WO2019231375A1 - Unité de haut-parleur, couvercle de haut-parleur et procédés - Google Patents

Unité de haut-parleur, couvercle de haut-parleur et procédés Download PDF

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Publication number
WO2019231375A1
WO2019231375A1 PCT/SE2019/050421 SE2019050421W WO2019231375A1 WO 2019231375 A1 WO2019231375 A1 WO 2019231375A1 SE 2019050421 W SE2019050421 W SE 2019050421W WO 2019231375 A1 WO2019231375 A1 WO 2019231375A1
Authority
WO
WIPO (PCT)
Prior art keywords
loudspeaker
housing
cover
axial end
loudspeaker cover
Prior art date
Application number
PCT/SE2019/050421
Other languages
English (en)
Inventor
Anna Granath
Original Assignee
Ikea Supply Ag
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 Ikea Supply Ag filed Critical Ikea Supply Ag
Publication of WO2019231375A1 publication Critical patent/WO2019231375A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
    • F21V33/0056—Audio equipment, e.g. music instruments, radios or speakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/10—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer reinforced with filaments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0207—Elastomeric fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups

Definitions

  • the present invention relates to a loudspeaker unit, a loudspeaker cover, and methods of assembling and renovating a loudspeaker unit.
  • a loudspeaker unit comprising a housing; a loudspeaker arranged inside the housing; and a loudspeaker cover supported by the housing, wherein the loudspeaker cover is configured as a textile sleeve extending along a sleeve axis and comprising a first axial end opening, the sleeve enclosing and covering at least a portion of the housing, wherein the loudspeaker cover is elastically held to the housing in a radial direction, with respect to said sleeve axis, by intrinsic elasticity of the textile, and configured to be slid off the housing for replacement or washing.
  • Such an arrangement facilitates replacing e.g. a broken loudspeaker cover, which extends product life and reduces environmental impact.
  • the arrangement may allow completely tool-less replacement.
  • it permits changing to a loudspeaker cover of a different colour and/or pattern, which allows following trends without replacing the entire product, which also extends product life and reduces environmental impact.
  • the arrangement may allow completely tool-less replacement.
  • it permits changing to a loudspeaker cover of a different colour and/or pattern, which allows following trends without replacing the entire product, which also extends product life and reduces environmental impact.
  • the loudspeaker cover becomes stained, e.g. by accidental contact with food or beverages, it can be taken off and washed, e.g. in a washing machine, and then put back again. Thanks to the loudspeaker cover squeezing the housing by means of its intrinsic elasticity, the need for any auxiliary bracing arrangements for stretching and bracing the textile to the housing is reduced. According to an embodiment, the loudspeaker cover is unbraced, i.e. , it is held to the housing only by squeezing the housing. The housing and the unbraced loudspeaker cover may be shaped to allow removal of the unbraced loudspeaker cover without first removing any other elements, such as housing parts.
  • the loudspeaker cover may be at least partly knitted, and optionally knitted to a tubular cross-section as seen along the sleeve axis; preferably, at least partly weft knitted, and even more preferably, at least partly Stockinette. It has unexpectedly been found that, while a knitted fabric may provide the desired elasticity to elastically engage with an object, it may also provide a good sound transparency within the audible frequency range for loudspeaker cover applications. Weft knitted fabrics, in which a single yarn forms multiple loops across the entire width of the fabric, may be particularly elastic. In such a knitting, each course of yarn may form such multiple loops along a tangential direction
  • the knit may, for example, be knitted in a flatbed knitting machine or a circular bed knitting machine.
  • the loudspeaker cover is flatbed knitted.
  • Flatbed knitting generally facilitates obtaining a coarser fabric, which may typically be particularly well suited for obtaining a high level of sound transparency.
  • At least a portion of the knitted loudspeaker cover has a right side and a wrong side, wherein the right side faces the housing.
  • the wrong, or reverse, side of e.g. a stockinette stitch generally has a flatter surface, whereas the right side has a relatively more structured surface.
  • the structure of the right side will hold the loudspeaker cover at a distance from the housing, which reduces the visibility of the housing through the loudspeaker cover.
  • said loudspeaker cover may further comprise a second axial end opening, said first and second axial end openings being positioned at opposite axial ends of said loudspeaker cover.
  • an axial end of the loudspeaker cover may have a loose edge permitting lifting off the housing.
