Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
  • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
  • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
  • H04R25/658—Manufacture of housing parts
• • 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
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/16—Making multilayered or multicoloured articles
  • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
  • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
  • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
• • 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
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/16—Making multilayered or multicoloured articles
  • B29C45/1671—Making multilayered or multicoloured articles with an insert
  • B29C2045/1673—Making multilayered or multicoloured articles with an insert injecting the first layer, then feeding the insert, then injecting the second layer
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
  • B29L2031/265—Packings, Gaskets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
  • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers

Definitions

• Injection molding process and categorized in overmolding processes are of interest, if not primarily so.
• One part is manufactured from a first material component and overmolded at least in sections with a second, different material component, which means that the second part is made of different material on the first part.
• All injectable thermoplastic materials can be used, in particular also for the overmoulding process, but also other materials that cannot be connected in a targeted manner.
• an acoustic conductor on the input side of the acoustic-electrical hearing aid transducer in the injection molding technology mentioned be it, for example, again together with a portion of the hearing aid housing or with a specifically designed for example sealing, elastic assembly part.
• receptacles for hearing aid components or parts are produced in the injection molding process mentioned, be it together with housing parts and / or together with other components directly adjacent to them.
• a hearing aid according to the invention is characterized according to the characterizing part of claim 9, preferred embodiments according to claims 10 to 16.
• Fig. 1 schematically shows a lot of a hearing aid housing in a perspective view with the seal attached according to the invention.
• FIG 3 shows a cross section through the housing wall of a hearing device constructed according to the conventional procedure with an assembled seal.
• FIG. 4 schematically shows a cross section through part of a hearing aid housing with an acoustic conductor and / or receptacle for a module, which is attached according to the invention.
• FIG. 5 schematically shows a cross section through a housing wall section with an operating unit and a bushing and unit holder constructed according to the invention.
• a hearing aid housing for example an outer ear hearing aid
• the shell 1 of a hearing aid housing is shown schematically and in perspective.
• positioning and mounting precautions as shown, for example, grooves are worked into the wall of the housing part 1 in the region of the end faces, into which a seal 7 is manually mounted again.
• a seal 7a is now sprayed directly onto the housing shell 1 or the end face 3 by two-component overmoulding injection molding.
• the material of the actual housing part wall meets the requirements to be placed on the housing with regard to stability, etc., while the material of the second component sprayed on in the overmoulding satisfies the requirements to be placed on the seal 7a.
• the sealing section 7a can be dimensioned exactly as it corresponds to the sealing requirements, and the wall of the housing section 1 can also be dimensioned and shaped exclusively according to criteria that are to be placed on the housing.
• An embodiment of the housing wall, which additionally satisfies the assembly of a separate seal 7, as shown in FIG. 3, is omitted.
• a material is selected as the material of the housing 10 or its wall in the usual way, which meets the requirements to be placed on the housing, for example a material for the acoustic conductor 13, which, for example, for the outer ear device , is biocompatible, and a material is selected as the material for the receiving block 15 which satisfies the requirements to be made in this regard with regard to shock and shock absorption and support for the transducer 12. It is also readily possible, for example, to select the material of the block 15 in an electrically conductive manner, for example if the converter 12 is to be electrically shielded.
• FIG. 5 again schematically shows a first part, for example again a wall of a housing section 10, with a lead-through opening 17 through which an operating element 19, such as a switch, projects through an operating element 25 of the hearing aid.
• an operating element 19 such as a switch
• FIG. 6 shows how a receptacle 32 for the corresponding positioning and holding of a device on the housing 30 of an assembly 34, for example an electronic module of the hearing device.
• Nes further unit 34 is grown with the two- or multi-component injection molding process mentioned, which in turn enables an optimally small-sized assembly with high packing density.

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Neurosurgery (AREA)
• Otolaryngology (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Signal Processing (AREA)
• Mechanical Engineering (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Sealing Material Composition (AREA)
• Moulds For Moulding Plastics Or The Like (AREA)
• Casings For Electric Apparatus (AREA)

Priority Applications (13)

Applications Claiming Priority (1)

Publications (2)

Family

ID=4358126

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (3)

Family Cites Families (17)

• 2000
  • 2000-09-07 DK DK09165610.8T patent/DK2106162T3/da active
  • 2000-09-07 JP JP2001501429A patent/JP2004523135A/ja active Pending
  • 2000-09-07 EP EP10177486A patent/EP2280561A1/de not_active Withdrawn
  • 2000-09-07 DK DK00956012T patent/DK1316239T3/da active
  • 2000-09-07 EP EP04020809A patent/EP1492383B1/de not_active Expired - Lifetime
  • 2000-09-07 DE DE50015724T patent/DE50015724D1/de not_active Expired - Lifetime
  • 2000-09-07 CA CA2422403A patent/CA2422403C/en not_active Expired - Fee Related
  • 2000-09-07 AU AU2000268147A patent/AU2000268147A1/en not_active Abandoned
  • 2000-09-07 DK DK04020809T patent/DK1492383T3/da active
  • 2000-09-07 WO PCT/CH2000/000480 patent/WO2000074915A2/de not_active Ceased
  • 2000-09-07 EP EP09165610A patent/EP2106162B1/de not_active Expired - Lifetime
  • 2000-09-07 EP EP00956012A patent/EP1316239B1/de not_active Revoked
  • 2000-09-07 DE DE50007714T patent/DE50007714D1/de not_active Revoked

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