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公开(公告)号：US4953295A
公开(公告)日：1990-09-04
申请号：US479490
申请日：1990-02-02
Applicant: Scott Barradas , Bruce Farber , William B. Luther
Inventor： Scott Barradas , Bruce Farber , William B. Luther
CPC classification number: B23D55/10 , B23D53/12 , B23D55/06 , B23D57/0084 , B27G19/06 , Y10T83/7239
Abstract: A seawater powered band saw having a rigid frame or housing, a control handle and valve assembly having a trigger which when engaged by an operator delivers pressurized seawater to a seawater powered vane motor, a novel seawater lubricated spur and pinion gear drive arrangment connecting the vane motor in a driving relationship to a band saw drive wheel, an idler take-up assembly to tension the saw blade and facilitate the changing of saw blades and a safety guard assembly to protect the blade when the band saw is non-operational and protect the operator when the band saw is operational.
Abstract translation: 具有刚性框架或壳体的海水动力带锯，控制手柄和阀组件，其具有触发器，当操作者接合操作者将加压海水输送到海水动力叶片马达时，新颖的海水润滑的正齿轮和小齿轮驱动装置将叶片 电动机与带锯驱动轮的驱动关系，一个惰轮卷取组件，用于张紧锯片，并且便于锯片的更换和安全保护组件，以在带锯不可操作时保护刀片，并保护 当带锯操作时，操作员。
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82.发明授权
公开(公告)号：US4949818A
公开(公告)日：1990-08-21
申请号：US301602
申请日：1989-01-26
Applicant: Reinhard Siede
Inventor： Reinhard Siede
IPC: B27G19/06 , B23D57/02 , B27B17/08 , C23C4/10 , F16D65/04 , F16D65/06 , F16D69/00 , F16D69/02 , F16D69/04
CPC classification number: F16D69/027 , B27B17/083 , C23C4/10 , F16D65/04 , F16D69/04 , F16D2069/0458
Abstract: The invention is directed to a brake band for bringing the saw chain of a chain saw to standstill. Chain saws include safety devices which bring the saw chain to standstill by applying a brake band to a brake drum. These safety devices effect numerous applications of the brake band to the brake drum so that the brake drum wears rapidly and has only a short service life. The brake band of the invention has a friction side which is provided with a layer made of an oxide ceramic which increases the service life for very short braking times even when oil penetrates the region between the brake band and the brake drum.
Abstract translation: 本发明涉及一种用于使链锯的锯链停止的制动带。 链锯包括通过将制动带施加到制动鼓而使锯链停止的安全装置。 这些安全装置将制动带的许多应用应用于制动鼓，使制动鼓磨损迅速，使用寿命短。 本发明的制动带具有摩擦面，其具有由氧化物陶瓷制成的层，即使当油穿过制动带和制动鼓之间的区域时，其制动时间也非常短。
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公开(公告)号：US4716654A
公开(公告)日：1988-01-05
申请号：US913664
申请日：1986-09-24
Applicant: Kenneth Wallmark
Inventor： Kenneth Wallmark
CPC classification number: B27B17/083
Abstract: A device for braking the saw chain (3) of a portable power saw (1). The power saw has a front handle (5) to be gripped by one hand (6) of the saw operator, and a rear handle (7) to be gripped by the operator's other hand (8). The device includes a brake means (11) capable of braking the saw chain (3) by means of an actuating member (12). This may have the shape of an L-shaped tube (12) which is connected to a kickback guard (9)on the power saw, and which can be operated by the operator's rear hand as a result of a coercion wrenching movement of the rear hand (8) if any kickback of the power saw will occur.
Abstract translation: PCT No.PCT / SE85 / 00460 Sec。 371日期：1986年9月24日 102（e）1986年9月24日PCT PCT公布1985年11月18日PCT公布。 出版物WO86 / 04294 日期1986年7月31日。一种用于制动便携式动力锯（1）的锯链（3）的装置。 动力锯具有由手柄（6）夹持的前把手（5）和由操作者的另一只手（8）夹紧的后把手（7）。 该装置包括能够通过致动构件（12）制动锯链（3）的制动装置（11）。 这可以具有L形管（12）的形状，其连接到动力锯上的反冲防护件（9），并且由于后部的强制扭转运动，操作者的后手能够操作 手（8）如果发生电锯的任何反冲。
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公开(公告)号：US4683660A
公开(公告)日：1987-08-04
申请号：US764221
申请日：1985-08-09
Applicant: Volker Schurr
Inventor： Volker Schurr
CPC classification number: F16D49/08 , B27B17/083 , Y10S83/01
Abstract: A braking arrangement for a motor-driven chain saw is disclosed. The braking arrangement is actuable by a releasing device and is held in the release position against a spring force by means of a latching device. The braking arrangement includes a brake band holding member to which a brake band is fastened. The brake band can be tightened around a clutch drum of the motor-driven chain saw by means of an ancillary chain brake device provided in addition to the chain brake device, so that the clutch drum is brought to an immediate stop. This braking action occurs also if the releasing device of the chain brake device is not actuated. In this way, the chain brake device remains activated thereby enabling it to act during operation of the chain saw, for example, in the event that the motor-driven chain saw kicks back while the saw chain is running. The ancillary chain brake device is preferably operable by the throttle lever or the throttle lever locking device so that the clutch drum is braked on throttling back. In this way, a continued running of the saw chain after release of the throttle is thereby reliably prevented.
