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US 7,254,892 B2Granted
Support mechanism for a reciprocating tool
AssigneeBlack & Decker Inc.
InventorAndrew Walker
Life of this patent
Estimating the term…
Abstract
A support roller 15 for supporting a blade of a jigsaw having a scroller mode and a pendulum mode is disclosed. A roller support frame 18 supports the roller 15 and is mounted via a collar 32 to a drive shaft 10 of the jigsaw such that the blade support roller 15 rotates with the jigsaw blade as the drive shaft 10 is rotated in the scroller mode. The support frame 18 also pivots relative to the jigsaw housing to enable the blade support roller 15 to remain in contact with the jigsaw blade in the pendulum mode.
Claims12
A jigsaw comprising:
- a housing;
- a motor in said housing;
- a reciprocating working member coupled with said motor, said reciprocating working member executing reciprocating motion relative to said housing, said reciprocating working member including a cutting blade;
- said jigsaw has a mode in which the reciprocating working member rotates relative to said housing about an axis substantially parallel to the direction of reciprocating motion of the working member;
- a support apparatus for supporting said reciprocating working member, said support apparatus including a support engaging the cutting blade to provide a reaction force to said cutting blade along a line of action of the tool and said reaction force being substantially in line with the line of action;
- a mount rigidly mounted with said housing, and said mount including a bearing bushing rigidly connected to said support for mounting the apparatus with the working member to enable said support to remain in engagement with the working member during rotation thereof relative to the body about said axis, said support and mount positioned outside of the jigsaw housing.
3 more elements
A jigsaw comprising:
- a housing;
- a motor in said housing;
- a reciprocating working member coupled with said motor, said reciprocating working member executing reciprocating motion relative to said housing, said reciprocating working member including a cutting blade;
- said jigsaw has a mode in which the reciprocating working member executes pivoting reciprocating motion relative to said housing about an axis transverse to the direction of reciprocating motion of the working member;
- a support apparatus for supporting said reciprocating working member, said support apparatus including a support engaging the cutting blade to provide a reaction force to said cutting blade along a line of action of the tool and said reaction force being substantially in line with the line of action;
- a mount rigidly mounted with said housing, and said mount including a bearing bushing rigidly connected to said support for mounting the apparatus with the working member to enable said support to remain in engagement with the working member during pivoting reciprocating motion thereof relative to the body of said axis, said support and mount positioned outside of the jigsaw housing.
3 more elements
A jigsaw comprising:
- a housing;
- a motor in said housing;
- a working member including a blade which is reciprocated relative to said housing, said jigsaw having a first operating mode in which said working member can be rotated relative to said housing about a first axis substantially parallel to the direction of reciprocating motion of the working member, and said jigsaw having a second operating mode in which said working member can execute pivoting reciprocating motion relative to said housing about a second axis which is transverse to the direction of reciprocating motion of the working member;
- a support engaging the blade to provide a reaction force to said blade along a line of action of the jigsaw and said reaction force being substantially in line with the line of action;
- a mount rigidly mounted with said housing, and said mount including a bearing bushing rigidly connected to said support for mounting the support with the working member to enable said support to remain in engagement with the working member during both said first and second operating modes, said support and mount outside of said jigsaw housing.
2 more elements
Dependencies are inferred from the claim text.