Chain saw safety bar
OwnerHarvie G. Hamptoninventor
Life of this patent
Estimating the term…
Abstract
A safety bar for chain saws which includes a bar latch pivotally mounted on the chain saw frame above the chain bar and having a protective bar projecting from the bar latch and extending the length of the chain and chain bar. The projecting bar protects the user in the event the saw suddenly recoils and dislodges the user's grip on the handle while in use. The safety bar mechanism permits the safety bar to automatically pivot upwardly as cutting is accomplished from the top to the bottom of a saw stock, and is capable of being pivotally manipulated to the underside of the chain saw when it is desired to cut from the bottom to the top of the stock.
Claims10
A chain saw safety bar for a chain saw comprising:
- a. a shaft carried by said chain saw;
- b. a bar latch rotatably mounted on said shaft and having a bar latch tip and a bar latch recess on one end thereof;
- c. a U shaped safety bar carried by said bar latch and extending above and essentially parallel to the chain and chain bar of said chain saw;
- d. bar latch lock means slidably mounted on said shaft and having a bar latch lock tip and a bar latch lock recess cooperating with said bar latch tip and said bar latch recess of said bar latch to freely permit said bar latch and said U shaped safety bar to rotate upwardly with respect to said chain and said chain bar and to releasably permit said bar latch and said U shaped safety bar to rotate downwardly on said shaft;
- e. safety bar bias means in said chain saw safety bar to bias said safety bar in essentially parallel relationship with respect to said chain and said chain bar;
- and
- f. retaining means in cooperation with said bar latch to prevent sliding movement of said bar latch on said shaft.
Dependencies are inferred from the claim text.