EP2995424B1 - Pince - Google Patents

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Publication number
EP2995424B1
EP2995424B1 EP14184375.5A EP14184375A EP2995424B1 EP 2995424 B1 EP2995424 B1 EP 2995424B1 EP 14184375 A EP14184375 A EP 14184375A EP 2995424 B1 EP2995424 B1 EP 2995424B1
Authority
EP
European Patent Office
Prior art keywords
counting device
pliers
threshold
manual pliers
strokes
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.)
Active
Application number
EP14184375.5A
Other languages
German (de)
English (en)
Other versions
EP2995424A1 (fr
Inventor
Thomas Glockseisen
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.)
Wezag GmbH and Co KG
Original Assignee
Wezag GmbH Werkzeugfabrik
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 Wezag GmbH Werkzeugfabrik filed Critical Wezag GmbH Werkzeugfabrik
Priority to EP14184375.5A priority Critical patent/EP2995424B1/fr
Priority to CN201510559338.5A priority patent/CN105415221B/zh
Priority to TW104129630A priority patent/TWI649167B/zh
Priority to JP2015178203A priority patent/JP2016055428A/ja
Priority to US14/851,230 priority patent/US9864948B2/en
Publication of EP2995424A1 publication Critical patent/EP2995424A1/fr
Application granted granted Critical
Publication of EP2995424B1 publication Critical patent/EP2995424B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • G06M3/06—Counters with additional facilities for printing or separately displaying result of count
    • 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
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • G06M3/02—Counters with additional facilities for performing an operation at a predetermined value of the count, e.g. arresting a machine
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/14—Quality control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H01R43/0486—Crimping apparatus or processes with force measuring means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H01R43/0421—Hand tools for crimping combined with other functions, e.g. cutting

