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公开(公告)号：US10226315B2
公开(公告)日：2019-03-12
申请号：US14755238
申请日：2015-06-30
申请人： Braun GmbH
IPC分类号： A61C17/22 , A46B5/02 , B25G1/10 , B29C45/16 , A46B13/02 , B32B1/08 , B32B3/28 , B32B27/08 , B29L31/42
摘要： A multi-component housing having a length and comprising at least a first component comprising a first plastic material, a second component comprising a second plastic material, and a third component comprising a third plastic material. The housing includes at least one tolerance-elimination element made of the second plastic material and longitudinally attached to the first component along the housing's longitudinal axis. The tolerance-elimination element has an average length extending parallel to the housing's longitudinal axis, which average length is at least ten times less than the length of the housing. The third component at least partially forms an outer surface of the housing, so that the tolerance-elimination element is at least partially overmolded by the third plastic material.
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公开(公告)号：US11254084B2
公开(公告)日：2022-02-22
申请号：US16773228
申请日：2020-01-27
申请人： Braun GmbH
摘要： A plurality of mass-produced identical multi-component housings for toothbrush handles, each housing having a length of about 120-200 mm, which is at least three times greater than a maximal orthogonal dimension thereof. Each housings includes at least a first component made of a first hard-plastic material, a second component made of a second hard-plastic material, and a third component made of a soft-plastic material, which are integrally joined together to form a generally tubular structure. Each housing includes a tolerance-elimination element made of the second plastic material, attached to one of first component's ends, at least partially overmolded by the soft-plastic material, and having an average length of about 3-20 mm, which average length varies among at least some of the tolerance-elimination elements by a lengthwise dimension that is at least ten times greater than the lengthwise maximal dimension variations of the length among the individual multi-component housings.
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公开(公告)号：US10583625B2
公开(公告)日：2020-03-10
申请号：US14755277
申请日：2015-06-30
申请人： Braun GmbH
摘要： A plurality of mass-produced multi-component housings having a length and comprising at least a first component comprising a first plastic material, a second component comprising a second plastic material, and a third component comprising a third plastic material. Each of the housings includes at least one tolerance-elimination element made of the second plastic material and longitudinally attached to the first component along the housing's longitudinal axis. The tolerance-elimination element has an average length extending parallel to the housing's longitudinal axis, which average length is at least ten times less than the length of the housing. The third component at least partially forms an outer surface of the housing, so that the tolerance-elimination element is at least partially overmolded by the third plastic material. The tolerance-elimination elements of the plurality of multi-component housings are structured to cause lengthwise maximal dimension variations of the length L among the individual multi-component housings to be not greater than 0.1 mm.
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公开(公告)号：US11751678B2
公开(公告)日：2023-09-12
申请号：US17120622
申请日：2020-12-14
申请人： Braun GmbH
发明人： Norbert Schaefer , Thomas Fritsch , Andreas Kramp , Andreas Larscheid , Marc Kunz , Robert Schäfer
CPC分类号： A46B15/0012 , A61C17/16 , A61C17/221 , A61C17/34 , A46B2200/1066
摘要： A personal hygiene device has a handle and a treatment head pivotably connected with the handle. Applying a treatment force against the treatment head causes a pivoting of the treatment head relative to the handle. A sensor, such as, e.g., a Hall sensor, fixedly secured with respect to one of the handle and the treatment head, measures a measurement variable. A sensor cooperation unit defines or influences the measurement variable in dependence on the relative position of the sensor and the sensor cooperation unit, such e.g., as a sensor permanent magnet, fixedly secured relative to one of the handle and the treatment head. A spring unit defines a rest position of the treatment head when no treatment force is applied. The spring unit has a first spring constant in the treatment direction and a second spring constant in a lateral direction, the second spring constant being at least about two times higher than the first spring constant.
