Wood splitter
First Claim
Patent Images
1. A wood splitter, comprising:
- a) a fixedly mounted splitting wedge (2),b) a hydraulic ram driven pressure plate (4) for feeding wooden workpieces (3) onto the wedge,c) a valve (14) controlled by hydraulic pressure for delivering hydraulic fluid to the ram (5-7) such that forward movement of the pressure plate is only initiated when the hydraulic pressure rises,d) first spring means (23) for returning the pressure plate (4) to a retracted position when the hydraulic pressure falls,e) wherein the valve includes a first inlet port (18) for hydraulic fluid, a second port (19) connected to the hydraulic ram, and a third port (20) connected to a hydraulic fluid tank (1);
f) wherein said first, second and third ports communicate with a common valve chamber (15), andg) a valve body (17) disposed in the chamber and displaceable by the inlet port pressure against the action of second spring means (21).
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Abstract
A wood splitter comprises a fixedly mounted splitting wedge 2 and a pressure plate 4 driven by a hydraulic ram 5,6 so as to feed pieces of wood 3 onto the wedge. Hydraulic fluid is delivered to the ram through the intermediary of a hydraulic-pressure control valve 14. Feed movement of the pressure plate is initiated only when the hydraulic pressure applied to the valve rises above a predetermined value. The pressure plate is returned to its starting position by a spring 23 when the hydraulic pressure falls below the predetermined value.
11 Citations
10 Claims
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1. A wood splitter, comprising:
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a) a fixedly mounted splitting wedge (2), b) a hydraulic ram driven pressure plate (4) for feeding wooden workpieces (3) onto the wedge, c) a valve (14) controlled by hydraulic pressure for delivering hydraulic fluid to the ram (5-7) such that forward movement of the pressure plate is only initiated when the hydraulic pressure rises, d) first spring means (23) for returning the pressure plate (4) to a retracted position when the hydraulic pressure falls, e) wherein the valve includes a first inlet port (18) for hydraulic fluid, a second port (19) connected to the hydraulic ram, and a third port (20) connected to a hydraulic fluid tank (1); f) wherein said first, second and third ports communicate with a common valve chamber (15), and g) a valve body (17) disposed in the chamber and displaceable by the inlet port pressure against the action of second spring means (21). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification