WO1996009922A1 - Hand-driven wood splitter - Google Patents

Hand-driven wood splitter Download PDF

Info

Publication number
WO1996009922A1
WO1996009922A1 PCT/SE1995/001104 SE9501104W WO9609922A1 WO 1996009922 A1 WO1996009922 A1 WO 1996009922A1 SE 9501104 W SE9501104 W SE 9501104W WO 9609922 A1 WO9609922 A1 WO 9609922A1
Authority
WO
WIPO (PCT)
Prior art keywords
rod
axe
wood
striking weight
secured
Prior art date
Application number
PCT/SE1995/001104
Other languages
French (fr)
Inventor
Clas Abrahamsson
Original Assignee
Clas Abrahamsson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Clas Abrahamsson filed Critical Clas Abrahamsson
Priority to CA002200860A priority Critical patent/CA2200860C/en
Priority to DE0783402T priority patent/DE783402T1/en
Priority to DK95933698T priority patent/DK0783402T3/en
Priority to DE69512796T priority patent/DE69512796T2/en
Priority to US08/793,867 priority patent/US5704374A/en
Priority to EP95933698A priority patent/EP0783402B1/en
Publication of WO1996009922A1 publication Critical patent/WO1996009922A1/en
Priority to NO971273A priority patent/NO308590B1/en
Priority to FI971237A priority patent/FI971237A0/en
Priority to GR990403345T priority patent/GR3032260T3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B27L7/06—Arrangements for splitting wood using wedges, knives or spreaders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B27L7/005—Hand tools therefor

Definitions

  • the present invention relates to a hand-operated wood-splitter with striking weight movable along a rod connected at its lower end to an axe or splitting wedge against which the striking weight is intended to strike.
  • the object of the invention is a device in which the advantages of the known arrangement are exploited, while at the same time the disadvantages are eliminated.
  • the wood-splitter according to the invention is characterized in that the rod is provided at its upper end with a stop nut or other stop means so designed that a stroke from below by the striking weight facilitates removal of the axe from the wood, and that the axe (splitting-wedge) is secured to a side grip movable along a second rod secured at its lower end to a stump or a stand, the side grip and the axe being rotatable around said second rod, and in that a nut or ring is also secured at the lower end of the rod for the striking weight, said nut or ring being movable to a limited extent in vertical direction in order to reduces the stresses.
  • the arrangement is substantially risk-free and, by rapidly moving the striking weight back towards the top nut, etc., the axe is also removed from the chunk of wood where it has lodged - this also without risk and using little energy.
  • the nut or ring, movable to a limited extent, which is located at the lower end of the rod for the striking weight, provides an extra force, i.e. an extra "push-off" at the start of the upward stroke, thereby increasing efficiency and reducing stresses.
  • the side grip is provided with a cutting edge whereby, with the assistance of the striking weight, possibly after swinging the side grip about the rod, wood for kindling a fire can be splintered.
  • Figure 1 shows a view from the side of a hand- operated wood-splitter
  • Figure 2 shows a detail of the invention.
  • Figure 1 shows the wood-splitting equipment seen from the side. It comprises a stump or stand (10) and an axe or splitting-wedge (5) with a cutting edge (6) for splitting chunks of wood or other pieces of wood.
  • the wood-splitter also includes a striking weight (1) weighing for instance 4 kg, movable along a rod (2) which is secured at its lower end to the axe (splitting-wedge 5) via a plastic washer (3) and a bolt (4).
  • the axe (splitting-wedge) is supported by a side grip (8) provided at its lower end with a cutting edge (6) for splintering kindling.
  • the side grip with axe is rotatable about and slidable along a second rod (7), together with a handle (11). (9) denotes tightening washers.
  • the apparatus In order to chop wood the apparatus is lifted by means of the handle (11) and the axe turned to splitting position above a chunk of wood, in contact therewith.
  • the striking weight (1) is then raised and forced down towards the axe (5) which thus acquires considerable force for splitting the log.
  • the forced guiding prevents the operator from sustaining any injuries. If the axe lodges in the log, the striking weight (1) can be forced up towards the stop nut (12) and the axe easily removed without requiring great force.
  • the apparatus In order to splinter kindling the apparatus is raised by means of the handle (11) and a piece of wood placed below the cutting edge (6) of the side grip (8). Splintering can then be performed with the aid of the striking weight.
  • a nut (13) has been placed at the lower end of the rod (2) for the striking weight, said nut being movable to a limited extent (14) in vertical direction for the purpose of reducing stresses in the apparatus.
  • a hole, 120 mm for instance, can be drilled in the stump (1) for the second rod (7).
  • a stand or the like may be used instead of a stump in order to secure the second rod.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Food-Manufacturing Devices (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Glass Compositions (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Vending Machines For Individual Products (AREA)
  • Stringed Musical Instruments (AREA)
  • Toys (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Supports For Plants (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The present invention relates to a hand-operated wood-splitter with striking weight (1) movable along a rod (2) connected at its lower end to an axe or splitting wedge (5). The invention is characterized in that the rod (2) for the striking weight (1) is provided at its upper end with a stop nut or other stop means (12). The axe, etc. is secured to a swinging arm (8) movable along a second rod (7) and rotatable around this. This latter rod is secured to a stump (10) or a stand. At the lower end of the rod for the striking weight is a nut or ring which is movable to a limited extent in vertical direction in order to reduce the stresses.

