WO2019245731A1 - Lamelle pour un évent d'air d'un véhicule et procédé de fabrication de la lamelle - Google Patents

Lamelle pour un évent d'air d'un véhicule et procédé de fabrication de la lamelle Download PDF

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Publication number
WO2019245731A1
WO2019245731A1 PCT/US2019/035317 US2019035317W WO2019245731A1 WO 2019245731 A1 WO2019245731 A1 WO 2019245731A1 US 2019035317 W US2019035317 W US 2019035317W WO 2019245731 A1 WO2019245731 A1 WO 2019245731A1
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WO
WIPO (PCT)
Prior art keywords
slat
extruded profile
bearing
profile
air vent
Prior art date
Application number
PCT/US2019/035317
Other languages
English (en)
Inventor
Matthias Frisch
Günther Krämer
Original Assignee
Illinois Tool Works Inc.
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 Illinois Tool Works Inc. filed Critical Illinois Tool Works Inc.
Priority to DE112019002317.9T priority Critical patent/DE112019002317T5/de
Publication of WO2019245731A1 publication Critical patent/WO2019245731A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B29C48/155—Partial coating thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2883—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of preformed parts, e.g. inserts fed and transported generally uninfluenced through the extruder or inserts fed directly to the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/34—Nozzles; Air-diffusers
    • B60H1/3414—Nozzles; Air-diffusers with means for adjusting the air stream direction
    • B60H1/3421—Nozzles; Air-diffusers with means for adjusting the air stream direction using only pivoting shutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/34—Nozzles; Air-diffusers
    • B60H2001/3464—Details of hinges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/34—Nozzles; Air-diffusers
    • B60H2001/3471—Details of actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/34—Nozzles; Air-diffusers
    • B60H2001/3492—Manufacturing; Assembling

Definitions

  • the invention relates to a slat for an air vent of a vehicle. Moreover, the invention relates to a method for producing a slat of this kind.
  • Slats for air vents are used to guide an air flow flowing through an air duct of the air vent.
  • slats made of plastic are generally produced in a plastics injection molding process. Above a certain length - with the thickness remaining the same - slats of this kind become unstable and, in particular, this may result in sagging of the slat, in particular when acted upon by external forces. A warm air flow flowing through the air duct can also contribute to this.
  • Long slats of this kind with a length of 100 mm to 250 mm for example, are also subject to high requirements in respect of stiffness, i.e. resistance to sagging under load.
  • fillers such as glass balls or glass or carbon fibers are mixed in with the plastic, for example.
  • these cannot ensure a sufficient elasticity modulus in the case of long slats.
  • an elasticity modulus of about 200 GPa is required.
  • plastics rein forced with fillers reach only about 45 GPa.
  • these additives have a negative effect on the surface of the slat, and this generally necessitates further processing.
  • the slat comprises an extruded profile, produced in an extrusion process, that extends along a longitudinal axis and is made of plastic, and at least one bearing element, arranged on an end side of the extruded profile, for mounting the slat in the air vent, wherein at least one reinforcing element introduced into the extruded profile or applied to the extruded profile, and/or at least one decorative element applied to the extruded profile are/is provided.
  • the method according to the invention for producing a slat of this kind comprises the following steps: extruding an extruded profile extending along a longitudinal axis, introducing a reinforcing element into or applying a reinforcing element to the extruded profile and/or applying a decorative element to the extruded profile.
  • the reinforcing element is introduced into the extrud- ed profile or applied to the extruded profile, wherein "introduced” means insertion into the extruded profile while displacing material or removing material. This can take place, in particular, during the extrusion process.
  • the reinforcing element introduced can be completely surrounded by the extruded profile made of plastic but can also pass through the surface of the extruded profile, at least in some section or sections.
  • “applied” means connected to the extruded profile without displacement of materi al, e.g. placed on, clipped on, bonded on or connected to the surface of the extruded profile during the extrusion of the latter.
  • the concept of extrusion or the concept of the extrusion method includes both an extrusion method and a pultrusion method.
