EP2813322A2 - Ratchet tool - Google Patents
Ratchet tool Download PDFInfo
- Publication number
- EP2813322A2 EP2813322A2 EP20140001416 EP14001416A EP2813322A2 EP 2813322 A2 EP2813322 A2 EP 2813322A2 EP 20140001416 EP20140001416 EP 20140001416 EP 14001416 A EP14001416 A EP 14001416A EP 2813322 A2 EP2813322 A2 EP 2813322A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- housing cover
- ratchet
- tool
- groove
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- 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
Definitions
- ratchet tools are used for tightening and loosening of screw connections, especially in mechanical engineering or tool making in assembly technology.
- the ratchet tools have a lever-shaped body. At one end of a handle is usually provided. At the other end a cup-shaped housing is arranged.
- Housing is the ratchet mechanism with a drive part.
- the ratchet mechanism includes a rotating member and a locking member.
- the drive part is fixed to the rotary part, provided that the rotary part does not itself at the same time forms the drive part.
- the blocking part allows the rotating part to rotate in one direction only. With a switch the direction of rotation can be set.
- the drive part is often designed as an external square profile on which plug-in tools are plugged in a form-fitting manner. These plug-in tools therefore have a suitable inner square profile.
- a ratchet or ratchet wrench with internal profile for screw drive.
- a Aufsteckratsche which is equally well suited for the tightening and loosening of screw.
- the Aufsteckratsche is designed switchable and allows safe transmission of even large torques. Due to their small outer dimensions, the ratchet ratchet allows use in confined mounting locations.
- a cylindrical ratchet body four pawls offset by 90 ° are arranged under spring pressure for right and left rotation, the two opposite pawls are intended for one direction of rotation and are brought for the purpose of changing direction by turning a reversing plate in or out of engagement with the ratchet wheel can.
- the use of two pawls each for one direction of rotation enables the transmission of large torques and ensures a balanced introduction of force when operated with a two-armed lever and thus a high level of safety against slipping.
- a ratcheting tool with a tool head wherein the tool head has an insert coupled to a ratchet mechanism for transmitting torques and placed on the insert or a screw ,
- the ratchet mechanism has a rotary part for torque transmission, which has a toothing on its front side, in which a locking element engages.
- the ratchet mechanism is arranged in a housing and / or provided a lever for transmitting power to the ratchet mechanism. The ratchet mechanism is thus protected against contamination.
- the DE 1778996 U discloses reversible sockets ratchets used to drive sockets and the like.
- the known ratchet can be used both for right-hand drive, as well as for left-hand drive.
- the respectively used drive direction is effected by a locking mechanism, which only takes the ratchet wheel in the desired drive direction.
- the WO 96/011774 discloses a ratchet wrench with intermeshing gears.
- the ratchet wrench includes a stem having a forward end and a rearward portion, the forward end having a housing with a stepped, circular opening and axially aligned first gear teeth within the stepped opening.
- the ratchet wrench has a cover plate which is connected to the front end of the shaft.
- An ergonomically shaped handle is arranged on the back of the rear part of the shaft to touch.
- the cover plate is assigned to the housing of the gear arrangement. It has one or more fasteners and serves to cover and depress a compression spring and to prevent the ingress of dirt or grease in the covered area.
- the ratchet mechanism is seated in the described prior art in a pot-like housing which is closed with a housing cover.
- the cover avoids, for example, that the ratchet gear dirty.
- the known ratchets or ratchets have the disadvantage that the cover with one or more screws or rivets is attached to the housing. With frequent use and vibration, such fasteners can easily solve. In the process, the entire ratchet mechanism, including the drive part and cover, then comes off the housing.
- ratchets or ratchets are relatively expensive and therefore expensive to manufacture. Because the housing must have suitable threaded holes and the screws are screwed in an additional operation.
- the object of the invention is therefore to avoid the disadvantages of the prior art and to provide a ratchet tool in which no small parts, such as screws or rivets, can solve.
- the advantage of the ratchet tool according to the invention is that no small parts can solve more. Especially in aircraft maintenance or aircraft construction, no small parts may get into the turbine blades. Such could destroy the turbines with catastrophic consequences. Often it did not even notice when a screw or rivet broke.
- the housing cover is no longer fastened with screws.
- the housing cover 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 cup-shaped housing.
- Tab-shaped fasteners engage in this groove-shaped recess to secure the housing cover to the housing of the ratchet tool. This can be avoided that small parts, such as screws or rivets are used to attach the housing cover.
- a fastening means such as a correspondingly wide designed snap ring
- the 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 cover firmly in its position without screws and the like.
- the housing cover of the ratcheting tool according to the invention 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 cover made of plastic can also be easily mounted on the housing of the ratchet tool, since the plastic is regularly elastic.
- the housing cover or the fastening means can then be easier to bring 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 plastic edge or a part of the plastic edge of the housing cover engages in the groove-shaped recess of the side wall of the housing ratchet tool for fastening for locking. Due to its elasticity, it is very useful to make the edge or part of the edge of the housing cover made of plastic. Because of its flexibility, this plastic edge can be more easily pressed or latched into the groove-shaped recess than, for example, a rigid metal edge.
- a particularly advantageous embodiment of the invention results from the fact that the edge of the housing cover has a Kliplippe, which is clipped as a fastening means in the groove-shaped recess of the housing of the ratcheting tool for closing.
- This type of attachment of the housing cover allows easy fixation on the housing, even with a non-elastic material for the housing cover.
- the Kliplippe engages the housing cover firmly on the housing and can be solved only with a special tool or by force from the housing wall.