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公开(公告)号：US4680862A
公开(公告)日：1987-07-21
申请号：US900746
申请日：1986-08-27
Applicant: Dieter Wieland , Abou Aly , Hartmut Riess
Inventor： Dieter Wieland , Abou Aly , Hartmut Riess
Abstract: A motor-driven chain saw is electrically operated by means of a universal motor and has two brake systems operating independently of one another. A mechanical brake system serves as a safety brake and when actuated, the mechanical brake system brings the saw chain to a standstill instantaneously. The second brake system is an electric coasting brake, which when the switch is released stops the saw chain quickly but without recoil. The electrical braking is effected by reversing the polarity of one pole coil of the field winding and short-circuiting it with the rotor winding.
Abstract translation: 电动链锯通过通用电机电动操作，并具有彼此独立运行的两个制动系统。 机械制动系统用作安全制动器，并且当致动时，机械制动系统使锯链瞬间停止。 第二制动系统是电动滑行制动器，当开关释放时，快速停止锯链，但没有后坐力。 电气制动通过使励磁绕组的一个极线圈的极性反转并使其与转子绕组短路来实现。
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Patent Agency Ranking
公开(公告)号：US4625406A
公开(公告)日：1986-12-02
申请号：US712198
申请日：1985-03-15
Applicant: Fusao Fushiya , Nobuhiro Inoue
Inventor： Fusao Fushiya , Nobuhiro Inoue
CPC classification number: F16D67/02 , B27B17/083 , F16D49/00 , F16D59/00
Abstract: A safety device for a chain saw conventional in its overall construction is disclosed which comprises mainly a brake lever pivotally supported by the housing of the chain saw and arranged to stop the cutting chain when the brake lever is actuated either by inertia or by engagement with the operator's hand. The brake lever is formed with a cam surface adapted to press an engaging member connected to the drive shaft out of meshing engagement with an interlocking wheel for driving the cutting chain so as to shut off the driving power to be transmitted to the interlocking wheel. The brake lever also includes a braking member secured thereto and adapted for movement therewith in synchronism with the arcuate movement of the cam surface, into frictional braking engagement with the interlocking wheel for effecting a brake effect on the cutting chain.
Abstract translation: 公开了一种在其整体结构中常规的链锯的安全装置，其主要包括由链锯的壳体可枢转地支撑的制动杆，并且当制动杆通过惯性或通过与 操作手。 制动杆形成有凸轮表面，该凸轮表面适于将连接到驱动轴的接合构件与与用于驱动切割链的互锁轮啮合，以便切断要传递到互锁轮的驱动力。 制动杆还包括固定到其上并适于与凸轮表面的弓形运动同步运动的制动构件，与联锁轮摩擦制动接合，以实现对切割链的制动作用。
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公开(公告)号：US4324045A
公开(公告)日：1982-04-13
申请号：US154534
申请日：1980-05-29
Applicant: Klaus Hoppner , Gunter Wolf
Inventor： Klaus Hoppner , Gunter Wolf
CPC classification number: F16D59/00 , B27B17/0033 , B27B17/083
Abstract: A portable motor chain saw with a safety braking device to protect against kick-back, recoil or centrifugal movements of the saw. The saw includes a handle supported against the motor housing by damping elements, and also includes a locking device which on the one hand is connected with the handle, and on the other hand engages against a hand guard in such a way that it is released under the influence of relative movement, of the motor housing with respect to the handle, caused by a kick-back or centrifugal movement, consequently releasing the hand guard. The locking device has an abutment surface extending transverse to the direction of centrifugal movement, and this abutment surface cooperates with a projection directed against it.
Abstract translation: 具有安全制动装置的便携式电动链锯，以防止锯的反冲，反冲或离心运动。 锯包括通过阻尼元件支撑在马达壳体上的手柄，并且还包括锁定装置，该锁定装置一方面与手柄相连接，另一方面以这样一种方式与手防护罩接合，使其在下面被释放 电动机壳体相对于手柄的相对运动对由反冲或离心运动引起的影响因此释放护手。 锁定装置具有横向于离心运动方向延伸的邻接表面，并且该邻接表面与指向其的突出部配合。
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公开(公告)号：US4241634A
公开(公告)日：1980-12-30
申请号：US042904
申请日：1979-05-29
Applicant: E. Curtis Ambler
Inventor： E. Curtis Ambler
CPC classification number: B27G5/02 , Y10T83/6955 , Y10T83/6975 , Y10T83/863 , Y10T83/8773 , Y10T83/8886 , Y10T83/8889
Abstract: A mitre box has a saw guide subassembly rotatably supported on a vertical post and a multiplicity of indents spaced about a portion of its periphery. A wedge member is pivoted on the base member below the saw guide subassembly and is biased to engage an edge portion in one of the indents thereof to prevent its rotation. Positioning means is provided to orient the engagement edge portion of the wedge member in axial alignment with the post to ensure accurate and stable positioning of the subassembly in a predetermined rotated position about the post. The saw guide subassembly may include a fixedly supported saw guide element and a second saw guide element which is carried on the fixed guide element and pivotable relative thereto about a pivot point adjacent the upper edge of the guide elements to equalize the pressure exerted by the ends of the saw guide subassembly on the saw received therebetween.
