EP2851155A2 - Mécanisme à rochet à denture fine - Google Patents

Mécanisme à rochet à denture fine Download PDF

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Publication number
EP2851155A2
EP2851155A2 EP14002884.6A EP14002884A EP2851155A2 EP 2851155 A2 EP2851155 A2 EP 2851155A2 EP 14002884 A EP14002884 A EP 14002884A EP 2851155 A2 EP2851155 A2 EP 2851155A2
Authority
EP
European Patent Office
Prior art keywords
pawl
drive housing
housing
drive
toothing
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Withdrawn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
EP14002884.6A
Other languages
German (de)
English (en)
Other versions
EP2851155A3 (fr
Inventor
Dieter Heidel
Hans-Joachim Mehlau
Joachim Wilhelm
Michael Backhaus
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.)
Stahlwille Eduard Wille GmbH and Co KG
Original Assignee
Eduard Wille GmbH and Co KG
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 Eduard Wille GmbH and Co KG filed Critical Eduard Wille GmbH and Co KG
Publication of EP2851155A2 publication Critical patent/EP2851155A2/fr
Publication of EP2851155A3 publication Critical patent/EP2851155A3/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Withdrawn legal-status Critical Current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
    • B25B13/46—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
    • B25B13/462—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 a direction radial to the tool operating axis
    • B25B13/463—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 a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
    • 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
    • B25B13/462—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 a direction radial to the tool operating axis
    • B25B13/465—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 a direction radial to the tool operating axis a pawl engaging an internally toothed ring

