EP1050380A2 - Mécanisme à cliquet - Google Patents

Mécanisme à cliquet Download PDF

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Publication number
EP1050380A2
EP1050380A2 EP00106201A EP00106201A EP1050380A2 EP 1050380 A2 EP1050380 A2 EP 1050380A2 EP 00106201 A EP00106201 A EP 00106201A EP 00106201 A EP00106201 A EP 00106201A EP 1050380 A2 EP1050380 A2 EP 1050380A2
Authority
EP
European Patent Office
Prior art keywords
toothing
drive
teeth
driver
sleeve
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Withdrawn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
EP00106201A
Other languages
German (de)
English (en)
Other versions
EP1050380A3 (fr
Inventor
Wilfried Lazar
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1050380A2 publication Critical patent/EP1050380A2/fr
Publication of EP1050380A3 publication Critical patent/EP1050380A3/fr
Withdrawn legal-status Critical Current

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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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/466—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in an axial direction

Definitions

  • the invention relates to a ratchet mechanism according to claim 1.
  • WO 96/11 774 describes a ratchet wrench consisting of a rigid with a handle connected ratchet head.
  • a toothing in the ratchet head housing arranged in which a bushing with a toothing is mounted, which has a polygonal shape trained inner wall, which can be placed on a screw or nut.
  • the Spring-loaded toothing axially arranged on the outer wall of the bush engages in the toothing in the housing, whereby the socket is rotatably connected to the housing in one direction of rotation and in the opposite direction of rotation, the teeth of the socket slide over the teeth of the housing away, which creates a freewheel.
  • This construction sets a particular scope Ratchet head size ahead.
  • ratchet wrench To apply the ratchet wrench to the different To allow sizes of screws or nuts, various polygonal shapes are made in the socket trained adapters used which take up additional space.
  • a hexagonal adapter shown which is provided at both ends with a square Socket wrench inserts can be placed.
  • the ratchet housing has multiple teeth and additional mechanisms in the handle arranged, whereby the ratchet wrench with the housing and the handle, as well as with the in Housing and individual parts in the handle requires a certain size, which is not can be reduced arbitrarily. This is in poorly accessible places or in confined spaces Use of the ratchet wrench often not possible in the versions shown.
  • From US-PS 5501 124 is a ratchet wrench for loosening or tightening screw connections known on pipes or other fittings, consisting of one with a handle provided fork-shaped ratchet head, in which one with a side opening Socket is arranged.
  • the socket is provided with teeth on the circumference of the outer wall the inner wall has a hexagonal shape and is used to accommodate screw connections.
  • the toothing of a lever arm engages in the toothing of the socket and locks the socket in one direction of rotation on the one hand, whereby a positive connection is formed and on the other hand in the opposite direction of rotation, the teeth of the bush slide over the teeth of the lever arm away.
  • This design requires a relatively large design of the ratchet head housing, particularly in scope ahead, which limits the possible use of the ratchet wrench. On use of the ratchet wrench is difficult to access or in tight spaces often not possible.
  • the US-PS 19 04 621 describes a provided with a square angled handle Ratchet device, which is formed at one end with a circular opening, which with a Hole provided screwed cap is covered. At the other end is a square opening arranged in which a square bolt is mounted to accommodate socket wrench inserts serves. In the round opening, which is equipped with casters, there is one with a square opening provided torque-transmitting socket element inserted, the outer wall in profile is star-shaped.
  • a arranged on the socket element with a square Drilled key plate are those in the housing of the ratchet device Steered rollers in a certain position, which on the one hand in one direction of rotation against the rollers Housing are pressed and so the socket element is non-positively connected to the housing and on the other hand, in the opposite direction of rotation, the housing slides over the rollers and thus one Freewheeling forms by twisting the one inserted in the square hole of the key plate Handle, the frictional connection, as well as the freewheel in one direction of rotation is determined and by further inserting the handle into the square opening of the socket element is the ratchet device ready for use.
  • Socket wrench inserts for loosening or tightening screws or nuts are also known, they are used in conjunction with a ratchet or ratchet wrench. Through this elaborately designed technology, the use of these tools is considerably restricted. Bad accessible places or in confined spaces, their use is often not possible.
  • the invention is therefore based on the object to provide a ratchet mechanism, which in different screwing tools can be used or placed on them to prevent bad accessible places or in confined spaces, loosening or tightening screws or nuts, without moving the screwing tool used.
  • the ratchet mechanism shown in FIG. 3 comprises a drive 1 designed with a polygonal head 8, such as a hexagonal head, which is rotatably mounted in a neck 3 and serves to receive the screwing tool 19 or to be inserted into a screw 22, and one with one on it Polygonal opening 9 provided on the lower end face, for example a hexagonal opening, hollow driver 2, which is firmly inserted into the necks 3 and serves to receive a further screw 21 or a further screwing tool 20.
  • a polygonal head 8 such as a hexagonal head
  • a spring 4 seated on an upper inner wall 16 of the necks 3 and on an inwardly extending, offset outer wall 12 of the drive 1, one engages on the lower one End face of the drive 1 ring-shaped first toothing 6 spring-loaded into one on the upper End face on the driver 2 a second toothing 7 arranged in a ring, so that in the sleeve 3rd mounted drive 1 is positively connected to the driver 2 in one direction of rotation.