- the groove-shaped recess of the side wall of the housing clips in to close it the housing cover.
- the groove-shaped recess may of course contain a mechanism so that it clasps into the housing cover. Basically, combinations of these variants are conceivable.
- An advantageous embodiment of the ratcheting tool according to the invention further consists in the housing cover having a plastic bottle which engages in inner recesses of the side wall of the housing for closing the housing.
- the inner recesses are provided on the inside of the housing.
- a particularly preferred embodiment of the ratchet tool according to the invention further results from the fact that the fastening means are designed as two fastening elements which attach the housing cover to the drive part of the ratchet mechanism, wherein the drive part is guided through the housing cover and through the housing, a first fastening element above the housing cover and a second fastener is disposed outside the housing.
- the attachment of the housing cover can thus be achieved solely by a fastening means, e.g. Circlips are provided above or outside the housing bottom on the drive part in the groove-shaped recess.
- the housing cover and the housing can each have a recess, so that the fastening means are arranged in the recess in order to increase the height unnecessarily.
- the fastening means arranged outside the housing stabilizes the hold of the housing cover on the drive part.
- a combination of the variant with the groove-shaped recess in the side wall is conceivable.
- the ratcheting tool is designed as a ratchet, wherein the drive member through an opening of the Housing cover is guided.
- Straight ratchets are particularly suitable for this type of housing covers. Because creaking are often used for example in the maintenance and installation of aircraft.
- the housing cover has the required static stability to absorb the forces of the drive member when operating the ratchet tool.
- ratcheting tool is designed as a ratchet wrench. This gives another application. Because it is not always a conventional ratchet desired, but also a ratchet wrench. Even with such tools, the problem arises that screws or rivets can solve. In this respect, this covers another application.
- An advantageous embodiment of the ratchet tool according to the invention results from the fact that the fastening means and / or the housing cover are provided for closing under tension.
- the fasteners and / or the housing cover are either biased due to their material or can be biased with additional clamping means.
- the tension prevents the housing cover from becoming loose in any way.
- the housing cover receives a the corresponding tight fit on the housing without screws or the like.
- a preferred variant of the ratchet tool according to the invention also results from the fact that the housing cover has an elastic mounting groove, which yields to the housing when mounting the housing cover.
- This mounting groove allows the edge of the housing cover can yield during mounting. Because of the mounting groove, the edge of the housing cover can be pressed in the direction of mounting groove, before it finally reaches the groove-shaped recess. As a result, the elasticity and stress of the inherently rigid housing cover is increased. This facilitates the installation of the housing cover considerably.
- the mounting groove can also be formed segment or section wise.
- Fig. 1 is denoted by 10 an inventive ratchet tool.
- the ratchet tool 10 comprises a cup-shaped housing 12 and a lever arm 14.
- the cup-shaped housing 12 is located at a front end 16 of the lever arm 14.
- the rear end 18 of the lever arm 14 is formed as a handle end.
- the cup-shaped housing 12 has a side wall 20 and a bottom 22. In this case, the bottom 22 has recesses 24 for receiving storage and / or controls.
- a ratchet mechanism not shown here, is provided in the housing 12 forms, with the ratchet mechanism, a tool head 26 of the ratcheting tool 10.
- the ratchet mechanism has a rotating member 50 (see FIG Fig. 10 ) for torque transmission.
- the rotary member is rotatably mounted in the housing 12 and is locked to a locking member in one direction of rotation. With a switching mechanism, the locked direction of rotation can be changed to transmit the torque.
- the rotary part is connected to a drive part 52 (see Fig. 10 ), which transmits the torque, for example, to a screw.
- a groove-shaped recess 28 In the upper region of the side wall 20 is a groove-shaped recess 28. This groove-shaped recess 28 serves to receive a housing cover 30 (see FIGS. 4 to 9 ). In this region of the side wall 20, a shoulder 31 is also provided for the housing cover 30, on which the housing cover 30 rests when closed.
- FIG. 2 the ratchet tool 10 is shown in perspective in a longitudinal section.
- the FIG. 2 otherwise corresponds to the FIG. 1 , Corresponding components are therefore identified with the same designations.
- regions 32 are additionally shown enlarged with the cross section of the groove-shaped recess 28.
- the groove-shaped recess 28 is designed such that it surrounds the edge of the housing cover 30.
- the housing cover 30 also rests on the shoulder 31 of the side wall 20.
- the housing cover 30 can not be released by itself in this case.
- the edge of the housing cover 30 is pressed into the groove-shaped recess 28 for mounting.
- the housing cover 30, as in the following FIGS. 4 to 9 is shown, consists wholly or partly of plastic.
- the housing cover 30 for mounting on a sufficient elasticity, so that it can be introduced into the groove-shaped recess 28.
- the groove-shaped recess 28 is divided into several sections 32.
- the groove-shaped recess 28 also has a slightly protruding Klipprand 34, which acts in cross-section as a kind of barb.
- Fig. 3 schematically shows a longitudinal section of the ratcheting tool 10 according to Fig. 1 respectively.
- Fig. 2 in a side view.
- Corresponding components with the previous figures are therefore identified by the same designations.
- the groove-shaped recess 28 the sections 32 is divided.
- the housing 12, as shown in the following figures, has the corresponding paragraphs 31 of the side wall 20, which are also divided into sections 33 (see also Fig. 2 ).
- Clip edge 34 of the housing cover 30 can engage or clasp in the sections 32 for fixing.
