EP3095559A1 - Systeme dynamometrique - Google Patents

Systeme dynamometrique Download PDF

Info

Publication number: EP3095559A1
Authority: EP; European Patent Office
Prior art keywords: unit; ratchet; drive unit; drive; latch
Prior art date: 2015-05-20
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.): Granted

Application number

EP16001054.2A

Other languages

German (de)

English (en)

Other versions

EP3095559B1 (fr

Inventor

Jörg Hohmann

Frank Hohmann

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.)

Individual

Original Assignee

Individual

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.)

2015-05-20

Filing date

2016-05-10

Publication date

2016-11-23

2016-05-10 Application filed by Individual filed Critical Individual

2016-11-23 Publication of EP3095559A1 publication Critical patent/EP3095559A1/fr

2018-09-26 Application granted granted Critical

2018-09-26 Publication of EP3095559B1 publication Critical patent/EP3095559B1/fr

Status Active legal-status Critical Current

2036-05-10 Anticipated expiration legal-status Critical

Links

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
- B25B21/005—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type driven by a radially acting hydraulic or pneumatic piston
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0007—Connections or joints between tool parts
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
- 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
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
- 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 a torque wrench system with a drive unit and a ratchet unit which are detachably assembled to a screw unit, drive unit and ratchet unit are releasably rigidly connected together in the assembled state, the drive unit has a first drive coupling element and the ratchet unit a ratchet and a second drive coupling element which, with the ratchet and in the assembled state of the drive unit and the ratchet unit, is also in driving engagement with the first drive coupling element for driving the ratchet.
Such a torque wrench system is out of the US 2014/0238203 A1 known.
Drive unit and ratchet unit are releasably connected together, since a ratchet unit is designed to tighten only one nut size.
the ratchet unit can be exchanged for adaptation to the respective nut size.
To connect the drive unit with the ratchet unit the ratchet unit on two connecting arms, which are pressed in the assembled state of the drive unit and ratchet unit by spring force in openings in the drive unit.
the ratchet unit further has, in its rear end region in the output direction, a bolt extending transversely to the output direction, which in the assembled state of the drive unit and ratchet unit is encompassed by a semicircular recess in the drive unit.
Drive unit and ratchet unit are releasably rigidly connected together in this way in the assembled state.
the drive coupling element and the semicircular recess of the drive unit lie on the center line and extends the center line of the drive unit through the bolt of the ratchet unit.
the connecting arms can be moved with a handle on the ratchet unit against the spring force from the openings in the drive unit, whereby the ratchet unit can be removed and replaced by another.
the invention has for its object to improve a generic torque wrench system so that the drive unit can be solved by the ratchet unit easier and faster.
the drive unit at least one latch, the unlocking position in which the drive unit and the ratchet unit are detachable from each other, in a locking position in which the drive unit and the ratchet unit in assembled state are rigidly connected to each other, and is movable back, and at least one actuating element, with which the at least one latch is movable from one to the other position, and the ratchet unit has a latch receptacle which engages with the latch in its locking position in locking engagement is the rigid connection of the drive unit with the ratchet unit in its assembled state.
the drive unit and the ratchet unit can be solved very quickly and easily from each other.
the drive unit has at least one latch which is movable from an unlocked position into a locking position and back, and at least one actuating element, with which the latch is movable from one to the other position, wherein the ratchet unit has a latch receiving, with the latch is in locking position in the assembled state of the drive unit and ratchet unit in locking engagement, can be held with only one hand, both the drive unit and the latch by means of the actuating element for unlocking and the drive unit are then removed.
