DE102013008787A1 - Wood lifting tool and method for depositing or shedding wooden parts - Google Patents

Abstract

A wooden lifting tool (1) with a rod-shaped or rod-shaped section (2) has a tip (4) tapering towards the end at one end and a handle (3) at the other end. The tip (4) is hook-free and has a cross-section perpendicular to the longitudinal direction (X) of the rod-shaped section (2) in the conically tapering part which deviates from a circular shape and tapers to the end.

Description

The invention relates to a Holzhebewerkzeug according to the preamble of claim 1 and a method for dropping or depositing wood parts according to the preamble of claim. 6

Often it is difficult when stacking firewood to pick this up with his hands and put on. Therefore, one uses auxiliary equipment to facilitate the transport or lifting of wooden parts.

Out US 5,355,831 a firewood pliers is known, which has two claws for gripping the piece of wood, with which the piece of wood is embraced.

Out US 4,560,194 There is known a casual device whose hook-shaped tip is driven to pull or turn tree trunks into it.

US 8,251,416 B1 describes a carrying device for firewood, which have two spiked hooks and a carrying handle between them, which connects the two hooks. The hooks engage in opposite faces of a piece of wood, by lifting the handle, the piece of wood between the hook is clamped and can be moved.

The devices mentioned are particularly not suitable for stacking and lifting a variety of wood parts, eg. B. to fill a wooden basket or to load a car, since the gripping process is very cumbersome.

US Pat. No. 6,428,066 B1 suggests a rod having a hook tip. The wood is impaled by this and released by pivoting the rod about an axis perpendicular to the rod longitudinal axis in a throwing motion of the rod. This is done by the hook, which engages behind a piece of wood part when skewering, this throwing behind the piece breaks out of the wood during the throwing motion and so the rear grip is released.

The disadvantage of this is that for a dropping on a pile of wood with this rod because of its barb at the end of the tip is very cumbersome or impossible. On the other hand, if necessary, when throwing a larger part torn out of the wood and is then no longer available as firewood.

Object of the present invention is therefore to provide a corresponding Holzhebewerkzeug and a method for lifting and depositing of wood parts, which do not have the disadvantages described.

This object is achieved by a wood lifting tool having the features of claim 1 and a method for lifting and depositing wood parts with the features of claim 6. Advantageous embodiments can be found in the respective subclaims.

According to the invention the tip of the Holzhebewerkzeugs is formed without hooks and has a deviating from a circular cross-section. If the lifting tool is driven into the wood, the result is a puncture, in which the wood lifting tool, which is formed in particular of metal, preferably forged metal, is held in a form-fitting manner. If the Holzhebewerkzeug then rotated about the longitudinal axis, the puncture opening is on the other hand widened due to the inertia of the piece of wood on the one hand and the deviating from the circular cross section of the tip, so that the piece of wood from the Holzhebewerkzeug dissolves.

The rotation takes place at least by turning in a first direction of rotation. But it can also be a back and forth rotation, so that the rotation also takes place in a second, opposite to the first direction of rotation. Preferably, the rotation angle for the rotation between 45 ° and 135 °, in particular approximately at 90 °.

In this way, by turning the handle of the Holzhebewerkzeugs the release of the piece of wood can be effected. This can happen when throwing, as well as during or after dropping. In this way, a particularly simple handle of the wood part is possible.

Preferably, it is provided that the tip has a polygonal, in particular triangular, square or square outline, so that a particularly effective widening of the puncture opening is possible, in particular if one of the edges of the tip is in the vicinity of a branch hole.

The handle is preferably designed so that the Holzhebewerkzeug has a substantially T-shaped configuration. In particular, the handle may be designed in the manner of a spade handle.

The invention will be described below with reference to 1 to 4 explained in more detail.

1 Shows a view of a Holzhebewerkzeugs invention.

2 - shows a detail enlargement of the 1 in the area of the top.

3 - shows the position of the wooden lifting tool when piercing a wooden part.

4 - shows the position of the wood lifting tool after rotating.

That in the 1 and 2 shown wooden lifting tool 1 has a rod-shaped or rod-shaped section extending in a longitudinal direction X. 2 on, which is preferably designed as a round iron or the like.