- Fig. 4 shows in a perspective schematic diagram of the housing cover 30 with Kliplippe 38 for the ratcheting tool 10 in a plan view.
- the Kliplippe 38 forms in the present embodiment, in part, the edge of the housing cover 30.
- a circular opening 40 is also provided in the housing cover 30, a circular opening 40 is also provided. Through this circular opening 40, the drive part 52 of the ratchet mechanism is guided in the assembled state of the ratcheting tool 10.
- the Klipplippe 38 is divided into sections 32. This Klipplippe 38 hooks in the groove-shaped Recess 28 with the Klipprand 34 of the side wall 20 of the housing of the ratchet mechanism 10th
- Fig. 5 schematically shows a perspective section through the housing cover 30 with the Kliplippe 38 according to Fig. 4 for the inventive ratcheting tool 10.
- the cross section is arcuate and has the function of a barb, which hooks into the groove-shaped recess 28 with the clip edge 34.
- Fig. 6 is the sake of completeness, the housing cover 30 with Kliplippe 38 according to 4 and 5 shown in perspective from a bottom view. If components correspond to previous figures and identical reference numerals are used.
- the Kliplippe 38 is arcuate in cross-section and opened in this view upwards.
- the Kliplippe 38 is preferably made of plastic. Other comparable materials that are elastic and flexible enough are also conceivable. It is important, however, that the Kliplippe 38 despite the flexibility has sufficient strength and stability.
- Fig. 7 shows in a perspective schematic diagram of a housing cover 30 with a plastic edge 42 for the ratchet tool 10 according to the invention in plan view.
- a plastic groove 44 is provided in the region of the plastic edge 42.
- the plastic rim 42 has sufficient space so that it can yield easily during installation.
- the plastic edge 42 presses namely during assembly into the housing 12 only in the plastic groove 44 before it then engages in the groove-shaped recess 28.
- the plastic groove 44 yields during assembly of the housing 12.
- Fig. 8 schematically shows a perspective section of the housing cover 30 with plastic edge 42 according to Fig. 7 for the ratcheting tool 10.
- the plastic edge 42 has in this housing cover 30 in cross section a nose-shaped projection 46. This nose-shaped projection 46 engages in the groove-shaped recess 28 of the housing 12th
- FIG. 9 is perspective view of the housing cover 30 with the nose-shaped projection 46 according to FIGS. 7 and 8 for a ratcheting tool 10 according to the invention from a bottom view. Therefore, corresponding components will be identified by the same reference numerals.
- the nose-shaped projection 46 of the edge 36 is divided into sections 33. Instead of the nose-shaped projection 46 or Klipplippe 38 of the rim 36, other shapes are conceivable, such as tabs, which engage in the groove-shaped recesses for attachment.
- Fig. 10 is shown in perspective part of a ratchet tool 10 designed as a ratchet. Approaching the lever arm 14 can be seen, on which the tool head 26 is arranged.
- the ratchet tool 10 has the ratchet mechanism disposed in the cup-shaped housing 12.
- the housing 12 is closed with the housing cover 30.
- a locking ring 54 holds the housing cover 30 fixed to the drive part 52.
- the drive part 52 has for this purpose a groove-shaped recess 56.
- the securing ring 54 is arranged in a recess 58 of the housing cover 30.
- a corresponding locking ring 54 is provided on the upper side of the housing 12, on the drive part 52 for locking (see also Fig. 11 ).
- Spirolox® rings are used as circlips.
- the driving part 52 is passed through the circular opening 40 in the housing cover 30.
- the drive part 52 is designed as an external square profile, so that corresponding Aufsteckwerkmaschinee can be attached with inner square profile.
- Fig. 11 is in perspective a part of a trained as a ratchet ratchet tool 10 accordingly Fig. 10 but shown from the top.
- the ratchet tool 10 has the ratchet mechanism disposed in the cup-shaped housing 12.
- the locking ring 54a with the opposite locking ring 54 on the outside of the housing cover 30, the housing cover 30 is attached to the drive member 52.
- the locking ring 54a counters the attachment.
- the drive part 52 has a groove-shaped recess 56a.
- the securing ring 54a is arranged in a recess 58a of the upper side of the housing 12.
- the driving part 52 is passed through the circular opening 40 in the housing cover 30 through an opening 62 of the housing top.
- 10 ratchet tool 12 pot-shaped housing 14 lever arm 16 front end of the lever arm 18 rear end of the lever arm 20 Side wall 22 ground 24 Recesses in the ground 26 tool head 28 groove-shaped recess 30 housing cover 31 paragraph 32 Subsections of the groove-shaped recess 33 Partial sections of the border 34 Clip edge of the groove-shaped recess 38 Kliplippe 40 circular opening in the housing cover 42 Plastic edge of the housing cover 44 Plastic groove 46 nose-shaped projection 50 turned part 52 driving part 54, 54a circlip 56, 56a groove-shaped recess of the drive part 58, 58a deepening 60 gear lever 62 Opening at the top of the housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Clamps And Clips (AREA)
- Devices For Opening Bottles Or Cans (AREA)
Abstract
Die Erfindung betrifft ein Ratschenwerkzeug (10) mit einem Hebelarm (16) und mit einem topfförmige Gehäuse (12) enthält. Das topfförmige Gehäuse (12) weist einen Boden (22) und wenigstens eine Seitenwand (20) auf, an welcher der Hebelarm (16) vorgesehen ist. In dem Gehäuse (12) ist ein Ratschenmechanismus angeordnet. Eine Gehäuseabdeckung (30), deckt den Ratschenmechanismus in dem Gehäuse (12) ab. Mit dem Ratschenmechanismus ist ein Antriebsteil (52) verbunden.The invention relates to a ratcheting tool (10) with a lever arm (16) and with a cup-shaped housing (12). The pot-shaped housing (12) has a bottom (22) and at least one side wall (20) on which the lever arm (16) is provided. In the housing (12) a ratchet mechanism is arranged. A housing cover (30) covers the ratchet mechanism in the housing (12). With the ratchet mechanism, a drive part (52) is connected.