  • the socket wrench insert shown in FIG. 3 is due to the arrangement of the teeth of the toothing 6 on the drive 1 and the arrangement of the teeth of the teeth 7 on the driver 2, for loosening screws or nuts designed, e.g. in operation, on the one hand when the drive rotates 1 attached screwing tool in a counterclockwise direction, the toothing 6 in the toothing 7 interlocks positively, whereby the driver 2 is taken along and in the polygonal opening 9 located screw or nut is loosened, on the other hand when the screwing tool rotates clockwise, the positive engagement is canceled and the toothing 6 over the toothing 7 slides away, with which the screwing tool is no longer moved by the freewheel formed is required.
  • the arrangement of the teeth of the teeth 6 on the drive 1, and the arrangement of the teeth of the teeth 7 can be arranged on the driver 2 on the opposite side, as shown in FIG. 7 using the example of the first toothing 55 on the drive 53 and the second toothing 56 on the driver 54 is shown.
  • a spring-loaded ball 37 is arranged in a recess in the polygonal head 8, so that the socket wrench insert is releasably attached with the screwing tool placed thereon.
  • the outer surface 15 of the socket wrench insert is corrugated.
  • the drive 1 of the socket wrench insert be provided with a continuous bore 23, whereby a nut 25 located on a threaded bolt 24 without moving the used one Screwing tools can be loosened or tightened.
  • the remaining parts correspond to those of the first Embodiment.
  • FIGS. 5 and 6 An advantageous embodiment of the ratchet mechanism is shown in FIGS. 5 and 6; Connection with a screwing tool 50, loosening or tightening screw connections or e.g. a union nut 28 on a pipeline 29, without moving the screwing tools used.
  • the socket wrench insert is provided with a continuously extending laterally in the axial direction Provide recess 27.
  • the socket wrench insert shown in FIG. 6 has a receiving head 38 of the drive 33 which is set parallel above on the opposite sides. It's on him Screwing tool 50 is detachably fastened by means of spring-loaded ball 37 arranged in a recess. Due to the continuous recess 27, there is a C-shaped spring 31 intended.
  • a sleeve 30 has an inwardly offset and downwardly extending sleeve Wall 45 on. The sleeve 30 is at the two lateral ends facing the recess 27 Walls 46 and 47 provided which the arranged in the sleeve 30 between the wall 44 and the wall 45 Spring 31 and a ring 32 provided with a recess 27, against lateral rotation to secure.
  • the sleeve 30 is firmly attached, whereby the one on the inside of the wall 45 of the sleeve 30 rotatably and loaded by the spring 31 Drive 33, with the driver 36 is connected.
  • the toothing 40 on the drive 33 engages in the toothing 41 in a direction of rotation on the driver 36.
  • the drive 33 is on the in the driver 36 firmly inserted also a recess 27 having socket 35, which on the stepped Inner wall 49 of the drive 33 is supported, additionally guided.
  • the socket wrench insert shown in FIG. 6 is due to the arrangement of the teeth of the toothing 40 on the drive 33 and the arrangement of the teeth of the teeth 41 on the driver 36, for tightening Screws or union nuts on pipes or the like.
  • the toothing 40 engages positively in the toothing 41 so that the driver 36 is carried along and in the Polygonal opening 39 located screw or union nut is tightened while at a Rotary movement of the screwdriver mi counterclockwise, the positive locking is canceled and the Slide teeth of toothing 40 over toothing 41.
  • An implementation of the screwing tool is no longer required due to the freewheel thus formed.
  • the arrangement of the teeth of the toothing can be used to loosen union nuts or screw connections 40 on the drive 33, and the arrangement of the teeth of the teeth 41 on the driver 36 reversed be arranged, as shown by way of example in FIG. 3.
  • FIG. 7 and FIG. 8 Another advantageous embodiment of the invention, which ratchet mechanisms with fine design the toothing and larger width across flats is preferably used is shown in FIG. 7 and FIG. 8 shown.
  • the teeth engage Drive by means of magnetic force into the toothing in the driver.
  • the ratchet mechanism shown in side view in FIG. 7 with a sectional view Sleeve 51 has a permanently inserted magnetic bushing 52 in the hollow driver 54, whose outer wall 57 extends conically inwards upwards and on the likewise conical one Inner wall 59 of a blind bore 58 bears in the drive 53.
  • the magnetic force in the neck 51 Mounted drive 53 attracted by the driver 54, whereby the first toothing 55 on the drive 53 in the second toothing 56 engages positively on the driver 54.
  • Socket wrench inserts are designed for tightening screws or nuts. To solve the teeth of screws or nuts can be arranged reversed.
  • the remaining parts correspond those of the embodiment shown in FIG. 3.
  • FIG. 8 in a side view with one running laterally in the axial direction Recess 27 ratchet mechanism, with a sleeve 60 and shown in section a ring 64 shown in section, has a firmly inserted in the hollow driver 63 magnetic bushing 61, the outer wall 65 of which extends conically inwards and on the also conical inner wall 66 rests in the drive 62.
  • the magnetic force in the Sleeve 60 rotatably mounted drive 62 attracted by the driver 63, whereby a first toothing 67th on the drive 62 engages in a second toothing 68 on the driver 63 in a form-fitting manner.
  • the arrangement of the Teeth of the teeth 67 on the drive 62 and the arrangement of the teeth of the teeth 68 on the driver 63 of the ratchet mechanism shown in FIG. 8 are for tightening screw connections or Union nuts on pipes or the like.
  • the teeth of the teeth 67 on the drive 62 and the teeth the toothing 68 on the driver 63 may be arranged reversed.
  • the remaining parts correspond those of the embodiment shown in FIG. 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP00106201A 1999-04-06 2000-03-22 Mécanisme à cliquet Withdrawn EP1050380A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19915596 1999-04-06
DE1999115596 DE19915596C1 (de) 1999-04-07 1999-04-07 Ratschenmechanismus zum Einsetzen in ein Schraubwerkzeug

