EP3603899A1 - Interface pour bloc d'accumulateur - Google Patents

Interface pour bloc d'accumulateur Download PDF

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Publication number
EP3603899A1
EP3603899A1 EP19189083.9A EP19189083A EP3603899A1 EP 3603899 A1 EP3603899 A1 EP 3603899A1 EP 19189083 A EP19189083 A EP 19189083A EP 3603899 A1 EP3603899 A1 EP 3603899A1
Authority
EP
European Patent Office
Prior art keywords
battery pack
interface
tread
slide rail
housing part
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Withdrawn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
EP19189083.9A
Other languages
German (de)
English (en)
Inventor
Michael Kukla
Thomas Stenzel
Pham Cong
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
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 Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Publication of EP3603899A1 publication Critical patent/EP3603899A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to an interface for at least one battery pack, the interface being in particular formed on at least one housing part of a machine tool, comprising at least one slide rail which is used for detachable connection to at least one battery pack, the at least one slide rail having at least one running surface on which a corresponding running surface of the at least one battery pack to be connected is able to run along when the battery pack is pushed along the slide rail to establish the connection thereon.
  • Known interfaces usually have a linear guide formed on the machine tool, into which the battery pack is inserted until after it has been fully inserted it hits a stop and is locked in this position with respect to the power tool (the interface for connection to the battery pack is often also used referred to as battery sliding seat), wherein an electrical connection between a battery of the battery pack and a circuit of a consumer of the power tool is simultaneously established.
  • the locking is usually carried out with the aid of a bolt which is movably mounted in a housing of the machine tool against the force of a spring and is brought into engagement with a latching recess in the battery pack by the spring force.
  • an unlocking mechanism which usually comprises a pushbutton located near the guide, which is operated by hand in order to disengage the latch from the latching recess and unlock the battery pack. It can then be moved along the guide into a removal position in which it is no longer in engagement with the electrical device.
  • Another known solution is to provide rollers in the sliding seat, which should enable an improved or smoother movement of the battery pack to be connected in the battery sliding seat.
  • this solution has been well received by users in practice, it entails increased assembly effort and higher manufacturing costs.
  • a soft component is accommodated, in particular glued, in the battery sliding seat in order to compensate for the increased play between the battery pack and the battery sliding seat.
  • a suction device for a motor-driven hand tool, in particular for a rotary hammer is known. Attaching or pushing the dust collecting container into its intended mounting position on the housing body of the suction device is often difficult. Due to the high amount of dirt, also from the outside, because the hand tools are often used in dirty and dusty environments, the components to be joined often tend to jam. In any case, the dust collector can not be easily brought into its intended installation position.
  • the US 2018/0169851 A1 describes a battery pack that can be inserted in the manner of a sliding seat with its guide rails in an interface with side walls and guide rails.
  • the side walls and the corresponding guide rails of the battery pack are of stepped construction. Because of this stepped design, there is a horizontal distance between the side walls and the respective side surfaces of the corresponding guide rails of the battery pack, which distance gradually decreases with increasing insertion movement. Furthermore, recesses are provided on the respective side surfaces of the corresponding guide rails of the battery pack.
  • the DE 10 2006 045 630 A1 also discloses a battery pack that can be inserted in the manner of a sliding seat with its first guide rails in an interface with side walls and second guide rails.
  • the guide rails have interruptions and bridging elements that correspond to one another and allow insertion into one another.
  • the WO 2012/048240 finally has a battery pack that can be inserted with its two guide rails into a groove contour in a receiving section of a straight grinder. Additional recesses are provided in an area in the inner contour of the receiving section.
  • an object of the present invention is to improve the solutions known from the prior art and to allow the battery pack to be pushed on in a simplified and smooth manner.
  • the present invention proposes an interface for a battery pack with the features of claim 1.
  • the interface for at least one battery pack comprises at least one slide rail, which is used for detachable connection to at least one battery pack, the at least one slide rail having at least one running surface along which a corresponding running surface of the at least one battery pack to be connected can run when the battery pack runs along the Slide rail is pushed onto this to establish the connection.
  • the tread has a plurality of recesses, each of which comprises at least one sharp edge running in the direction transverse to the displacement direction of the battery pack to be connected as a transition from the tread to the recess.
  • the interface can comprise one or more parallel slide rails.
  • An embodiment with a central slide rail for example with a T-shaped cross section, is just as conceivable as an embodiment with two slide rails which are essentially L-shaped in cross section.
  • the treads can be arranged on the respectively horizontally extending legs of the T-shaped or L-shaped cross section.
  • the interface can in particular be designed as a battery sliding seat, in which the battery pack (s) to be connected are pushed into the interface or pushed onto the slide rail (s).
  • the recesses on the tread are used to hold particles that could get caught between the sliding surfaces and thus block the sliding movement. Due to the sliding movement when connecting and disconnecting the battery pack or batteries to be connected, they are pushed into the recesses and remain there until the interface is unoccupied and, for example, they can simply fall out of the open recesses or be knocked out.