  • a second axial end of the loudspeaker cover defining said second axial end opening, also has a loose edge.
  • an elastic portion of the loudspeaker cover is formed by ribbing or Garter stitch; preferably, the ribbing or Garter stitch is arranged adjacent to said first axial end opening.
  • a ribbing or Garter stitch may be arranged adjacent each of two opposing axial end openings.
  • ribbing is meant a knitted pattern in which stripes of Stockinette stitch alternate with stripes of reverse Stockinette stitch. The stripes may preferably extend in a direction along the sleeve axis, and may, for example, be parallel to the sleeve axis.
  • the loudspeaker cover may comprise an axial mid section and, at each axial opening, an axial end section, wherein stitches and/or yarn materials of the mid section are different from those of at least one of the axial end sections.
  • one of, or both, axial end sections may have a relatively higher elasticity, while the mid section may have a relatively lower elasticity.
  • the axial mid section may be configured as a double pique knit, and an axial end section may be configured as Stockinette ribbing.
  • the housing enclosing the loudspeaker may have a larger width at its central portion than adjacent at least one of its axial end portions, as seen along the sleeve axis; hence, it may be preferable that the sleeve has a larger radial width at its mid section than at said first axial end section.
  • the loudspeaker cover is knitted using an elastic yarn.
  • the elastic yarn may obtain its elasticity at least partly based on the structure of the yarn.
  • the yarn may comprise at least 20% by weight of an elastic type fibre, preferably comprising elastomer, such as elastane (spandex) fibre.
  • the yarn may comprise at least 40% by weight, at least 60% by weight, or at least 80% by weight of elastic type fibre, preferably elastomer.
  • the knit may comprise courses of high-elastic type fibre, preferably elastane, yarn (more than 40% by weight of elastic type fibre, preferably elastomer) alternating with courses of low-elastic type fibre, preferably elastomer, yarn (less than 20% by weight of elastic type fibre, preferably elastomer).
  • the loudspeaker cover is knitted using a yarn comprising at least 20% by weight polyester.
  • the yarn may comprise at least 40% by weight, at least 60% by weight, or at least 80% by weight polyester.
  • a yarn of the loudspeaker cover has a linear density of between 120 dtex and 220 dtex.
  • a typical linear density may, by way of example, be about 167 dtex.
  • a yarn of the loudspeaker cover may have between 24 and 48 filaments, such as 36.
  • the filaments may be of single-fibre type.
  • at least a portion of the loudspeaker cover may be knitted with a knitting gauge of between 5 and 18 stitches per inch, more preferably a gauge of 8 to 16. A typical gauge may be about 12 stitches per inch.
  • the outside of the housing may be free from any protruding corners or edges engaging with the inside of the loudspeaker cover.
  • a coarse fabric presenting a high level of sound transparency, may otherwise reveal or expose such sharp corners or edges.
  • a housing free from corners or edges may permit obtaining a better sound quality.
  • an outer face of the housing may have an oval or substantially circular cross-section.
  • An outer face of the housing may be rotationally symmetric about the sleeve axis.
  • a wall of the housing may be configured as a perforated plastic body, wherein perforations of the housing are in register with said loudspeaker.
  • the loudspeaker may be arranged inside the housing such that it faces, i.e. is configured to primarily direct the sound emitted therefrom, in a direction transversal to the sleeve axis. More specifically, the loudspeaker may face in a direction perpendicular to the sleeve axis.
  • the loudspeaker unit may further comprise an audio amplifier.
  • the audio amplifier may be arranged within the housing. It may e.g. be powered by a battery arranged within the housing, or by a mains cable.
  • the audio amplifier may also be provided with a wireless communications interface configured to receive streaming audio from a remote source, such as a smartphone.
  • a lamp comprising a light source holder, such as a stand, provided with a light source socket, wherein the light source holder may be configured as a loudspeaker unit in accordance with any of the embodiments disclosed hereinabove.
  • the lamp may be e.g. a table lamp, a ceiling lamp, or a floor lamp.
  • the socket may, by way of example, be a standard Edison socket such as an E14 or E27 socket.
  • the loudspeaker cover for a loudspeaker unit according to any of the embodiments disclosed hereinabove, wherein the loudspeaker cover is configured as a textile sleeve extending along a sleeve axis and comprising a first axial end opening, the sleeve being configured to enclose and cover at least a portion of a loudspeaker housing, wherein the loudspeaker cover is elastic in a radial direction, with respect to said sleeve axis, by intrinsic elasticity of the textile, such that it may be held to the housing by elastically squeezing the housing, and slid off the housing for replacement or washing.