Description
Die Erfindung betrifft ein Ratschenwerkzeug enthaltend:
- a) einen Hebelarm
- b) ein topfförmiges Gehäuse mit einem Boden und wenigstens einer Seitenwand, welches an dem Hebelarm vorgesehen ist,
- c) ein in dem Gehäuse angeordneter Ratschenmechanismus,
- d) eine Gehäuseabdeckung, welche den Ratschenmechanismus in dem Gehäuse abdeckt,
- e) ein Antriebsteil, welches mit dem Ratschenmechanismus verbunden ist.
- a) a lever arm
- b) a pot-shaped housing having a bottom and at least one side wall, which is provided on the lever arm,
- c) a ratchet mechanism disposed in the housing,
- d) a housing cover which covers the ratchet mechanism in the housing,
- e) a drive part which is connected to the ratchet mechanism.
Solche Ratschenwerkzeuge werden zum Anziehen und zum Lösen von Schraubverbindungen vor allem im Maschinen- oder Werkzeugbau in der Montagetechnik verwendet. Die Ratschenwerkzeuge verfügen dazu über einen hebelförmigen Grundkörper. An dessen einen Ende ist üblicherweise ein Griff vorgesehen. An dem anderen Ende ist ein topfförmiges Gehäuse angeordnet. In dem Gehäuse befindet sich der Ratschenmechanismus mit einem Antriebsteil. Der Ratschenmechanismus beinhaltet ein Drehteil und ein Sperrteil. Das Antriebsteil ist an dem Drehteil befestigt, sofern das Drehteil nicht selbst zugleich das Antriebsteil bildet. Das Sperrteil lässt das Drehteil nur in eine Richtung drehen. Mit einem Umschalter lässt sich die Drehrichtung jeweils einstellen. Das Antriebsteil ist häufig als ein Außenvierkantprofil ausgebildet, auf welchem Steckwerkzeuge formschlüssig aufgesteckt werden. Diese Steckwerkzeuge verfügen daher über ein geeignetes Innenvierkantprofil. Üblicherweise werden solche Werkzeuge auch als Knarren oder Ratschenringschlüssel mit Innenprofil zum Schraubenantrieb bezeichnet.Such ratchet tools are used for tightening and loosening of screw connections, especially in mechanical engineering or tool making in assembly technology. The ratchet tools have a lever-shaped body. At one end of a handle is usually provided. At the other end a cup-shaped housing is arranged. By doing Housing is the ratchet mechanism with a drive part. The ratchet mechanism includes a rotating member and a locking member. The drive part is fixed to the rotary part, provided that the rotary part does not itself at the same time forms the drive part. The blocking part allows the rotating part to rotate in one direction only. With a switch the direction of rotation can be set. The drive part is often designed as an external square profile on which plug-in tools are plugged in a form-fitting manner. These plug-in tools therefore have a suitable inner square profile. Usually, such tools are also referred to as a ratchet or ratchet wrench with internal profile for screw drive.
In der
In der
Die
Die
Der Ratschenmechanismus sitzt bei dem beschriebenen Stand der Technik in einem topfartigen Gehäuse, welches mit einer Gehäuseabdeckung verschlossen ist. Die Abdeckung vermeidet beispielsweise, dass das Ratschengetriebe verschmutzt. Die bekannten Knarren bzw. Ratschen haben aber den Nachteil, dass die Abdeckung mit einer oder mehreren Schrauben bzw. Nieten am Gehäuse befestigt ist. Bei häufigem Gebrauch und Vibrationen können sich solche Befestigungsmittel leicht lösen. Dabei löst sich dann der gesamte Ratschenmechanismus samt Antriebsteil und Deckel vom Gehäuse.The ratchet mechanism is seated in the described prior art in a pot-like housing which is closed with a housing cover. The cover avoids, for example, that the ratchet gear dirty. However, the known ratchets or ratchets have the disadvantage that the cover with one or more screws or rivets is attached to the housing. With frequent use and vibration, such fasteners can easily solve. In the process, the entire ratchet mechanism, including the drive part and cover, then comes off the housing.
Ein weiterer Nachteil der Knarren bzw. Ratschen, wie sie aus dem Stand der Technik bekannt sind, besteht darin, dass sie relativ aufwendig und damit teuer in der Herstellung sind. Denn die Gehäuse müssen geeignete Gewindebohrungen aufweisen und die Schrauben in einem zusätzlichen Arbeitsgang eingeschraubt werden.Another disadvantage of the ratchets or ratchets, as they are known from the prior art, is that they are relatively expensive and therefore expensive to manufacture. Because the housing must have suitable threaded holes and the screws are screwed in an additional operation.
Aufgabe der Erfindung ist es daher, die Nachteile des Standes der Technik zu vermeiden und ein Ratschenwerkzeug zu schaffen, bei dem sich keine Kleinteile, wie Schrauben oder Nieten, lösen können.The object of the invention is therefore to avoid the disadvantages of the prior art and to provide a ratchet tool in which no small parts, such as screws or rivets, can solve.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass bei einem Ratschenwerkzeug der eingangs genannten Art
- f) die Seitenwand des Gehäuses und/oder das Antriebsteil eine nutenförmige Ausnehmung aufweisen, in welcher Befestigungsmittel zur Befestigung der Gehäuseabdeckung vorgesehen sind.
