EP2756928B1 - Outil portable avec poignée ergonomique - Google Patents

Outil portable avec poignée ergonomique Download PDF

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Publication number
EP2756928B1
EP2756928B1 EP14151084.2A EP14151084A EP2756928B1 EP 2756928 B1 EP2756928 B1 EP 2756928B1 EP 14151084 A EP14151084 A EP 14151084A EP 2756928 B1 EP2756928 B1 EP 2756928B1
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EP
European Patent Office
Prior art keywords
axis
hand
handle
region
finger
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.)
Active
Application number
EP14151084.2A
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German (de)
English (en)
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EP2756928A2 (fr
EP2756928A3 (fr
Inventor
Hans Bargen
Markus Leupert
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2756928A2 publication Critical patent/EP2756928A2/fr
Publication of EP2756928A3 publication Critical patent/EP2756928A3/fr
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Publication of EP2756928B1 publication Critical patent/EP2756928B1/fr
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Classifications

    • 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
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip

Definitions

  • the present invention relates to a hand tool with a tool housing, on which an ergonomic handle for a provided with a thumb, an index finger, a middle finger, a ring finger and a small finger hand of a user is formed, wherein on the handle, a first area for the index finger and the thumb, a second area for the middle finger, a third area for the ring finger, and a fourth area for the little finger, and wherein the second area has an at least approximately oval cross section with a first major axis and a first minor axis, the third area an at least approximately oval cross-section having a second major axis and a second minor axis and the fourth region having an at least approximately oval cross-section with a third major axis and a third minor axis.
  • the US Pat. No. 7,284,300 B1 discloses a handle for a user's hand provided with a thumb, forefinger, middle finger, ring finger, and small finger.
  • the tool housing is provided with an ergonomic handle on which a first area for an index finger and thumb, a second area for a middle finger, a third area for a ring finger and a fourth area for a little finger of a hand User is provided.
  • the first, second, third and fourth regions each have an oval cross-section with associated main and minor axes, the third region having the longest major axis and the fourth region having the longest minor axis.
  • a disadvantage of the prior art is that the user's hand can tire in spite of the ergonomic handle during a longer, in particular uninterrupted operation of such a hand tool, so that the handling of the hand tool after a corresponding period of time each felt as uncomfortable. Furthermore, by such fatigue, a reduction of a desired working precision may occur.
  • An object of the invention is therefore to provide a new hand tool with an ergonomic handle, in which even at a longer, especially uninterrupted operation occurring fatigue of the hand of a user can be at least reduced.
  • a hand tool with a tool housing on which an ergonomic handle for a provided with a thumb, an index finger, a middle finger, a ring finger and a small finger hand of a user is formed.
  • a first area for the index finger and the thumb On the handle, a first area for the index finger and the thumb, a second area for the middle finger, a third area for the ring finger and a fourth area for the little finger are provided.
  • the second region has an at least approximately oval cross section with a first main axis and a first minor axis
  • the third region has an at least approximately oval cross section with a second major axis and a second minor axis
  • the fourth region has an at least approximately oval cross section with a third major axis and one third minor axis.
  • the first major axis or the third major axis is longer than the second major axis and the first minor axis is shorter than the second and third minor axis.
  • the invention thus makes it possible to provide a hand-held power tool with an ergonomic handle, in which by an improved adaptation of the handle to the anatomy of the hand of a user a largely fatigue-free and comfortable operation of the power tool is made possible.
  • the third main axis and the third minor axis are at least approximately the same length.
  • the tool housing has a housing longitudinal axis which is arranged at a predetermined angle transversely to a handle longitudinal axis associated with the handle, wherein the first main axis is longer than the second and third main axis.
  • the invention thus makes it possible to provide a hand tool with a so-called “middle handle", which is designed in the manner of an ergonomic handle and has an improved adaptation to the anatomy of the hand of a user to allow a largely fatigue-free and comfortable operation of the power tool.
  • the first major axis is at least 48 mm and the second major axis at least 46 mm long.
  • the second major axis is preferably longer than the third major axis.
  • the area associated with the ring finger of the user's hand can be made longer in a simple manner than the area associated with the little finger.
  • the third major axis is at least 43 mm long.
  • the second minor axis is preferably shorter than the third minor axis.
  • an at least approximately equal angular range of the areas of the ergonomic center grip assigned to the ring and small fingers can be encompassed with these two fingers.
  • the first minor axis is a maximum of 38 mm
  • the second minor axis a maximum of 40 mm
  • the third minor axis at least 43 mm long.
  • the tool housing and the handle have a common longitudinal axis, wherein the third major axis is longer than the first and second major axis.