Definitions

  • the ratcheting tool also called a ratchet, consists of a lever arm and a tool head.
  • the tool head includes a drive housing in which a rotary member, usually a gear, is rotatably mounted.
  • a plug connection for a slip-on or plug-in tool is connected to the gear.
  • a pawl in the drive housing allows only one direction of rotation of the gear. In this way, a torque is transmitted in one direction of rotation and in the other direction of rotation, the lever arm can be returned to an initial position.
  • the ratcheting tool does not have to be removed from the screw when actuated.
  • the pawl Lock the gear both in one direction of rotation, as well as in the other direction. This allows you to set a left or right-hand rotation for torque transmission.
  • Taiwanese patent M434 653 shows a ratchet tool with a drive housing and a lever attached thereto.
  • a gear is rotatably mounted.
  • a square profile is provided as a plug connection for a Aufstecktechnikmaschine.
  • a switch selects between two spring-loaded pawls in the drive housing. The switch puts the pawls in appropriate locking positions. Each of the pawls allows only one direction of rotation of the gear. This can be adjusted depending on the switch position of the switch either the left or the clockwise. For the switch various locking positions are provided.
  • a housing cover closes the drive housing. Only the external square profile of the connector protrudes through an opening of the housing cover.
  • the DE 202012 102 520 U1 discloses a wrench with a gun.
  • the wrench has a ratchet body, a drive mechanism, a cover ring and a regulating part. At one end of the ratchet body an opening is provided.
  • a receiving space is formed axially in an inner wall of the opening and corresponding to the ratchet body, wherein the receiving space coincides with another end of the ratchet body.
  • the wrench further has a lateral engagement opening on one side of the receiving space.
  • An insertion groove is formed axially in a bottom of the accommodating space and corresponding to the ratchet body. The regulating part is inserted in this insertion groove.
  • a positioning groove is provided axially in a bottom of the insertion groove and corresponding to the ratchet body.
  • the drive mechanism is composed of a ratchet and a drive element.
  • the ratchet is inserted into the opening, an external periphery of the ratchet toothing is provided.
  • the drive element is used in the receiving space, wherein an abutment surface is formed on each one of the two ends of the drive element.
  • the two abutment surfaces lie on the bottom of the receiving space.
  • the cover ring With a cover ring, the opening and the lateral engagement opening of the receiving space are covered.
  • the cover ring is provided with an opening, wherein the opening is formed according to the ratchet and with this an upper side of the ratchet is held.
  • the regulating part consists of a switching element, a first elastomer and a second elastomer.
  • the switching element is inserted in the insertion groove and can rotate in this.
  • On the switching element are two adjacent notches.
  • the positioning groove is optionally formed according to one of the two notches.
  • the first elastomer is inserted in the positioning groove to selectively abut one of the two indentations of the switching element.
  • the second elastomer is attached to the switching element to abut against the drive element.
  • the DE 1 678 400 is a reversible ratchet known.
  • the reversible ratchet is for transmitting a torque exerted by a drive lever to a ratchet operated tool such as a socket wrench for tightening nuts, bolt heads, etc., the ratchet having a head with a drive lever having a recess and disposed therein Having its periphery toothed ratchet wheel with a coupling shaft for mounting the tool.
  • the ratchet includes a drive lever, a ratchet wheel and a ratchet mechanism, the latter including a pawl by which the rotational force is transmitted from the drive lever to the driven ratchet wheel.
  • a shift lever has a journal.
  • the lever has a locking mechanism that can engage in two positions.
  • the bearing pin has a blind bore, in which a spring-loaded ball is inserted. The ball can engage in two notches, ie two positions.
  • the DE6808518 U relates to a two-way ratchet lever wrench, comprising a ratchet wheel carrying the follower fitting, which has teeth at its periphery, and a locking member provided with counter-teeth of the same radius and pressed against the ratchet wheel by a spring, one end thereof is arranged in a rotary body which can be rotated by means of a manually operable lever for selecting the direction of rotation.
  • the ratchet tool includes a body and a gear disposed in the body and a plurality of teeth defining a circumference of the gear.
  • the ratcheting tool includes a pawl having the plurality of teeth facing the gear, the pawl being disposed in the body such that the pawl is laterally movable with respect to the gear between a first position in which the pawl is between the body and the gear is arranged so that the body transmits torque via the pawl in a first rotational direction, and a second position in which the pawl between the body and the gear is arranged, so that the body via the pawl torque in an opposite direction of rotation transfers.
  • the document further discloses an externally actuatable change-over switch with which the direction of rotation and the engagement of the toothing in the gear for transmitting the torque is adjusted.