- f) the side wall of the housing and / or the drive part have a groove-shaped recess, in which fastening means are provided for fastening the housing cover.
Der Vorteil bei dem erfindungsgemäßen Ratschenwerkzeug besteht darin, dass sich keine Kleinteile mehr lösen können. Besonders bei der Flugzeugwartung bzw. beim Flugzeugbau dürfen keine Kleinteile in die Turbinenschaufeln gelangen. Solche könnten die Turbinen mit katastrophalen Folgen zerstören. Oft fiel es gar nicht auf, wenn sich eine Schraube oder Niete löste. Bei dem erfindungsgemäßen Ratschenwerkzeug ist die Gehäuseabdeckung nicht mehr mit Schrauben befestigt. Die Gehäuseabdeckung wird mit Befestigungsmitteln in einer Nut der Seitenwand des Gehäuses bzw. des Antriebsteils fixiert. Die nutenförmige Ausnehmung befindet sich üblicherweise auf der Innenseite des topfförmigen Gehäuses. Laschenförmige Befestigungsmittel greifen in diese nutenförmige Ausnehmung um die Gehäuseabdeckung am Gehäuse des Ratschenwerkzeugs zu befestigen. Dadurch kann vermieden werden, dass Kleinteile, wie Schrauben oder Nieten zum Befestigen der Gehäuseabdeckung verwendet werden. Diese können sich nämlich im schlimmsten Fall lösen. Durch eine Nut in dem Antriebsteil kann ein Befestigungsmittel, wie z.B. ein entsprechend breit ausgelegter Sprengring, die Gehäuseabdeckung an dem Gehäuse fixieren. Der Sprengring sitzt dabei in der nutenförmigen Ausnehmung des Antriebsteils und kann somit nicht mehr verrutschen. Dies hält die Gehäuseabdeckung fest in seiner Position ohne Schrauben und dergleichen.The advantage of the ratchet tool according to the invention is that no small parts can solve more. Especially in aircraft maintenance or aircraft construction, no small parts may get into the turbine blades. Such could destroy the turbines with catastrophic consequences. Often it did not even notice when a screw or rivet broke. In the ratcheting tool according to the invention, the housing cover is no longer fastened with screws. The housing cover 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 cup-shaped housing. Tab-shaped fasteners engage in this groove-shaped recess to secure the housing cover to the housing of the ratchet tool. This can be avoided that small parts, such as screws or rivets are used to attach the housing cover. These can in fact solve themselves in the worst case. Through a groove in the drive part, a fastening means, such as a correspondingly wide designed snap ring, the 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 cover firmly in its position without screws and the like.
In einer bevorzugten Ausgestaltung der Erfindung ist die Gehäuseabdeckung des erfindungsgemäßen Ratschenwerkzeugs ganz oder teilweise aus Kunststoff vorgesehen. Dies ist vorteilhaft bei der Herstellung. Ein Spritzgussteil lässt sich schnell und kostengünstig erstellen. Die Gehäuseabdeckung aus Kunststoff lässt sich zudem auf einfache Weise am Gehäuse des Ratschenwerkzeugs montieren, da der Kunststoff regelmäßig elastisch ist. Die Gehäuseabdeckung bzw. die Befestigungsmittel lassen sich dann leichter in die nutenförmige Ausnehmung einbringen. Die Elastizität hat zudem den Vorteil, dass der Kunststoff dämpfend wirkt und Vibrationen aufnimmt. Bei der Montage ermüdet der Arm des Monteurs somit nicht so schnell.In a preferred embodiment of the invention, the housing cover of the ratcheting tool according to the invention 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 cover made of plastic can also be easily mounted on the housing of the ratchet tool, since the plastic is regularly elastic. The housing cover or the fastening means can then be easier to bring 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.
Vorzugsweise greift zum Verschließen ein Kunststoffrand oder ein Teil des Kunststoffrandes der Gehäuseabdeckung in die nutförmige Ausnehmung der Seitenwand des Gehäuses Ratschenwerkzeug zur Befestigung ein. Aufgrund seiner Elastizität ist es sehr zweckmäßig den Rand oder einen Teil des Randes der Gehäuseabdeckung aus Kunststoff herzustellen. Denn dieser Kunststoffrand lässt sich wegen seiner Flexibilität einfacher in die nutenförmige Ausnehmung eindrücken bzw. einrasten, als beispielsweise ein starrer Metallrand.Preferably, a plastic edge or a part of the plastic edge of the housing cover engages in the groove-shaped recess of the side wall of the housing ratchet tool for fastening for locking. Due to its elasticity, it is very useful to make the edge or part of the edge of the housing cover made of plastic. Because of its flexibility, this plastic edge can be more easily pressed or latched into the groove-shaped recess than, for example, a rigid metal edge.