  • the invention thus makes it possible to provide a hand tool with a so-called “longitudinal handle", which is designed in the manner of an ergonomic handle and has an improved adaptation to the anatomy of the hand of a user to allow a largely fatigue-free and comfortable operation of the power tool.
  • the third major axis is preferably at least 40.6 mm and the second major axis at least 40.4 mm long.
  • a slimmer compared to the center handle structure of the ergonomic longitudinal handle are made possible to provide a total of slimmer and thus suitable for use in work areas hand tool in which a designed with a middle handle hand tool difficult or impossible to use is.
  • the second major axis is longer than the first major axis.
  • a secure gripping the ergonomic longitudinal handle can be made possible in particular with middle and ring finger, whereby an improved guidance of the power tool can be achieved in their operation.
  • the first major axis is preferably a maximum of 40.3 mm long.
  • the second minor axis is shorter than the third minor axis.
  • the first minor axis is a maximum of 37 mm, the second minor axis a maximum of 39 mm and the third minor axis at least 40 mm long.
  • a tool housing for a hand tool on which an ergonomic handle for a user's hand provided with a thumb, forefinger, middle finger, ring finger and little finger is formed, wherein on the handle a first For the index finger and the thumb, a second area for the middle finger, a third area for the ring finger and a fourth area for the little finger is provided.
  • the second region has an at least approximately oval cross section with a first main axis and a first minor axis
  • the third region has an at least approximately oval cross section with a second major axis and a second minor axis
  • the fourth region has an at least approximately oval cross section with a third major axis and one third minor axis.
  • the first major axis or the third major axis is longer than the second major axis and the first minor axis is shorter than the second and third minor axis.
  • Fig. 1 1 shows a hand tool machine 100 provided with a tool holder 120 and an optional working field illumination 170, which has a tool housing 110 with a handle 150.
  • the handheld power tool 100 can be actuated eg via a manual switch 130, ie switched on and off, and has an optional direction of rotation switch 140, via which preferably a respective direction of rotation of the power tool 100 can be adjusted.
  • the tool holder 120 is preferably designed in the manner of a bit holder, ie for receiving a trained in the manner of a screwdriver bits insert tool which is inserted in the direction of the power tool 100 in the tool holder 120, as indicated by an arrow 105.
  • a screwdriver bit which is eg of the so-called HEX type, is sufficient known in the art, so that here for the sake of scarcity of the description is dispensed with a detailed description.
  • the present invention is not limited to the use of HEX screwdriver bits, but also other application tools depending on a particular selected configuration of the tool holder 120, such as HEX drill or so-called SDS Quick insert tools, application can.
  • the structure and operation of a suitable tool holder are well known to those skilled in the art, so that here for the sake of conciseness of the description to a detailed description of the tool holder 120 is omitted.
  • the power tool 100 for power supply independent of the mains is mechanically and electrically connected to a battery pack 190.
  • the battery pack 190 may be designed in the manner of a replaceable battery and may be mechanically and electrically connected to an associated interface 180 of the handheld power tool 100, or alternatively, for example. as an integral part of the hand tool 100, e.g. be installed in the handle 150.
  • the hand tool 100 is exemplified as a cordless rotary impact wrench. It should be understood, however, that the present invention is not limited to cordless impact wrenches, but rather may be applied to a variety of hand tool machines having a handle corresponding to the handle 150, whether the hand tool is electric, i. network-independent with the battery pack 190 or network-dependent, and / or non-electrically operable.
  • the handheld power tool 100 as such is well known to those skilled in the art and is not the subject of the provisional invention. For this reason, a detailed description of this structure, which includes, for example, an electric drive motor arranged in the tool housing 110, a transmission and an optional striking mechanism, wherein the drive motor may be an electronically commutated drive motor or a brushed commutator motor, is omitted for the sake of brevity.
  • the tool housing 110 has a housing longitudinal axis 112 which is arranged at a predetermined angle 116 transversely to a handle longitudinal axis 114 assigned to the handle 150.
  • the predetermined angle 116 is preferably greater than 30 °, more preferably at least selected from a range of 45 ° to 90 °, and is for example about 72.5 °. This is e.g. with a cordless screwdriver the case.
  • the tool housing 110 is for example approximately approximately T-shaped, wherein the handle 150 is arranged approximately centrally on the housing longitudinal axis 112 having portion of the tool housing 110. Therefore, the handle 150 will hereinafter also be referred to as a "middle handle". It should be noted, however, that this approximately central arrangement of the handle 150 has only exemplary character and is not to be understood as limiting the invention. Rather, the handle 150 also left or right - in Fig. 1 - To which the housing longitudinal axis 112 having portion of the tool housing 110 may be arranged.
  • the center handle 150 is formed in the manner of an ergonomic handle for a user's thumb, forefinger, middle finger, ring finger, and small finger.
