13

Applicant: David A. Szymanski

Inventor： David A. Szymanski

IPC: B27B33/14 ,  B27B17/00

Abstract: A saw chain includes a tie strap adapted to be pivotally connected to other links of the saw chain. The tie strap features an interior hole with a chamfered edge. An interior counterbore in the interior hole receives a barrel portion of a rivet. The rivet has two flanges extending from both sides of the barrel, each with a smaller diameter than the barrel, and each with chamfered corners in a transition area where the flanges meet the barrel. An exterior counterbore on an exterior surface of the tie strap receives a rivet head formed from one of the flanges, such that an exterior surface of the rivet head sits flush with the exterior surface of the tie strap.

公开(公告)号：US20160136837A1

公开(公告)日：2016-05-19

申请号：US14941054

申请日：2015-11-13

Applicant: David A. Szymanski

Inventor： David A. Szymanski

IPC: B27B33/14 ,  B27B17/00

CPC classification number: B27B33/14 ,  B27B17/00

Abstract: A saw chain includes a tie strap adapted to be pivotally connected to other links of the saw chain. The tie strap features an interior hole with a chamfered edge. An interior counterbore in the interior hole receives a barrel portion of a rivet. The rivet has two flanges extending from both sides of the barrel, each with a smaller diameter than the barrel, and each with chamfered corners in a transition area where the flanges meet the barrel. An exterior counterbore on an exterior surface of the tie strap receives a rivet head formed from one of the flanges, such that an exterior surface of the rivet head sits flush with the exterior surface of the tie strap.

Abstract translation: 锯链包括适于枢转地连接到锯链的其它链节的连接带。 领带具有带倒角边缘的内孔。 内孔中的内部沉孔容纳铆钉的筒部。 铆钉具有从筒体的两侧延伸的两个凸缘，每个凸缘的直径小于筒体直径，并且每个凸缘在法兰与筒体相交的过渡区域中都有倒角。 连接带的外表面上的外部沉孔容纳由一个凸缘形成的铆钉头，使得铆钉头的外表面与连接带的外表面齐平。