Description

Hand-driven wood splitter
Technical field: The present invention relates to a hand-operated wood-splitter with striking weight movable along a rod connected at its lower end to an axe or splitting wedge against which the striking weight is intended to strike.
Background art:
Splitting wood in the traditional manner is not without risk and various constructions have therefore been invented in order to eliminate these risks. A drawback of these constructions is that they are far too expensive to suit people requiring only small quantities of fire-wood.
The first paragraph above describes a construction already known (FR 2541173) which offers increased safety for the user. However, its drawbacks include it being impossible to easily remove the axe when it has become lodged in the chunk of wood. Another drawback is that this wood-splitter does not have an arrangement for splintering wood to kindle a fire.
Description of the invention: The object of the invention is a device in which the advantages of the known arrangement are exploited, while at the same time the disadvantages are eliminated. The wood-splitter according to the invention is characterized in that the rod is provided at its upper end with a stop nut or other stop means so designed that a stroke from below by the striking weight facilitates removal of the axe from the wood, and that the axe (splitting-wedge) is secured to a side grip movable along a second rod secured at its lower end to a stump or a stand, the side grip and the axe being rotatable around said second rod, and in that a nut or ring is also secured at the lower end of the rod for the striking weight, said nut or ring being movable to a limited extent in vertical direction in order to reduces the stresses. Thanks to the forced guiding of the striking weight, the arrangement is substantially risk-free and, by rapidly moving the striking weight back towards the top nut, etc., the axe is also removed from the chunk of wood where it has lodged - this also without risk and using little energy. The nut or ring, movable to a limited extent, which is located at the lower end of the rod for the striking weight, provides an extra force, i.e. an extra "push-off" at the start of the upward stroke, thereby increasing efficiency and reducing stresses.
In a preferred embodiment of the invention the side grip is provided with a cutting edge whereby, with the assistance of the striking weight, possibly after swinging the side grip about the rod, wood for kindling a fire can be splintered. This advantage is not shown within the known technology and enables this phase also to be performed without risk through forced guiding.
Brief description of the drawings:
The invention is described in more detail in the accompanying drawings in which Figure 1 shows a view from the side of a hand- operated wood-splitter and Figure 2 shows a detail of the invention.
Description of embodiment:
Figure 1 shows the wood-splitting equipment seen from the side. It comprises a stump or stand (10) and an axe or splitting-wedge (5) with a cutting edge (6) for splitting chunks of wood or other pieces of wood. The wood-splitter also includes a striking weight (1) weighing for instance 4 kg, movable along a rod (2) which is secured at its lower end to the axe (splitting-wedge 5) via a plastic washer (3) and a bolt (4). The axe (splitting-wedge) is supported by a side grip (8) provided at its lower end with a cutting edge (6) for splintering kindling. The side grip with axe is rotatable about and slidable along a second rod (7), together with a handle (11). (9) denotes tightening washers.
In order to chop wood the apparatus is lifted by means of the handle (11) and the axe turned to splitting position above a chunk of wood, in contact therewith. The striking weight (1) is then raised and forced down towards the axe (5) which thus acquires considerable force for splitting the log. The forced guiding prevents the operator from sustaining any injuries. If the axe lodges in the log, the striking weight (1) can be forced up towards the stop nut (12) and the axe easily removed without requiring great force.
In order to splinter kindling the apparatus is raised by means of the handle (11) and a piece of wood placed below the cutting edge (6) of the side grip (8). Splintering can then be performed with the aid of the striking weight.
In order to reduce stresses in the apparatus during the various strokes, a nut (13) has been placed at the lower end of the rod (2) for the striking weight, said nut being movable to a limited extent (14) in vertical direction for the purpose of reducing stresses in the apparatus. A hole, 120 mm for instance, can be drilled in the stump (1) for the second rod (7). A stand or the like may be used instead of a stump in order to secure the second rod.
The invention can be varied in many ways within the scope of the following claims.