  • the middle handle 150 is divided into four areas: a first area 152 for the index finger and the thumb, a second area 154 for the middle finger, a third area 156 for the ring finger and a fourth area 158 for the little finger.
  • At least the second, third and fourth regions 154, 156 and 158 have an at least approximately oval cross-section.
  • the second region 154 has an at least approximately oval cross section 162
  • the third region 156 has an at least approximately oval cross section 164
  • the fourth region 158 has an at least approximately oval cross section 166.
  • These oval cross sections 162, 164, 166 are parallel to one another and to the housing longitudinal axis 112 arranged.
  • Fig. 2 shows the tool housing 110 of the power tool 100 of Fig. 1 having the housing longitudinal axis 112 and the interface 180.
  • the tool housing 110 has, for example, a first and a second housing shell 204, 206. These first and second housing shell 204, 206 may in the fully assembled hand tool 100 of Fig. 1 be secured to each other in any suitable manner, for example by means of latching, screwing, welding and / or gluing.
  • the tool housing 110 is provided according to a first embodiment with the ergonomic central handle 150 having a handle longitudinal axis 114 and the first, second, third and fourth region 152, 154, 156 and 158, respectively.
  • the second region 154 with the at least approximately oval cross section 162 illustratively has a first major axis 254 and a first minor axis 262.
  • the third region 156 having the at least approximately oval cross section 164 illustratively has a second major axis 256 and a second minor axis 264 with the at least approximately oval cross-section 166 illustratively has a third major axis 258 and a third minor axis 266.
  • the first major axis 254 is at least longer than the second major axis 256 and more preferably longer than the second and third major axes 256 and 258, respectively.
  • the second major axis 256 is preferably longer than the third major axis 258 Main axis 254 at least 48 mm and the second major axis 256 at least 46 mm long.
  • the third major axis 258 is preferably at least 43 mm long.
  • the first minor axis 262 is shorter than the second and third minor axes 264 and 268, respectively.
  • the second minor axis 264 is preferably shorter than the minor minor axis 266, which in turn is preferably at least approximately equal in length to the third major axis 258 Secondary axis 262 maximum 38 mm, the second minor axis 264 maximum 40 mm and the third minor axis 266 at least 43 mm long.
  • Fig. 3 shows a hand tool 300 with a tool housing 310 on which a handle 350 is formed according to a second embodiment.
  • a tool housing 310 To simplify the drawing and the description of the power tool 300, only the tool housing 310 is shown, since the basic structure of the power tool 300 as well as the construction of the power tool 100 of Fig. 1 The person skilled in the art is sufficiently known and is not the subject of the present invention.
  • the tool housing 310 has, for example, a first and a second housing shell 304, 306. These housing shells 304, 306 may be any suitable, in the fully assembled hand tool 300 Be attached to each other way, for example by means of locking, screwing, welding and / or gluing.
  • an interface 180 is provided on the tool housing 310 by way of example, on which a battery pack, for example the battery pack 190 of FIG Fig. 1 , can be mechanically connected to the tool housing 310.
  • the tool housing 310 and the handle 350 according to the second embodiment have a common longitudinal axis 312. This is the case, for example, in hand tool machines with a so-called angular design, for example in an angle wrench. Therefore, the handle 350 will hereinafter also be referred to as a "longitudinal handle”. It should be noted, however, that the description of a common longitudinal axis is merely exemplary in nature and is not to be construed as limiting the invention. Rather, parallel longitudinal axes or up to 30 ° angled longitudinal axes can be used in the tool housing 310.
  • the longitudinal handle 350 is formed in the manner of an ergonomic handle for a user's thumb, forefinger, middle finger, ring finger, and small finger. To this end, the longitudinal handle 350 is divided into four regions: a first index finger and thumb region 322, a second middle finger region 324, a third ring finger region 326, and a fourth finger finger region 328. At least the second, third and fourth regions 324, 326 and 328 have an at least approximately oval cross-section.
  • the second region 324 has an at least approximately oval cross section 342 with a first main axis 352 and a first minor axis 362
  • the third region 326 has an at least approximately oval cross section 344 with a second major axis 354 and a second minor axis 364 and the fourth region 328 one approximately oval cross-section 346 having a third major axis 356 and a third minor axis 366th
  • the third major axis 356 is at least longer than the second major axis 354, and preferably longer than the first and second major axes 352, 354.
  • the second major axis 354 is preferably longer than the first major axis 352.
  • the third major axis 356 at least 40.6 mm and the second major axis 354 at least 40.4 mm long.
  • the first main axis 352 is preferably at most 40.3 mm long.
  • the first minor axis 362 is preferably shorter than the second and third minor axis 364 and 366, respectively.
  • the second minor axis 364 is preferably shorter than the minor minor axis 366.
  • the first secondary axis 362 is at most 37 mm, the secondary secondary axis 364 at most 39 mm and the third minor axis 366 at least 40 mm long.
  • center handle 150 of the tool housing 110 of Fig. 1 and 2 according to the specifications of the longitudinal handle 350 or the longitudinal handle 350 may according to the specifications of the central handle 150 of the tool housing 110 of Fig. 1 and 2 be educated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Scissors And Nippers (AREA)

