Blade clamp mechanism
AssigneePositec Power Tools (Suzhou) Co., Ltd.
InventorHaichun Huan
Life of this patent
Estimating the term…
Abstract
The present invention relates to a keyless blade clamp mechanism including a base, a sliding block slidably disposed on the base and a clamping lever pivotally connected on the base. On one pivot side of the clamping lever is a clamp plate and on the other pivot side of the clamping lever is a plate. The base has a supporting surface opposing the clamp plate. In use, the sliding block slides to engage and press the plate causing the clamp plate to pivot and a gap to appear between the clamp plate and the supporting surface to permit a saw blade to be inserted into (or be pulled out of) the gap. The present invention has the advantage that few components are involved and it is easily manufactured at low cost.
Claims20
A keyless blade clamp mechanism for clamping a blade comprising:
- a base with a supporting surface for supporting the blade;
- a sliding block slidably mounted on the base;
- an elastic member mounted between the sliding block and the base for giving the sliding block an upward tendency;
- and
- a clamping lever pivotally mounted on a horizontal pivot on the base which includes on a first side of the pivot and opposed to the supporting surface a clamp plate capable of bearing against the upperside of the blade and on a second side of the pivot a downwardly dependent plate.
A blade clamp mechanism for clamping a blade comprising:
- a hollow base with opposing sides defining an upper supporting edge for supporting the blade;
- a pivot mounted prominently on the supporting edge;
- a clamping lever pivotally mounted on the pivot which includes on a first side of the pivot a clamp plate capable of bearing against the upperside of the blade supported on the supporting edge and on a second side of the pivot a plate downwardly dependent into the hollow base;
- an actuating member passing through the clamp plate for actuating the clamp plate between a clamping position in which the clamp plate is clamped against the blade supported on the supporting edge and a non-clamping position in which the clamp plate is not clamped against the blade supported on the supporting edge;
- and
- an elastic member mounted between the actuating member and the base for giving the actuating member an upward tendency, wherein the actuating member is compressively mounted on the hollow base such that a lower portion of the actuating member is urged into engagement with a lower portion of the dependent plate to pivotally bias the clamp plate into the clamping position.
A keyless blade clamp mechanism comprising:
- a blade;
- a base with a supporting surface for supporting the blade;
- a sliding block slidably mounted on the base;
- an elastic member mounted between the sliding block and the base for giving the sliding block an upward tendency;
- and
- a clamping lever pivotally mounted on a horizontal pivot on the base which includes on a first side of the pivot and opposed to the supporting surface a clamp plate capable of bearing against the upperside of the blade and on a second side of the pivot a downwardly dependent plate.
Dependencies are inferred from the claim text.