  • the ratchet tool includes a hinge which connects the pawl to the switch, the switch having a pivotally mounted in a body switching pin with a projection which in a recess of the pawl for switching intervenes.
  • a blind bore is provided with a spring, wherein in the blind bore to the hinge-facing side, a spring-loaded hinge pin is provided, which leads through the projection of the switching pin in the recess of the pawl.
  • a disadvantage of the prior art is in particular that the switching mechanism for the ratchet drive is constructed relatively complicated with many individual components. This makes the production of such tools expensive. In some ratchets has been shown that the switching mechanism switches in an undesirable way independently.
  • the object of the invention is therefore to avoid the disadvantages of the prior art and to provide a switching mechanism for ratchet tools, which is simple and inexpensive.
  • the switching mechanism must not switch automatically during operation.
  • the invention is based on the principle of using as few components as possible for the ratcheting tool.
  • a clamping mechanism for the joint between the pawl and the switching pin of the switch has been used on the one hand and on the other hand, a clamping mechanism for a latching mechanism for the switch.
  • These are separate functional elements of the ratchet tool.
  • the clamping mechanism of the joint and the locking mechanism can be combined.
  • it is accordingly provided at the switching pin of the switch a diametrical and continuous bore.
  • a spring element usually a coil spring.
  • a hinge pin On the side facing the hinge of the bore a hinge pin is provided, while engages on the opposite side of a detent ball when switching in one or more detents of the drive housing. This measure does not require the use of two separate spring mechanisms. This saves manufacturing costs and simplifies the construction of the ratcheting tool.
  • the connector of the ratchet tool is designed as a polygonal pin for receiving Aufstecktechnikmaschineen, which is arranged centrally on the gear and guided by the drive housing.
  • the connector of the ratchet tool is designed as a polygonal pin for receiving Aufstecktechnikmaschineen, which is arranged centrally on the gear and guided by the drive housing.
  • plug-in tools can be easily connected to the ratchet tool.
  • Numerous plug-in tools have a corresponding polygonal socket, a polygonal inner profile.
  • the ratcheting tool can be used universally for most insertion tools.
  • the pawl has a wedge-shaped region which is supported on the side wall of the drive housing upon transmission of a torque.
  • the wedge-shaped region locks the pawl such that the rotating part can not rotate in one direction of rotation.
  • the teeth of the rotating part firmly engages in the toothing of the pawl. In this blocking position can be transmit a torque by means of the ratcheting tool. If an attempt is now made to transmit a torque in the other direction of rotation, the wedging of the pawl is released.
  • the teeth of the pawl ratchets over the teeth of the rotary part of the drive.
  • a further advantageous embodiment of the invention is that in the ratchet tool according to the invention, a side wall of the drive housing and / or the drive have a groove-shaped recess, in which fastening means are provided for fixing the housing bottom.
  • fastening means are provided for fixing the housing bottom.
  • the housing bottom is no longer fastened with screws.
  • the housing bottom is fixed with fastening means in a groove of the side wall of the housing or of the drive part.
  • the groove-shaped recess is usually located on the inside of the drive housing.
  • Tab-shaped fastening means engage in this groove-shaped recess to attach the housing bottom to the housing of the ratchet tool.
  • small parts such as screws or rivets are used to attach the housing bottom.
  • a fastener such as e.g. a correspondingly wide designed snap ring, fix the housing cover to the housing.
  • the snap ring sits in the groove-shaped recess of the drive part and thus can not slip. This holds the housing bottom firmly in its position without screws and the like.
  • the housing bottom is wholly or partly made of plastic. This is advantageous in the production. An injection molded part can be created quickly and inexpensively.
  • the housing bottom made of plastic can also be easily mounted on the housing of the ratchet tool, since the plastic is regularly elastic. The housing bottom or the fastening means can then be more easily introduced into the groove-shaped recess.
  • the elasticity also has the advantage that the plastic has a damping effect and absorbs vibrations. During assembly, the fitter's arm does not tire so quickly.
  • a particularly advantageous embodiment of the invention also results from the fact that the edge of the housing bottom has a Kliplippe which is clipped as a fastening means in the groove-shaped recess of the drive housing of the ratchet tool for closing.
  • This type of attachment of the housing bottom allows easy fixation on the drive housing, even with a non-elastic material for the housing bottom.
  • the Kliplippe snaps the housing bottom firmly on the drive housing and can be solved only with a special tool or by force from the housing wall.
  • a ratchet tool In Fig. 1 is denoted by 10 a ratchet tool.