Eine besonders vorteilhafte Ausgestaltung der Erfindung ergibt sich dadurch, dass der Rand der Gehäuseabdeckung eine Kliplippe aufweist, welche als Befestigungsmittel in die nutförmige Ausnehmung des Gehäuses des Ratschenwerkzeugs zum Verschließen eingeklipst ist. Diese Art der Befestigung der Gehäuseabdeckung ermöglicht die einfache Fixierung am Gehäuse, auch bei einem nicht elastischen Material für die Gehäuseabdeckung. Die Kliplippe rastet die Gehäuseabdeckung fest an dem Gehäuse ein und lässt sich nur mit einem speziellen Werkzeug bzw. mit Gewalt von der Gehäusewand lösen.A particularly advantageous embodiment of the invention results from the fact that the edge of the housing cover has a Kliplippe, which is clipped as a fastening means in the groove-shaped recess of the housing of the ratcheting tool for closing. This type of attachment of the housing cover allows easy fixation on the housing, even with a non-elastic material for the housing cover. The Kliplippe engages the housing cover firmly on the housing and can be solved only with a special tool or by force from the housing wall.
In einer weiteren vorteilhaften Variante des erfindungsgemäßen Ratschenwerkzeugs klippst die nutförmige Ausnehmung der Seitenwand des Gehäuses zum Verschließen in die Gehäuseabdeckung ein. Einerseits besteht so die Möglichkeit, dass die Gehäuseabdeckung bzw. ihr Rand oder ein Teil ihres Randes in die nutenförmige Ausnehmung einklipst, andererseits kann natürlich umgekehrt auch die nutenförmige Ausnehmung einen Mechanismus enthalten, damit diese in die Gehäuseabdeckung einklipst. Grundsätzlich sind auch Kombinationen dieser Varianten denkbar.In a further advantageous variant of the ratcheting tool according to the invention, the groove-shaped recess of the side wall of the housing clips in to close it the housing cover. On the one hand, there is the possibility that the housing cover or its edge or part of its edge is clipped into the groove-shaped recess, on the other hand, of course, the groove-shaped recess may of course contain a mechanism so that it clasps into the housing cover. Basically, combinations of these variants are conceivable.
Eine vorteilhafte Ausgestaltung des erfindungsgemäßen Ratschenwerkzeugs besteht ferner darin, die Gehäuseabdeckung eine Kunststofflasche aufweist, welche in innere Ausnehmungen der Seitenwand des Gehäuses zum Verschließen des Gehäuses eingreift. Dabei sind die inneren Ausnehmungen auf der Innenseite des Gehäuses vorgesehen. Sobald Laschen der Gehäuseabdeckung in diese Ausnehmungen eingefügt sind, ist ein besonders guter, sicherer und fester Sitz der Gehäuseabdeckung gewährleistet. Im Übrigen erreicht man hierdurch eine einfache Montage der Gehäuseabdeckung auf dem Gehäuse des Ratschenwerkzeugs.An advantageous embodiment of the ratcheting tool according to the invention further consists in the housing cover having a plastic bottle which engages in inner recesses of the side wall of the housing for closing the housing. The inner recesses are provided on the inside of the housing. As soon as tabs of the housing cover are inserted into these recesses, a particularly good, secure and firm fit of the housing cover is ensured. Incidentally, this achieves a simple assembly of the housing cover on the housing of the ratchet tool.
Eine besonders bevorzugte Ausgestaltung des erfindungsgemäßen Ratschenwerkzeugs ergibt sich ferner daraus, dass die Befestigungsmittel als zwei Befestigungselemente ausgebildet sind, welche die Gehäuseabdeckung an dem Antriebsteil des Ratschenmechanismus befestigen, wobei das Antriebsteil durch die Gehäuseabdeckung und durch das Gehäuse geführt ist, ein erstes Befestigungselement oberhalb der Gehäuseabdeckung und ein zweites Befestigungselement außerhalb des Gehäuses angeordnet ist. Die Befestigung der Gehäuseabdeckung kann somit alleine dadurch erzielt werden, dass ein Befestigungsmittel, z.B. Sicherungsringe, oberhalb bzw. außerhalb der Gehäuseunterseite an dem Antriebsteil in der nutenförmigen Ausnehmung vorgesehen sind. Die Gehäuseabdeckung und auch das Gehäuse können dabei jeweils eine Vertiefung aufweisen, so dass die Befestigungsmittel in der Vertiefung angeordnet sind, um die Bauhöhe unnötig zu erhöhen. Das außerhalb des Gehäuses angeordnete Befestigungsmittel stabilisiert den Halt der Gehäuseabdeckung am Antriebsteil. Natürlich ist auch eine Kombination der Variante mit der nutenförmigen Ausnehmung in der Seitenwand denkbar.A particularly preferred embodiment of the ratchet tool according to the invention further results from the fact that the fastening means are designed as two fastening elements which attach the housing cover to the drive part of the ratchet mechanism, wherein the drive part is guided through the housing cover and through the housing, a first fastening element above the housing cover and a second fastener is disposed outside the housing. The attachment of the housing cover can thus be achieved solely by a fastening means, e.g. Circlips are provided above or outside the housing bottom on the drive part in the groove-shaped recess. The housing cover and the housing can each have a recess, so that the fastening means are arranged in the recess in order to increase the height unnecessarily. The fastening means arranged outside the housing stabilizes the hold of the housing cover on the drive part. Of course, a combination of the variant with the groove-shaped recess in the side wall is conceivable.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung, ist das Ratschenwerkzeug als Knarre ausgebildet, wobei das Antriebsteil durch eine Öffnung der Gehäuseabdeckung geführt ist. Gerade Knarren sind für diese Art von Gehäuseabdeckungen besonders geeignet. Denn Knarren werden beispielsweise häufig bei der Wartung und Montage von Flugzeugen eingesetzt. Dabei weist die Gehäuseabdeckung die erforderliche statische Stabilität auf, um die Kräfte des Antriebsteils beim Betätigen des Ratschenwerkzeugs aufzunehmen.In a further advantageous embodiment of the invention, the ratcheting tool is designed as a ratchet, wherein the drive member through an opening of the Housing cover is guided. Straight ratchets are particularly suitable for this type of housing covers. Because creaking are often used for example in the maintenance and installation of aircraft. In this case, the housing cover has the required static stability to absorb the forces of the drive member when operating the ratchet tool.
