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US 4,300,605 AGranted
Log splitter with protection against twisting moments
OwnerMichel A. Pierratinventor
Life of this patent
Estimating the term…
Abstract
A vertical type log splitter for home use in which a splitting wedge is releasably secured to upright frame members and a power-driven ram guide supports a log to be split and forces it into the splitting wedge. To protect the frame of the log splitter from damage caused by twisting moments and to provide a visual indication of the presence of such moments, the ram guide is tiltably mounted and arranged to abort the splitting action when the angle of tilt exceeds a predetermined angle.
Claims15
In a log splitter having
- first and second frame members,
- support means retaining said frame members in spaced parallel relationship, and
- a carriage supported by said frame members and having a splitting wedge adapted to engage a log to be split,
- the improvement comprising
- a ram guide extending between said frame members and adapted to engage said log at a point opposite said wedge,
- guide means at each end of said ram guide and arranged to cooperate with the respective frame member to direct the movement of said ram guide along a path parallel with said frame members, said guide means defining means for releasing said ram guide from such directed movement when the angle of tilt of the said ram guide with respect to said frame members exceeds a predetermined angle, and
- means for producing relative closing movement between said ram guide and said wedge.
4 more elements
In a log splitter having
- first and second vertical frame members,
- support means retaining said frame members in spaced parallel relationship, and
- a carriage supported by said frame members and having a splitting wedge adapted to engage the upper end of a vertically-positioned log to be split,
- the improvement comprising
- a ram guide extending between said frame members and adapted to engage the lower end of said log at a point opposite said wedge,
- guide means at at least one end of said ram guide and arranged to cooperate with two opposing surfaces of the respective frame member to direct the movement of said ram guide along a path parallel with said frame members, said guide means defining means for releasing said ram guide from such directed movement when the angle of tilt of the said ram guide with respect to said frame members exceeds the predetermined angle, and
- a hydraulic jack having a ram tiltably engaging said ram guide for producing relative closing movement between said ram guide and said wedge, and
- a base supporting said jack and forming part of said support means.
5 more elements
Dependencies are inferred from the claim text.