Reciprocating saw blade unit

• US 5,271,154 A
• Filed: 12/24/1992
• Issued: 12/21/1993
• Est. Priority Date: 12/25/1991
• Status: Expired due to Fees

• Current Assignee: Kioritz Corporation (Yamabiko Corporation)
• Original Assignee: Kioritz Corporation (Yamabiko Corporation)
• Inventors: Ohkanda, Masao
• Primary Examiner(s): Watts, Douglas D.
• Application Number:
  US07/996,690
• Time in Patent Office: 362 Days
• Field of Search: 30/210, 30/216, 30/228, 30/369
• US Class Current: 30/216
• CPC Class Codes: B23D 49/006 with contiguous, oppositely reciprocating saw blades

Abstract

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.

Claims

1. A reciprocating saw blade unit comprising;

a pair of upper and lower separable-type saw blades each of which have the shape of a long and narrow plate;

said pair of upper and lower separable-type saw blades being slideably engaged over their length;

each blade of said pair of upper and lower separabletype saw blades having a first engaging portion;

a pair of power transmitting members each having a second engaging portion;

each of said pair of power transmitting members connected to a driving means for sliding and relative reciprocation of each of said pair of power transmitting members along a longitudinal length of said transmitting members;

said each blade and said each of said pair of power transmitting members forming a detachable coupling by engagement of said first engaging portion and said second engaging portion;

wherein each of said detachable coupling formed between said each blade member and said each of said pair of power transmitting members are continuously spaced apart along a longitudinal axis of said saw blade unit while said driving means is reciprocating said pair of power transmitting members and said pair of upper and lower separable-type saw blades.

2. A reciprocating saw blade unit according to claim 1, wherein said each said detachable coupling has a dovetail-groove formed in the shape of a "T".