  • the at least one sharp edge in the transition area from the running surface to the recess improves the cleaning effect during a shifting movement, since these virtually pry the particles out of the running surface of the battery pack to be connected capable, even if they have already dug a bit into the tread of the battery pack, as is often the case in practice due to the vibrations of the machine tool in operation and the usual design of the tread of the battery pack made of plastic.
  • transition areas i.e. sharp transition edges leading to the direction of displacement and trailing in the direction of displacement from the running surface to the respective recess may be provided transversely to the direction of displacement. This further improves the cleaning effect.
  • the recesses of the tread are open laterally in the direction transverse to the direction of displacement of the battery pack to be connected. This enables particularly simple manufacture.
  • the battery pack in the interface includes increased play as well as at least one resilient element which is prestressed in the direction away from the running surface of the interface.
  • this further comprises at least one resilient element which is biased towards the running surface of the interface.
  • the resilient element enables a game compensation or a reduction in the game when the battery pack is inserted, and thus gives the user the impression of a full absorption of the battery pack, since this prevents or significantly reduces rattling of the battery pack due to vibrations of the machine tool.
  • the at least one resilient element can be provided in particular in the area of the interface which is only occupied by the battery pack when it is almost completely inserted. In this way, the insertion movement of the battery pack to be moved is enlarged by the Advantageously supports the game and compensates for the well-known disadvantage of the enlarged game when the battery pack is fully inserted. Furthermore, the specialist receives haptic feedback about whether the battery pack is placed in the right place.
  • the at least one resilient element is pin-shaped.
  • the cross-section of such a pin-shaped resilient element does not of course have to be circular, but can have a wide variety of cross-sectional shapes.
  • the at least one resilient element is formed integrally with the housing part, in particular is cast onto the housing part.
  • the present invention also relates to a housing part for a machine tool comprising an interface with the features described above and a machine tool comprising a housing with an interface with the features described above.
  • the machine tool W can be, for example, an angle grinder, a hammer drill or an impact drill which is battery-operated via its interface 10 and in particular with rechargeable batteries, i.e. Battery packs 30, can be connected.
  • the interface 10 is formed on the half-shell-shaped housing parts G of the machine tool W, in particular molded integrally therewith from plastic.
  • the illustrated interface 10 has two parallel slide rails 20 (only one housing half-shell G with only one slide rail 20 is shown in the sectional view of the figure), which was gripped by a corresponding slide rail 40 of the battery pack 30 becomes.
  • the battery pack 30 has a guide rail 34 with a Guide surface 36 which overlaps the slide rail 20 of the interface 10 with a positive fit and prevents the inserted battery pack 30 from falling out of the interface 10.
  • the tread 12 has a number of recesses 14 which serve to receive foreign particles, such as metal dust, rock particles or the like, which undesirably get between the tread 12 and 32 and can undesirably block the sliding movement of the battery pack 30.
  • the recesses 14 have both leading and trailing sharp edges 18 in the direction of the displacement movement V in the transition region from the tread 12 to the respective recess, which also serve to detach those particles from the corresponding tread 32 of the battery pack 30 that are already in place partially dug into it. These particles are transported into the nearest recess 14 during the further displacement movement.
  • two resilient elements 22, 24 which are pin-shaped. These can be designed to protrude into the interior of only one of the housing half-shells G or to protrude into the interior from both housing half-shells G.
  • the pins 22, 24 can be made long enough that their free end protrudes beyond the parting plane between the two housing half-shells G into the respective other housing half-shell or lies in the parting plane between the two housing half-shells G. In the latter case or in the case of shorter pins (in the event that pins projecting into the interior from both housing half-shells G) are arranged symmetrically to the parting plane of the two housing half-shells G. If the pins are longer are, these can also be arranged offset to one another in the two housing half-shells G.
  • the elastic elements can also be resiliently biased towards the running surface 12 of the interface 10, so that when the battery pack 30 is almost pushed in, they can press against the running surface 32 and thereby compensate for play or reduce the play between the guide surface 36 and reach the corresponding counter surface 16 of the slide rail 20.
  • one elastically resilient element to be resiliently biased towards the tread 12 of the interface 10 and for the other resilient element to be resiliently biased in the direction away from the tread 12 of the interface 10.
  • the elastic elements are arranged in a rear part of the interface, so that they are only able to interact with the corresponding slide rail 40 or the guide rail 34 of the battery pack 30 when the latter is almost completely inserted into the interface.
  • the user receives the haptic feedback (in the form of an increased resistance) that the battery pack 30 is almost completely inserted. Furthermore, the battery pack 30 is thereby held in the interface 10 without play or almost without play, as a result of which an improved quality impression is created by the user.
  • the pins 22, 24 have a circle-like curvature in the region of contact with a corresponding surface of the battery pack 30 (shown on the guide surface 36), which reduces friction and at the same time has one allows gentle start to the surface when pushed open. This has a positive effect in particular on the service life of the pins 22, 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
EP19189083.9A 2018-08-01 2019-07-30 Interface pour bloc d'accumulateur Withdrawn EP3603899A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018118642.8A DE102018118642A1 (de) 2018-08-01 2018-08-01 Schnittstelle für Akkupack

