WO2022012716A1 - Râteau - Google Patents

Râteau Download PDF

Info

Publication number
WO2022012716A1
WO2022012716A1 PCT/DE2021/100603 DE2021100603W WO2022012716A1 WO 2022012716 A1 WO2022012716 A1 WO 2022012716A1 DE 2021100603 W DE2021100603 W DE 2021100603W WO 2022012716 A1 WO2022012716 A1 WO 2022012716A1
Authority
WO
WIPO (PCT)
Prior art keywords
hand tool
handle
web
tool according
axis
Prior art date
Application number
PCT/DE2021/100603
Other languages
German (de)
English (en)
Other versions
WO2022012716A4 (fr
Inventor
Stefan Roehrich
Thomas Mole
Original Assignee
Stefan Roehrich
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 Stefan Roehrich filed Critical Stefan Roehrich
Priority to DE112021003724.2T priority Critical patent/DE112021003724A5/de
Publication of WO2022012716A1 publication Critical patent/WO2022012716A1/fr
Publication of WO2022012716A4 publication Critical patent/WO2022012716A4/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28—Undercarriages for supports with one single telescoping pillar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems

Definitions

  • the present invention relates to a hand tool of the so-called rake type.
  • a hand tool comprises a handle.
  • the stem is usually an elongate, usually round, rod with a central longitudinal axis.
  • At one end of the handle is a tool formed from a bar with tines attached thereto.
  • the web has the shape of an elongated rectangle with a longitudinal and a transverse central axis.
  • rakes In addition to the rakes described, there are also so-called rakes, which have a different structure. Hand tools of the type described, rakes, are primarily used to sweep, for example, leaves or debris from underground without unduly moving soil material which slips through the gaps between the tines and remains in place. A well-known use of hooks is also for smoothing and spreading sand, small stones and the like. A concrete application takes place in so-called sand bunkers on golf courses.
  • the present invention is based on the object of developing a hand tool of the generic type in such a way that this is a simple way of a Person can be carried and used.
  • the invention proposes a hand tool with the features of patent claim 1 for the technical solution. Further advantages and features emerge from the dependent claims.
  • the invention proposes that an articulated connection is formed between the handle and the bar, which allows the bar to be folded over, twisted or pivoted into a position in which the bar runs parallel to the bar.
  • the unit made up of bar/tines and handle can be combined into a simple, elongated overall unit that can be carried in a golf bag, for example, without any problems.
  • a joint is provided here, which allows the web to move relative to the stem.
  • the articulated connection consists of a combination of a rotary joint and a pivot axis. This is arranged between the stem and the web. It allows the web or the web elements to rotate about an axis of rotation on the one hand and pivoting of the handle relative to this axis of rotation. This combination ensures that, from any starting position of the bar and the handle, the bar can be twisted and the handle pivoted into a position in which the bar runs parallel to the handle.
  • the assembly of web and prongs can be collapsible.
  • the unit can consist of at least two or more parts which are pivotable relative to each other. In this way, the unit can be shortened accordingly.
  • the pivot axes lie parallel to the transverse central axis of the web.
  • an axis of rotation is provided which is essentially perpendicular to the plane formed by the web. Around this axis, the bar/harken segments can be twisted relative to each other and relative to the style.
  • a position safeguard is provided. This can be a clamp fuse or, according to a proposal of the invention, a safety pin.
  • the articulated connection between the stem and the web allows the web to be pivoted relative to the stem about a longitudinal central axis. This allows the bar and tine rake element to be positioned at an angle to the handle, providing a simplified position of use.
  • the individual elements can be made of different materials. It can be elements made of wood, metal or plastic. Web and tines can be formed from the same material or be composed of different materials.
  • the handle can also be made of wood, metal and/or plastic. According to a further proposal of the invention, the handle can be a telescopic rod or can be folded up in some other way.
  • the hinge is preferably formed of metal, plastic, or a combination thereof.
  • two rake elements are rotatable about an axis and pivotable relative to each other about the same axis on this axis.
  • An enlarged diameter stop is formed at one end of the axle. This can be, for example, a one-piece, plate-like flange.
  • a corresponding counter bearing is attached or pushed on and fastened, for example by means of a screw.
  • the relative mobility of the two rake elements is limited by a cam track.
  • this is realized by a ball which runs in two track-shaped depressions in the surfaces of the rake elements which are in contact with one another.
  • the clamping of the rake members between the two stops and any o-rings provided provide sufficient friction to hold the members in a collapsed or unfolded position.
  • Positioning of the rake elements in relation to their rotational position about the axis is carried out, for example, by a latching element in one of the stop elements.
  • a further ball can engage in a recess formed in a surface of a rake element facing the stop element.
  • the stop element attached to or pushed onto the axis is provided with a bearing block on the surface facing away from the rake elements, in which a further axis, a pivot axis, can be inserted.
  • the bearing block can be applied directly to the surface or can be detachably attached to it, for example screwed, welded or glued.
  • This pivot axis has a connection unit for connecting the handle. According to one proposal of the invention, this involves a threaded hole into which a threaded pin is screwed at one end of a handle. The handle can thus pivot with the pivot axis about its central axis. This pivot axis is essentially perpendicular to the axis about which the rake elements rotate.
  • the pivot axis for the handle is provided with an eccentric ring which forms a stop.
  • the stop can be in the form of a cam which abuts against the surface of the stop element in an end position.
  • O-rings can be used between the eccentric ring and the bearing block element.