  • the ratcheting tool 10 is shown from the bottom.
  • the ratcheting tool 10 comprises a drive housing 12 on which a lever 14 is provided.
  • a plastic handle 16 increases the comfort for the operation of the ratcheting tool 10.
  • the drive housing 12 is closed by a detachable housing bottom 18 from its underside. Only a plug connection 20 protrudes through an opening 22 of the housing bottom 18.
  • the plug connection 20 is formed as an external square profile 24.
  • the external square profile 24 is connected to a rotary part 26 of a drive 28 (see Fig. 3 ).
  • the drive housing 12 forms with the drive 28 a tool head 29.
  • the rotary member 26 is rotatably mounted in the drive housing 12.
  • the FIG. 2 shows the ratcheting tool 10 from the top.
  • the ratcheting tool 10 comprises the drive housing 12, on which the lever 14 is provided.
  • the plastic handle 16 is located at one end of the lever 14.
  • the drive housing 12 is closed by a housing cover 30.
  • An operating knob 32 is disposed on the opposite side of the external square profile 24.
  • This control knob 32 belongs to a release mechanism 34 (see, eg Fig. 3 or 4).
  • the unlocking mechanism 34 releases the connector 20 in a simple manner.
  • a switching mechanism 40 see, eg Fig. 4 to see). With the switching mechanism 40 can be set a left or right rotation for torque transmission.
  • Fig. 3 shows a longitudinal section through the ratcheting tool 10 according to Fig. 1 and 2 in the region of the tool head 29.
  • the lever 14 is only indicated.
  • the same reference numerals are used for corresponding components.
  • the rotary member 26 is rotatably mounted.
  • the rotary member 26 is formed as a gear.
  • the rotary member 26 is for this purpose rotatably mounted in the opening 22 of the housing bottom 18 and in an opening 42 of the housing cover 30.
  • the connector 20 On the rotary member 26 is the connector 20, which is designed as a square profile 24 external.
  • the unlocking mechanism 34 includes a spring loaded with a coil spring 44 unlocking pin 46.
  • the unlocking pin 46 is disposed axially in a central Entriegelungsbohrung 48 of the rotary member 26 and extends into the connector 20.
  • the control knob 32 which is provided on the unlocking pin 46, the unlocking pin 46 is pressed against the against the force of the coil spring 44 in the Entriegelungsbohrung 48.
  • a locking ball 50 in a ball recess 52 (see Fig. 4 and 7 ) Approved.
  • a Aufstecktechnikmaschine can be plugged or removed from the connector 20 so.
  • a switching pin 54 of the switching mechanism 40 In the drive housing 12 further protrudes a switching pin 54 of the switching mechanism 40.
  • the switching pin 54 is guided through a housing opening 56 of the housing cover 30 and at the upper end with the operating part 38 of the switching mechanism 40th coupled. By operating the operating part 38, the switching pin 54 can be rotated axially to switch.
  • the switching pin 54 of the switching mechanism 40 has a projection 58.
  • the projection 58 protrudes into a hinge recess 60 of a pawl 62.
  • the projection 58 and the switching pin 54 form a hinge connection 64.
  • the pawl 62 is movably provided in the drive housing 12. Upon actuation of the operating part 38, the switching pin 54 acts on the pawl 62 via the hinge connection 64.
  • the pawl 62 then pivots about its pivot axis 66.
  • the pawl 62 has a toothing 68 facing the rotary part 26 (see also FIG Fig. 4 ).
  • a diametrical bore 70 is provided with a spring 72.
  • the housing bottom 18 is clipped in a groove-shaped recess 74 within the drive housing 12.
  • the side wall 76 of the drive housing 12 therefore comprises one or more groove-shaped recesses 74 for fastening the housing bottom 18.
  • the housing bottom 18 is made of plastic and accordingly has sufficient elasticity. With one or more Kliplippen 79 of the housing bottom 18 is fixed in the groove-shaped recess 74.
  • Fig. 4 shows an exploded perspective view of the ratcheting tool according to the invention 10. As far as this figure corresponds to the previous figures, the same reference numerals are used.
  • the drive housing 12 of the ratcheting tool 10 is connected to the lever 14.
  • the rotary member 26 is provided with a fine toothing 78, which is provided parallel to the toothing 68 of the pawl 62. The teeth 68 of the pawl 62 can thus engage in the toothing 78 of the rotary member 26.
  • the recess 36 is clearly visible in the region of the housing opening 56.
  • the switching pin 54 is removed with the control panel 38.
  • the projection 58 of the switching pin 54 is clearly shown.
  • the diametrical bore 70 in the switching pin 54 is performed by this projection 58 and receives the removed spring 72 on.
  • the Spring 72 biases a hinge pin 80 on the side of the projection 58. Therefore, the diametrical bore 70 also passes through the projection 72.
  • the spring 72 biases a detent ball 82 (see FIGS. 7 and 9 ) in front.
  • the detent ball 82 is also in the diametrical bore 70, which is not visible in this perspective.
  • the unlocking pin 46 unlocks the locking ball 50 upon actuation of the control knob 32 against the spring force of the coil spring 44.
  • the unlocking pin 46 as in FIG. 3 to see in section, inserted into the Entriegelungsbohrung 48 axially into the rotary member 26.
  • a snap ring 84 is used, which engages in a groove 86 of the rotary member 26.
  • the housing bottom 18 made of plastic is fastened with the Kliplippe 79 in the side wall 76 of the drive housing 12.