Definitions

  • the invention relates to a hand tool, which may be any non-power-operated, but manually operated by a user pliers.
  • the pliers can be operated in one-handed operation or two-hand operation.
  • it may be in the pliers to a cutting pliers, a crimping pliers or crimping pliers (especially crimping pliers for sealing pressing of pipe joints), hole pliers u. act.
  • a crimping tool without this being intended to limit the invention to this type of crimping tool.
  • a pressing tongs with a force measuring device, which is designed as a piezoelectric force sensor or strain gauges.
  • the force measuring device is arranged on the outside of a press ram or within a press ram or in a press receptacle.
  • the pressing tongs are equipped with a transmitter, which is mounted above the press ram on the pressing tongs head.
  • the transmitter emits a wireless press force signal, which is received and evaluated by an external receiving and evaluating device.
  • the transmitter can be switched on and off via control elements.
  • the frequency of the transmitter can be specified via the operating elements.
  • an energy source in the form of an electric battery or a rechargeable battery for powering the transmitter and the force measuring device is integrated.
  • the transmitter has an induction coil in which an external magnetic field can generate an induction current to recharge the accumulator.
  • the crimping pliers with a solar cell, via which alternatively the recharging of the accumulator can take place.
  • the power supply of the force measuring device and the transmitter via a temporary cable connection.
  • the pressing tongs has a display device to which a pressing force, a transmission frequency, an indication of the existence of a wireless connection, a state of charge of the accumulator u. ⁇ . can be displayed.
  • the display device can be designed as an LED or LCD display device.
  • a displacement measuring system for detecting the working stroke of the pressing tongs can be provided on the pressing tongs.
  • the pressing tongs may have a ratchet device or a slipping clutch which limits the applicable pressing force to a predetermined value.
  • the receiving and evaluating device can be designed, for example, as a commercially available PC with a Bluetooth receiver. It is also possible to use a database in which received signals are stored in order to reliably and permanently document the quality of the produced press connections.
  • the publication DE 298 06 179 U1 also describes measures for documenting a progression of a pressing force as a function of a pressing path. In this case, both the pressing force and the pressing travel in the region of the mouth of the forceps or in an intermediate part of a lever drive of the pressing tongs are measured.
  • An evaluation circuit can be provided on the pressing tongs with a suitable display for displaying information about the quality of the pressing process.
  • the pressing tongs may have a data memory in which force-displacement profiles can be stored for different types of press-fit connections, in particular different contact types.
  • a visual display device a light-emitting diode display or a liquid crystal display can be used.
  • a signal output via an acoustic display device can be used.
  • a wired or optical interface or any possible air-transmitted interface which uses electromagnetic radiation in the visible, infrared or radio range, proposed, whereby a bidirectional interface can be used.
  • An evaluation of the pressing force curve can be made by comparison with a predetermined pressing force curve, if necessary with a predetermined tolerance range, done.
  • the publication DE-OS 2 316 769 describes a non-generic pressing machine in which a counter the number of executed strokes should be read without explaining how the number of strokes is recorded and for what purpose the counter should be displayed.
  • DE 297 03 052 U1 describes accordingly a counting memory for recording the number of performed pressing in a non-generic pressing machine with electric drive. An indication of the number of compressions performed should alert an operator to the achievement of a maintenance interval. After a maintenance performed then the count is to be deleted again, which then the counting procedure should start again.
  • the publication DE 10 2011 050 718 A1 proposes a method for monitoring the wear of a press or crimping tool, which is intended to detect the different pressing forces and the resulting different wear during pressing on the one hand small workpieces and on the other hand larger workpieces.
  • the crimping tool has an adjusting device by means of which the distance between the pressing elements achieved when the crimping tool is fully closed is set. The set distance is fed to a microcontroller system of the crimping tool. Furthermore, the microcontroller system, the signal of an arranged on abutment surfaces of the hand lever limit switch is supplied, which triggers a count when the hand lever are fully closed.
  • a wear prediction value stored in a memory predicts a wear caused by a completely continuous actuation stroke as a function of the distance preset by the adjustment device.
  • the wear prediction value can be determined empirically by experiments be determined based on experience or be deposited as mathematical functions.
  • the wear prediction values are summed up by passing through several closing strokes of the crimping tool. If the accumulated total wear value reaches a defined limit value, then a request is issued for calibration of the crimping tool, which can take place via an indicator present on the crimping tool, an acoustic signal or a mechanical lock.