  • the loudspeaker cover may be configured in accordance with any of the embodiments defined hereinabove with reference to the loudspeaker unit.
  • a method of assembling a loudspeaker unit comprising providing a housing comprising a
  • loudspeaker providing a loudspeaker cover configured as a textile sleeve extending along a sleeve axis and comprising an axial end opening; inserting the housing into the loudspeaker cover via said axial end opening; and allowing the loudspeaker cover to elastically engage with the housing.
  • a method may be performed without using any tools, i.e. tool-less.
  • the housing and loudspeaker cover may be configured in accordance with any of the embodiments defined hereinabove.
  • a method of renovating a loudspeaker unit comprising sliding off a first loudspeaker cover from a housing comprising a loudspeaker; providing a second loudspeaker cover, configured as a textile sleeve extending along a sleeve axis and comprising an axial end opening; inserting the housing into the second loudspeaker cover via said axial end opening; and allowing the sleeve to elastically engage with the housing.
  • Such a method may be performed without using any tools, i.e. tool-less.
  • the housing and first and second loudspeaker covers may be configured in accordance with any of the embodiments defined hereinabove.
  • Fig. 1 is a view in perspective of a table lamp comprising a loudspeaker unit according to a first embodiment
  • Fig. 2 is an exploded view in perspective of the table lamp of Fig. 1 ;
  • Fig. 3 is a view in perspective of a housing and a loudspeaker cover of the loudspeaker unit of the table lamp of Fig. 1 ;
  • Fig. 4 is a view in perspective of a loudspeaker unit according to a second embodiment.
  • Fig. 5 is a flow chart illustrating a method of renovating a loudspeaker unit.
  • Fig. 1 illustrates a table lamp 10 powered via a mains cable 12.
  • the table lamp 10 comprises a stand 14 supported on a foot 16, and a light source 18 carried by the stand 14.
  • the light source 18 may for example be configured as a LED (light emitting diode) lightbulb unit screwed into an Edison socket 20 at the top of the stand 14.
  • the light source 18 is enclosed by a translucent lamp-shade 22, which is releasably attached to the top of the stand 14 to facilitate replacement of the light source 18.
  • the stand 14 is configured as a loudspeaker unit, and will in the following be referred to as a loudspeaker unit.
  • the loudspeaker unit 14 comprises a plastic housing 24 provided with perforations 26, which are in register with the audio output of one or more loudspeaker elements arranged inside the housing 24.
  • the loudspeaker cover 28 is, for clarity of illustration, illustrated with parts broken away to expose the housing 24.
  • the loudspeaker cover 28, which completely encloses the mantle area of the housing 24, is elastically held to, and squeezes, the housing 24 by intrinsic elasticity of the textile, but is otherwise not attached to the housing. Thereby, the loudspeaker cover 28 is configured to be slid off the housing 24 for easy and tool-less replacement or washing in a manner which will be apparent in the following.
  • the lamp 10 comprises, starting from the top, the lamp-shade 22, the light source 18, and the loudspeaker unit 14 comprising the loudspeaker cover 28, the housing 24, a loudspeaker assembly 32 arranged inside the housing 24, the control knob 30, and the foot 16.
  • the loudspeaker assembly 32 comprises a woofer 34 and a tweeter 36, each facing a perforated portion 26 of the housing 24. .
  • the tweeter 36 and the woofer 34 are both oriented to emit sound primarily in a horizontal direction, i.e. in a direction
  • the loudspeaker assembly 32 further comprises a battery and an audio amplifier (not illustrated) operably connected to each other, and each operably connected to receive power from the mains cable 12.
  • the audio amplifier is also provided with a wireless communications interface (not illustrated) configured to receive streaming audio from a remote source, such as a smartphone, and a button 31 (Fig. 1 ) is provided on the foot for wireless pairing with another device (not illustrated).
  • the loudspeaker cover 28 has a tubular cross- section extending along a sleeve axis A which, in the illustrated embodiment, coincides with an axis of rotational symmetry of the housing 24.
  • the loudspeaker cover 28 exposes the foot 16 (Fig. 2) via a first, lower axial opening 38 of the loudspeaker cover 28, whereas the light source 18 (Fig. 2) protrudes out of the loudspeaker cover 28 via a second, upper axial opening 40 of the loudspeaker cover 28.
  • An axial mid section 42 of the loudspeaker cover 28 has a greater width W1 than a width W2 of a lower axial end section 44.
  • the width W1 of the axial mid section 42 is also greater than a width W3 of an upper axial end section 46.
  • the loudspeaker cover’s 28 varying width along the sleeve axis A aids in gripping the housing 24 in a formfitting manner.
  • the upper axial end section 46 of the loudspeaker cover 28 is weft knitted using a Stockinette knit.
  • Weft knit is a knit in which each course of wales intermeshes only with the