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公开(公告)号：US10893746B2
公开(公告)日：2021-01-19
申请号：US16159394
申请日：2018-10-12
申请人： Braun GmbH
发明人： Norbert Schaefer , Thomas Fritsch , Andreas Kramp , Andreas Larscheid , Marc Kunz , Robert Schäfer
摘要： A personal hygiene device has a handle and a treatment head pivotably connected with the handle. Applying a treatment force against the treatment head causes a pivoting of the treatment head relative to the handle. A sensor, such as, e.g., a Hall sensor, fixedly secured with respect to one of the handle and the treatment head, measures a measurement variable. A sensor cooperation unit defines or influences the measurement variable in dependence on the relative position of the sensor and the sensor cooperation unit, such e.g., as a sensor permanent magnet, fixedly secured relative to one of the handle and the treatment head. A spring unit defines a rest position of the treatment head when no treatment force is applied. The spring unit has a first spring constant in the treatment direction and a second spring constant in a lateral direction, the second spring constant being at least about two times higher than the first spring constant.
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公开(公告)号：US10543633B2
公开(公告)日：2020-01-28
申请号：US15197246
申请日：2016-06-29
申请人： Braun GmbH
发明人： Marc Kunz
摘要： A molding device for manufacturing a plastic hollow part by injection molding includes an injection nozzle and first and second molding stations. Each molding station has a first mold including two mold halves forming, respectively, first and second mold cavities, and a core having a first end, which can be at least partially located inside the first and second mold cavities. A first stripper can be arranged on the core in a passive position, spaced from the first end of the core at a first distance; in a molding position, spaced from the first end of the core at a second distance; and in a demolding position, spaced from the first end of the core at a third distance; wherein the first distance is greater than the second distance, and the second distance is greater than the third distance.
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公开(公告)号：US11534282B2
公开(公告)日：2022-12-27
申请号：US16273815
申请日：2019-02-12
申请人： Braun GmbH
IPC分类号： A46B13/02 , A61C17/22 , B25G1/10 , B29C45/16 , B32B1/08 , B32B27/08 , B32B3/28 , A46B5/02 , B29L31/42
摘要： A multi-component housing having a length and comprising at least a first component comprising a first plastic material, a second component comprising a second plastic material, and a third component comprising a third plastic material. The housing includes at least one tolerance-elimination element made of the second plastic material and longitudinally attached to the first component along the housing's longitudinal axis. The tolerance-elimination element has an average length extending parallel to the housing's longitudinal axis, which average length is at least ten times less than the length of the housing. The third component at least partially forms an outer surface of the housing, so that the tolerance-elimination element is at least partially overmolded by the third plastic material.
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公开(公告)号：US10059046B2
公开(公告)日：2018-08-28
申请号：US14755128
申请日：2015-06-30
申请人： Braun GmbH
IPC分类号： B29C45/16 , B29C45/00 , B29D22/00 , B29K23/00 , B29L31/42 , B29C33/44 , B29K21/00 , B29C45/40
CPC分类号： B29C45/0003 , B29C33/444 , B29C45/162 , B29C45/1635 , B29C45/1676 , B29C2045/1629 , B29C2045/1682 , B29C2045/4078 , B29D22/003 , B29K2021/003 , B29K2023/10 , B29L2031/425
摘要： A process for making a multi-component hollow housing comprises injecting a first plastic material into a first mold cavity and causing it to solidify to form a first component, whereby the first plastic material shrinks lengthwise; injecting a second plastic material into a second mold cavity having the first component transferred thereto and causing the second plastic component to solidify to form a second component, the second component comprising a tolerance-elimination element that is longitudinally attached to the first component at one of the ends thereof, wherein a length of the shrunk first component is at least ten times greater than a length of the tolerance-elimination element, and wherein an absolute lengthwise shrinkage of the second plastic material forming the tolerance-elimination element is at least ten times smaller than the lengthwise shrinkage of the first plastic material; at least partially overmolding an intermediate part comprising the first and second component with a third plastic material in a third mold cavity, thereby forming the multi-component housing in which the tolerance-elimination element is at least partially overmolded by the third plastic material, and wherein the third plastic material forms at least a portion of an outer surface of the multi-component housing; and removing the multi-component housing from the core.
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