Claims (15)

  1. Machine-outil à main (100 ; 300) comprenant un boîtier d'outil (110 ; 310) sur lequel est réalisée une poignée ergonomique (150 ; 350) pour une main d'un utilisateur dotée d'un pouce, d'un index, d'un majeur, d'un annulaire et d'un auriculaire, sur la poignée (150 ; 350) étant prévues une première région (152 ; 322) pour l'index et le pouce, une deuxième région (154 ; 324) pour le majeur, une troisième région (156 ; 326) pour l'annulaire et une quatrième région (158 ; 328) pour l'auriculaire, et la deuxième région (154 ; 324) présentant une section transversale (162 ; 342) au moins approximativement ovale avec un premier axe principal (254 ; 352) et un premier axe secondaire (262 ; 362), la troisième région (156 ; 326) présentant une section transversale (164 ; 344) au moins approximativement ovale avec un deuxième axe principal (256 ; 354) et un deuxième axe secondaire (264 ; 364) et la quatrième région (158 ; 328) présentant une section transversale (166 ; 346) au moins approximativement ovale avec un troisième axe principal (258 ; 356) et un troisième axe secondaire (266 ; 366), caractérisée en ce que le premier axe principal (254) ou le troisième axe principal (356) est plus long que le deuxième axe principal (256 ; 354) et en ce que le premier axe secondaire (262 ; 362) est plus court que le deuxième et le troisième axe secondaire (264, 268 ; 364, 366).
  2. Machine-outil à main selon la revendication 1, caractérisée en ce que le troisième axe principal (258) et le troisième axe secondaire (268) ont au moins approximativement la même longueur.
  3. Machine-outil à main selon la revendication 1 ou 2, caractérisée en ce que le boîtier d'outil (110) présente un axe longitudinal de boîtier (112) qui est disposé suivant un angle prédéfini (116) transversalement à un axe longitudinal de poignée (114) associé à la poignée (150), le premier axe principal (254) étant plus long que le deuxième et le troisième axe principal (256, 258).
  4. Machine-outil à main selon la revendication 3, caractérisée en ce que le premier axe principal (254) mesure au moins 48 mm de long et le deuxième axe principal (256) mesure au moins 46 mm de long.
  5. Machine-outil à main selon la revendication 3 ou 4, caractérisée en ce que le deuxième axe principal (256) est plus long que le troisième axe principal (258).
  6. Machine-outil à main selon l'une quelconque des revendications 3 à 5, caractérisée en ce que le troisième axe principal (258) mesure au moins 43 mm de long.
  7. Machine-outil à main selon l'une quelconque des revendications 3 à 6, caractérisée en ce que le deuxième axe secondaire (264) est plus court que le troisième axe secondaire (266).
  8. Machine-outil à main selon l'une quelconque des revendications 3 à 7, caractérisée en ce que le premier axe secondaire (262) mesure au maximum 38 mm de long, le deuxième axe secondaire (264) mesure au maximum 40 mm de long et le troisième axe secondaire (266) mesure au moins 43 mm de long.
  9. Machine-outil à main selon la revendication 1 ou 2, caractérisée en ce que le boîtier d'outil (310) et la poignée (350) présentent un axe longitudinal commun (312), le troisième axe principal (356) étant plus long que le premier et le deuxième axe principal (352, 354).
  10. Machine-outil à main selon la revendication 9, caractérisée en ce que le troisième axe principal (356) mesure au moins 40,6 mm de long et le deuxième axe principal (354) mesure au moins 40,4 mm de long.
