EP2815852A1 - Teleskopgriff mit ergonomischer Bedienung für ein Handwerkszeug, und entsprechendes Handwerkszeug - Google Patents

Teleskopgriff mit ergonomischer Bedienung für ein Handwerkszeug, und entsprechendes Handwerkszeug Download PDF

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Publication number
EP2815852A1
EP2815852A1 EP13173299.2A EP13173299A EP2815852A1 EP 2815852 A1 EP2815852 A1 EP 2815852A1 EP 13173299 A EP13173299 A EP 13173299A EP 2815852 A1 EP2815852 A1 EP 2815852A1
Authority
EP
European Patent Office
Prior art keywords
handle
bar
indexing
section
control member
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Withdrawn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
EP13173299.2A
Other languages
English (en)
French (fr)
Inventor
Philippe Praudel
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.)
Stanley Works Europe GmbH
Original Assignee
Stanley Works Europe 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 Stanley Works Europe GmbH filed Critical Stanley Works Europe GmbH
Priority to EP13173299.2A priority Critical patent/EP2815852A1/de
Publication of EP2815852A1 publication Critical patent/EP2815852A1/de
Withdrawn legal-status Critical Current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
    • B25G1/00—Handle constructions
    • B25G1/04—Handle constructions telescopic; extensible; sectional
    • B25G1/043—Handle constructions telescopic; extensible; sectional for screwdrivers, wrenches or spanners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/06—Handle constructions reversible or adjustable for position
    • B25G1/063—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners

