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US 8,757,135 B2Granted
Splitting wedge
AssigneeKirnuvuori Oy
InventorJouko Vanhatalo
Life of this patent
Estimating the term…
Abstract
A splitting wedge includes at least a wedge (1), an external sleeve (3), and a wedge sleeve (2). The wedge sleeve (2) and the external sleeve (3) are connected to one another by providing one with a flange (8, 10) and the other with a groove (7, 9), the flange (8, 10) and the groove (7, 9) being substantially perpendicular with respect to a direction of motion (B) of the wedge (1), and by arranging the flange (8, 10) in the groove (7, 9).
Claims6
A splitting wedge, comprising:
- a wedge sleeve and an external sleeve, each of which is formed of two halves, the halves of the external sleeve being held together elastically;
- and
- a wedge,
- wherein either of
- i) a lower part of the external sleeve is provided with a groove of the external sleeve, and an upper part of the wedge sleeve is provided with a flange of the wedge sleeve, the groove of the external sleeve and the flange of the wedge sleeve being arranged substantially perpendicularly with respect to a direction of motion of the wedge, whereby the wedge sleeve is connected to the external sleeve by arranging the flange in the groove, or
- ii) the upper part of the wedge sleeve is provided with a groove of the wedge sleeve and the lower part of the external sleeve is provided with a flange of the external sleeve, the groove of the wedge sleeve and the flange of the external sleeve being arranged substantially perpendicularly with respect to the direction of motion of the wedge, whereby the wedge sleeve is connected to the external sleeve by arranging the flange in the groove,
- wherein the flange is provided with a shoulder, and the groove is provided with a mating groove such that the shoulder is arranged in the mating groove, and
- wherein, when the wedge is pushed downwards, the halves of the wedge sleeve are pushed away from one another, and correspondingly push the halves of the external sleeve away from one another at a lower end thereof.
5 more elements
Dependencies are inferred from the claim text.