  • a slat to be produced not in a plastics injection molding process but in an extrusion process and to be provided, on the one hand, with at least one reinforcing element. It has been recognized here that a slat of this kind is particularly stable and, at the same time, is less expensive. As compared with a slat produced by the plastics injection molding, simpler and lower cost production is achieved, in particular through dispensing with expensive injection molding tools. In creased stiffness can be achieved by the introduction of the reinforcing element, e.g. of a metal strip.
  • the reinforcing element ensures adequate stiffness, in particular a sufficiently high elasticity modulus.
  • Manufacture is simplified, in particular, if the reinforcing element is processed in a common extrusion process with the extruded profile, as will be explained below. Moreo ver, it is also possible to dispense with the fillers mentioned at the outset for increasing stiffness, and this likewise simplifies production and furthermore results in a better surface finish of the slat.
  • the slat produced by the extrusion process can have a decorative element instead of the reinforcing element or, in particular, in addition to the reinforcing element.
  • the decorative element is not introduced into the slat but is ar ranged on, i.e. applied to, the surface without removal or displacement of material.
  • This method of production is simpler and less expensive than introducing a decorative element into the slat, especially in the case of joint extrusion of the extruded profile and the decora- tive element.
  • a slat having a reinforcing element and a decorative element is advantageous, in particular.
  • the reinforcing element makes it possible to dispense with fillers and hence to improve the surface finish of the slat.
  • the reinforcing element extends substantially along the entire length of the extruded profile, preferably in the form of a strip, along the longitudinal axis. It is also possible, in particular, to provide a plurality of reinforcing elements, e.g. two reinforc- ing elements in the form of strips extending along the longitudinal axis, which are intro- pokerd into the surface of the extruded profile on opposite longitudinal sides.
  • the reinforc- ing element can comprise, for example, a metal strip, one or more wires or a strap, made from carbon fibers, aramid fibers or glass fibers, for example.
  • Metal reinforcing elements can also have shapes that deviate from the longitudinal extent in some section or sections, e.g. rolled-up end edges, to further increase the stiffness of the slat.
  • the deco- rative element can be a film wrapping, for example, as explained below.
  • the decorative element can extend along the entire surface of the extruded profile, including the end sides, or, alternatively, only along the longitudinal sides. It is also possible for the decorative element to extend along the longitudinal sides only in some section or sections.
  • the at least one bearing element can comprise a pin or a plurality of pins, for example, wherein the pin or pins is/are accommodated in respective bearing orifices of a housing of the air vent.
  • the slat can have a plurality of bearing elements arranged on opposite end sides of the extruded profile. At least one of the bearing elements can also be used to control the slat.
  • the end sides refer to the profile ends of the extruded profile, which are, in particular, perpendicular to the longitudinal axis.
  • the bearing element it is also possible for the bearing element to be part of a bearing section which extends along the end side of the extruded profile, in particular a bearing section produced by (plastics) injection molding.
  • the bearing section can be attached to the end side of the extruded profile by means of (plastics) injection molding, for example.
  • the extruded profile is placed in an injection mold in a downstream process, and the bearing section, preferably consisting of the same material as the extruded profile, is molded onto one end side or both end sides of the extruded profile, in order to achieve a material bond.
  • the bearing section can also have a first connecting element, which interacts with a corresponding second connecting element of the extruded profile.
  • the first or second connecting elements can be an undercut, in particular a bore, an omega-shaped orifice, recess or barb, for example, in which case the corresponding first or second connecting element can then have a projec- tion, in particular a pin.
  • the connecting elements can be latching elements, thus enabling the bearing section to be held on the extruded profile by latching.
  • the joining direction can also be perpendicular to the longitudinal axis of the extruded profile.
  • the connecting elements can also form a dovetail joint, in particular with an additional latching feature, e.g. a latching knob. This gives rise to a mechanical joint which also allows combinations of materials which do not usually enter into material joints.
  • the extruded profile can also contain fiber material extending unidirectionally along the longitudinal axis of the extruded profile, e.g. carbon fibers, aramid fibers and/or glass fibers.
  • the reinforcing element and/or the decora- tive element is coextruded with the extruded profile. Consequently, the method can provide for the coextrusion of the extruded profile with the reinforcing element and/or the decora- tive element.