Claims

1. A hand-operated wood-splitter with striking weight (1) movable along a rod (2) connected at its lower end to an axe or splitting wedge (5) against which the striking weight is intended to strike, characterized in that the rod (2) for the striking weight is provided at its upper end with a stop nut (12) or other stop means so designed that a stroke from below by the striking weight (1) facilitates removal of the axe (5) from the wood, and that the axe (splitting-wedge 5) is secured to a side grip (8) movable along a second rod (7) secured at its lower end to a stump (10) or a stand, the side grip and the axe being rotatable around said second rod (7), and in that a nut or ring (13) is also secured at the lower end of the rod (2) for the striking weight (1), said nut or ring being movable to a limited extent (14) in vertical direction in order to reduces the stresses.
2. A hand-operated wood-splitter, characterized in that the side grip (8) is provided with a cutting edge (6) for splintering wood, here also under the influence of the striking weight
(1).
AMENDED CLAIMS
[received by the International Bureau on 29 January 1996 (29.01.96); original claim 1 amended; remaining claim unchanged (1 page )]
1. A hand-operated wood-splitter with striking weight (1) 5 movable along a rod (2) connected at its lower end to an axe or splitting wedge (5) against which the striking weight is intended to strike, the axe (splitting-wedge 5) being secured to a side grip (8) movable along a second rod (7) secured at its lower end to a stump (10) or a stand, the side grip and the axe being rotatable around said second rod (7),
10 characterized in that the rod (2) for the striking weight is provided at its upper end with a stop nut (12) or other stop means so designed that a stroke from below by the striking weight (1) facilitates removal of the axe (5) from the wood, and in that a nut or ring (13) is also secured at the lower end of the rod (2) for the striking weight (1),
15 said nut or ring being movable to a limited extent (14) in vertical direction in order to reduces the stresses.
2. A hand-operated wood-splitter, characterized in that the side grip (8) is provided with a cutting edge (6) for
20 splintering wood, here also under the influence of the striking weight
(1).
PCT/SE1995/001104 1994-09-29 1995-09-25 Hand-driven wood splitter WO1996009922A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CA002200860A CA2200860C (en) 1994-09-29 1995-09-25 Hand-driven wood splitter
DE0783402T DE783402T1 (en) 1994-09-29 1995-09-25 HAND TOOL FOR SPLIT WOOD
DK95933698T DK0783402T3 (en) 1994-09-29 1995-09-25 Hand operated pull-down clover
DE69512796T DE69512796T2 (en) 1994-09-29 1995-09-25 HAND TOOL FOR SPLIT WOOD
US08/793,867 US5704374A (en) 1994-09-29 1995-09-25 Hand-driven wood splitter
EP95933698A EP0783402B1 (en) 1994-09-29 1995-09-25 Hand-driven wood splitter
NO971273A NO308590B1 (en) 1994-09-29 1997-03-19 Hand-operated wood clover
FI971237A FI971237A0 (en) 1994-09-29 1997-03-25 Manual wood splitter
GR990403345T GR3032260T3 (en) 1994-09-29 1999-12-28 Hand-driven wood splitter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403308A SE504677C2 (en) 1994-09-29 1994-09-29 Hand-powered wood split
SE9403308-1 1994-09-29

Publications (1)

Publication Number Publication Date
WO1996009922A1 true WO1996009922A1 (en) 1996-04-04