Definitions

  • the present invention relates to a telescopic handle for a hand tool, the handle being of the type comprising: a main bar connected or connectable at its distal end to a tool head, the bar extending along a longitudinal axis X and its current portion being provided with a longitudinal groove and a plurality of indexing housings on its outer surface; a hollow outer body slidably receiving the bar between a first indexed position in which the handle is locked in the retracted position and a second position in which the handle is locked in the extended position, said body having, near its proximal end, a zone gripping and, near its distal end, an indexing member fully contained within the body and adapted to cooperate with the housing; and a control member cooperating with the indexing member and adapted to deactivate the locking of the handle.
  • a tubular outer member has a proximal end with a grip zone.
  • An inner room slides inside the outer room.
  • a releasable indexing device maintains in indexed position the inner and outer parts relative to each other.
  • the device comprises a ring disposed at the distal end of the outer piece.
  • the ring is movable in sliding against a spring. It acts on at least one ball adapted to cooperate with a longitudinal groove and a plurality of indexing housings disposed on the outer surface of the inner part.
  • the arrangement of the ring facing the ball is away from the hand that holds the gripping area and does not constitute an ergonomic control.
  • the object of the invention is to provide a telescopic handle with ergonomic indexing control.
  • the invention also relates to a hand tool comprising a tool head connected to the distal end of a handle characterized in that the handle is a telescopic handle of the aforementioned type.
  • the hand tool 1 shown in the drawings of figures 1 and 2 comprises a telescopic handle 2 which comprises a main bar 3 which extends along a longitudinal axis X, and at the distal end of which is connected a tool head 4.
  • This is integral with the bar 3, and extends along a substantially transverse axis, preferably along the axis Z.
  • the head is that of a ratchet having a driven outer portion 6 in the form of a square male adapted to cooperate with a fastening element (not shown) or with a clamping sleeve (not shown) for a fastener.
  • the head 4 can be pivotally articulated to the bar 3 along the Y axis.
  • the head 4 can be pivotally articulated to the bar 3 along the Y axis and / or the head 4 can be removable from the bar 3.
  • the handle 2 also comprises a hollow outer body 8 elongated along the X axis and slidably receiving the bar 3 in the direction of said axis.
  • the body 8 comprises a slot 9 ( figure 3 ) extending longitudinally about two-thirds of its length from its proximal end.
  • the proximal portion of the body 2 comprises a gripping area 10 comprising a rigid sleeve 10A reported on which is molded a soft skin 10B improving grip.
  • a pin 11 holds the sleeve integral with the body 8.
  • a control member 12, bell-shaped, is disposed in the extension of the grip zone 10 immediately adjacent thereto towards the tool head 4. It comprises an annular portion 13 internal ( figure 3 ) which surrounds the body 8 and which is slidable along the axis X relative thereto.
  • An external engagement means 14 in the form of an outer annular skirt is integral with the annular portion 13. The skirt 14 partially covers the gripping zone 10, in particular the skin 10B, in order to protect their interface from dust.
  • a guide block 15 extends radially internally the annular portion 13. It extends inside the body 8 and slidably cooperates with the slot 9.
  • a link arm 16 extends from the block 15 longitudinally in the direction of of the tool head 4.
  • the arm 16 is disposed inside the body 8 and its distal portion 17 ( Figure 4A ) is positioned at a distance and in front of the control member 12 in the direction of the head 4.
  • a thin support connection plate 18 is connected to the distal portion 17 of the connecting arm 16 and extends towards the tool head 4. The function of the blade 18 will be described later
  • the block 15 and the arm 16 may be of material with the annular portion 13 if the control member 12 is integrally molded in a semirigid material. Preferably, the block 15 and the arm 16 are separated from the annular portion 13 to simplify assembly.
  • the blade 18, preferably metal, is attached to the distal portion 17 of the arm 16 which it is secured.
  • the sheath 10A comprises an internal counterbore 19 delimited by a shoulder 20.
  • the annular portion 13 is engaged in the counterbore 19 and slides inside thereof against a compression spring 21, one end of which is bearing against the shoulder 20 and whose other end bears against said annular portion of the member 12.
  • the spring 21 urges the control member 12 and the guide block 15 to a position in which they tend to s move away from the gripping zone 10 towards the tool head 4.
  • the outer surface of the bar 3 comprises, in its current part, a groove 22 longitudinal. It is delimited by a front end 23 and opens at the free end of the bar 3 opposite to the tool head 4.
  • the groove 22 comprises, longitudinally and at regular intervals, a plurality of indexing housings 26, recessed with respect to the bottom of the groove 22, and whose function will be described later.
  • the cross section of the main bar 3 corresponds to a circular section truncated by two substantially parallel flats and comprises a relatively large dimension along the Y axis and a relatively small dimension along the Z axis. transversal is constant in size and shape; it is symmetrical along the two orthogonal axes Y and Z ( figure 3 ).
  • the bar 3 is designed to withstand the bending stresses generated on the cross section when a torque is applied to the handle 2 along the Z axis, without its mass is excessive.
  • the body 8 is in the form of a thin-walled tube, obtained by extrusion from a round tube. Its final cross section is partially circular, the body 8 further comprising a substantially flat bottom face ( Figure 3 ).
  • the thickness of the tube between 1.2 and 1.5 mm, makes it possible to obtain a resistant and light body.
  • the inner surface of the body 8 is calibrated and delimited, in cross section, to allow a functional play of sliding between the bar 3 and the body 8.
  • the body 8 has a constant cross section in size and shape. The latter is symmetrical only along the Z axis ( figure 3 ).
  • the cross-section of the outer surface of the bar 3 is conjugate, with the clearance, of a portion of the cross section of the inner surface of the hollow body 8, the other part defining a complementary section 28 ( figure 3 ).
  • the bar 3 is provided with two pairs of T-shaped rubber seals 3A, 3B.
  • the caps of each seal 3A, 3B are in a partially circular groove 3A ', 3B' in the circular section of the bar 3 between the two flats.
  • the bars of each pair of joints 3A, 3B are fixed in a transverse hole 3A ", 3B" which passes through the bar 3 between the two flats ( figure 5 ).
  • the transverse holes 3A ", 3B” are oriented parallel to the Y axis.
  • the other transverse hole 3B" is towards the beginning of the groove 22 longitudinal ( figure 2 ).
  • the caps of the rubber seals 3A, 3B bear against the inside of the body 8.
  • the bar 3 slides inside the body 8 with a minimum clearance along the Z axis.
  • each of the plates 32A, 32B has an outer radial projection 33A, 33B which engages a complementary bore 30 formed in the thickness of the tubular body 8.
  • the plates 32A, 32B are covered by a cap 8A which surrounds one end of the body 8 and the bar 3.
  • the lower plate 32A acts as a sliding surface relative to the bar 3 by reducing the play in rotation relative to the axis X between the bar 3 and the body 8.
  • the top plate 32B has a 32BB face, 32BC at each end.
  • the two faces 32BB, 32BC act as sliding surfaces with respect to the bar 3 while reducing the clearance in rotation with respect to the X axis between the bar 3 and the body 8.
  • the upper plate 32B is provided with a blade 32BD spring bearing against the bar 3 in the direction of the lower plate 32A to reduce play functional sliding between the barrau 3 and the body 8.
  • the lower plate 32A comprises a rear lower recess 34 opening opposite the end 17 of the arm 16. It also comprises an upper longitudinal rib 35 made of material and cross section conjugate to that of the groove 22, with clearance. It also comprises a transverse bore 36 oriented along the Z axis and opening into the recess 34 and the rib 35.
  • the lower plate 32A acts as a support means for an indexing member 38 in the form of a ball. The latter is housed in the bore 36 and is adapted to engage one of the plurality of indexing housings 26 in a first configuration ( Figure 4A ) or, in a second configuration ( Figure 4B ), is adapted to be retracted into the bore 36 without engaging a housing 26.
  • the support connection blade 18 is disposed in the recess 34 of the lower plate 32A. It is movable in sliding along the axis X relative to the body 8 and remotely controlled by the control member 12.
  • the blade 18 is disposed between the ball 38 and the body 8, and closes the hole 36 while forcing said ball to engage an indexing housing 26.
  • the ball 38 blocks the body 8 in position. relative to the bar 3 such that any relative sliding maneuver between the bar 3 and the body 8 is prohibited.
  • the blade 18 is sufficiently offset longitudinally relative to the ball 38 to release the bore 36.
  • the ball 38 is free to disengage the indexing housing 26 and to take a retracted position in the bore 36.
  • the ball 38 releases the movement of the body 8 relative to the bar 3 so that a relative sliding maneuver between the bar 3 and the body 8 is allowed.
  • the tool handle is assumed in an extended position ( figure 2 ) in the first configuration.
  • the ball 38 is engaged in one of the indexing housings 26 ( Figure 4A ).
  • the user grasps the gripping zone 10 with one hand and the tool head 4 with the other hand.
  • the control member 12 is arranged relative to the hand holding the gripping zone 10 in such a way that the thumb and / or index of this hand is / are able to grip the control member 12
  • the user exerts a force on the member 12 against the spring 21, represented by the arrow F of the Figure 4B this effort tends to bring the member 12 of the sheath 10A.
  • the ball 38 is free to move transversely a sufficient distance, represented by the arrow d2 of the Figure 4B , in order to allow the ball 38 to disengage from the housing 26.
  • the user thus deactivates the locking and acts on the body 3 to adjust the length of the handle 2 in a longitudinal sliding movement represented by the arrow d3 of the Figure 4B towards a retracted position ( figure 1 ) or partially retracted from the handle 2.
  • the groove 22 comprises a transverse profile complementary to that of the rib 35, so that they are able to cooperate.
  • the rib 35 makes it possible to improve the guiding of the ball 38 in a housing 26.
  • the sheath can be removed, the control member being adjacent to a knurled grip zone of the body.
  • a ring maintained in a groove integral with the body replaces the bearing shoulder for the spring.
  • the invention is advantageous in that any length of telescopic handle is possible with a simple modification of the length of the link arm.
  • a tool equipped with such a handle has an advantage of ergonomics and comfort without diminishing the characteristics of resistance.
  • the invention applies to hand tools with a fixed or adjustable head relative to the handle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food-Manufacturing Devices (AREA)
EP13173299.2A 2013-06-21 2013-06-21 Teleskopgriff mit ergonomischer Bedienung für ein Handwerkszeug, und entsprechendes Handwerkszeug Withdrawn EP2815852A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13173299.2A EP2815852A1 (de) 2013-06-21 2013-06-21 Teleskopgriff mit ergonomischer Bedienung für ein Handwerkszeug, und entsprechendes Handwerkszeug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13173299.2A EP2815852A1 (de) 2013-06-21 2013-06-21 Teleskopgriff mit ergonomischer Bedienung für ein Handwerkszeug, und entsprechendes Handwerkszeug