Eine weitere vorteilhafte Variante besteht darin, dass das Ratschenwerkzeug als Ratschenringschlüssel ausgebildet ist. Damit erhält man eine weitere Anwendungsmöglichkeit. Denn es ist nicht immer eine herkömmliche Knarre gewünscht, sondern auch ein Ratschenringschlüssel. Auch bei solchen Werkzeugen ergibt sich das Problem, dass Schrauben oder Nieten sich lösen können. Insofern wird hierdurch ein weiterer Anwendungsfall abgedeckt.A further advantageous variant is that the ratcheting tool is designed as a ratchet wrench. This gives another application. Because it is not always a conventional ratchet desired, but also a ratchet wrench. Even with such tools, the problem arises that screws or rivets can solve. In this respect, this covers another application.
Eine vorteilhafte Ausgestaltung des erfindungsgemäßen Ratschenwerkzeugs ergibt sich dadurch, dass die Befestigungsmittel und/oder die Gehäuseabdeckung zum Verschließen unter Spannung vorgesehen sind. Die Befestigungsmittel und/oder die Gehäuseabdeckung sind entweder aufgrund ihres Materials vorgespannt oder lassen sich mit zusätzlichen Spannmitteln vorspannen. Die Spannung verhindert, dass sich die Gehäuseabdeckung in irgendeiner Weise lösen kann. Die Gehäuseabdeckung erhält einen dem entsprechenden festen Sitz am Gehäuse ohne Schrauben oder dgl.An advantageous embodiment of the ratchet tool according to the invention results from the fact that the fastening means and / or the housing cover are provided for closing under tension. The fasteners and / or the housing cover are either biased due to their material or can be biased with additional clamping means. The tension prevents the housing cover from becoming loose in any way. The housing cover receives a the corresponding tight fit on the housing without screws or the like.
Eine bevorzugte Variante des erfindungsgemäßen Ratschenwerkzeugs ergibt sich ferner dadurch, dass die Gehäuseabdeckung eine elastische Montagerille aufweist, welche beim Montieren der Gehäuseabdeckung an das Gehäuse nachgibt. Diese Montagerille ermöglicht, dass der Rand der Gehäuseabdeckung beim Montieren nachgeben kann. Durch die Montagerille lässt sich der Rand der Gehäuseabdeckung nämlich in Richtung Montagerille drücken, bevor er schließlich in die nutenförmige Ausnehmung gelangt. Hierdurch wird die Elastizität und Spannung der an sich starren Gehäuseabdeckung erhöht. Dies erleichtert die Montage der Gehäuseabdeckung erheblich. Die Montagerille kann zudem Segment- bzw. Abschnittsweise ausgebildet sein.A preferred variant of the ratchet tool according to the invention also results from the fact that the housing cover has an elastic mounting groove, which yields to the housing when mounting the housing cover. This mounting groove allows the edge of the housing cover can yield during mounting. Because of the mounting groove, the edge of the housing cover can be pressed in the direction of mounting groove, before it finally reaches the groove-shaped recess. As a result, the elasticity and stress of the inherently rigid housing cover is increased. This facilitates the installation of the housing cover considerably. The mounting groove can also be formed segment or section wise.
Weitere Ausgestaltungen und Vorteile ergeben sich aus dem Gegenstand der Unteransprüche, sowie den Zeichnungen mit den dazugehörigen Beschreibungen. Ein Ausführungsbeispiel ist nachstehend unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert.Further embodiments and advantages will become apparent from the subject of the dependent claims, as well as the drawings with the accompanying descriptions. One Embodiment is explained below with reference to the accompanying drawings.
- Fig. 1Fig. 1
- zeigt in einer perspektivischen Prinzipskizze ein topfförmiges Gehäuse ohne Gehäuseabdeckung eines erfindungsgemäßen Ratschenwerkzeugs mit Hebelarm.shows in a perspective schematic diagram of a cup-shaped housing without housing cover of a ratchet tool according to the invention with lever arm.
- Fig. 2Fig. 2
-
zeigt schematisch einen perspektivischen Längsschnitt des Ratschenwerkzeugs gemäß
Fig. 1 mit zwei vergrößerten Ausschnitten der Seitenwand des Gehäuses.schematically shows a perspective longitudinal section of the ratchet tool according toFig. 1 with two enlarged sections of the side wall of the housing. - Fig.3Figure 3
-
zeigt schematisch einen Längsschnitt des Ratschenwerkzeugs gemäß
Fig. 1 in einer Seitenansicht.schematically shows a longitudinal section of the ratchet tool according toFig. 1 in a side view. - Fig. 4Fig. 4
- zeigt in einer perspektivischen Prinzipskizze eine Gehäuseabdeckung mit Kliplippe für ein erfindungsgemäßes Ratschenwerkzeug in Draufsicht.shows in a perspective schematic diagram of a housing cover with Kliplippe for a ratcheting tool according to the invention in plan view.