Family

ID=20395433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1995/001104 WO1996009922A1 (en) 1994-09-29 1995-09-25 Hand-driven wood splitter

Country Status (12)

Country Link
US (1) US5704374A (en)
EP (1) EP0783402B1 (en)
AT (1) ATE185511T1 (en)
CA (1) CA2200860C (en)
DE (2) DE69512796T2 (en)
DK (1) DK0783402T3 (en)
ES (1) ES2138237T3 (en)
FI (1) FI971237A0 (en)
GR (1) GR3032260T3 (en)
NO (1) NO308590B1 (en)
SE (1) SE504677C2 (en)
WO (1) WO1996009922A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012069801A1 (en) * 2010-11-24 2012-05-31 Forest Master Ltd Log splitter assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6453958B1 (en) * 2001-06-07 2002-09-24 Stefano Slavich Log splitting device
AU2002257447A1 (en) * 2002-05-17 2003-12-02 Lawrence Owen Fitzgerald A kit to form a wood splitting apparatus
DE20208117U1 (en) 2002-05-24 2002-09-12 LHR Consulting & Cooperation GmbH & Co. KG, 32257 Bünde Wood splitter
DE10347307A1 (en) * 2003-10-08 2005-05-12 Lhr Consulting & Cooperating G Wood splitter implement has splitting wedge attached to guide shaft for sliding impact weight

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274458A (en) * 1979-11-19 1981-06-23 Dueweke Gilbert R Log splitters
US4294298A (en) * 1979-03-01 1981-10-13 Otte Jr Otho M Impact cutting tool
FR2524372A1 (en) * 1982-04-05 1983-10-07 Henon Bernard Log splitter for fire wood - has vertical sliding rod and weight carrying cutting wedge on base
FR2541173A2 (en) * 1982-04-05 1984-08-24 Henon Bernard Improvements to equipment for slitting and splitting wood
US4905746A (en) * 1989-04-19 1990-03-06 Claude Bedard Log splitter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982572A (en) * 1975-10-31 1976-09-28 Kortendick Russell D Manual log splitter
US4033390A (en) * 1976-02-02 1977-07-05 C & D. Distributors, Inc. Wood splitter
US4211264A (en) * 1978-12-04 1980-07-08 Cross Robert M Log splitter
US4362194A (en) * 1981-01-29 1982-12-07 Lawson Jack O Manually mobile firewood log splitter
GB2118191B (en) * 1982-03-31 1985-06-05 Pirelli General Plc Curing of insulated electric cables
US5495878A (en) * 1995-03-10 1996-03-05 R.E.M. Incorporated Hand held log splitter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294298A (en) * 1979-03-01 1981-10-13 Otte Jr Otho M Impact cutting tool
US4274458A (en) * 1979-11-19 1981-06-23 Dueweke Gilbert R Log splitters
FR2524372A1 (en) * 1982-04-05 1983-10-07 Henon Bernard Log splitter for fire wood - has vertical sliding rod and weight carrying cutting wedge on base
FR2541173A2 (en) * 1982-04-05 1984-08-24 Henon Bernard Improvements to equipment for slitting and splitting wood
US4905746A (en) * 1989-04-19 1990-03-06 Claude Bedard Log splitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012069801A1 (en) * 2010-11-24 2012-05-31 Forest Master Ltd Log splitter assembly

Also Published As

Publication number Publication date
CA2200860A1 (en) 1996-04-04
ES2138237T3 (en) 2000-01-01
US5704374A (en) 1998-01-06
NO971273D0 (en) 1997-03-19
DK0783402T3 (en) 2000-04-17
DE69512796T2 (en) 2000-04-20
DE783402T1 (en) 1998-03-12
ATE185511T1 (en) 1999-10-15
DE69512796D1 (en) 1999-11-18
FI971237A (en) 1997-03-25
CA2200860C (en) 2000-01-04
SE9403308D0 (en) 1994-09-29
FI971237A0 (en) 1997-03-25
EP0783402A1 (en) 1997-07-16
SE504677C2 (en) 1997-04-07
SE9403308L (en) 1996-03-30
NO308590B1 (en) 2000-10-02
NO971273L (en) 1997-03-19
EP0783402B1 (en) 1999-10-13
GR3032260T3 (en) 2000-04-27

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