  • the reinforcing element can be introduced into the extruded profile or applied to the extruded profile during the extrusion process, or the decorative element can be applied to the extruded profile during the extrusion process.
  • the slats which are usually produced by injection molding, with reinforcing elements and/or decorative ele- ments.
  • connection of the reinforcing element or decorative element to the extruded profile of the slat takes place in a common work step, and therefore production is significantly simplified and costs are reduced. It is possible, in particular, to dispense with expensive injection molding tools for molding on the reinforc- ing and/or decorative element. By joint manufacture by extrusion, it is possible, in parti cu- lar, to combine the reinforcing element and the decorative element in a simple and inex- pensive way.
  • the at least one bearing element is coextruded with the extruded profile. It is also possible for several, in particular all, of the bearing elements provided on opposite end sides of the extruded profile to be coextruded with the extruded profile. In this way, at least one of the bearing elements can be produced jointly with the extruded profile, wherein, after the extrusion process, the bearing element is exposed on at least one of two opposite end sides of the extruded profile. In particular, it is of course possible in this way for the bearing elements on both end sides of the extruded profile to be coextruded jointly with the extruded profile. This further simplifies the production process.
  • the bearing element or bearing elements can consist of plastic or metal, for example, in particular of metal wires or polysulfones, and can extend over the entire length of the extruded profile. After coextrusion, the bearing element or bearing elements is/are exposed by removing material at the end or ends of the extruded profile, e.g. by stamping, sawing, milling or laser cutting or by means of a high-pressure water jet. Provision can furthermore be made to shape the bearing elements by means of a subsequent shaping step.
  • At least one of the bearing elements can also be molded onto the extruded profile in an injection molding process or welded or adhesively bonded to the extruded profile.
  • these alternatives take place in a process downstream of the extrusion process.
  • the bearing elements it is possible, in particular, for the bearing elements to be formed by an injection molded part formed from the same plastic as the extruded profile.
  • the bearing elements can be welded to the end sides of the extruded profile in a welding process, e.g. by means of mirror, ultrasonic or friction welding. If an abovementioned bearing section is provided, this can be welded or adhesively bonded to the extruded profile, for example.
  • the bearing section can have a cavity surrounding a projection provided on the end of the extruded profile in order to maximize the adhesive bonding surface.
  • the bearing section it is equally possible for the bearing section to have a projection which projects into a corresponding cavity in the slat.
  • the reinforcing element forms the at least one bearing element. As explained above, it is possible here, after coextrusion with the extrud- ed profile, for the reinforcing element to be exposed by removing material from the extrud- ed profile. Thus, the reinforcing element can pass through at least one of the end sides of the extruded profile.
  • the reinforcing element can pass through both of the opposite end sides of the extruded profile and can thus form bearing elements on both sides of the extruded profile.
  • This embodiment further simplifies manufacture since the reinforc- ing element can now also perform the function of the bearing elements.
  • the at least one bearing element is held in a blind bore formed in the end side of the extruded profile. Consequently, the method can com prise the following step: introducing at least one blind bore into at least one of two opposite end sides of the extruded profile and fastening at least one bearing element in the blind bore in order to mount the slat in the air vent.
  • the blind bore is introduced into the end side of the extruded profile after the extrusion process.
  • the bearing elements can be held in a blind bore formed in at least one of the end sides of the extruded profile.
  • the blind bores are used to accommodate the bearing element or bearing elements of the slat.
  • the bearing element or bearing elements can, for example, comprise a pin which is inserted into the blind bore and, in particular, is held nonpositively therein.
  • the pin can be held in the blind bore by friction, i.e. by pressure, by ultrasonic excitation or by an adhesive.
  • the blind bore can have an internal thread, which interacts with an external thread on the pin. This enables the pin to be screwed into the blind bore.
  • the bearing element can comprise a sleeve which is connected by the pin to the extruded profile and by means of which the slat can be supported on a housing of the air vent.
  • the sleeve can furthermore reduce the surface pressure upon contact with the housing to an acceptable level.
  • the screwing of the pin into the end side can simultaneously be used to establish the connection to a housing of the air vent and thus ensure the mounting of the slat in the air vent.