Publications (2)

Publication Number Publication Date
EP1050380A2 true EP1050380A2 (fr) 2000-11-08
EP1050380A3 EP1050380A3 (fr) 2001-03-21

Family

ID=7903729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00106201A Withdrawn EP1050380A3 (fr) 1999-04-06 2000-03-22 Mécanisme à cliquet

Country Status (2)

Country Link
EP (1) EP1050380A3 (fr)
DE (1) DE19915596C1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651362A (en) * 1923-09-18 1927-12-06 Ayotte Joseph Rene Interchangeable wrench or other tool holder
US1925714A (en) * 1931-01-08 1933-09-05 George W Crist Combination wrench and anvil
GB2062524A (en) * 1979-11-02 1981-05-28 Rendl R Spark plug wrench adapted for adjustable torque
US4964319A (en) * 1989-09-15 1990-10-23 Chang Yun Chi Socket wrench device for rotating a spark plug
US5388479A (en) * 1993-09-07 1995-02-14 Sroka; John Universal ratchet wrench
WO1996011774A1 (fr) * 1994-10-13 1996-04-25 George Hillinger Clef a douilles a cliquet a pignons en prise

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904621A (en) * 1932-03-29 1933-04-18 Albert J Kounovsky Ratchet device
US3942337A (en) * 1974-09-16 1976-03-09 Industrial Analytics Inc. Torque limiting device
US5467672A (en) * 1992-04-20 1995-11-21 Ashby; Earl T. Open end ratchet wrench
DE29900617U1 (de) * 1999-01-15 1999-03-18 Hsieh, Chih-Ching, Fongyuan, Taichung Ringschlüssel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651362A (en) * 1923-09-18 1927-12-06 Ayotte Joseph Rene Interchangeable wrench or other tool holder
US1925714A (en) * 1931-01-08 1933-09-05 George W Crist Combination wrench and anvil
GB2062524A (en) * 1979-11-02 1981-05-28 Rendl R Spark plug wrench adapted for adjustable torque
US4964319A (en) * 1989-09-15 1990-10-23 Chang Yun Chi Socket wrench device for rotating a spark plug
US5388479A (en) * 1993-09-07 1995-02-14 Sroka; John Universal ratchet wrench
WO1996011774A1 (fr) * 1994-10-13 1996-04-25 George Hillinger Clef a douilles a cliquet a pignons en prise

Also Published As

Publication number Publication date
EP1050380A3 (fr) 2001-03-21
DE19915596C1 (de) 2000-09-07

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