Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
  • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
  • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
  • B05C17/0116—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like characterised by the piston driving means
  • B05C17/012—Stepwise advancing mechanism, e.g. pawl and ratchets
  • B05C17/0123—Lever actuated
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H31/00—Other gearings with freewheeling members or other intermittently driving members
  • F16H31/003—Step-by-step mechanisms for rotary motion
  • F16H31/006—Step-by-step mechanisms for rotary motion with friction means
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
  • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
  • G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
  • G01F11/025—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons
  • G01F11/026—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons of the gun type
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/15—Intermittent grip type mechanical movement
  • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/15—Intermittent grip type mechanical movement
  • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
  • Y10T74/1532—Rack actuator

Definitions

• TITLE Transmission device and application to a metering device.
• the present invention relates to a device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, as well as its application to a device for dispensing controlled doses of a finishing product in particular.
• the prior art is known as snap-fastening systems in which a pawl, for example secured to a swinging arm, meshes on a pinion when the arm is moved in one direction and drives the pinion when the arm is moved in the other direction.
• the transmission of the movement is therefore carried out mainly thanks to the cooperation between the pawl and the teeth of the pinion.
• a pinion has a finite number of teeth, each of which corresponds to a potential drive point. Therefore, as long as the pawl has not passed from one tooth to the next, the device has a certain play and it does not operate with maximum efficiency from the first motor movement of the swing arm.
• devices for distributing finishing products such as putty guns are known, in particular for applying a finishing product to a determined area.
• a reservoir provided with a piston which generally is set in motion in the reservoir by means of a spring system connected to a trigger.
• spring system connected to a trigger.
• such systems have a certain inertia, in particular due to the use of springs to set said piston in motion.
• such systems do not allow precise control of the dose of product applied or its speed of exit from said reservoir.
• the object of the present invention is to provide a transmission device as well as a device for dispensing controlled doses, implementing such a transmission device, which overcomes the aforementioned drawbacks.
• an object of the present invention is to provide a transmission device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, which does not present any play.
• a transmission device for transforming an oscillating movement into a unidirectional, rotary and / or linear movement, which does not present any play.
• such a device will have an increased transmission efficiency with respect to transmission devices known elsewhere.
• Another object of the present invention is to provide a device for dispensing doses of a liquid, viscous or pasty material, such as a finishing product using such a transmission device, making it possible to precisely control the quantity of material applied.
• Another object of the present invention is to provide a device for dispensing an optimal dose of material to be applied, this dose being sufficient to ensure that the desired effect is obtained without it being necessary subsequently to clean up any burrs .
• the present invention relates first of all to a transmission device for transforming at least one oscillating movement into a unidirectional rotary movement comprising: - an actuator oscillating around an axis of oscillation, between two positions, in a first direction, called d drive, and in a second direction, called back, opposite to said drive direction,
• the present invention also relates to a transmission device for transforming an oscillating movement into a unidirectional linear movement using a transmission device to transform an oscillating movement into a unidirectional rotary movement, in which a pinion cooperates with the axis of rotation of said axis. wheel on the one hand, and on the other hand meshes with a rack.
• the present invention also relates to a device for distributing controlled doses of a liquid, pasty or viscous material, in particular a sealant, using a transmission device capable of transforming an oscillating movement into a unidirectional linear movement.
• FIG. 1 is an exploded perspective view of a transmission device according to the invention
• FIG. 2 is a perspective view of the device of FIG. 1, the parts being assembled
• FIGS. 3 to 6 respectively are front, right, rear and left projections of the device illustrated in FIG. 2,
• FIG. 7 is an enlarged view of the transmission device illustrated in FIG. 6, the cover of the housing being removed,
• FIGS. 8, 9 and 10 are projections respectively from below, along the edge, and from above, illustrating the drive and blocking means of the invention
• FIG. 11 is a view of disengageable means used in a device for transforming a unidirectional rotary movement into a unidirectional linear movement
• FIG. 12 illustrates a device for distributing controlled doses of a liquid, pasty or viscous material, in accordance with the invention
• FIG. 13 shows schematically a device for fixing fastening elements provided with a distribution device according to the invention.
• the present invention relates to a transmission device for transforming at least one oscillating movement into a unidirectional rotary movement.
• such a transmission device comprises an actuator 1 oscillating around an oscillation axis 2.
• This device can oscillate between two positions, in particular extreme high and low positions. For example, it can oscillate in a first direction illustrated by arrow 3, from top to bottom, and in a second opposite direction.
• the device also includes a wheel 4 provided with a rotation axis 5.
• the transmission device further comprises:
• Said drive means 6 are subject to said actuator 1 and are capable of driving said wheel 4 in a first direction known as before, illustrated by the arrow 7.