the drive unit can be released by hand, which is required anyway for gripping the drive unit, also by the ratchet unit, and the other hand is free - e.g. For security measures.
the Ratchet unit must still be held in the separation of the drive unit for other reasons, the retention of the ratchet unit can be done under purely ergonomic aspects, without any constraints due to the dissolution process.
the drive unit has a front in the drive direction limiting surface and the ratchet unit a seat for receiving the drive unit, which has an end face on which the drive unit rests with its front boundary surface in the assembled state of the drive unit and ratchet unit, and protrudes at least one bolt in the locking position from the front boundary surface of the drive unit and the bolt receptacle is a recess in the seat-end face of the ratchet unit.
the at least one latch in the unlocked position is retractable so far that it extends maximally to the front boundary surface of the drive unit.
the drive unit can be easily separated from the ratchet unit by the drive unit along the front boundary surface of the seat of the ratchet unit is lifted or-pushed.
each bolt is spring-biased in its locking position and movable by means of the locking actuator against the spring bias of the locking position in its unlocked position.
the locking actuator against the spring bias of the locking position in its unlocked position.
the first drive coupling element protrudes from the front boundary surface of the drive unit and can be brought into drive engagement with the second drive coupling element through an opening in the seat end face of the ratchet unit.
the seat of the ratchet unit thus serves as a guide with which the drive coupling element of the drive unit is guided to the drive coupling element of the ratchet unit and brought into driving engagement with this.
both the first drive coupling element and the latch protrude from the front boundary surface of the drive unit and the second drive coupling element and the latch receptacles are arranged in the seat end face or can be reached through it, it is ensured that both the drive Coupling elements and bolt and bolt receptacles are brought together in engagement when the front boundary surface of the drive unit rests against the seat-end face of the ratchet unit.
a respective latch and on both sides of the second drive coupling element respectively associated latch receptacles are arranged on both sides of the first drive coupling element.
a bending load of the drive coupling elements during operation parallel to a connecting straight line through the bolt is thus largely excluded.
a bending load is completely excluded.
the drive unit has a second boundary surface and the ratchet unit in its seat for the drive unit on a base surface, both extending along the output direction and are in the assembled state of drive unit and ratchet unit together, and has the drive unit on its second boundary surface a support wedge, which extends along the output direction and the wedge angle opens perpendicular to the second boundary surface against the output direction towards the rear, and has the ratchet unit in its seat base a corresponding recess for receiving the support wedge, wherein the support wedge on its back a Supporting surface and the recess has at its rear end a contact surface, abuts the support surface of the support wedge in the assembled state of the drive unit and ratchet unit.
the drive unit in the composite - d. H. locked - forward state of the drive unit and ratchet unit to the rear and laterally directed pressure forces in the ratchet unit, without components of the drive unit or the ratchet unit are subjected to bending.
the permissible stresses or the transferable forces are thereby significantly increased.
the risk of deformations occurring during operation is significantly reduced, since the bending deformations occurring even at relatively low bending loads are avoided.
the design freedom is significantly increased. Design constraints, such as requiring both the drive coupling and ratcheting unit drive coupling elements and the rear support structure between the drive unit and the ratcheting unit to be centered on the drive unit, as required in the prior art, are no longer present.