  • the limit value can be defined by a standard to be complied with or specified by the manufacturer.
  • an actual wear is determined by the calibration, which can then be stored in a memory of the crimping tool and can be displayed on the display, which can also be done in conjunction with a residual usage indicator in%. Then a reset of the accumulated total wear value can take place. Then the summation of the wear prediction values takes place again until a further limit value is reached with renewed request for calibration. If a total service life has been reached, a warning message can be displayed or a mechanical locking of the crimping tool takes place.
  • a sensor may be provided which detects the crimping force in order to be able to hide blank operation of the crimping tool, in which no wear of the crimping tool occurs.
  • the publication US 2010/0293720 A1 describes a crimping tool, in which a counting device is integrated into a U-shaped recess of the hand lever in the end region of a hand lever facing the pliers head.
  • the counter has a housing, a cover, an LCD display, a reed sensor and a controller.
  • the other hand lever carries on the first hand lever facing side a permanent magnet whose approach to the reed sensor with the passage of a closing stroke of the hand lever triggers a count.
  • the publication DE 14 90 170 A1 relates to a so-called "hand-picking device", which is not designed as a hand-held pliers, but is designed pistol-like with a handle and a relative to the handle pivotable, the "trigger" of the pistol-like shape forming actuating lever.
  • the actuating lever acts via a reversing lever, an actuating tappet, a locking toothing and a cam drive on an acted upon by a spring assembly actuating lever for generating the bead.
  • the counting of the complete passage of a closing stroke takes place here via a mechanical counting device.
  • the invention has for its object to propose a pair of pliers with advanced options in terms of monitoring the proper operation of the pliers.
  • the invention is based on the finding that although the monitoring of an actuating force of a hand tool, in particular a pressing force, or the monitoring of a pressing force-Pressweg-course may be advantageous in terms of ensuring a desired result of processing a workpiece by the hand tool.
  • the hand tool in particular its drive mechanism and its dies, are in perfect condition. But if, for example, a wear of a die of the pliers occurred or has a bearing clearance of the drive mechanism changed, the work result of the pliers may differ from the desired result, even if u. U. the prescribed press force profile has been brought about.
  • regular calibrations or checks of the condition of the pliers are carried out.
  • the frequency of use of the same hand tools with different customers or even different employees of the same customer may be different, so that when choosing the intervals for the certification according to the highest frequency of use unnecessary certification effort may arise or to reduce unnecessary certification effort staff or customer-dependent intervals would be set.
  • a hand-held pliers of the type described above be equipped with a counting device by means of which the working strokes passed by the manual pliers are counted.
  • the invention is based on the surprising finding that the use of a counting device, as is well known for complex presses with a power-operated drive such as an electric drive, is also possible for a hand tool, which in terms of equipment complexity and the usual dimensions, the Clock speeds and the drive deviates seriously from a pressing machine. While in press machines detection of the pressing force and u. U.
  • the senor may detect the distance of hand levers, jaws or any components of the drive mechanism whose motion correlates with passage of the power stroke.
  • the sensor is thus not a force sensor use, but a displacement or distance sensor, which is in terms of integration into a hand pliers, the space conditions, the robustness, the cost and the Reliability has proven to be advantageous.
  • the sensor can detect the distance over the entire working stroke or a part of the working stroke, preferably in the initial region of the working stroke or in the end region of the working stroke, whereby the detection, provision and / or processing of a signal provided by the sensor continuously, digitally or ( in the manner of a switch) can be binary.
  • any distance sensor can be used. This can be designed as a contact sensor or as a contactless sensor.
  • This can be designed as a contact sensor or as a contactless sensor.
  • the counter is formed with a module (or is formed with two modules which are each assigned to a hand lever).
  • a control unit at least one line connection in the form of a cable, a circuit board, a transmitter, a receiver, a display device, a battery or a rechargeable battery and / or a connection for a power supply and / or data transmission can be integrated in the module or one of the modules ,
  • the said components are encapsulated with a suitable material, such as synthetic resin or any flowable or pasty and thermosetting material, into a kind of block.
  • a potted module can then be stored and provided as semi-finished in the production of the hand tool.