  • Corresponding collars on the pin can produce the freedom of movement with respect to the housing and also support the slat in the axial direction.
  • the pin can consist of plastic or metal. It is also possible for the bearing element to be part of a bearing section which extends along the end side, as mentioned above. As connecting elements connecting the bearing section to the extruded profile, it is possible, in particular, to pro- vide pins which are held in the blind bore, wherein the pins are arranged on a first side of the bearing section facing the extruded profile.
  • At least one bearing element, in particular a pin, for mounting on the air vent can extend on a second side of the bearing section, oppo- site the first side.
  • the bearing section can then be held on the extruded profile by means of welding, adhesive bonding or friction, for example, and thus the pin or pins can be held in the respective blind bore by welding, adhesive bonding or friction.
  • the bearing section can be attached to the end side of the extruded profile by means of (plas- tics) injection molding, as already mentioned above. In this case, no blind bore is required.
  • the at least one bearing element is held in a through-orifice extending in the longitudinal direction of the slat, said orifice being formed during the extrusion of the extruded profile.
  • the method can comprise the following step: forming at least one through-orifice, extending in the longitudinal direction of the slat and passing through two opposite end sides of the extruded profile, during the extrusion of the extruded profile and fastening at least one bearing element in the through-orifice in order to mount the slat in the air vent.
  • a plurality of bearing elements is to be provided on oppo site end sides of the extruded profile, at least one of the bearing elements can be held in a through-orifice of this kind.
  • the advantage over a blind bore is that the through-orifice can be formed in the extruded profile during the extrusion process, simplifying production. In other respects, attention is drawn to the statements relating to the embodiment with the blind bore.
  • the reinforcing element is formed from wires extending along the longitudinal axis of the extruded profile or from a metal strip extend ing along the longitudinal axis of the extruded profile, or comprises a strip comprising fiber and/or filament material extending unidirectionally along the longitudinal axis of the extruded profile.
  • the fiber and/or filament material can comprise carbon, aramid or glass fibers, as explained above, and, in particular, can have a plastic compound as a substrate. It is also possible to use polypropylene fibers, for example.
  • the decorative element comprises one or more from the following set: pigmented or printed films, metal applications, real wood decora- tions, textiles or lighting elements, in particular light guides or luminous foils, painting or lamination. (Highly polished) metal or ceramic profiles, electroluminescent films for lighting or even wood or stone can be used as decorative elements.
  • Other decorative elements are of course conceivable. In this case, the decorative elements can also have functions which go beyond that of pure decoration, functioning as sensing films, for exam ple.
  • a functional film applied to the slat in particular a touch-sensitive film
  • This can serve, in particular, as an operator- control element for controlling the air conditioning and/or ventilation.
  • This function can be performed by the decorative element, for example - that is to say the decorative element can be designed as a touch-sensitive film and act as an operator-control element, for exam ple.
  • a touch-sensitive film of this kind is preferably coextruded together with the extruded profile.
  • the slat comprises a sliding element, connected to the extruded profile so as to be movable along the longitudinal axis, for inclining the slat about its longitudinal axis and for inclining at least one further air-guiding element.
  • the further air-guiding element it is possible, in particular, for the further air-guiding element to be oriented perpen dicularly to the longitudinal axis and to be tiltable about a bearing axis extending perpen dicularly to the longitudinal axis. Consequently, the sliding element serves for the adjust ment of the slat and hence for changing the air flow direction, wherein adjustment of the slat is performed by tilting the sliding element and hence the slat about the longitudinal axis.
  • An air flow flowing through the air duct can thus be deflected upward or downward, for example, in the state in which the air vent is installed in the vehicle.
  • the sliding ele ment surrounds the extruded profile, in particular completely, and is pushed onto the extruded profile, for example.
  • the slat it is possible, in particular, for the slat to form a front air guiding element, i.e. an air guiding element arranged closer to an air outlet end of the air duct, while the further air guiding element forms a rear air guiding element, i.e. an air guiding element arranged further away from the air outlet end.
  • the sliding element can be connected to the rear air guiding element by a fork or a connecting rod, for example, wherein the fork or the connecting rod can be designed to limit the movement of the sliding element along the longitudinal axis.