FIGS. 1 to 5 illustrated embodiment of a torque wrench system 1 comprises a drive unit 2 and a ratchet unit 3, which are detachably assembled to a screw unit and are releasably rigidly connected together in the assembled state.
the drive unit 2 has a drive cylinder 4 and this on its output side, a first drive coupling element 5.
the drive cylinder 4 and the first drive coupling element 5 protrude from a front boundary surface 6 of the drive unit 2 in the output direction. Its rear boundary surface 6a is formed in part by the cover 4a of the drive cylinder 4.
an actuating element 9 is mounted in the form of an actuating lever, with which the two bars 7 are movable back from the locking position against the spring bias in an unlocked position in which they are within the drive unit 2 maximum extend to the front boundary surface 6.
the drive unit 2 is a hydraulic drive unit.
the hydraulic connection 10 is formed on the upper side 8 of the drive unit 2.
a cover 11 which covers a part 12 of the upper side 13 of the ratchet unit 3 in the assembled state of the drive unit 2 and ratchet unit 3.
the drive unit 2 has at its in the figures lower side 14, which is referred to as a second boundary surface, a support wedge 15 which extends along the output direction with a wedge angle ⁇ , perpendicular to the second boundary surface 14 against the output direction to the rear opens.
the size of the wedge angle ⁇ is preferably in the range of 5 ° to 45.
the support wedge 15 On its rear side 16, the support wedge 15 has a projection 17 extending to the rear, which is designed to fit into a corresponding recess (not shown) in the ratchet unit 3 so that the outer wall of the projection 17 rests against the inner wall of the recess.
the ratchet unit 3 has a ratchet 18 which is designed to bear on the outer surfaces of a given nut size. For each nut size therefore a separate ratchet unit 3 is provided.
the ratchet unit 3 has a seat 19 for receiving the drive unit 2.
the seat 19 is L-shaped, wherein the short leg of the L a seat-end face 20 and the long leg of the L forms a seat base 21.
an opening 22 is formed, through which the first drive coupling element 5 of the drive unit 2 with a (not shown) second drive coupling element of the ratchet unit 3 can be brought into driving engagement, when in the assembled state of the drive unit 2 and Ratchet unit 3, the drive unit 2 rests with its front boundary surface 6 on the seat end face 20 of the ratchet unit 3.
the second drive coupling element is also in driving engagement with the ratchet 18, so that in the assembled state of the drive unit 2 and ratchet unit 3 with the drive cylinder 4 of the drive unit 2 via the first and second drive coupling element, the ratchet 18 of the ratchet unit 3 can be driven.
two recesses 23 are formed in the seat end face 20, which form latch receptacles and into which the two at the front Boundary surface 6 of the drive unit 2 arranged latch 7 extend when the drive unit 2 and the ratchet unit 3 are assembled, d. H. when the front boundary surface 6 of the drive unit 2 rests against the seat end face 20 of the ratchet unit 3.
a wedge-shaped recess 24 is formed, which is designed to receive the support wedge 15 of the drive unit 2.
a recess is formed, which is designed to receive the projection 17 on the back 16 of the support wedge 15.
the drive unit 2 is rotated with the protrusion 17 located in the recess to the ratchet unit 3 formed by these two, so that the front and the second boundary surface 6, 14 of the drive unit 2 on the seat end face 20 and on the seat base 21 of the ratchet unit 3 come to rest and thereby the first drive coupling element 5 comes with the second drive coupling element through the opening 22 in the seat end face 20 into driving engagement and the two bars 7 of the drive unit 2 in the two associated latch receptacles 23 of Ratchet unit 3 are pressed by the spring preload and thus occupy their locking position in the bolt receptacles 23 ( FIGS. 2 to 4 ).
the operating lever 9 on the upper side 8 of the drive unit 2 can be actuated with a finger 25 of the hand 26 holding the drive unit 2 ( FIG. 5 ), so that the bolt 7 move back against its spring bias from its locking position to its unlocked position in which they are located within the drive unit 2.
the drive unit 2 can then be removed from the ratchet unit 3, for example in the direction of the arrow 27.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Lock And Its Accessories (AREA)