  • Susceptible wiring or other components may be protected by potting the module against mechanical damage, dirt, moisture or shock. It is also possible that the assembly of the module is simplified with the other components of the hand tool by the module as a whole in operative connection with the component to which it is to be mounted, or brought into a specific recess thereof or introduced and then as Whole is attached. It is unnecessary u.
  • U. also several separate fasteners of the control unit, the line connections, the board, the transmitter, the receiver, the display device and / or the battery or the accumulator.
  • UU also disassembly of such a molded module as a whole is facilitated and simplified the replacement of a repair or replacement module or a module of another type.
  • the counter can be integrated into any components of the hand tool.
  • the counter is arranged in the region of a pliers head of the hand tool.
  • the counter is integrated in the hand lever of the hand tool, including the integration of at least one module of the counter is at least partially subsumed in at least one hand lever.
  • the hand lever of the hand tool provide a large installation space in this direction in view of their large extent in the longitudinal direction.
  • the hand lever usually perform a greater movement over the power stroke than, for example, the jaws, so that when detecting the distance of the hand lever to count the traversed strokes a relatively coarse measuring sensor device can be used or a high accuracy can be achieved.
  • two modules of the counter are respectively arranged on the mutually facing sides of the hand lever or integrated into it, whereby these relatively far approach or even touch at the end of the working stroke, bringing the variety of usable sensors u. U. is increased.
  • At least one module protrudes from a hand lever in the direction of the other hand lever to reduce the distance of the respectively associated with the two hand lever modules, and / or that the hand lever (or both hand lever) a bend, a web or extension in Has direction of the other hand lever, in which the module is integrated while reducing the distance to the other hand lever.
  • the bend, the web or extension and thus also the module through a recess of the other hand lever extend through, then in the region of the recess, the other module is integrated into the other hand lever and the two modules interact with each other to generate the measurement signal.
  • Another advantage of the integration of the counter in the hand lever of the hand tool can be that usually the pliers head is exposed to harsher operating conditions than the hand lever of the pliers, so here u. U. sensitive counting device is not easily damaged.
  • a protection of the counter can be done by the hand lever of the hand tool with integration of the counter in the same.
  • the hand lever can be formed in plate construction.
  • the counter is, in particular at least one module the same, (at least partially) received between plates of the hand lever.
  • This solution idea combines the advantages of the design of the hand lever in plate construction (in particular a cost-effective production, a rigid, yet compact design and the possibility of training of bearing eyes in the plates with holes in the plates or bearing plates held in the plates) with the simple provision of a Recording room of the module of the counter between the plates while protecting the module through the plates.
  • a module of the counter is integrated in a casing of a hand lever made of plastic or at least partially covered by the sheath made of plastic.
  • This refinement can make use of the knowledge that a measuring principle of the sensor is not disturbed (essentially) by a casing made of plastic or partially covering, but the plastic casing or the at least partial cover can provide protection of the module of the counting device.
  • a kind of block of the module can be formed with which individual components of the module are fixed relative to one another.
  • the counter works independently. It is also possible that the counter cooperates via non-contact connections with external devices for power supply and / or data transmission.
  • the counter is equipped with a connection. This can serve the power supply during operation of the hand tool. Alternatively or cumulatively, it is possible that recharging of a rechargeable battery takes place via the connection. Furthermore, it is possible that a change in the operating conditions of the counter is possible via the connection.
  • connection is used as a data transmission device, by means of which operating data of the hand tool or the current count of the counter, if necessary with additional information such as frequencies of the passage of a working stroke on a working day, date and time of a working stroke or other measured values how actuating forces, pressing forces, pressing force-Pressweg-courses are transmitted.
  • the display of a count and information derived therefrom only via an external display device.
  • a display device available by means of which the number of working strokes or a dependent thereon information can be displayed.
  • the information dependent on the number of working strokes passed is the information as to whether a threshold for the number of working strokes has been reached.
  • the display device is formed with at least one LED, which can indicate, for example, depending on the operating condition (in particular by operation / non-operation of the LED or operation of the LED with different colors), whether a threshold for the number of working strokes has been reached or the Hand tool is ready for use or certification is required.
  • the counter has a control unit.