  • the connecting rod can furthermore be designed to couple a movement of the rear air guiding element to further rear air guiding elements.
  • a sliding movement of the sliding element along the slat on the longitudinal axis brings about adjustment of the rear air guiding element or elements - e.g. via the fork or the connecting rod - and thus a deflection of the air flow.
  • An air flow flowing through the air duct is thus deflected - in particular sideways - in the state in which the air vent is installed in the vehicle.
  • the slat comprises limiting elements, formed on the extruded profile and/or on the sliding element, for limiting the movement of the sliding element along the longitudinal axis.
  • the limiting elements of the extruded profile can interact with limiting elements of the sliding element, or the limiting elements of the sliding element can interact with limiting elements of the extruded profile.
  • the limiting elements can form raised portions or recesses, for example.
  • end stops can be formed as limiting elements, in particular on the front edge or the rear edge of the extruded profile, by a recess extending along the longitudinal axis in the extruded profile, wherein a projection of the sliding element runs in the recesses.
  • the movement of the sliding element is then limited by stop contact of the projection against the end stops of said recess/notch.
  • Recesses/notches on the front side and the rear side of the extruded profile do not represent any weakening in the extruded profile since they do not affect the reinforcing element.
  • the limiting elements can extend perpendicularly to the longitudinal axis along a surface of the extruded profile, at least in some section or sections.
  • a pin, a screw or a bolt can be passed through the extruded profile from a rear edge to a front edge as a limiting element, in particular perpendicularly to the longitudinal axis, and serve as a stop for the sliding element.
  • Limitation of the movement of the sliding element can thus also be accomplished by means of such limiting elements, instead of by means of the connecting rod mentioned.
  • a limiting element arranged on a housing of the air vent e.g. a rib extending into the air flow from the inside of the housing.
  • This limiting element can be connected integrally to the housing or mount ed as a separate component.
  • the limiting elements are designed as ribs extend- ing perpendicularly to the longitudinal axis on a surface of the extruded profile.
  • the ribs are raised portions which extend from a rear edge of the extruded profile to a front edge, at least in some section or sections.
  • such ribs can be provided on both mutually opposite longitudinal sides of the extruded profile.
  • the ribs form stops for the sliding element, e.g. for mutually opposite side walls of the sliding element, which delimit the sliding element laterally.
  • the ribs can, in particular, be adhesively bonded to the extruded profile.
  • the extruded profile can have a length of more than 100 mm, in particular more than 200 mm.
  • the extruded profile can have a length of greater than or equal to 250 mm.
  • the increase in stiffness in accordance with the invention due to an extruded profile, in particu- lar a coextruded profile, and a reinforcing element is advantageous. Consequently, it is possible, in particular, for this embodiment to be provided only for the variant comprising the reinforcing element introduced into the extruded profile or applied to the extruded profile. In the case of the variant comprising the decorative element, shorter slats are also conceivable.
  • the method according to the invention is suitable for producing the slat according to the invention.
  • Figure 1 shows an air vent with a slat mounted therein, in accordance with a first embodiment
  • Figure 2 shows the slat from figure 1
  • Figure 3 shows one end of the slat from figure 2
  • Figure 4 shows one end of a slat according to another embodiment
  • Figures 5 and 6 show the other end of the slat from figure 2,
  • Figure 7 shows an exploded illustration of a partially illustrated slat in another embodiment, together with a sliding element
  • Figure 8 shows the slat from figure 7, together with the sliding element arranged on the slat.
  • Figures 1 to 3 and 5 and 6 show a slat 20 in a first embodiment.
  • the slat 20 is mounted in a housing 12 of an air vent 10 in such a way as to be pivotable about a longitudinal axis L.
  • the housing 12 delimits an air duct 14, through which an air flow flows from an air inlet end to an opposite air outlet end 16 in a main flow direction H.
  • the air flow can be deflected upward or downward from the main direction H by pivoting the slat 20.
  • the slat 20 has a front edge 22, a rear edge 24, an upper side 26 and a lower side 28, as can be seen from figure 2.
  • the slat 20 has bearing elements 30, 32 and 34 on its opposite end sides.
