Reciprocating saw blade unit
    11.
    发明授权
    Reciprocating saw blade unit 失效
    往复锯片单元

    公开(公告)号:US5271154A

    公开(公告)日:1993-12-21

    申请号:US996690

    申请日:1992-12-24

    申请人: Masao Ohkanda

    发明人: Masao Ohkanda

    CPC分类号: B23D49/006

    摘要: A reciprocating saw blade unit has a pair of upper and lower separable-type saw blades. Each separable-type saw blade has the shape of a long and narrow plate and is composed of: a blade member having an engaging portion; and a power transmitting member which has an engaging portion and is connected to a driving member for slidingly reciprocating the power transmitting member along its longer dimension. The blade members and the power transmitting members are detachably coupled by using the engaging portions. The upper and lower engaging portions are arranged not to be overlapped each other at any event.

    摘要翻译: 往复式锯片单元具有一对上部和下部可分离型锯片。 每个可分式锯片具有长而窄板的形状,并由以下部件组成:具有接合部分的刀片部件; 以及动力传递构件,其具有接合部分并且连接到驱动构件,用于沿动力传递构件的较长尺寸使动力传递构件滑动往复运动。 叶片构件和动力传递构件通过使用接合部分可拆卸地联接。 在任何情况下,上部和下部接合部分被布置为不彼此重叠。

    Power driven saw with reciprocating saw blades
    12.
    发明授权
    Power driven saw with reciprocating saw blades 失效
    动力锯与往复式锯片

    公开(公告)号:US5031324A

    公开(公告)日:1991-07-16

    申请号:US564567

    申请日:1990-08-09

    IPC分类号: B27B19/09 B23D49/00

    摘要: A power saw has two oppositely reciprocating saw blades guided and supported in a receiving slot in a support plate. The blades are supported during sawing along shoulders on their outside by lower edges of support sections of the support plate. The arrangement is such that forces generated in operation during cutting press the saw blades together in the area of their teeth. This prevents saw dust, chippings etc. penetrating between the two saw blades. Preferably, the thickness of the saw blade shoulders are not greater than half the thickness of the saw blades, and preferably no greater than the thickness of the support section edges. The teeth of the saw blades may be so ground and arranged that the resultant force on the teeth during cutting also forces the saw blades together at their teeth.

    Saws and saw teeth and blades therefor
    13.
    发明授权
    Saws and saw teeth and blades therefor 失效
    锯和锯齿和刀片

    公开(公告)号:US4999915A

    公开(公告)日:1991-03-19

    申请号:US412762

    申请日:1989-09-25

    摘要: A saw blade comprises a support member having at least one edge, and, spaced along that edge, a series of slots in each of which is secured a saw tooth and in which a portion of the tooth is located within the slot and a further portion extends beyond the slot to overlie a portion of a surface of the support member.Part of the slot and a part of the tooth may be sector-shaped, each slot may include an entry portion with side edges and a base edge or edges, and the tip of the sector-shaped part is located centrally of the base edge, the sector-shaped part communicating with the entry portion via an opening in the base edge whose sides are rounded and which are a tight fit with a mating portion of a tooth, the remainder of a tooth fitting into the slot with some clearance.The invention also extends to a tooth for the saw blade, the tooth having a cutting portion and a body portion to locate in said slot.According to a further aspect of the invention, a cutting blade has hardened cutting teeth located in the slot in the blade, there being a support edge or edges spaced from the cutting edge of the blade and substantially parallel thereto which engages a support surface on a guide for the blade.The support edge(s) may be provided by a strip fixed to the blade or by edges on the teeth remote from their cutting portion which project beyond the surface of the blade.

    Power driven saw with reciprocating saw blades
    14.
    发明授权
    Power driven saw with reciprocating saw blades 失效
    动力锯与往复式锯片

    公开(公告)号:US4969270A

    公开(公告)日:1990-11-13

    申请号:US116803

    申请日:1987-10-30

    IPC分类号: B27B19/09 B23D49/00

    摘要: A power saw has two oppositely reciprocating saw blades guided and supported in a receiving slot in a support plate. The blades are supported during sawing along shoulders on their outside by lower edges of support sections of the support plate. The arrangement is such that forces generated in operation during cutting press the saw blades together in the area of their teeth. This prevents saw dust, chippings etc. penetrating between the two saw blades. Preferably, the thickness of the saw blade shoulders are not greater than half the thickness of the saw blades, and preferably no greater than the thickness of the support section edges. The teeth of the saw blades may be so ground and arranged that the resultant force on the teeth during cutting also forces the saw blades together at their teeth.

    Saw blade for a saw having reciprocating blades
    15.
    发明授权
    Saw blade for a saw having reciprocating blades 失效
    具有往复式叶片的锯片的锯片

    公开(公告)号:US4798001A

    公开(公告)日:1989-01-17

    申请号:US115936

    申请日:1987-10-30

    IPC分类号: B23D49/00 B23D61/12 B27B19/02

    摘要: A saw blade, for a power saw having two such blades arranged adjacent and parallel to each other and reciprocating in opposite directions, comprises an elongate blade member having teeth along a bottom edge. The teeth comprise at least three types, a first type being at an outer surface of the blade member, a third type being at the inner surface, and the second type being therebetween. The first type are shaped to produce on the blade's bottom edge an outward force away from the inner surface while cutting a workpiece, and the second and third types are shaped to produce on the blade's bottom edge an inward force, the resultant force on the teeth while cutting urging the teeth in an inward direction away from the outer surface towards the inner surface. When the power saw is operating with a pair of these blades, the blades are urged together at their teeth by the cutting action so effectively eliminating penetration of sawdust and cuttings between the pair of blades. Advantageously the saw blades can be very thin-walled, e.g. 1mm to 2mm thick.

    摘要翻译: 用于具有彼此相邻并平行布置并沿相反方向往复运动的两个这样的叶片的动力锯的锯片包括具有沿着底部边缘的齿的细长叶片构件。 牙齿包括至少三种类型,第一类型在叶片构件的外表面处,第三类型在内表面处,第二类型在其间。 第一类型被成形为在切割工件时在刀片的底部边缘上产生远离内表面的向外力,并且第二和第三类型被成形为在刀片的底部边缘上产生向内的力,在牙齿上的合力 同时沿向内的方向切割迫使牙齿远离外表面朝向内表面。 当动力锯用一对这些叶片操作时,刀片通过切割动作一起在其牙齿处一起被推动,从而有效地消除了锯木屑和刀片在一对刀片之间的穿透。 有利地,锯片可以非常薄壁,例如, 1mm至2mm厚。

    Expanded foil cutting method
    16.
    发明授权
    Expanded foil cutting method 失效
    膨化箔切割方法

    公开(公告)号:US4168640A

    公开(公告)日:1979-09-25

    申请号:US879222

    申请日:1978-02-21

    申请人: Andrew Szego

    发明人: Andrew Szego

    IPC分类号: B23D27/04 B23D49/00 B26D1/45

    摘要: The cutting of masses composed of multiple thickness of expanded foil is accomplished using reciprocating toothed blades that are deeply notched so that the strands of the expanded mesh enter deeply into the notches and are sheared through between the teeth of the blades.

    摘要翻译: 由多层厚度的膨化箔组成的质量的切割是使用深度凹口的往复式齿形刀片来实现的,使得扩张网的股线深入到凹口中并且通过叶片的齿之间剪切。