  • the control unit is equipped with a control logic, based on the counted strokes an evaluation of wear of the hand tool, in particular a die or the drive mechanism makes. Depending on the result of this evaluation, a maintenance, repair or just a certification or examination can then take place.
  • the control unit of the counter is equipped with control logic which compares the number of strokes detected by the counter with a first threshold. When the first threshold value is exceeded, the control unit activates the display device to generate a first display. In addition, the number of strokes detected by the counter is compared to a second threshold (which is different from the first threshold). When the second threshold value is exceeded, the control unit activates the display device to generate a second display. It is quite possible that in addition to the comparison with a third, fourth ... Threshold takes place with the generation of a third, fourth ... display.
  • the first threshold may correlate with the number of these strokes prior to startup.
  • the first threshold value is exceeded, it can be indicated by means of the first display that the hand tool is ready for operation. If an adjustment of the use of the pliers, certification or testing, maintenance or replacement of a die or other component after N strokes, a second threshold corresponding to the number N can be selected. When this second threshold value is exceeded, the second indication indicates to the user that the operation of the hand-held pliers must be stopped or certification is required.
  • a third threshold may be defined which is less than said second threshold, for example 5 or 10% less than this.
  • the user can then be indexed with a third indication that an early setting of the operation of the hand tool is required and only a limited number of work strokes should be performed with this.
  • the different displays can in different colors of an LED, driving different LEDs, the change from a continuous operation of an LED, for example as a third display to a flashing operation of the same LED as the second display u. ⁇ . exist.
  • the counter has a reset device. These can be used to reset the current count of the working strokes to zero or a specified value.
  • the counter can be used to ensure that the dies are used only with a defined number of strokes to avoid excessive wear of dies. If a premature replacement of the dies or the replacement of dies after passing the predetermined maximum number of strokes, the counter should also be used for a new pair of dies, which is made possible by resetting the count by means of the reset device.
  • the reset device can be actuated by a switch, knob or sensor, which is freely accessible on the hand tool, for example on an inner side of a hand lever.
  • the reset device is covered by a lid or a flap or difficult accessible behind a projection or in a Well is arranged. It is also possible that a reset device is used, which can only be actuated via a special tool or via an electrical reset signal.
  • the threshold values with which a comparison of the number of working strokes determined by the counter takes place are predetermined, whereby different threshold values are used, depending on the type of hand tool, the drive mechanism used and / or the workpiece processed with the hand tool can come.
  • the invention proposes that the control unit of the counter is equipped with control logic which determines the threshold value as a function of operating variables.
  • a smaller threshold value can be taken into account by means of the control logic if a relatively large actuating force or pressing force acts during the working strokes, whereas a larger threshold value is used as a basis when the working strokes are relatively small Actuating forces or pressing forces act.
  • Other possible operating variables taken into account are, for example (but not limited to) temperature conditions, operating frequencies, inserted dies and the like. ä.
  • the counter is formed with at least one, preferably two, module / modules.
  • modules can facilitate simplified assembly and disassembly.
  • a module may be formed with a transmitter of the sensor or a permanent magnet, while the other module has a receiver, a reed contact o. ⁇ .
  • the modules also make it possible to easily provide different equipment variants of the hand tool, namely those with counting device and without counting device. It is also possible that by the modular design of the counter easy retrofitting an existing hand tool with a counter is possible.
  • the hand tool has a working stroke, which requires several successive Operahübe.
  • a hand tool can be a cutting tool according to the patent DE 43 03 180 C2 or a hand tool for pressing frames, Pipes, cable lugs and similar tools according to patent DE 198 34 859 C2 or DE 199 63 097 C1 or a pressing tongs according to DE 10 2008 005 472 B3 act.
  • control unit of the counter can be equipped with control logic, which increases the count only when several or all partial strokes of the power stroke have passed. It is also possible that the increase in the count takes place only after reaching a defined end position of the machining process. Possibly, such a pair of pliers is also with a so-called Zwangsgesperre, cf.
  • a Zwangsgesperre use equipped which makes the passage of all Operahübe mandatory or opening the hand tool only when reaching the defined end position of the machining process allows and / or a temporary relief of the hand lever after a part of the working stroke.