  • the wrong/reverse side of the Stockinette knit faces outwards, and the right side, which is opposite the wrong side, faces the housing 24. Alternatively, the wrong side may face the housing 24.
  • the knitted fabric gives an elastic character to the fabric of the upper axial end section of the loudspeaker cover 28.
  • the axial mid section 42 is weft knitted using a double pique knit. The second magnified portion illustrates the stitch as seen from the right/front side, which preferably faces the housing 24, whereas the
  • the fabric of the lower axial end section 44 is even more elastic than the fabric of the axial mid section 42 and the upper axial end section 46, which facilitates threading the loudspeaker cover 28 over the housing 24 from above.
  • elasticity may be added by using Garter stitch.
  • the entire loudspeaker cover may be made in the same stitch, e.g. ribbed or unribbed Stockinette.
  • a relatively higher elasticity of the axial end sections 44, 46 may be obtained by using a stitching yarn of the mid section 42 which is different from the stitching yarn of the axial end sections 44, 46.
  • an upper end of the loudspeaker housing 24 is provided with a radially extending flange 56; however, the flange 56 is not configured to attach to the upper edge 52 of the loudspeaker cover 28, but merely acts as a support.
  • the loudspeaker exemplary loudspeaker cover of Fig. 3 may be flatbed knitted with a knitting gauge of between 5 and 18 stitches per inch, more preferably a gauge of 8 to 16, and typically about 12 stitches per inch. Thereby, a lateral wale separation d approximately corresponding to between 5 and 18 wales per inch, more preferably 8 to 16 wales per inch, and typically about 12 wales per inch, may be obtained.
  • a typical knitting yarn 54 may have a linear density of between 120 dtex and 220 dtex, for example about 167 dtex.
  • the yarn 54 may have between 24 and 48 filaments, such as 36 filaments, which may be of multi- or single-fibre type.
  • the axial end sections 44, 46 of the loudspeaker cover 28 may be knitted with a yarn comprising a mix of polyester and elastomer fibres, and/or with alternating courses of strictly elastomer fibre based yarn and polyester yarn.
  • a typical elastomer fibre suitable for the purpose is elastane/spandex/Lycra.
  • a fraction of the courses 53b of polyester based yarns 54b overlaps with a respective course 53a of elastomer fibre yarn 54a.
  • one of four courses 53b of polyester based yarn 54b overlaps with a respective course 53a of elastomer fibre yarn 54a, such that the four-course pattern of the magnified portion repeats in the vertical direction.
  • the elastomer fibre yarn 54a may skip a fraction of the wales 55b of the polyester based yarn 54b; in the illustrated
  • the elastomer fibre yarn 54a forms a wale 55a at every two wales 55b of the polyester based yarn 54b.
  • Axial rim portions, at lower and/or upper edges 50, 52, may be knitted using elastomer fibre yarn 54a only, such that the axial edges 50, 52 will more firmly grip the housing 24.
  • the axial mid section 42 could be knitted with a yarn free from elastomer fibres, such as a 100% polyester yarn.
  • Fig. 4 illustrates a loudspeaker unit 114 according to a second embodiment.
  • the loudspeaker unit of Fig. 4 differs from the loudspeaker unit 14 disclosed with reference to Figs. 1 -3 in that the housing 124 does not have a light source socket at its top, and does not operate as a lamp stand. Instead, the loudspeaker unit 114 is free from auxiliary equipment at its top, and hence, the loudspeaker cover 128 is closed at its top axial end 140. Moreover, the loudspeaker unit 114 does not have any ribbing at its lower axial end.
  • Fig. 5 illustrates a method of renovating a loudspeaker unit, such as any of the loudspeaker units 14, 114 described in detail hereinabove.
  • the method comprises:
  • step 501 sliding off a first loudspeaker cover from a housing comprising a loudspeaker
  • step 502 providing a second loudspeaker cover, configured as a textile sleeve extending along a sleeve axis and comprising an axial end opening;
  • step 503 inserting the housing into the textile sleeve via said axial end opening;
  • step 504 allowing the textile sleeve to elastically engage with the housing.
  • the first and second loudspeaker covers may be of different character. For example, they may have different colours or ornamental patterns.
  • the above method may also be employed when taking off a loudspeaker cover from the housing for washing, for example for washing the loudspeaker cover in a machine or by hand.
  • the invention has mainly been described above with reference to a few embodiments. However, as is readily appreciated by a person skilled in the art, other embodiments than the ones disclosed above are equally possible within the scope of the invention, as defined by the appended patent claims.
  • knitted loudspeaker covers have been disclosed in detail.
  • the loudspeaker cover may comprise or be made of another type of textile, such as a woven fabric.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Telephone Set Structure (AREA)