• Said locking means 8 are capable of preventing said wheel 4 from entering into rotation in a second direction, called rear, opposite to said front direction 7.
• said wheel 4, said drive means 6 and said blocking means 8 are assembled inside a housing 9 which protects and maintains them in their respective positions, as illustrated in FIGS. 2 to 6.
• Said housing 9 is provided with a cover 10 which, once removed, as shown in FIG. 7, allows access to the mechanism of the transmission device.
• said housing 9 can serve as a support for the axis of rotation 2 of said wheel. It is also provided at the rear with an opening 11 to allow the oscillating movements of the actuator 1.
• the locking means 8 of said wheel 4 keeps a fixed position relative to said housing 9.
• Said actuator 1 can be in the form of a lever 1, one end 12 of which is articulated to the axis of rotation 5 of said wheel 4.
• said wheel 4 has a smooth edge 13.
• the drive means 6 and the locking means 8 cooperate with said edge 13 of the wheel 4.
• the drive means are in the form of an eccentric 14 secured to said lever 1 at its axis of rotation by a axis 15.
• the distance between the axis of rotation of the drive eccentric 14 and the axis of rotation 5 of said wheel remains constant.
• said locking means 8 are in the form of a locking eccentric 16 whose axis of rotation, materialized by an axis 17, remains at constant distance from the axis of rotation 5 of said wheel 4 .
• the operating principle of the locking eccentric 16 is similar to that of the eccentric of the drive 14. As we have seen that the locking means 8 remain fixed relative to the housing 9, when said locking eccentric 16 is braced against the wheel 4, it prevents the latter from rotating. This is the case that occurs when the lever 1 moves in the return direction.
• the operating cycle of the transmission device is therefore as follows: when the lever 1 moves in the drive direction 3, the drive eccentric 14 is braced against said wheel 4 while the locking eccentric 16 undergoes a slight rotation which places it in a “free wheel” relative to said wheel 4.
• the drive eccentric 14 can drive the wheel 4 in rotation, in the forward direction 7.
• the lever 1 will therefore be able to return freely to its initial position while the locking means 8 prevent the wheel 4 from rotating in the rear direction.
• said drive eccentrics
• said lever 1 is provided with a lug 20 in which is provided a notch 21 where said spring 18 is housed.
• Said notch 21 makes it possible to hold and guide said spring 18.
• Said spring 18 acts on said flat of said drive eccentric 14 and thus ensures constant contact between said drive eccentric 14 and said wheel 4.
• the locking means 8 it is advantageous to provide a bent arm 22, one end 23 of which cooperates with the axis of rotation 5 of said wheel 4, and the other end 24 is integral with said housing 9.
• a notch 25 is provided in which said spring 19 is housed, capable of cooperating with the flat part of the locking eccentric 16.
• said notch 25 makes it possible to hold and guide said spring 19.
• said drive eccentrics 14 and blocking 16 have an eccentricity of a few tenths of a millimeter, in particular 3/10 of a millimeter for a diameter of 6 mm.
• FIG. 7 shows, in an exaggerated manner, on the one hand the axis of rotation of said eccentrics 14, 16, materialized by axes 15, 17 respectively, and on the other hand the center 50, 51 of the circle in which said eccentric 14, 16 is written.
• Eccentricity is defined as the distance between the axis of rotation of the eccentric and the center of said circle.
• the position of said center 50, 51 relative to said contact generator 52, 53 changes.
• the amplitude of the contact angle 54, 55 can therefore vary when said eccentric 14, 16 is braced against said wheel 4, the contact angle 54, 55 has a minimum value, called the pressure angle.
• said lever 1 can be subjected to control means, by means of a cleat 26.
• the control means advantageously describe a reciprocating movement, in the sense that the path followed by said means of control, in space, remains the same from one operating cycle to the next.
• said cleat 26 can be positioned along said lever 1, at a variable distance from the axis of oscillation 2 of said lever 1 or from rotation 5 of said wheel 4. This arrangement allows a variable transmission coefficient of the reciprocating movement of the means of control to the transmission device according to the invention.
• the present application also relates to a transmission device for transforming an oscillating movement into a unidirectional linear movement, implementing a transmission device, as mentioned above to transform an oscillating movement into a unidirectional rotary movement and further comprising a pinion 27 cooperating with the axis of rotation 5 of said wheel 4 on the one hand and on the other hand, meshing with a rack 28.
• a transmission device for transforming an oscillating movement into a unidirectional linear movement
• a transmission device as mentioned above to transform an oscillating movement into a unidirectional rotary movement and further comprising a pinion 27 cooperating with the axis of rotation 5 of said wheel 4 on the one hand and on the other hand, meshing with a rack 28.