  • a pawl for opening the hand lever is released only after passing through all successive partial strokes or when reaching the defined end position of the machining process.
  • the release of such a blocking element can be used in the detection of the same via a suitable sensor as a pulse for increasing the count.
  • Fig. 1 shows an example of a hand tool 1, here in training as pressing tongs for the compression of pipe joints, as this principle in the publications DE 199 63 097 C1 and DE 103 46 241 B3 is described, which are made the subject of the present application.
  • the hand lever 2, 3 are each formed in a plate construction with two plates 6, 7 and 8, 9, which in which in the FIGS. 2 and 3 area shown have a distance 10, 11.
  • a respective module 12, 13 is arranged in the area of the hand lever 2, 3, namely in a predetermined by the distance 10, 11 intermediate space 14, 15 are arranged.
  • the modules 12, 13 have an extension which corresponds to the assigned distance 10, 11 or is smaller than this.
  • Alternative integration options or holding the modules 12, 13 on basic bodies of the hand lever 2, 3 are also possible. For example, the integration of the modules 12, 13 in a recess of a base body of the hand lever 2, 3 take place.
  • a counter 16 is formed, which counts the number of traversed strokes 17 of the hand lever 2, 3 to each other for machining the workpiece.
  • the module 13 is formed with a transmitter 18, which may be, for example, a permanent magnet 19.
  • the module 12 is formed with a receiver 20. If the transmitter 18 is formed with a permanent magnet 19, the receiver 20 can detect the magnetic field and its change via the working stroke 17.
  • a sensor 21 is formed, which detects the distance of the hand lever 2, 3 or falls below a minimum distance, whereby a count pulse is triggered.
  • a display device 22, in particular an LED 23, is integrated into the module 12, which is visible on the inside of the hand lever 2 for the user, and this (different from the illustrated embodiment) also can be arranged in a side area or on the outside of the hand lever 2 and thus can be visible.
  • the modules 12, 13 at the end of the power stroke 17 a relatively large distance, so that a sensor 21 must be used, which can trigger the used for counting signal or a count pulse over this distance.
  • at least one of the hand levers 2, 3 in the area of the counter can have an extension 24, 25 in the direction of the other hand lever 3, 2, which then carries the module 12, 13 or in which Module 12, 13 is integrated (see. Fig. 4 ).
  • an extension 25 of a hand lever 3 extends into a recess 26 of an extension 24 of the other hand lever 2 or the base body of the hand lever 2 itself (and, u u., Also through this recess 26 therethrough).
  • the module 12 can be arranged in a lateral boundary region of the recess 26, so that the module 13 is moved past the module 12 during the working stroke 17, u. U. with a very small distance. It is possible that for this embodiment, the modules 12, 13 are additionally protected by entry of the extension 25 into the recess 26 of the extension 24.
  • a plurality of modules in particular a plurality of transmitters 18, in at least one of the extensions 24, 25 may be integrated, which are then successively passed, whereby a more accurate detection of the distance of the hand lever 2, 3 or the detection of the distance in several Steps is possible.
  • Fig. 6 schematically shows the counter 16, which is formed with the two modules 12, 13.
  • the hand lever 3 associated with the module 13 is formed with the permanent magnet 19 so that this requires neither a power supply nor a control device and does not receive or generate signals.
  • the hand lever 2 associated module 12 has the receiver 20, which is connected via line connections 27 to a battery or an accumulator 28 and a control unit 29, which is equipped with suitable control logic 30.
  • the control unit 29 is in turn connected to a display device 22 and / or a connection 31 for an external power supply and / or a data transmission and / or a reset device 32 for a reset of the count.
  • the electrical power supply of the control unit 29 can be made via the terminal 31 or via the accumulator or the battery 28.
  • a further connection 33 may be present for initial charging or recharging of the rechargeable battery.
  • the module 12 is surrounded by dashed lines. In this case, the module 12 may be cast into a block 34.
  • the senor 21 is an infrared distance sensor is used. It is also possible that a transfer between individual modules 12, 13 of the counter 16 and / or between the counter 16 and an external monitoring, display, documentation, storage and / or evaluation via an infrared transmission device takes place, which unidirectional can work or bidirectional work, for example. To change operating variables of the counter 16 to make an initialization or perform a reset.
  • the design according to the invention can also be used, for example, in connection with hand tools, such as those described by the applicant under the designations CS 10, CSV 10, CSV 10 FO MOST-POF, CSV 10 FO MOST, CSV 10 FAKRA, CS 11, AE, AE 24, CS 8, CK 90, CK 100, CS 30 STRATO, PHOTOVOLTAICS, CS 40, CS KTVR, CE. Cable cutter SH or SCORA 2 (see brochure WEZAG: Tools for professional use, Document No .: Cat. 10/11).
  • hand tools of the kind relevant here, for which the invention can be used are further in the applicant's documents DE 35 12 157 C2 . DE 37 08 727 C2 . DE 37 33 358 C1 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Automation & Control Theory (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Claims (15)