Abstract

La présente invention concerne une unité de haut-parleur (14) comprenant un boîtier (24); un haut-parleur agencé à l'intérieur du boîtier (24); et un couvercle de haut-parleur (28) supporté par le boîtier (24), le couvercle de haut-parleur (28) étant conçu sous la forme d'un manchon textile s'étendant le long d'un axe de manchon (A) et comprenant une première ouverture d'extrémité axiale (38), le manchon entourant et recouvrant au moins une partie du boîtier (24), le couvercle de haut-parleur (28) étant maintenu élastiquement sur le boîtier (24) dans une direction radiale, par rapport audit axe de manchon (A), par élasticité intrinsèque du textile, et conçu pour être coulissé hors du boîtier (24) pour le remplacement.
PCT/SE2019/050421 2018-05-28 2019-05-13 Unité de haut-parleur, couvercle de haut-parleur et procédés WO2019231375A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1850633-7 2018-05-28
SE1850633A SE1850633A1 (en) 2018-05-28 2018-05-28 Loudspeaker unit, loudspeaker cover, and methods

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WO2019231375A1 true WO2019231375A1 (fr) 2019-12-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210212228A1 (en) * 2014-12-22 2021-07-08 Apple Inc. Structured Fabrics for Electronic Devices
WO2021211242A1 (fr) * 2020-04-17 2021-10-21 Google Llc Ensembles textiles pour haut-parleurs, comprenant des ensembles textiles avec des fils de tension incrustés, et appareils et procédés associés

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408269A1 (fr) * 1977-11-08 1979-06-01 Torchin Marcel Gaine amovible d'habillage pour enceinte acoustique
CA1121276A (fr) * 1978-08-30 1982-04-06 Klaus Reck Enceintes de hauts-parleurs
CA1203218A (fr) * 1985-03-18 1986-04-15 Joseph I. Sauve Lampe avec haut-parleur
EP3165648A1 (fr) * 2015-11-06 2017-05-10 Knitido Co., Ltd. Tissu tubulaire tricoté ayant une partie de serrage et son procédé de tricotage
US9848255B1 (en) * 2013-10-22 2017-12-19 Christopher Jack Brown Method for manufacturing a plastic speaker grill for wireless speaker assembly
WO2018175183A1 (fr) * 2017-03-21 2018-09-27 Apple Inc. Tissus d'espacement sans couture destiné à des dispositifs électroniques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408269A1 (fr) * 1977-11-08 1979-06-01 Torchin Marcel Gaine amovible d'habillage pour enceinte acoustique
CA1121276A (fr) * 1978-08-30 1982-04-06 Klaus Reck Enceintes de hauts-parleurs
CA1203218A (fr) * 1985-03-18 1986-04-15 Joseph I. Sauve Lampe avec haut-parleur
US9848255B1 (en) * 2013-10-22 2017-12-19 Christopher Jack Brown Method for manufacturing a plastic speaker grill for wireless speaker assembly
EP3165648A1 (fr) * 2015-11-06 2017-05-10 Knitido Co., Ltd. Tissu tubulaire tricoté ayant une partie de serrage et son procédé de tricotage
WO2018175183A1 (fr) * 2017-03-21 2018-09-27 Apple Inc. Tissus d'espacement sans couture destiné à des dispositifs électroniques

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210212228A1 (en) * 2014-12-22 2021-07-08 Apple Inc. Structured Fabrics for Electronic Devices
US11963324B2 (en) * 2014-12-22 2024-04-16 Apple Inc. Structured fabrics for electronic devices
WO2021211242A1 (fr) * 2020-04-17 2021-10-21 Google Llc Ensembles textiles pour haut-parleurs, comprenant des ensembles textiles avec des fils de tension incrustés, et appareils et procédés associés
US11606632B2 (en) 2020-04-17 2023-03-14 Google Llc Textile assemblies for speakers, including textile assemblies with inlaid tensioning yarns, and associated apparatuses and methods

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