  • bearing element 30 is designed as a floating bearing and bearing element 32 is designed as a fixed bearing.
  • the bearing elements 30, 32 define the longitudinal axis L about which the slat 20 is pivoted in the housing 12.
  • bearing element 32 is accommodated in a bearing orifice 18 of the housing 12, as can be seen from figure 1.
  • Bearing element 30 is also accommodated in a housing orifice of the air vent (not illustrat- ed).
  • Bearing element 34 forms a means of attachment to an operator-control element (not illustrated) of the air vent and can be moved around the axis L along a partially circular path, with the result that the slat is pivoted about the longitudinal axis L.
  • the slat 20 is relatively long and can have an extent of over 100 mm in the longi tudinal direction, for example. Particularly in the case of a force acting from the outside on the slat, the slat may thus sag.
  • the slat 20 therefore has an extruded profile 21 made of plastic, which has been produced jointly with reinforcing elements 40, 42 in an extrusion process.
  • a decorative element 44 has moreover also been applied to the extruded profile 21 in the course of coextrusion.
  • the decorative element 44 extends over a section of the upper side 26 of the slat 20, across the front edge 22, and over a section of the lower side 28 of the slat 20.
  • the reinforcing elements 40, 42 are arranged between the decorative element 44 and the extruded profile 21, at least in some section or sections, as can be seen from figure 3.
  • Manufacture of the extruded profile 21 together with the reinforcing elements 40, 42 and the decorative element 44 in an extrusion step is particularly simple and inexpensive.
  • the reinforcing elements achieves sufficient stiffness, despite its long length and, in particular, the reinforcing element increases the elasticity modulus of the slat.
  • the decoration of the slat by means of the decorative element in the same method step the slat can assume any appearance in a simple and efficient way.
  • bearing element 32 has a sleeve 36 and a pin 35
  • bearing element 34 has a sleeve 38 and a pin 37
  • the sleeves 36, 38 are each held in orifices (not visible here) in the end side of the extruded profile 21 by the pins 35, 37 by means of a press fit.
  • the bearing elements 32 and 34 can thus be attached.
  • mounting on the housing 12 or on an adjusting element is accomplished by means of the sleeves 36, 38.
  • Slat 20' differs from slat 20 in its bearing elements.
  • a bearing section 50 extending over the entire end side of the slat 20' can be seen instead of the pins and sleeves explained.
  • This can have latching elements (not illustrated), in particular on a side facing the extruded profile, it being possible for said elements to interact with corresponding latching elements of the extruded profile and thus to hold the bearing section 50 on the slat 20'.
  • the bearing section 50 can also be molded onto the extruded profile in an injection molding process. It is also possible for the bearing section 50 to be held in orifices in the extruded profile by pins by means of press fitting.
  • a bearing element 32' extends as a fixed bearing along the longitudinal axis L on a second side facing away from the extruded profile.
  • a bearing element 34' used for attach ment to an operator-control element extends on a rear side of the bearing section 50.
  • the slat 20 illustrated in figures 5 and 6 shows the floating bearing side of the slat from figure 2.
  • the extruded profile 21 has two orifices 60, 62, which are either introduced into the extruded profile 21 as blind bores after the extrusion process or can be formed as through bores in the extruded profile 21 during the extrusion process.
  • the floating bearing 30 is formed by a pin 35' and a sleeve 36', wherein the pin 35' is passed through an orifice in the sleeve 36' and is held in orifice 60 by a press fit, as can be seen from figure 6.
  • Orifice 62 can be provided with a correspondingly designed bearing ele- ment.
  • the reinforcing elements 40, 42 have been introduced into the extruded profile 21.
  • the slat end shown in figure 3 can likewise have such blind bores or through-orifices, into which the pins 35, 37 are inserted.
  • Figure 7 shows a slat 20" in another embodiment, comprising two ribs 23, which extend perpendicularly to the longitudinal axis L on the upper side 26 and on the lower side 28 and which serve as limiting elements to limit the movement of a sliding element 70. It is possible, in particular, for the ribs 23 to be adhesively bonded to the extruded profile 21 of the slat 20".
