Multifunctional foldable saw

• US 5,661,908 A
• Filed: 08/16/1996
• Issued: 09/02/1997
• Est. Priority Date: 08/16/1996
• Status: Expired due to Fees

• Current Assignee: Tsai-Yuan Chen
• Original Assignee: Tsai-Yuan Chen
• Inventors: Chen, Tsai-Yuan
• Primary Examiner(s): Watts, Douglas D.
• Application Number:
  US08/697,005
• Time in Patent Office: 382 Days
• Field of Search: 30/125, 30/160, 30/161, 30/517, 30/519, 30/331, 30/332, 30/333, 30/329, 30/522, 30/523
• US Class Current: 30/125
• CPC Class Codes: B23D 51/01 characterised by the handle
• CPC Class Codes: B23D 51/03 with extensible or collapsible frames ; Frames with spare blade storage means
• CPC Class Codes: B23D 51/10 for hand-held or hand-operated devices
• CPC Class Codes: B23D 61/121 Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
• CPC Class Codes: B26B 1/02 with pivoted blade

Abstract

This disclosure concerns a foldable saw. It includes a main body, an upper cover disposed on an upper wall of the main body, a lower cover disposed on a lower wall of the main body and a rear cover. This foldable saw has receptacles for receiving spare saw blades which can be taken out to replace the original one. Also, this foldable saw can store several saw blades and these saw blades can be changed for different purposes when it is needed.

Claims

1. A multifunctional foldable saw comprising:

a main body formed with a longitudinal slot along a lateral side, a rear end of the main body being disposed with a notch, two channels being respectively formed on two opposite lateral walls of the notch;

a saw blade locating mechanism disposed at a front end of the main body;

an upper cover disposed on an upper wall of the main body, a rear end of the upper cover being formed with a notch, an inner face of the upper cover, which contacts with an upper wall of the main body, being formed with a receptacle extending to the notch of the rear end, whereby the notch serves as an opening of the receptacle for receiving a spare saw blade therein;

a lower cover disposed on a lower wall of the main body, a rear end of the lower cover being formed with a notch, an inner face of the lower cover, which contacts with the lower wall of the;

main body, being formed with a receptacle extending to the notch of the rear end, whereby the notch serves as an opening of the receptacle for receiving a spare saw blade therein, a fixing seat being integrally formed at a front end of the lower cover; and

a rear cover formed with two fissures, two rails being respectively disposed on two sides of the rear cover for slidably fitting into the channels of the notch of the main body so as to insert the rear cover into the notch of the main body.

2. A multifunctional foldable saw as claimed in claim 1, wherein a slipproof seat is integrally formed on the lower wall of the front end of the main body, the slipproof seat being formed with radial slipproof dents and a central through hole, the locating mechanism including:

a saw blade seat disposed on the slipproof seat, having a driven section, a central through hole and a recess on upper face, a lower face of the saw blade seat being formed with radial slipproof dents corresponding to the slipproof dents of the slipproof seat;

a saw blade having a projecting section integrally extending from a rear end thereof, the projecting section being formed with a through hole;

a rotary switch which is a disk-like body having peripheral slipproof teeth and a thread rod downward extending from the center of lower side; and

a leaf spring formed with a central through hole;

whereby the thread rod of the rotary switch is passed through the through hole of the leaf spring, the through hole of the projecting section of the saw blade, the through hole of the saw blade seat and the through hole of the slipproof seat to be screwed into a thread hole of the fixing seat of the lower cover, whereby the projecting section of the saw blade is secured in the recess of the saw blade seat.

3. A multifunctional foldable saw as claimed in claim 1, wherein the upper and lower covers are fused with the main body by ultrasonic wave.

4. A multifunctional foldable saw as claimed in claim 1, wherein an upper and a lower faces of the rear cover are disposed with slipproof stripes.