  • Fig. 5 shows the ratchet tool 10 according to the invention in a plan view without the housing bottom 18 for the drive housing 12.
  • the toothing 68 of the pawl 62 engages in the toothing 78 of the rotary member 26.
  • the pawl 62 each side has a wedge-like shape 88 which wedged with corresponding housing surfaces 90 of the drive housing 12 depending on the direction of rotation of the rotary member 26.
  • the toothing 68 of the pawl 62 holds to the teeth 78 of the rotary member 26 fixed by a corresponding engagement.
  • the drive housing 12 tapers in the region of the switching mechanism 40 to a tapered shape, wherein the legs serve the housing surfaces 90 for the wedging of the pawl 62.
  • Latches 94 are provided on the head 92 of the tapered shape. These detents 94 are formed from recesses. In these notches 94 engages the detent ball 82 of the switching pin 54 and avoids an independent adjustment of the switching mechanism 40.
  • the switching pin 54 can be rotated in the head 92 for switching.
  • hinge pin 80 On the diametrically opposite side of the switching pin 54 to the detent ball 82 is not visible here hinge pin 80 (see also Fig. 7 and 9 ).
  • the hinge pin 80 provides in particular for a spring-loaded articulated connection 64. In this way, a movement of the pawl 62 is ensured by the switching mechanism 40.
  • Fig. 6 shows the ratchet tool 10 in perspective from the bottom with the removed housing bottom 18.
  • the rotary member 26 is locked in a rotational direction by the pawl 62. This allows a torque which is applied to the lever 14 is transmitted via the connector 20 in this direction of rotation.
  • the switching mechanism 40 switches the pawl 62 as needed. Thus, a torque can be transmitted in both directions. In the other direction of rotation ratchets the teeth 78 of the rotary member 26 on the teeth 68 of the pawl away, so that leaves no torque transmitted.
  • Fig. 7 shows a further longitudinal section of the ratcheting tool 10 in the region of the tool head 29.
  • the switching mechanism 40 is particularly easy to see.
  • the switching pin 54 of the switching mechanism 40 is rotatably mounted.
  • the projection 58 protrudes into the joint recess 60 of the pawl 62.
  • the engagement of the toothing 68 of Pawl 62 in the toothing 78 of the rotary member 26 for transmitting the torque is also indicated here.
  • the diametrical bore 70 can be seen in this section.
  • the spring 72 which the spring pin 82 on the side of the projection 58 and on the other side, the detent ball 82 at the same time spring loaded.
  • the detent ball 82 engages upon actuation of the operating part 38 of the switching mechanism in the detents 94.
  • the changeover pin 54 can only be moved over the detents 94. Independent switching by changing the position of the ratchet tool 10 is thus largely excluded.
  • the hinge 64 is always biased with a spring load. At each deflection of the pawl 62, the hinge 64 engages exactly to lock the rotary member 26 for the transmission of torque in one direction of rotation.
  • the connector 20 is provided as external square profile 24.
  • the locking ball 50 is visible on a surface 96 of the external square profile 24.
  • the locking ball 50 is located in the ball recess 52 for the unlocking mechanism 34.
  • the operating knob 32 for actuating the unlocking mechanism 34 is visible.
  • a bearing bore 98 supports the rotary member 26 in the opening of the housing bottom 18.
  • the housing bottom 18 is fastened in the groove-shaped recess 74 of the drive housing 12.
  • Fig. 8 shows a plan view of the drive housing 12 without the drive 28 and without the switching mechanism 40 of the ratcheting tool according to the invention 10.
  • the drive housing 12 tapers in the region of the switching mechanism 40 to the tapered shape, wherein the legs, the housing surfaces 90, serve for the wedging of the pawl 62.
  • the detents 94 for the detent ball 82 of the switching mechanism 40 are provided.
  • Fig. 9 shows an open drive housing 12 of the tool head 29.
  • the lever 14 for transmitting torque is only hinted at.
  • the drive housing 12 surrounds the drive 28.
  • the projection 58 projects into the joint recess 60 of the pawl 62, the engagement of the teeth 68 of the pawl 62 in the teeth 78 of the rotary member 26 for transmitting the torque will be seen here.
  • the teeth 68 of the pawl 62 holds to the teeth 68 of the rotary member 26 fixed by a corresponding engagement.
  • the diametric bore 70 through the switching pin 54 and the projection 58 can be seen.
  • the spring 72 which the spring pin 82 on the side of the projection 58 and on the other side, the detent ball 82 at the same time spring loaded.
  • the detent ball 82 engages upon actuation of the operating part 38 of the switching mechanism 40 in the detents 94.
  • the changeover pin 54 can only be moved over the detents 94. Independent switching by changing the position of the ratchet tool 10 is thus prevented.
  • the articulation 64 is always biased by a spring. At each deflection of the pawl 62, the hinge 64 engages exactly to lock the rotary member 26 for the transmission of torque in one direction of rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP14002884.6A 2013-08-26 2014-08-19 Mécanisme à rochet à denture fine Withdrawn EP2851155A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201320103841 DE202013103841U1 (de) 2013-08-26 2013-08-26 Ratsche mit Feinverzahnung