  • the sliding element 70 has elongate receiving orifices 72 for receiving the slat 20", circular receiving orifices 73 for receiving a bearing rod 84 of a fork 80, and oblique surfaces 74 for bending open the sliding element 70 as it is pushed onto the slat 20" or onto the fork 80.
  • the sliding element 70 can thus be clipped onto the slat 20".
  • the sliding element 70 connected to the slat is arranged in such a way as to be movable along the longitudinal axis L on the slat 20", wherein the ribs 23 limit this longitudinal movement of the sliding element 70 as limiting elements in that they act as end stops when the inner surfaces 76 of the sliding element 70 strike against the ribs 23.
  • the fork 80 moves with the sliding element 70 by virtue of bearing heads 86. Via a coupling ele- ment 82 of the fork 80, this longitudinal movement can be coupled to one or more air guiding elements arranged upstream in the air duct - i.e. further away from the air outlet end.
  • Movement of the sliding element 70 on the slat 20" thus results in tilting of the other air guiding elements and thus to deflection of the air flow to the left or to the right, while tilting of the slat 20" about the longitudinal axis L is brought about by an upward or down ward movement of the sliding element, along the partially circular path K.
  • Figure 8 shows the sliding element 70 in the state in which it is connected to the slat 20". Moreover, it is also possible here to see bearing sections 50, 50' for mounting the slat in the housing of an air vent. List of reference signs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une lamelle pour un évent d'air d'un véhicule, comprenant un profilé extrudé, fabriqué dans un procédé d'extrusion, qui s'étend le long d'un axe longitudinal et est constitué de plastique, et au moins un élément d'appui, agencé sur un côté d'extrémité du profilé extrudé, pour le montage de la lamelle dans l'évent, caractérisé par au moins un élément de renfort introduit dans le profilé extrudé ou appliqué sur le profilé extrudé, et/ou au moins un élément décoratif appliqué sur le profilé extrudé.
PCT/US2019/035317 2018-06-21 2019-06-04 Lamelle pour un évent d'air d'un véhicule et procédé de fabrication de la lamelle WO2019245731A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112019002317.9T DE112019002317T5 (de) 2018-06-21 2019-06-04 Lamelle für einen luftausströmer eines fahrzeugs sowie verfahren zur herstellung der lamelle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018114939.5A DE102018114939A1 (de) 2018-06-21 2018-06-21 Lamelle für einen Luftausströmer eines Fahrzeugs sowie Verfahren zur Herstellung der Lamelle
DE102018114939.5 2018-06-21

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Publication Number Publication Date
WO2019245731A1 true WO2019245731A1 (fr) 2019-12-26

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PCT/US2019/035317 WO2019245731A1 (fr) 2018-06-21 2019-06-04 Lamelle pour un évent d'air d'un véhicule et procédé de fabrication de la lamelle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI725883B (zh) * 2020-06-29 2021-04-21 肯岳亞股份有限公司 具流體迴路換模設備及換模設備之穩溫及除塵方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436239A1 (fr) * 1989-12-01 1991-07-10 R.M.T.D. International B.V. Système de ventilation
DE202012102333U1 (de) 2012-06-25 2012-08-08 Dr. Schneider Kunststoffwerke Gmbh Lamelle für eine horizontale oder vertikale Lamellenanordnung in einem Gehäuse einer Luftdüse
FR3047198A1 (fr) * 2016-02-03 2017-08-04 Valeo Systemes Thermiques Procede de fabrication de volet de dispositif d'obturation de face avant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436239A1 (fr) * 1989-12-01 1991-07-10 R.M.T.D. International B.V. Système de ventilation
DE202012102333U1 (de) 2012-06-25 2012-08-08 Dr. Schneider Kunststoffwerke Gmbh Lamelle für eine horizontale oder vertikale Lamellenanordnung in einem Gehäuse einer Luftdüse
FR3047198A1 (fr) * 2016-02-03 2017-08-04 Valeo Systemes Thermiques Procede de fabrication de volet de dispositif d'obturation de face avant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI725883B (zh) * 2020-06-29 2021-04-21 肯岳亞股份有限公司 具流體迴路換模設備及換模設備之穩溫及除塵方法

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DE112019002317T5 (de) 2021-02-18

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