EP16001054.2A 2015-05-20 2016-05-10 Systeme dynamometrique Active EP3095559B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102015006564.5A DE102015006564A1 (de)	2015-05-20	2015-05-20	Drehmomentschrauber-System

Publications (2)

Publication Number	Publication Date
EP3095559A1 true EP3095559A1 (fr)	2016-11-23
EP3095559B1 EP3095559B1 (fr)	2018-09-26

Family

ID=55966975

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP16001054.2A Active EP3095559B1 (fr)	2015-05-20	2016-05-10	Systeme dynamometrique

Country Status (7)

Country	Link
US (1)	US10099352B2 (fr)
EP (1)	EP3095559B1 (fr)
JP (1)	JP6235071B2 (fr)
KR (1)	KR101843429B1 (fr)
DE (1)	DE102015006564A1 (fr)
DK (1)	DK3095559T3 (fr)
ES (1)	ES2701249T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
USD1042067S1 (en) *	2023-02-28	2024-09-17	Primesource Consulting Llc	Limited clearance tool
USD1116672S1 (en) *	2024-06-14	2026-03-10	Industrial Bolting Technologies, Inc.	Low profile power head
USD1116688S1 (en) *	2024-06-14	2026-03-10	Industrial Bolting Technologies, Inc.	Low profile power head

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6330842B1 (en) *	2000-06-26	2001-12-18	Kevin Brun	Compact head power driven ratchet tool
US20020121161A1 (en) *	2001-03-05	2002-09-05	Peter Koppenhoefer	Fluid operated tool for tightening and loosening threaded connectors
US20120024556A1 (en) *	2010-07-27	2012-02-02	Shiqi Zhu	Three-in-one air tool
CN203726402U (zh) *	2014-03-19	2014-07-23	杜德机械科技(上海)有限公司	液压扳手
US20140238203A1 (en)	2013-02-22	2014-08-28	Steven Spirer	Hydraulic torque wrench system

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5717508Y2 (fr) *	1979-07-30	1982-04-12
JPS5622777A (en)	1979-08-01	1981-03-03	Microbial Chem Res Found	Novel antibiotic "bactobolin" and its preparation
JPH03117567A (ja) *	1989-09-29	1991-05-20	Paul Heinz Wagner	油圧パワーレンチ
DE29516060U1 (de) *	1995-10-10	1995-12-07	Wagner, Paul-Heinz, 53804 Much	Kraftschrauber
GB0014416D0 (en) *	2000-06-13	2000-08-09	More Nicholas	Hydraulic torque wrench
DE10236586B4 (de) *	2002-08-08	2014-12-04	Wagner Vermögensverwaltungs-GmbH & Co. KG	Kraftschrauber
US6925911B1 (en) *	2004-02-02	2005-08-09	Unex Corporation	Fluid-operated power tool
US20110314972A1 (en) *	2010-02-09	2011-12-29	Titan Technologies International, Inc.	Hydraulic Torque Wrench for Tight Clearance

2015
- 2015-05-20 DE DE102015006564.5A patent/DE102015006564A1/de not_active Ceased
2016
- 2016-05-10 EP EP16001054.2A patent/EP3095559B1/fr active Active
- 2016-05-10 DK DK16001054.2T patent/DK3095559T3/en active
- 2016-05-10 ES ES16001054T patent/ES2701249T3/es active Active
- 2016-05-19 KR KR1020160061532A patent/KR101843429B1/ko active Active
- 2016-05-19 JP JP2016100378A patent/JP6235071B2/ja active Active
- 2016-05-20 US US15/159,992 patent/US10099352B2/en active Active

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6330842B1 (en) *	2000-06-26	2001-12-18	Kevin Brun	Compact head power driven ratchet tool
US20020121161A1 (en) *	2001-03-05	2002-09-05	Peter Koppenhoefer	Fluid operated tool for tightening and loosening threaded connectors
US20120024556A1 (en) *	2010-07-27	2012-02-02	Shiqi Zhu	Three-in-one air tool
US20140238203A1 (en)	2013-02-22	2014-08-28	Steven Spirer	Hydraulic torque wrench system
CN203726402U (zh) *	2014-03-19	2014-07-23	杜德机械科技(上海)有限公司	液压扳手

Also Published As

Publication number	Publication date
EP3095559B1 (fr)	2018-09-26
US10099352B2 (en)	2018-10-16
KR101843429B1 (ko)	2018-04-02
ES2701249T3 (es)	2019-02-21
DK3095559T3 (en)	2019-01-21
US20160339569A1 (en)	2016-11-24
JP6235071B2 (ja)	2017-11-22
JP2016215367A (ja)	2016-12-22
KR20160137409A (ko)	2016-11-30
DE102015006564A1 (de)	2016-11-24

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