At one end there is a handle 3 , the wooden lifting tool 1 preferably gives a T-shape. The handle 3 should be designed to be locked by a user while gripping the handle 3 the wooden lifting tool 1 can be easily rotated about an axis of rotation parallel to the longitudinal direction. Other forms of grip than the shape shown are also conceivable. At the other end, the wooden lifting tool has a point 4 in the example shown in the form of a polygonal tip with a plurality of edges 4b . 4c . 4d is formed, which is in a common tip 4a to meet. Preferably, a triangular point or a square tip is provided. In general, any tapered tip is suitable without hooks at the free end whose outline deviates in cross section to the longitudinal direction X of the circular shape. Also in cross-section oval, hook-free tips or tips with combined round and square cross-sections are considered.

The tip is in a wooden part to be lifted 5 encountered in the longitudinal direction X, this results in the 3 shown picture. So that the impaling of wooden parts 5 is easy, should the wood lifting tool 1 have a sufficient own mass. By skewering the wooden part 5 arises in the wood 5 a puncture opening 6 that the shape of the outer contour of the top 4 is adjusted and consequently with the top 4 enters a form fit and so on the Holzhebewerkzeug 1 is fixed. In the example shown, the tip has a square outline, so that the puncture opening 6 also gets a square outline.

The wood part 5 can now be raised. Should the engagement between wood lifting tool 1 and wood part to be loosened becomes the wood lifting tool 1 (eg in plane YZ), in particular by turning the handle 3 in and / or against the direction of arrows P1 and P2 about the longitudinal axis of the section 2 , This is the puncture opening 6 widened, as can be seen at the pos. 6 ' in 4 recognizes. This is due to the inertia of the wood part 5 , which wants to follow the rotation, and by the non-circular contour of the tip 4 , which ensures that the puncture opening 6 to 6 ' is bored. As a result, the form fit between Holzhebewerkzeug 1 and wooden part 5 abandoned and the wood part is detached from the wood lifting tool.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 5355831 [0003]
• US 4560194 [0004]
• US 8251416 B1 [0005]
• US 6428066 B1 [0007]

Claims (8)

Wooden lifting tool ( 1 ) with a rod or bar-shaped section ( 2 ), at one end of a tapered tip ( 4 ) and at the other end a handle ( 3 ), characterized in that the tip ( 4 ) is formed hook-free and in cross-section perpendicular to the longitudinal direction (X) of the rod-shaped portion ( 2 ) has in the tapered part a deviating from a circular shape, tapering to the end outline. Wooden lifting tool ( 1 ) according to claim 1, characterized in that the tip ( 4 ) has an angular, in particular triangular, quadrangular or square outline. Wooden lifting tool ( 1 ) according to one of the preceding claims, characterized in that the handle ( 3 ) is designed so that the Holzhebewerkzeug ( 1 ) has a substantially T-shaped configuration. Wooden lifting tool ( 1 ) according to one of the preceding claims, characterized in that the handle ( 3 ) is designed in the manner of a spade handle. Wooden lifting tool ( 1 ) according to one of the preceding claims, characterized in that it is formed of metal, in particular forged metal. Method for lifting and depositing wooden parts ( 5 ), in particular firewood or firewood, in which a wood lifting tool ( 1 ), in particular according to one of the preceding claims, having a rod-shaped or rod-shaped section extending in a longitudinal direction (X) ( 2 ) and a tip ( 4 ), a wooden part ( 5 ) by driving a Holzhebewerkzeugs ( 1 ) in the wood part ( 5 ) forming a puncture opening ( 6 ) and then the wooden part ( 5 ) from the wood lifting tool ( 1 ) is released for depositing or discarding at a storage area, characterized in that for releasing the Holzhebewerkzeugs ( 1 ) from the wood part ( 5 ) the Holzhebewerkzeug about a rotation axis parallel to the longitudinal direction (X) of the rod or rod-shaped portion ( 2 ) is rotated in at least one first direction of rotation and thereby the puncture opening ( 6 ) is widened ( 6 ' ). A method according to claim 6, characterized in that the rotation takes place after rotation in a first direction of rotation in a second, opposite to the first direction of rotation. A method according to claim 6 or 7, characterized in that the rotation angle for the rotation between 45 ° and 135 °, preferably about 90 °.

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