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公开(公告)号：US4474269A
公开(公告)日：1984-10-02
申请号：US384197
申请日：1982-06-03
Applicant: Reiner Kloberg , Klaus Hoppner , Anton Wehle
Inventor： Reiner Kloberg , Klaus Hoppner , Anton Wehle
CPC classification number: F16D49/08 , B27B17/083
Abstract: The invention is directed to a power chain saw incorporating a braking device having a release handle. The chain saw includes a carrying handle spaced a distance from the release handle. At least one of the handles is made of a plastically deformable material and can be deformed so as to cause the spacing between the handles to be adjusted within predetermined limits.
Abstract translation: 本发明涉及一种包含具有释放手柄的制动装置的动力链锯。 链锯包括与释放手柄间隔开距离的承载手柄。 手柄中的至少一个由塑性变形的材料制成，并且可以变形，以便使手柄之间的间距被调节到预定的限度内。
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公开(公告)号：US4420885A
公开(公告)日：1983-12-20
申请号：US368514
申请日：1982-04-15
Applicant: Giuseppe Todero
Inventor： Giuseppe Todero
CPC classification number: F16D49/08 , B27B17/083
Abstract: A portable power tool includes a manually actuable safety lever and an inertial safety system for activating a brake of the tool to provide a more effective safety arrangement. A first spring applies the brake when the safety lever contacts the hand, wrist or arm of an operator during "kick-back" or like violent movement of the tool. A second spring is operable independently of the safety lever for also releasing the first spring. An inertia mass is displaceable effectively independently of the safety lever when the brake is in the inoperative condition. This inertia mass releases the second spring, so releasing the first spring and applying the brake, upon occurrence of "kick-back" or the like. Preferably, the second spring operates a hammer release mechanism for striking a locking lever releasably retaining the safety lever. A band brake of a chain saw or circular saw may particularly be operated in this manner.
Abstract translation: 便携式电动工具包括可手动致动的安全杆和用于启动工具的制动器以提供更有效的安全布置的惯性安全系统。 当安全杆在“反冲”期间或操作者的剧烈运动时，安全杆接触到操作者的手，手腕或手臂时，第一弹簧施加制动。 第二弹簧可独立于安全杆操作，以释放第一弹簧。 当制动器处于不工作状态时，惯性质量可以有效地与安全杆无关地移动。 该惯性质量释放第二弹簧，因此在发生“反冲”等时释放第一弹簧并施加制动器。 优选地，第二弹簧操作锤击释放机构，用于打开可释放地保持安全杆的锁定杆。 链锯或圆锯的带式制动器可以特别地以这种方式操作。
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公开(公告)号：US4204444A
公开(公告)日：1980-05-27
申请号：US8380
申请日：1979-02-01
Applicant: John M. Kohr
Inventor： John M. Kohr
CPC classification number: B27G19/06 , B26D7/22 , Y10T83/0605 , Y10T83/7226 , Y10T83/872
Abstract: A protective device for a band saw machine is secured to the guards which are normally found on such machines. The device extends downwardly from the guards to the plane of the table, on which the blocks to be cut are placed. The device encloses the band saw and prevents inadvertent contact therewith. The device comprises two members, a fixed member secured to the guard and a movable member secured to the fixed member. The movable member is locked to the fixed member. When a block contacts the device the movable member is released until the block has been cut. The movable member returns to the locked position after the block has been cut.
Abstract translation: 用于带锯机的保护装置固定在通常在这种机器上发现的防护装置上。 该装置从防护件向下延伸到桌子的平面，待切割的块被放置在其上。 该装置围绕带锯并防止与其无意接触。 该装置包括两个构件，固定到防护件的固定构件和固定到固定构件的可动构件。 可动构件被锁定到固定构件。 当块接触装置时，可移动构件被释放直到块被切割。 在块被切割之后，可移动部件返回到锁定位置。
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公开(公告)号：US4121339A
公开(公告)日：1978-10-24
申请号：US823339
申请日：1977-08-10
Applicant: Milovan Nikolich
Inventor： Milovan Nikolich
CPC classification number: B27B17/083
Abstract: A guard member is mounted on the chain saw for swinging movement between an actuate position and a reset position. The guard member occupies a normal position between the actuate and reset positions. A brake band is integral with a bowed column spring which applies the braking force to arrest movement of the cutting chain. A latching mechanism includes an arm with a latch pin engaged by a yieldable latch finger; this latch finger is integral with the bowed column spring. The guard member deflects the latch finger in response to movement of the guard to its actuate position; this action allows the column spring to apply the brake. The guard member is moved to its actuate position in response to a sudden movement of the chain saw, as in the case of "kickback"; this movement of the guard member is brought about by inertia or the engagement of the guard with the operator's body (most likely the wrist or the back of his hand) during this abrupt movement of the chain saw. Manual swinging of the guard to its reset position deactivates the brake and re-establishes the latch.