Publications (1)

Publication Number Publication Date
EP3603899A1 true EP3603899A1 (fr) 2020-02-05

Family

ID=67513371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19189083.9A Withdrawn EP3603899A1 (fr) 2018-08-01 2019-07-30 Interface pour bloc d'accumulateur

Country Status (2)

Country Link
EP (1) EP3603899A1 (fr)
DE (1) DE102018118642A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3975327A1 (fr) * 2020-09-23 2022-03-30 Techtronic Cordless GP Réceptacle de bloc-batterie d'outil électrique
US12080906B2 (en) 2021-01-12 2024-09-03 Milwaukee Electric Tool Corporation Power tool battery pack receptacle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553675A (en) * 1994-06-10 1996-09-10 Minnesota Mining And Manufacturing Company Orthopedic surgical device
DE102004025880B3 (de) 2004-05-27 2005-11-03 Metabowerke Gmbh Absaugeinrichtung für Elektrohandwerkzeuggeräte
DE102004044331A1 (de) 2004-09-09 2006-03-16 Robert Bosch Gmbh Vorrichtung zum Verriegeln eines Elektrogeräts mit einem Zubehörteil
DE102006045630A1 (de) 2005-10-11 2007-04-12 Robert Bosch Gmbh Elektrowerkzeugmaschine
EP1923149A2 (fr) 2006-11-17 2008-05-21 Metabowerke GmbH Dispositif d'aspiration pour un outil manuel motorisé
WO2012048240A2 (fr) 2010-10-08 2012-04-12 Milwaukee Electric Tool Corporation Système de retenue de batterie pour un outil électrique
EP3305473A1 (fr) * 2016-10-05 2018-04-11 Metabowerke GmbH Machine-outil à main électrique
US20180169851A1 (en) 2016-12-16 2018-06-21 Milwaukee Electric Tool Corporation Battery pack interface

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553675A (en) * 1994-06-10 1996-09-10 Minnesota Mining And Manufacturing Company Orthopedic surgical device
DE102004025880B3 (de) 2004-05-27 2005-11-03 Metabowerke Gmbh Absaugeinrichtung für Elektrohandwerkzeuggeräte
DE102004044331A1 (de) 2004-09-09 2006-03-16 Robert Bosch Gmbh Vorrichtung zum Verriegeln eines Elektrogeräts mit einem Zubehörteil
DE102006045630A1 (de) 2005-10-11 2007-04-12 Robert Bosch Gmbh Elektrowerkzeugmaschine
EP1923149A2 (fr) 2006-11-17 2008-05-21 Metabowerke GmbH Dispositif d'aspiration pour un outil manuel motorisé
WO2012048240A2 (fr) 2010-10-08 2012-04-12 Milwaukee Electric Tool Corporation Système de retenue de batterie pour un outil électrique
EP3305473A1 (fr) * 2016-10-05 2018-04-11 Metabowerke GmbH Machine-outil à main électrique
US20180169851A1 (en) 2016-12-16 2018-06-21 Milwaukee Electric Tool Corporation Battery pack interface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3975327A1 (fr) * 2020-09-23 2022-03-30 Techtronic Cordless GP Réceptacle de bloc-batterie d'outil électrique
US11728538B2 (en) 2020-09-23 2023-08-15 Techtronic Cordless Gp Power tool battery pack receptacle
US12080906B2 (en) 2021-01-12 2024-09-03 Milwaukee Electric Tool Corporation Power tool battery pack receptacle

Also Published As

Publication number Publication date
DE102018118642A1 (de) 2020-02-06

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