  11. Machine-outil à main selon la revendication 9 ou 10, caractérisée en ce que le deuxième axe principal (354) est plus long que le premier axe principal (352).
  12. Machine-outil à main selon l'une quelconque des revendications 9 à 11, caractérisée en ce que le premier axe principal (352) mesure au maximum 40,3 mm de long.
  13. Machine-outil à main selon l'une quelconque des revendications 9 à 12, caractérisée en ce que le deuxième axe secondaire (364) est plus court que le troisième axe secondaire (366).
  14. Machine-outil à main selon l'une quelconque des revendications 9 à 13, caractérisée en ce que le premier axe secondaire (362) mesure au maximum 37 mm de long, le deuxième axe secondaire (364) mesure au maximum 39 mm de long et le troisième axe secondaire (366) mesure au moins 40 mm de long.
  15. Boîtier d'outil (110 ; 310) pour une machine-outil à main (100 ; 300), sur lequel est réalisée une poignée ergonomique (150 ; 350) pour une main d'un utilisateur dotée d'un pouce, d'un index, d'un majeur, d'un annulaire et d'un auriculaire, sur la poignée (150 ; 350) étant prévues une première région (152 ; 322) pour l'index et le pouce, une deuxième région (154 ; 324) pour le majeur, une troisième région (156 ; 326) pour l'annulaire et une quatrième région (158 ; 328) pour l'auriculaire, et la deuxième région (154 ; 324) présentant une section transversale (162 ; 342) au moins approximativement ovale avec un premier axe principal (254 ; 352) et un premier axe secondaire (262 ; 362), la troisième région (156 ; 326) présentant une section transversale (164 ; 344) au moins approximativement ovale avec un deuxième axe principal (256 ; 354) et un deuxième axe secondaire (264 ; 364) et la quatrième région (158 ; 328) présentant une section transversale (166 ; 346) au moins approximativement ovale avec un troisième axe principal (258 ; 356) et un troisième axe secondaire (266 ; 366), caractérisé en ce que le premier axe principal (254) ou le troisième axe principal (356) est plus long que le deuxième axe principal (256 ; 354) et en ce que le premier axe secondaire (262 ; 362) est plus court que le deuxième et le troisième axe secondaire (264, 268 ; 364, 366).
EP14151084.2A 2013-01-16 2014-01-14 Outil portable avec poignée ergonomique Active EP2756928B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013200576.8A DE102013200576A1 (de) 2013-01-16 2013-01-16 Handwerkzeugmaschine mit einem ergonomischen Handgriff

Publications (3)

Publication Number Publication Date
EP2756928A2 EP2756928A2 (fr) 2014-07-23
EP2756928A3 EP2756928A3 (fr) 2017-12-13
EP2756928B1 true EP2756928B1 (fr) 2019-05-01

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EP14151084.2A Active EP2756928B1 (fr) 2013-01-16 2014-01-14 Outil portable avec poignée ergonomique

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US (1) US9539716B2 (fr)
EP (1) EP2756928B1 (fr)
DE (1) DE102013200576A1 (fr)

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US11969347B2 (en) 2020-05-13 2024-04-30 Evalve, Inc. Methods, systems, and devices for deploying an implant
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Also Published As

Publication number Publication date
EP2756928A2 (fr) 2014-07-23
US20140196923A1 (en) 2014-07-17
DE102013200576A1 (de) 2014-07-17
EP2756928A3 (fr) 2017-12-13
US9539716B2 (en) 2017-01-10

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