EP1818142A2 - Poignée pour outils manuels à têtes interchangeables - Google Patents

Poignée pour outils manuels à têtes interchangeables Download PDF

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Publication number
EP1818142A2
EP1818142A2 EP07250498A EP07250498A EP1818142A2 EP 1818142 A2 EP1818142 A2 EP 1818142A2 EP 07250498 A EP07250498 A EP 07250498A EP 07250498 A EP07250498 A EP 07250498A EP 1818142 A2 EP1818142 A2 EP 1818142A2
Authority
EP
European Patent Office
Prior art keywords
tube
immobiliser
handle
locking element
pushbutton
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07250498A
Other languages
German (de)
English (en)
Other versions
EP1818142A3 (fr
Inventor
Egoitz Aramberri Aresti
Asier De Castillo Apodaca
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Herramientas Eurotools SA
Original Assignee
Herramientas Eurotools SA
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 Herramientas Eurotools SA filed Critical Herramientas Eurotools SA
Publication of EP1818142A2 publication Critical patent/EP1818142A2/fr
Publication of EP1818142A3 publication Critical patent/EP1818142A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/18—Locking and securing devices comprising catches or pawls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements

Definitions

  • This invention relates to a handle which is designed especially to be coupled to any of a plurality of hand tool heads intended for different applications (DIY, gardening, etc.).
  • tubular handle is wholly cylindrical in shape, which on the one hand suffers from a lack of quality required for an ergonomic grip, and on the other makes it possible for the adverse effect of the torsion of the tubular handle to act upon the said internal means of rapid fixing of the rod of the interchangeable head, which reduce the efficiency of its work and progressively damages the product since the clearances and movements that take place between the tubular handle and its said internal means of rapid fixing steadily increase.
  • Solutions are also known in which the element which is designed to retain the assembly of the flat rod is a kind of longitudinal strip or leaf spring of considerable width which extends from a point close to the tip of the tubular handle to the location of a pushbutton, which is situated in the position furthest from this tip of the tubular handle; this type of solution calls into question the firmness and robustness of the fixing, including its reliability over time, since the considerable width of the strip causes it to lose its elastic properties over time.
  • the essential object of this invention is to provide a handle for hand tools with interchangeable heads which is characterised in that it consists of a tube which, throughout its width, has the cross-section of an ergonomic handle which is defined by a curved triangle which has one of its vertices in the lower position, and which is delimited by curvo-convex sides which are connected by rounded edges, which tube, in its front opening, receives inside it a locking element whose cross-section is identical to that of the said tube, and is adjusted by sliding it relative to the interior of the same.
  • this tube In addition to the channel for inserting the flat rod and the smooth shank of the interchangeable head, this tube also has, on its upper face, a vertical blind cavity which, on its front wall, communicates with the said insertion channel, and in which a locking piece, or immobiliser, slides vertically and is mounted against a spring which retains it in an upper position, in which a suitable tooth is housed across a window of the said flat rod of the interchangeable head, which immobiliser is capable of adopting a lower position, against the said spring, in which the said tooth remains outside the said window of the flat rod, and which immobiliser faces at the top an opening of the said tube, enabling it, with sliding peripheral adjustment, to project from a pushbutton provided with coupling means which, without the insertion of any elastic means, operate in conjunction with other existing means on the upper face of the said immobiliser and possibly with the aid of the actual upper wall of the tube.
  • This proposed configuration provides a grip of ergonomic quality that is far superior to that of a cylindrical handle, because on the one hand it adapts itself better to the shape of a clenched fist and on the other because its polygonal contour favours a firmer, more secure grip which prevents the handle from turning in the hand, unlike the grip of a cylindrical handle; all this favours comfortable, efficient use of the tool whilst at the same time reducing the possibility of the appearance of blisters on the skin caused by erosion.
  • this cross-sectional shape provides the most favourable axis of inertia for applications in which the tool is used as a hammer.
  • the present invention proposes two embodiments of the coupling means of the pushbutton.
  • One preferable solution is that in which the pushbutton is provided with a rear flange and a front flange so that the rear flange forms a rear claw which, due to elastic displacement, is capable of projecting from the rear edge of the said opening of the tube and hooking under a counter-claw formed on the upper face of the said immobiliser, whilst at the same time the front flange forms a front shoulder which is seated in a step cut into the front edge of the upper face of the said immobiliser so that the vertical wall of this step bears against the rear side of the said front flange of the pushbutton.
  • This solution enables the pushbutton to be fitted from the outside of the tube once the locking element has been inserted in it until it occupies its operating position. As may be clearly seen in the graphic representation attached, this is achieved by a simple operation consisting in inserting the front flange between the immobiliser and the wall of the tube, then by simple rotation producing an elastic displacement which causes the claw of the rear flange of the pushbutton to hook under the counter-claw of the immobiliser.