- Fig. 5Fig. 5
-
zeigt schematisch einen perspektivischen Schnitt der Gehäuseabdeckung mit Kliplippe gemäß
Fig. 4 für ein erfindungsgemäßes Ratschenwerkzeug.schematically shows a perspective section of the housing cover with Kliplippe according toFig. 4 for a ratchet tool according to the invention. - Fig. 6Fig. 6
-
zeigt perspektivisch die Gehäuseabdeckung mit Kliplippe gemäß
Fig. 4 und 5 für ein erfindungsgemäßes Ratschenwerkzeug von einer Unteransicht.shows in perspective the housing cover with Kliplippe according to4 and 5 for a ratcheting tool according to the invention from a bottom view. - Fig. 7Fig. 7
- zeigt in einer perspektivischen Prinzipskizze eine Gehäuseabdeckung mit Kunststoffrand für ein erfindungsgemäßes Ratschenwerkzeug in Draufsicht.shows in a perspective schematic diagram of a housing cover with plastic edge for a ratcheting tool according to the invention in plan view.
- Fig. 8Fig. 8
-
zeigt schematisch einen perspektivischen Schnitt der Gehäuseabdeckung mit Kunststoffrand gemäß
Fig. 7 für ein erfindungsgemäßes Ratschenwerkzeug.schematically shows a perspective section of the housing cover with plastic edge according toFig. 7 for a ratchet tool according to the invention. - Fig. 9Fig. 9
-
zeigt perspektivisch die Gehäuseabdeckung mit Kliplippe gemäß
Fig. 7 und 8 für ein erfindungsgemäßes Ratschenwerkzeug von einer Unteransicht.shows in perspective the housing cover with Kliplippe according toFIGS. 7 and 8 for a ratcheting tool according to the invention from a bottom view. - Fig. 10Fig. 10
- zeigt perspektivisch einen Teil eines als Knarre ausgebildeten Ratschenwerkzeugs.shows in perspective a part of a ratchet tool designed as a ratchet.
- Fig. 11Fig. 11
-
zeigt perspektivisch einen Teil des als Knarre ausgebildeten Ratschenwerkzeugs gemäß
Fig. 10 von der Oberseite.shows in perspective a part of the ratchet tool designed as a ratchet according toFig. 10 from the top.
In
Im oberen Bereich der Seitenwand 20 befindet sich eine nutenförmige Ausnehmung 28. Diese nutenförmige Ausnehmung 28 dient zur Aufnahme einer Gehäuseabdeckung 30 (siehe
In
In
In
In
In
Claims (11)
dadurch gekennzeichnet, dass
characterized in that
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201320102518 DE202013102518U1 (en) | 2013-06-12 | 2013-06-12 | ratchet tool |
Publications (3)
Publication Number | Publication Date |
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EP2813322A2 true EP2813322A2 (en) | 2014-12-17 |
EP2813322A3 EP2813322A3 (en) | 2015-06-24 |
EP2813322B1 EP2813322B1 (en) | 2018-08-08 |
Family
ID=48868670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP14001416.8A Active EP2813322B1 (en) | 2013-06-12 | 2014-04-17 | Ratchet tool |
Country Status (3)
Country | Link |
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EP (1) | EP2813322B1 (en) |
DE (1) | DE202013102518U1 (en) |
ES (1) | ES2694126T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113508010A (en) * | 2019-03-05 | 2021-10-15 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Torque tool |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202013103841U1 (en) * | 2013-08-26 | 2013-09-11 | Eduard Wille Gmbh & Co. Kg | Ratchet with fine toothing |
TWI743439B (en) | 2019-01-24 | 2021-10-21 | 豐造工業股份有限公司 | Ratchet wrench |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1778996U (en) | 1958-10-08 | 1958-12-04 | Ver Beckersche Werkzeugfab | SWITCHABLE SOCKET RATCHET. |
WO1996011774A1 (en) | 1994-10-13 | 1996-04-25 | George Hillinger | Ratcheting socket wrench with intermeshing gears |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520697A (en) * | 1982-09-29 | 1985-06-04 | Moetteli John B | Ratchet wrench |
DD231025A1 (en) | 1984-06-18 | 1985-12-18 | Herbert Holland | SWITCHABLE ROCKET |
TWM429562U (en) * | 2012-01-11 | 2012-05-21 | Chi Pan Prec Tool Co Ltd | Direction switching control structure for ratchet wrench |
DE202012104413U1 (en) | 2012-11-15 | 2012-11-22 | Eduard Wille Gmbh & Co. Kg | Ratchet and ratchet mechanism |
-
2013
- 2013-06-12 DE DE201320102518 patent/DE202013102518U1/en not_active Expired - Lifetime
-
2014
- 2014-04-17 EP EP14001416.8A patent/EP2813322B1/en active Active
- 2014-04-17 ES ES14001416.8T patent/ES2694126T3/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1778996U (en) | 1958-10-08 | 1958-12-04 | Ver Beckersche Werkzeugfab | SWITCHABLE SOCKET RATCHET. |
WO1996011774A1 (en) | 1994-10-13 | 1996-04-25 | George Hillinger | Ratcheting socket wrench with intermeshing gears |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113508010A (en) * | 2019-03-05 | 2021-10-15 | 哈蔡特沃克霍曼泽维有限责任两合公司 | Torque tool |
EP3934848B1 (en) * | 2019-03-05 | 2023-06-07 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Torque tool |
Also Published As
Publication number | Publication date |
---|---|
EP2813322A3 (en) | 2015-06-24 |
DE202013102518U1 (en) | 2013-06-24 |
EP2813322B1 (en) | 2018-08-08 |
ES2694126T3 (en) | 2018-12-18 |
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