Publications (2)

Publication Number Publication Date
EP2851155A2 true EP2851155A2 (fr) 2015-03-25
EP2851155A3 EP2851155A3 (fr) 2015-08-05

Family

ID=49323682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14002884.6A Withdrawn EP2851155A3 (fr) 2013-08-26 2014-08-19 Mécanisme à rochet à denture fine

Country Status (7)

Country Link
US (1) US9089953B2 (fr)
EP (1) EP2851155A3 (fr)
JP (1) JP2015042440A (fr)
CN (1) CN104416509A (fr)
DE (1) DE202013103841U1 (fr)
HK (1) HK1207840A1 (fr)
TW (1) TWI630986B (fr)

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DE102017120094A1 (de) 2017-08-31 2019-02-28 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmomentwerkzeug
WO2020177805A1 (fr) 2019-03-05 2020-09-10 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Outil de couple

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CN104842304B (zh) * 2014-02-13 2017-03-01 王又民 棘轮扳手制动结构
GB2527418B (en) * 2014-05-15 2017-07-05 Snap On Incorporated Ratchet wrench including retaining ring
US10864616B2 (en) 2014-05-15 2020-12-15 Snap-On Incorporated Ratchet mechanism for ratchet wrench
US20160279842A1 (en) * 2015-03-23 2016-09-29 Yao-Lin Cho Manufacturing stesp for hand tool
US9969063B2 (en) * 2016-01-27 2018-05-15 Yi-Yong Liu Ratchet wrench
US20170225302A1 (en) * 2016-02-10 2017-08-10 Compass Corp. Ratchet wrench
CN107234306A (zh) * 2017-07-31 2017-10-10 徐州徐工筑路机械有限公司 一种双向棘轮快速攻丝工具
CN107425311A (zh) * 2017-08-30 2017-12-01 广东电网有限责任公司江门供电局 一种带有棘轮装置的接地线的夹固装置
CN207818943U (zh) * 2017-08-30 2018-09-04 广东电网有限责任公司江门供电局 一种带有棘轮装置的接地线的夹固装置
CN110340833A (zh) * 2018-04-04 2019-10-18 陈怡富 棘轮扳手的拨动装置
US20190314959A1 (en) * 2018-04-16 2019-10-17 Yi-Fu Chen Switch device for ratchet wrench
CN110815104A (zh) * 2019-11-18 2020-02-21 中国航发贵州黎阳航空动力有限公司 摇转高压转子用扳杆
TWI728825B (zh) * 2020-06-02 2021-05-21 優鋼機械股份有限公司 棘輪扳手之撥鈕結構
JP7720608B2 (ja) * 2021-03-30 2025-08-08 京都機械工具株式会社 ラチェット工具構造
USD1012643S1 (en) 2021-12-21 2024-01-30 Matco Tools Corporation Ratchet pawl
US12138748B2 (en) * 2021-12-21 2024-11-12 Matco Tools Corporation Ratchet mechanism and ratchet pawl
CN114771373A (zh) * 2022-05-31 2022-07-22 攀枝花学院 集成式儿童安全座椅
TWI864427B (zh) * 2022-08-05 2024-12-01 越南商Ｕｎｉｔｅｄ Ｊｕｍｂｏ責任有限公司 棘輪扳手
CN115854919B (zh) * 2023-03-01 2023-05-30 成都市鸿侠科技有限责任公司 一种航空发动机叶片型面检测装置
US12459086B2 (en) * 2023-03-16 2025-11-04 Snap-On Incorporated Ratchet flex joint locking mechanism

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TWM244162U (en) * 2003-10-31 2004-09-21 Yung-Jung Shiu Two-way ratchet wrench
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EP1961521B1 (fr) 2002-11-01 2011-01-19 Hand Tool Design Corporation Outil de cliquet réversible avec arrêtoir amélioré
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US9089953B2 (en) 2015-07-28
CN104416509A (zh) 2015-03-18
JP2015042440A (ja) 2015-03-05
TW201524693A (zh) 2015-07-01
DE202013103841U1 (de) 2013-09-11
TWI630986B (zh) 2018-08-01
US20150053051A1 (en) 2015-02-26
HK1207840A1 (en) 2016-02-12
EP2851155A3 (fr) 2015-08-05

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