Publications (1)

Publication Number Publication Date
EP2815852A1 true EP2815852A1 (de) 2014-12-24

Family

ID=48700339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13173299.2A Withdrawn EP2815852A1 (de) 2013-06-21 2013-06-21 Teleskopgriff mit ergonomischer Bedienung für ein Handwerkszeug, und entsprechendes Handwerkszeug

Country Status (1)

Country Link
EP (1) EP2815852A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770073A (en) * 1987-02-20 1988-09-13 Bernhard Palm Socket wrench extension
US5729865A (en) * 1996-03-07 1998-03-24 Bestt Rollr, Inc. Lock for telescoping extension poles
US6029549A (en) * 1996-10-09 2000-02-29 David Baker, Inc. Screwdriver with multi-position shank
US20070186730A1 (en) * 2006-02-16 2007-08-16 Chia-Yu Chen Extensible handle for a hand tool
US7677140B2 (en) 2005-12-14 2010-03-16 Ricky Eugene Hull Tool having a telescoping handle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770073A (en) * 1987-02-20 1988-09-13 Bernhard Palm Socket wrench extension
US5729865A (en) * 1996-03-07 1998-03-24 Bestt Rollr, Inc. Lock for telescoping extension poles
US6029549A (en) * 1996-10-09 2000-02-29 David Baker, Inc. Screwdriver with multi-position shank
US7677140B2 (en) 2005-12-14 2010-03-16 Ricky Eugene Hull Tool having a telescoping handle
US20070186730A1 (en) * 2006-02-16 2007-08-16 Chia-Yu Chen Extensible handle for a hand tool

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