  • a further independently inventive aspect of the present invention consists in a handle which is formed from telescopically slidable elements.
  • a damping element is advantageously used within the elements, which automatically provide a hollow interior space for the purpose of inserting other elements, that is to say are tubular.
  • this damping element consists of a plug which seals against the inner wall of the pipe and provides a narrowed air passage option.
  • it may be a tubular plug that is closed at the open ends, in which end Degrees small openings are formed.
  • such a plug can be arranged in the telescopic element with the largest inner diameter. This plug is then automatically located in the end area of this telescopic element, which is also the end area of the stem.
  • the damping element according to the invention ensures that when the telescopic handle is pulled apart, the damping element provides resistance to pushing it in. This is because when the telescopic elements are pushed together, air pressure is built up inside, which is relieved via the connection points and the end areas.
  • One or more damping elements according to the invention thus ensure air resistance, which brings about the damping.
  • the damping element secures the telescopic rod against easy pulling apart, even when it is pushed together.
  • the rod of the handle consists of several telescoping tubular elements.
  • the inside diameter of each outer tube is slightly larger than the outside diameter of the inserted tube.
  • Each tube is internally threaded at both ends.
  • Each tube inserted into a larger tube has a guide piston at one end, which is screwed with an external thread into the internal thread at the end of the tube.
  • the guide piston in turn carries a ring made of a conductive material such as Teflon.
  • the diameter dimensions are dimensioned in such a way that the piston with the slide ring slides with some resistance but without any problems in the outer tube.
  • the tube provided with guide pistons has a guide slide ring.
  • This ring is in turn screwed with an external thread into an internal thread at the end of the pipe.
  • Its inner diameter is adapted to the outer diameter of the internally routed pipe with very tight tolerances. If the inner tube is moved in the outer tube, an overpressure of air is generated between the guide slide ring on the one hand and the guide piston on the other hand, which provides a low resistance.
  • this construction means that the guides are largely free of play, ie the pipes do not wobble relative to one another low forces required when sliding in and out, which provide a stable feel. At the same time, the entry of dirt is prevented.
  • the outermost tube does not carry a guide piston, the innermost tube does not carry a guide sliding ring.
  • FIG. 1 shows a perspective representation of an exemplary embodiment of a rake according to the invention in the functional state
  • FIG. 2 shows a representation according to FIG. 1 in the folded state
  • FIG. 3 shows a perspective illustration of an exemplary embodiment of a Harken segment according to the invention
  • FIG. 4 shows a perspective illustration of an exemplary embodiment for a further Harken segment according to the invention
  • Figure 5 is a perspective detail representation of an embodiment of an inventive eccentric cam element
  • FIG. 6 shows a perspective detail view of an exemplary embodiment of a headstock according to the invention.
  • FIG. 1 shows the head piece of a rake 1 according to the invention, consisting of the rake element 2, the handle 3 and a joint 4 arranged in between.
  • two Harken segments 5, 6, which are rotatable or pivotable relative to each other. They lie on two adjacent parallel planes in which they can be rotated about a center, so that they can be moved from the functional position shown in FIG. 1 into the transport position shown in FIG.
  • each of the Harken segments 5, 6 has a bore 10, 11 at an end region.
  • the Harken segments 5 , 6 can be rotated about an axis (not shown) that protrudes through the bores 10 , 11 .
  • the Harken segment 5 shows a link track 12 running concentrically to the bore 10.
  • the Harken segment 6 shows a bore 13 lying above the bore 11.
  • a locking pin not shown, can run through the bore 13 in the link track 12, so that in this way a Fixation of the two Harken segments can be achieved relative to each other in the respective position.
  • a locking link can also be used, as described above.
  • both Harken segments look essentially like the Harken segment 5, with the link track 12 being designed in a manner not shown in the second segment in such a way that there is an end limit when a ball running in the two link tracks lying opposite one another is used.
  • FIG. 2 shows such a locking pin 9 recognize.
  • the top plate 16 consists of a plate-shaped base element, which is circular in the exemplary embodiment shown, on which two bearing blocks 18 are arranged. These have mutually aligned holes 19 for a pivot axis.
  • This can be seen in FIG. 2 and is identified with the reference number 7 .
  • This pivot axis 7 protrudes through the bore 14 of an eccentric cam 8, as shown in detail in FIG. If the handle is pivoted about the pivot axis 7 relative to the front panel, the cam 8 is pivoted as well. In the functional position shown in FIG. 1, it comes against the locking pin 9 and presses it in against the force of a spring (not shown). The locking pin 9 then moves axially through the bore 13 into the cam belt 12 and fixes the Harken segments 5, 6 in the respective position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention vise à perfectionner un outil à main sous forme de râteau, de sorte qu'il peut être transporté et utilisé de manière aisée par un individu. A cet effet, l'invention concerne un outil à main comportant un manche et un élément de liaison, agencé à une extrémité du manche, ledit élément de liaison ayant sensiblement la forme d'un rectangle oblong et s'étendant par son grand côté transversalement au manche, dans une position adéquate à l'utilisation de l'outil à main, des dents, qui s'étendent sensiblement perpendiculairement au grand côté, étant agencées sur un des grands côtés, une liaison articulée étant réalisée entre le manche et l'élément de liaison et permettant un basculement de l'élément de liaison dans une position dans laquelle l'élément de liaison s'étend parallèlement au manche et la liaison articulée se composant d'une association d'un axe de rotation et d'un axe de pivotement.
PCT/DE2021/100603 2020-07-13 2021-07-09 Râteau WO2022012716A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112021003724.2T DE112021003724A5 (de) 2020-07-13 2021-07-09 Harke