Abstract translation: 防护件安装在链锯上，用于在致动位置和复位位置之间摆动。 保护构件在致动和复位位置之间占据正常位置。 制动带与弓形弹簧成一体，该弹簧应用制动力来阻止切割链的运动。 闩锁机构包括具有由可屈曲闩锁指状物接合的闩锁销的臂; 这个手指与弓形柱弹簧是一体的。 防护构件响应于防护件移动到其致动位置而偏转闩锁指状物; 该动作允许柱簧弹簧施加制动。 如“回扣”一样，防护件响应于链锯的突然移动而移动到其致动位置; 防护构件的这种运动是由于在链锯的这种突然移动期间的惯性或护罩与操作者的身体（最可能的是手腕或其背部）的接合而引起的。 将防护装置手动摆动到其复位位置，将禁止制动并重新建立闩锁。
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35.发明授权
公开(公告)号：US3974566A
公开(公告)日：1976-08-17
申请号：US611143
申请日：1975-09-08
Applicant: Edward J. Pilatowicz
Inventor： Edward J. Pilatowicz
CPC classification number: F16D49/08 , B27B17/083 , F16D59/00 , F16D2121/12
Abstract: Method and apparatus for arresting the movement of a chain saw cutter chain wherein control energy is developed by the chain saw engine, stored, and used to disable a chain saw brake mechanism.Method and apparatus for arresting the movement of a chain saw cutter chain wherein an inertia device, independent of chain saw operator manipulation, serves to actuate the release of chain saw engine developed and stored energy, with the energy release functioning to actuate a chain saw brake.Method and apparatus for arresting the movement of a chain saw cutter chain wherein a pressurized body of fluid is generated by chain saw operation and is employed to actuate a chain saw brake.
Abstract translation: 用于阻止链锯切割链的运动的方法和装置，其中控制能量由链锯发动机展开，存储并用于禁用链锯制动机构。
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Patent Agency Ranking
公开(公告)号：US3964333A
公开(公告)日：1976-06-22
申请号：US515047
申请日：1974-10-15
Applicant: Sidney Hirschkoff
Inventor： Sidney Hirschkoff
CPC classification number: B27B17/083
Abstract: A portable chain saw includes a flexible brake band for stopping the cutter chain. A sensing arm is engageable by an arm or hand of an operator to be swung forwardly to tighten the brake band. The sensing arm is continuously biased forwardly to a braking position by a power torsion spring. The same torsion spring also serves to normally hold the sensing arm in a rest position. A latch can be utilized to transmit latching forces from the torsion spring to the sensing arm. Alternatively, the torsion spring itself can serve as a latch to resist forward movement of the sensing arm. The torsion spring is yieldable to enable the sensing arm to be unlatched in response to being struck by the arm or hand of an operator and then swung forwardly by the torsion spring.
Abstract translation: 便携式链锯包括用于停止切割链的柔性制动带。 感测臂可由操作者的手臂或手接合以向前摆动以收紧制动带。 感应臂通过动力扭力弹簧向前连续地向制动位置偏压。 相同的扭转弹簧还用于将感测臂正常地保持在静止位置。 可以使用闩锁将锁定力从扭转弹簧传递到感测臂。 或者，扭转弹簧本身可以用作闩锁以阻止感测臂的向前运动。 扭转弹簧是可屈服的，以使得能够响应于由操作者的手臂或手触发的感测臂而被解锁，然后由扭转弹簧向前摆动。
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公开(公告)号：US3888148A
公开(公告)日：1975-06-10
申请号：US39745073
申请日：1973-09-14
Applicant: WEISSMAN BERNARD
Inventor： WEISSMAN BERNARD
CPC classification number: B27G19/06 , Y10T83/207 , Y10T83/606 , Y10T83/7226 , Y10T83/7734 , Y10T83/96
Abstract: A saw blade guard is movable between an upper housing and a generally horizontal work support table disposed below and spaced from the housing. An unconfined portion of a blade is disposed between the housing and work table, the blade guard forming a barrier between the unconfined blade portion and an operator. The guard is in the form of a channel-shaped member disposed in confronting relation and spaced from the blade to present a barrier between the blade and the operator. The upper portion of the channel member is slidably mounted for vertical movement. The guard member is fully extended in full guard position when the member extends from the housing to a position adjacent the work table and may be manually raised to any desired degree of elevation along the otherwise exposed edge of the blade to thereby provide access to a selected portion thereof for operation on a work piece. A solenoid, mounted on the housing is connected to an engaging slide member which controllably engages a toothed rack mounted lengthwise on the guard member. The engaging slide member, controlled by the solenoid, engages the toothed rack to maintain the guard member at a selected vertical position above the work table when the saw is in operation and releases the guard member and permits the same to drop to the level of the work table under the action of gravity to substantially enclose the blade when the saw is not in operation.