  • This solution is suitable when it is intended to produce a finer handle, since the inner half of the tube is not subject to the requirement that the pushbutton must be installed inside this tube together with the locking element.
  • the other embodiment of the coupling means of the pushbutton consists in bending its front and rear walls at its lower end to form two lugs, front and rear, which are identical to one another and are seated in a completely flat upper face of the said immobiliser.
  • This design requires the pushbutton to be located inside the tube together with the locking element, this pushbutton having a very simple configuration.
  • this invention has the particular feature that, relative to the position of the rod coupled to the handle, there is an embellisher having the same cross-sectional shape as the said tube and locking element in the part of this flat rod adjacent to the front of the locking element inserted in the tube.
  • This solution has the advantage of intuitively indicating to the user the correct position for inserting the rod of the head of the tool in the tube.
  • this preferred handle comprises a tube (1) which, throughout its width, has a cross-section for an ergonomic grip defined by a curved triangle which has one of its vertices in the lower position and is delimited by curvo-convex sides (2), which are connected by rounded edges (3), which tube (1), in its front opening, receives inside it a locking element (4) whose cross-section is the same as that of the said tube (1) and which is adjusted by sliding it with respect to the inside of the same, and which tube (1), in addition to the channel (5) for inserting the flat rod (6) and smooth shank of the interchangeable head, has on its upper face a vertical blind cavity (7) which, on its front wall, communicates with the said insertion channel (5), and in which a locking piece, or immobiliser (8) sides vertically, which immobiliser is mounted against a spring (9) which causes the immobiliser to occupy an upper position in which a suitable tooth (10) is housed across a window (11) of the said flat rod (6) of the interchangeable head, which
  • FIGs 1 to 5 illustrate an embodiment relating to the coupling means of the pushbutton (13). It consists in that this pushbutton (13) is provided with a rear flange (14) and a front flange (15) so that the rear flange (14) forms a rear claw (16) which, by elastic displacement, is capable of projecting from the rear edge of the said opening (12) of the tube (1) and hook under a counter-claw (17) which is formed in the upper face of the said immobiliser (8), whilst at the same time the front flange (15) forms a front shoulder (18) which is seated in a step (19) cut into the rear edge of the upper face of this immobiliser (8) so that the vertical wall of this step (19) bears against the rear side of the side front flange (15) of the pushbutton (13).
  • the thickness of the tube (1) with this solution is not conditional upon the pushbutton being inserted through one of the openings of the tube (1) together with the remaining coupling means. This thickness may therefore be reduced to provide an application advantage in cases where it is necessary for the handle to be finer than can be achieved by other means.
  • FIG. 6 to 9 Another embodiment is that illustrated in Figures 6 to 9, where the said coupling means of the pushbutton (13) consist in that its front and rear walls, at their lower end, are bent to form two lugs, a front (20) and a rear lug (21), which are identical to one another and which are seated in a completely flat upper face of the said immobiliser (8).
  • the pushbutton is mounted with the remaining coupling means before the whole assembly is inserted inside the tube (1);
  • the configuration of the pushbutton (13) is the simplest configuration, with two identical flanges (20, 21), which simply rest on a flat upper face of the immobiliser (8).
  • the said tooth (10) of the immobiliser (8) has a cylindrical contour which, with a recess adjustment, operates with respect to an opening (22) in the said flat rod (6), relative to the operating coupling position of this flat rod (6) in the locking element (4) whose cylindrical contour has a front bevel (23) which faces the rear opening of the said channel (5) of this locking element (4).
  • the immobiliser (8) occupies its upper position imposed by the spring (9), in which the front bevel (23) faces channel (5).
  • the flat rod (6) is inserted through this channel (5) it acts on the front bevel (23), causing the immobiliser (8) to be lowered against the spring (9).
  • this opening (22) is functionally identical to the window (11) referred to above.
  • the reason for assigning different numerical references is that the window (11) operates according to a general concept which is independent of its specific shape (it need not necessarily be cylindrical in shape), whilst the opening (22) does have a particular shape, cylindrical.
  • this locking element (4) is extended peripherally at the front by means of a projection (24), as seen in Figures 1 and 6.
  • this locking element (4) has a drilled hole (25) in which it is able to receive a fastening element (26) established across a hole (27) made in the wall of the tube (1), as shown in Figures 2 and 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP07250498A 2006-02-08 2007-02-07 Poignée pour outils manuels à têtes interchangeables Withdrawn EP1818142A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200600287A ES2301332B1 (es) 2006-02-08 2006-02-08 Mango de herramientas manuales de cabezas intercambiables.