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020118441.7 2020-07-13
DE102020118441 2020-07-13
DE102020129937.0 2020-11-12
DE102020129937 2020-11-12

Publications (2)

Publication Number Publication Date
WO2022012716A1 true WO2022012716A1 (fr) 2022-01-20
WO2022012716A4 WO2022012716A4 (fr) 2022-03-10

Family

ID=77167929

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/DE2021/100604 WO2022012717A1 (fr) 2020-07-13 2021-07-09 Tige télescopique
PCT/DE2021/100603 WO2022012716A1 (fr) 2020-07-13 2021-07-09 Râteau

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/DE2021/100604 WO2022012717A1 (fr) 2020-07-13 2021-07-09 Tige télescopique

Country Status (2)

Country Link
DE (1) DE112021003724A5 (fr)
WO (2) WO2022012717A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110538A (en) * 1936-04-24 1938-03-08 William J Walsh Golf rake
US3614149A (en) * 1969-08-01 1971-10-19 Edward J Derderian Combined golf ball retriever and rake
US4216831A (en) * 1979-03-23 1980-08-12 Ritchie David A Golf club attachment for raking sand traps and retrieving golf balls
GB1600603A (en) * 1978-05-19 1981-10-21 Sandell E J Rakes
GB2250414A (en) * 1990-12-01 1992-06-10 James Lennox Henry Folding and telescopic sand rake.
WO1994007353A1 (fr) * 1992-10-01 1994-04-14 Claes Billstam Rateau pliable avec support de montage pour outil supplementaire
DE20005759U1 (de) * 2000-03-29 2000-06-15 Schloettke Ingo Transportable, platzsparende Harke mit einem Stiel
US6698178B1 (en) * 2000-12-01 2004-03-02 David Huffman Sand trap rake and storage apparatus
US20060168935A1 (en) * 2005-01-31 2006-08-03 James Sanders Collapsible rake
US7856802B2 (en) * 2008-11-21 2010-12-28 Gf Developpement Combined golf ball retriever and retractable sand rake

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9316598U1 (de) * 1993-10-29 1994-01-13 Shen, Wei Hong, Taipeh/T'ai-Pei Teleskopisch zusammenschiebbarer Lampenständer
US5934175A (en) * 1998-01-30 1999-08-10 Vatel; Bronislav Cylindrical working member and system employing same
CN201149016Y (zh) * 2007-08-20 2008-11-12 毛连华 阻尼伸缩管
DE102010035991A1 (de) * 2010-09-01 2012-03-01 J. Kühl - 3K - Engineering Teleskopierbarer Halte- oder Stützstab

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110538A (en) * 1936-04-24 1938-03-08 William J Walsh Golf rake
US3614149A (en) * 1969-08-01 1971-10-19 Edward J Derderian Combined golf ball retriever and rake
GB1600603A (en) * 1978-05-19 1981-10-21 Sandell E J Rakes
US4216831A (en) * 1979-03-23 1980-08-12 Ritchie David A Golf club attachment for raking sand traps and retrieving golf balls
GB2250414A (en) * 1990-12-01 1992-06-10 James Lennox Henry Folding and telescopic sand rake.
WO1994007353A1 (fr) * 1992-10-01 1994-04-14 Claes Billstam Rateau pliable avec support de montage pour outil supplementaire
DE20005759U1 (de) * 2000-03-29 2000-06-15 Schloettke Ingo Transportable, platzsparende Harke mit einem Stiel
US6698178B1 (en) * 2000-12-01 2004-03-02 David Huffman Sand trap rake and storage apparatus
US20060168935A1 (en) * 2005-01-31 2006-08-03 James Sanders Collapsible rake
US7856802B2 (en) * 2008-11-21 2010-12-28 Gf Developpement Combined golf ball retriever and retractable sand rake

Also Published As

Publication number Publication date
WO2022012717A1 (fr) 2022-01-20
WO2022012716A4 (fr) 2022-03-10
DE112021003724A5 (de) 2023-05-11

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