Abstract translation: 斜切箱具有可旋转地支撑在垂直柱上的锯子引导子组件和围绕其周边的一部分间隔开的多个凹口。 楔形构件在基座构件的下方枢转于锯子导向组件下方，并且被偏置以与其中的一个凹部中的边缘部分接合以防止其旋转。 提供定位装置以使楔形构件的接合边缘部分与柱体轴向对准以确保子组件在关于柱的预定旋转位置中的准确和稳定的定位。 锯子导向组件可以包括固定支撑的导轨元件和第二锯导引元件，该导向元件被承载在固定的引导元件上并且可相对于其相对于引导元件的上边缘的枢转点枢转，以平衡由端部施加的压力 在锯上的锯子组件在其间接收。
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公开(公告)号：US4197640A
公开(公告)日：1980-04-15
申请号：US942987
申请日：1978-09-18
Applicant: Billy W. Murray
Inventor： Billy W. Murray
CPC classification number: F16D49/08 , B27B17/083
Abstract: A chain saw having an improved safety brake actuating mechanism is disclosed. The actuating mechanism includes a safety lever pivotally mounted on the chain saw housing for movement from an operating position to a braking position in which a brake band is brought into frictional engagement with motive means which drives a cutting chain. A latching member is pivotally mounted on the safety lever for releasable latching engagement with the housing. A spring member engaged intermediate the housing and the latching member exerts a yieldable force on the safety lever which constantly biases the safety lever for movement from the operating position to the braking position while also exerting a yielding latching force on the latching member. The spring member cooperates with the safety lever for holding the latching member in releasable latching engagement with the housing and for resisting movement of the safety lever thereby preventing inadvertent frictional engagement of the brake band with the motive means when the lever is in the operating position. The spring member is cooperatively engaged with the safety lever for permitting rotation and disengagement of the latching member from the housing as the safety lever rotates from the operating position to the braking position in response to an actuating force acting on the safety lever.
Abstract translation: 公开了一种具有改进的安全制动器致动机构的链锯。 致动机构包括枢转地安装在链锯壳体上的安全杆，用于从操作位置移动到制动位置，在该制动位置制动带与驱动切割链的动力装置摩擦接合。 闩锁构件枢转地安装在安全杆上，以与壳体可释放的闩锁接合。 接合在壳体中间的弹簧构件并且闩锁构件在安全杆上施加可屈服的力，该安全杆恒定地偏压安全杆以从操作位置移动到制动位置，同时在闩锁构件上施加屈服闭锁力。 弹簧构件与安全杆配合，用于将闩锁构件保持与壳体可释放地闩锁接合并且用于抵抗安全杆的运动，从而防止当杆处于操作位置时制动带与动力装置的无意摩擦接合。 响应于作用在安全杆上的致动力，当安全杆从操作位置旋转到制动位置时，弹簧构件与安全杆配合地接合，以允许闩锁构件与壳体的旋转和分离。
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公开(公告)号：US4063578A
公开(公告)日：1977-12-20
申请号：US686840
申请日：1976-05-17
Applicant: Angelo Cremona
Inventor： Angelo Cremona
CPC classification number: B27L5/06 , B23Q11/00 , Y10T83/088
Abstract: The safety device is applied to a vertical type, wood shearing or veneer cutting machine, and prevents the blade-holding unit and the bar-carrying unit from striking the hooks of the wood supporting table, during the shearing process. The safety device comprises a set of magnetic proximity switches, placed on the bar-carrying unit near and above the cutting point, equally spaced from each other and opposed to respective hooks or dogs fixed to the wood supporting table. The hooks are also equally spaced and are alternatively of greater and smaller length, so that the upward and downward vertical motion of the wood stock is stopped when the magnetic switches near the hooks of greater length and operation of the machine is stopped so that the hooks or dogs can be replaced by others of smaller length.
Abstract translation: 该安全装置适用于垂直式木材剪切或单板切割机，并且在剪切过程中防止刀片保持单元和料斗承载单元撞击木材支撑台的钩子。 安全装置包括一组磁性接近开关，放置在切割点附近和上方的条形承载单元上，彼此间隔开并与固定到木材支撑台上的相应的钩或狗相对。 钩子也是等间隔的，并且可选地具有更大和更小的长度，使得当机器的较大长度和操作的钩子附近的磁性开关停止时，木材的向上和向下垂直运动被停止，使得钩 或狗可以被较小长度的其他人替代。
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