Publications (2)

Publication Number Publication Date
EP1818142A2 true EP1818142A2 (fr) 2007-08-15
EP1818142A3 EP1818142A3 (fr) 2010-01-13

Family

ID=38006808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07250498A Withdrawn EP1818142A3 (fr) 2006-02-08 2007-02-07 Poignée pour outils manuels à têtes interchangeables

Country Status (2)

Country Link
EP (1) EP1818142A3 (fr)
ES (1) ES2301332B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272634A4 (fr) * 2008-04-11 2016-10-12 Bellota Herramientas Sa Dispositif de raccordement entre le manche et la tête d'un outil manuel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057916A2 (fr) 1981-02-06 1982-08-18 Wolf-Geräte GmbH Dispositif de fixation des manches aux ustensiles, en particulier ustensiles domestiques et de jardin
DE3519544A1 (de) 1985-05-31 1986-12-04 Rux GmbH, 3013 Barsinghausen Vorrichtung zur schnellen auswechselung insbes. von gartengeraeten an einer handhabe
US5168693A (en) 1990-03-01 1992-12-08 Fiskars Zinck-Lysbro/A/S Coupling means for a gardening tool
US6055733A (en) 1999-05-03 2000-05-02 Chen; Yih-Long Extensible cutlery device
US6311368B1 (en) 1996-07-29 2001-11-06 Carl Freudenberg Handle for household utensils

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2617622C2 (de) * 1976-04-22 1982-09-23 Gardena Kress + Kastner Gmbh, 7900 Ulm Kupplungsnippel zur Verbindung eines Arbeitsgerätes mit einem Stiel
DE3130703C2 (de) * 1981-08-03 1983-10-13 Wolf-Geräte GmbH, 5240 Betzdorf Stielbefestigungskupplung, insbesondere für Haus- und Gartengeräte
DE3246887C2 (de) * 1982-02-04 1984-01-05 Wolf-Geräte GmbH, 5240 Betzdorf Stielbefestigungskupplung, insbesondere für Haus- und Gartengeräte
US5515574A (en) * 1994-09-01 1996-05-14 Sparta Brush Co., Inc. Noncylindrical telescoping handle
US6158089A (en) * 1999-03-10 2000-12-12 Thomas Monahan Company Telescoping handle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057916A2 (fr) 1981-02-06 1982-08-18 Wolf-Geräte GmbH Dispositif de fixation des manches aux ustensiles, en particulier ustensiles domestiques et de jardin
DE3519544A1 (de) 1985-05-31 1986-12-04 Rux GmbH, 3013 Barsinghausen Vorrichtung zur schnellen auswechselung insbes. von gartengeraeten an einer handhabe
US5168693A (en) 1990-03-01 1992-12-08 Fiskars Zinck-Lysbro/A/S Coupling means for a gardening tool
US6311368B1 (en) 1996-07-29 2001-11-06 Carl Freudenberg Handle for household utensils
US6055733A (en) 1999-05-03 2000-05-02 Chen; Yih-Long Extensible cutlery device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272634A4 (fr) * 2008-04-11 2016-10-12 Bellota Herramientas Sa Dispositif de raccordement entre le manche et la tête d'un outil manuel

Also Published As

Publication number Publication date
ES2301332A1 (es) 2008-06-16
EP1818142A3 (fr) 2010-01-13
ES2301332B1 (es) 2009-04-01

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