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US 7,396,195 B2Granted
Safety protective device for working machine
OwnerPin-Feng Changinventor
Life of this patent
Estimating the term…
Abstract
A working machine includes a blade seat movable relative to a sheet plate, and a safety protective device mounted on the blade seat to cover the blades of the blade seat and including at least one swing member pivotally mounted on the blade seat, and a protective board pivotally connected to the at least one swing member. Thus, when any portion of the protective board is pushed by the sheet plate, the whole protective board is driven to pivot relative to the blade seat so that the protective board is moved upward and downward in a whole manner without deflection.
Claims17
A working machine, comprising:
- a blade seat movable relative to a sheet plate and having a bottom face provided with a plurality of blades to move therewith;
- a safety protective device mounted on the blade seat to cover the blades of the blade seat and including at least one swing member pivotally mounted on the blade seat, and a protective board pivotally connected to the at least one swing member;
- wherein the swing member includes a swing arm having a first end formed with a pivot portion pivotally mounted on the blade seat and a second end formed with a swing portion pivotally mounted on the protective board;
- the swing member further includes a stop post secured on the blade seat, and the first end of the swing arm is formed with an outward extending stop portion located beside the pivot portion and movable to rest on the stop post.
1 more element
A working machine, comprising:
- a blade seat movable relative to a sheet plate and having a bottom face provided with a plurality of blades to move therewith:
- a safety protective device mounted on the blade seat to cover the blades of the blade seat and including at least one swing member pivotally mounted on the blade seat, and a protective board pivotally connected to the at least one swing member;
- wherein the swing member includes a swing arm having a first end formed with a pivot portion pivotally mounted on the blade seat and a second end formed with a swing portion pivotally mounted on the protective board;
- the safety protective device further includes at least one pivot member mounted between the protective board and the respective swing member to attach the protective board to the respective swing member;
- the pivot member includes a bolt head rotatably mounted on the protective board, and a bolt extended through the respective swing member and screwed into the bolt head to attach the protective board to the respective swing member.
2 more elements
Dependencies are inferred from the claim text.