Abstract translation: 锯片防护罩可在上壳体和设置在壳体下方并与壳体间隔开的大致水平的工作支撑台之间移动。 叶片的无约束部分设置在壳体和工作台之间，叶片防护件在无侧限叶片部分和操作者之间形成屏障。 防护装置是以相对关系设置并与叶片间隔开的通道形构件的形式，以在叶片和操作者之间形成屏障。 通道构件的上部可滑动地安装用于垂直运动。 当构件从壳体延伸到与工作台相邻的位置时，防护构件完全延伸到完全防护位置，并且可以沿着叶片的另外暴露的边缘手动地升高到任何期望的高度，从而提供对所选择的 其部分用于在工件上操作。 安装在壳体上的螺线管连接到接合滑动构件，其可控制地接合纵向安装在防护构件上的齿条。 由螺线管控制的接合滑动构件接合齿条，以在锯操作时将防护构件保持在工作台上方选定的垂直位置，并释放防护构件并允许其降低到工作台的水平 在重力作用下，工作台在锯不工作时基本上包围叶片。
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公开(公告)号：US3848502A
公开(公告)日：1974-11-19
申请号：US41335673
申请日：1973-11-05
Applicant: NEILL E O
Inventor： O NEILL E
CPC classification number: F16P3/00 , B27G19/06 , Y10T83/525 , Y10T83/7226 , Y10T83/732 , Y10T83/872 , Y10T83/96
Abstract: A safety device for protecting an operator''s hands from the cutting edge of the blade of a band saw characterized by a shield disposed in a protective relationship with the blade and supported for rectilinear reciprocation along a path paralleling the plane of the blade, a double-acting pneumatic cylinder for imparting rectilinear motion to the shield, and a feeler disposed in juxtaposition with the shield and connected therewith for initiating operation of the cylinder in response to an engagement therewith of a selected workpiece as the workpiece is advanced toward the blade.
Abstract translation: 一种用于保护操作者的手从带锯的刀片的切割边缘的安全装置，其特征在于与所述刀片保护关系设置的护罩，并且被支撑为沿着与所述刀片的平面平行的路径的直线往复运动，双作用 用于向屏蔽件施加直线运动的气缸，以及与屏蔽件并列设置并与之连接的触针，用于当工件朝向叶片前进时响应于与所选择的工件的接合而启动气缸的操作。
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公开(公告)号：US3739475A
公开(公告)日：1973-06-19
申请号：US3739475D
申请日：1971-10-19
Applicant: MC CULLOCH CORP
Inventor： MOORE H
CPC classification number: B27G19/00 , B27B17/083
Abstract: A method and apparatus for preventing injury to the hand of an operator working with a chain saw, of the type having a frame with a frame handle and a control handle, a guide rail or more conventionally termed a ''''guide bar,'''' a cutting chain and power means mounted on the frame and operably connected to the cutting chain for driving the cutting chain on the guide rail. The apparatus includes a bail handle actuation system which performs the dual function of blocking movement of the operator''s hand toward the cutting chain and actuating a brake to immediately stop movement of the chain. The brake is self-locking and upon actuation jams to instantly stop movement of the chain and stall out the chain saw power means. The method includes the steps of blocking movement of the operator''s hand toward the cutting chain, actuating a selflocking brake and braking the cutting chain to an immediate stop.
Abstract translation: 一种用于防止对使用链锯操作的操作者的手的伤害的方法和装置，其具有带框架手柄和控制手柄的框架，导轨或更常规地称为“导杆”的切割链 以及安装在框架上并可操作地连接到切割链上以驱动导轨上的切割链的动力装置。
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公开(公告)号：US2827085A
公开(公告)日：1958-03-18
申请号：US37536853
申请日：1953-08-20
Applicant: ROCKWELL MFG CO
Inventor： FERDINAND OCENASEK WILLIAM
CPC classification number: B27B13/00 , B23D55/082 , B27G19/06 , Y10T83/7201 , Y10T83/7226 , Y10T83/872 , Y10T83/8762 , Y10T83/8887 , Y10T83/8889
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