  1. Pince à main (1) avec un dispositif de comptage (16) destiné à compter les courses de travail effectuées (17), qui est formé d'un capteur (21) qui capte la distance ou le déplacement de deux éléments constitutifs déplacés l'un par rapport l'autre pendant la course de travail, caractérisée en ce que le dispositif de comptage (16) est constitué d'un module (12, 13) moulé dans lequel sont intégrés
    a) une unité de commande (29),
    b) au moins un raccordement de conduite (27),
    c) une platine,
    d) un émetteur (18),
    e) un récepteur (20),
    f) un dispositif d'affichage (22),
    g) une batterie ou un accumulateur (28), et/ou
    h) une connexion (31, 33) pour une alimentation de puissance et/ou une transmission de données.
  2. Pince manuelle (1) selon la revendication 1, caractérisée en ce que le dispositif de comptage (16) est intégré dans le levier manuel (2, 3) de la pince manuelle (1).
  3. Pince manuelle (1) selon la revendication 1 ou 2, caractérisée en ce qu'au moins un levier manuel (2 ; 3) est formé en plaques, et un module (12 ; 13) du dispositif de comptage (16) est reçu entre des plaques (6, 7 ; 8, 9) du levier manuel (2 ; 3).
  4. Pince manuelle (1) selon la revendication 2 ou 3, caractérisée en ce qu'un module (12, 13) du dispositif de comptage (16) est intégré dans une gaine d'un levier manuel (2, 3) en matière plastique ou est recouvert par celle-ci au moins partiellement.
  5. Pince manuelle (1) selon l'une des revendications précédentes, caractérisée en ce que le dispositif de comptage (16) est équipé d'une connexion (31, 33).
  6. Pince manuelle (1) selon l'une des revendications précédentes, caractérisée par la présence d'un dispositif d'affichage (22) du nombre de courses de travail (17) effectuées ou d'une information qui en dépend.
  7. Pince manuelle (1) selon la revendication 6, caractérisée en ce que le dispositif d'affichage (22) est formé avec une LED (23).
  8. Pince manuelle (1) selon l'une des revendications précédentes, caractérisée en ce qu'une ou l'unité de commande (29) du dispositif de comptage (16) est équipée d'une logique de commande (30) qui, sur la base des courses de travail (17) comptées, procède à une analyse concernant une usure de la pince manuelle (1), en particulier d'une matrice ou des parties d'entraînement.
  9. Pince manuelle (1) selon l'une des revendications 6 à 8, caractérisée en ce qu'une ou l'unité de commande (29) du dispositif de comptage (16) est équipée d'une logique de commande (30) qui compare le nombre de courses de travail (17) captées par le dispositif de comptage (16) avec une valeur de seuil et pilote le dispositif d'affichage (22) en cas de dépassement de la valeur de seuil.
  10. Pince manuelle (1) selon la revendication 9, caractérisée en ce que l'unité de commande (29) du dispositif de comptage (16) est équipée d'une logique de commande (30) qui
    a) compare le nombre de courses de travail (17) captées par le dispositif de comptage (16) avec une première valeur de seuil et, en cas de dépassement de la première valeur de seuil, pilote le dispositif d'affichage (22) pour la production d'un premier affichage et
    b) compare le nombre de courses de travail (17) captées par le dispositif de comptage (16) avec une deuxième valeur de seuil et, en cas de dépassement de la deuxième valeur de seuil, pilote le dispositif d'affichage (22) pour la production d'un deuxième affichage.
  11. Pince manuelle (1) selon la revendication 10, caractérisée en ce que l'unité de commande (29) du dispositif de comptage (16) est équipée d'une logique de commande (30) qui
    a) compare le nombre de courses de travail (17) captées par le dispositif de comptage (16) avec une valeur de seuil qui correspond à un nombre de courses d'étalonnage ou de courses de travail d'un contrôle qualité,
    b) compare le nombre de courses de travail (17) captées par le dispositif de comptage (16) avec une valeur de seuil qui correspond à un nombre de courses de travail admissibles au maximum et/ou
    c) compare le nombre de courses de travail (17) captées par le dispositif de comptage (16) avec une valeur de seuil qui établit une corrélation avec l'atteinte imminente du nombre de courses de travail admissibles au maximum.
  12. Pince manuelle (1) selon l'une des revendications précédentes, caractérisée en ce que le dispositif de comptage (16) dispose d'un dispositif de reset (32).
  13. Pince manuelle (1) selon l'une des revendications 9 à 11, caractérisée en ce que l'unité de commande (29) du dispositif de comptage (16) est équipée d'une logique de commande (30) qui détermine la valeur de seuil en fonction d'autres grandeurs de fonctionnement.
  14. Pince manuelle (1) selon l'une des revendications précédentes, caractérisée en ce que le dispositif de comptage (16) est formé avec au moins un module (12, 13) pouvant être monté, démonté et/ou installé a posteriori.
  15. Pince manuelle (1) selon l'une des revendications précédentes, caractérisée en ce que l'unité de commande (29) du dispositif de comptage (16) est équipée d'une logique de commande (30) qui augmente la valeur de comptage
    a) lors d'une course de travail qui exige plusieurs courses partielles successives, seulement après une réalisation de toutes les courses partielles successives, ou
    b) seulement après l'atteinte d'une position extrême définie du processus d'usinage.
EP14184375.5A 2014-09-11 2014-09-11 Pince Active EP2995424B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP14184375.5A EP2995424B1 (fr) 2014-09-11 2014-09-11 Pince
CN201510559338.5A CN105415221B (zh) 2014-09-11 2015-09-06 手钳
TW104129630A TWI649167B (zh) 2014-09-11 2015-09-08 手壓鉗
JP2015178203A JP2016055428A (ja) 2014-09-11 2015-09-10 ハンドプライヤ
US14/851,230 US9864948B2 (en) 2014-09-11 2015-09-11 Hand pliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14184375.5A EP2995424B1 (fr) 2014-09-11 2014-09-11 Pince

Publications (2)

Publication Number Publication Date
EP2995424A1 EP2995424A1 (fr) 2016-03-16
EP2995424B1 true EP2995424B1 (fr) 2018-12-12

Family

ID=51518664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14184375.5A Active EP2995424B1 (fr) 2014-09-11 2014-09-11 Pince

Country Status (5)

Country Link
US (1) US9864948B2 (fr)
EP (1) EP2995424B1 (fr)
JP (1) JP2016055428A (fr)
CN (1) CN105415221B (fr)
TW (1) TWI649167B (fr)

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US12015233B2 (en) 2019-12-11 2024-06-18 Wezag Gmbh & Co. Kg Hand pliers tool and method for assembling the same

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Also Published As

Publication number Publication date
CN105415221B (zh) 2018-11-23
JP2016055428A (ja) 2016-04-21
US20160078338A1 (en) 2016-03-17
US9864948B2 (en) 2018-01-09
CN105415221A (zh) 2016-03-23
TW201609326A (zh) 2016-03-16
TWI649167B (zh) 2019-02-01
EP2995424A1 (fr) 2016-03-16

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