• disengagement means are provided to make said pinion 27 free relative to the axis of rotation 5 of said wheel 4 and to be able to return said rack 28 to its initial position by driving it in the opposite direction to its direction. normal displacement.
• Said pinion 27 is mounted on a shaft 31, the end of which is provided with a through hole in which a pin 32 is housed. Said pin 32 cooperates with a diametrical groove 30 at the end of the pinion 27. Thus, when said pin 32 is engaged in said groove 30, the rotation of the shaft 31 causes the pinion 27 to rotate.
• a tube 34 integral with the wheel 4 at its axis of rotation 5.
• the length of the tube 34 is at least equal to one and a half times the diameter of the pin 32 placed at the end of the shaft 31 of the pinion 27.
• the inside diameter of said tube 34 is equal to that of the shaft
• the wall of said tube 34 is provided with two longitudinal notches 35, diametrically opposite, capable of cooperating with said pin.
• a disengaging spring 33 is placed at the bottom of said tube 34, so that in the engaged position, said disengaging spring presses on said pin 32 so that it cooperates with said groove 30 of the pinion 27.
• the length of the shaft 31 is provided sufficient for said shaft 31 to protrude from said housing 9, at a disengagement button 36.
• a transmission device for transforming an oscillating movement into a linear or rotary unidirectional movement is irreversible. Indeed, due to the presence of the locking means 8, and since the lever 1 can oscillate independently of the rotation of the wheel 4, it is not possible to transform a unidirectional rotary movement printed on said wheel 4 into an oscillating movement of the lever 1.
• the present invention also relates to a device for distributing controlled doses of a liquid, pasty or viscous material such as a finishing product, in particular a sealing product, using a transmission device to transform an oscillating movement into a unidirectional linear movement, said dispensing device further comprising a reservoir 37 capable of containing said material, said rack 28 cooperating with means 39 for emptying said reservoir 37 dose by dose.
• said reservoir 37 is in the form of a cartridge or a syringe provided with a dispensing nozzle 40 and a piston which constitute said means 39 for empty said tank 37.
• a predetermined dose of the finishing product can be dispensed.
• the box 9 is provided with a front cover 41, the lower part of which, the rack 28 opens, has a substantially circular notch 42.
• said reservoir 37 is provided at its end opposite to the dispensing nozzle 40, with fins 43.
• Said circular notch 42 is provided capable of receiving said fins 43 of the reservoir 37. It therefore serves as means for holding said reservoir. In addition, this allows the cartridge 37 used to be changed very easily. Once a cartridge 37 has been emptied, it suffices to disengage the pinion 27 of the wheel 4 by pressing the disengaging button 36, to return the rack 28 to its initial position, then to remove the emptied cartridge 37 by sliding it out of the retaining notch 42 before installing a new cartridge 37.
• a device for metering a finishing material in a device 44 for fitting fastening elements, for example riveting.
• a device for fitting fastening elements is described in patent documents FR-01/07822 and FR-02/07322. These mechanisms have in particular a loading device 45 which brings the ends of a means 46 for supplying the fixing element from a fixing element to a means 47 for fitting the fixing element.
• the loading means 45 tilt with a constant amplitude around its tilting axis 48.
• a metering device according to the invention at a fixed point relative to the loading means 45 briefly described.
• said lever 1 can be secured to said loading device 45, by means of a cleat 26.
• the tilting movement of the loading device can be transmitted said lever 1, thus ensuring the operation of the metering device.
• the aim being to bring a controlled dose of a finishing material to the level of the fixing means, there is provided between the nozzle 40 of the cartridge 37 and the means for holding the loading means a flexible pipe in which can circulating said liquid, pasty or viscous, finishing material.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• General Physics & Mathematics (AREA)
• Transmission Devices (AREA)
• Coating Apparatus (AREA)

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• 2002
  • 2002-10-15 FR FR0212816A patent/FR2845747B1/fr not_active Expired - Fee Related
• 2003
  • 2003-10-08 AU AU2003286221A patent/AU2003286221A1/en not_active Abandoned
  • 2003-10-08 WO PCT/FR2003/002969 patent/WO2004035229A1/fr not_active Application Discontinuation
  • 2003-10-08 US US10/525,355 patent/US20050241421A1/en not_active Abandoned
  • 2003-10-08 CN CNA2003801013028A patent/CN1703285A/zh active Pending
  • 2003-10-08 CA CA002500324A patent/CA2500324C/fr not_active Expired - Fee Related
  • 2003-10-08 EP EP03776963A patent/EP1551563A1/de not_active Withdrawn

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