US3195203A - Means for connecting the parts of a multi-part housing - Google Patents

Means for connecting the parts of a multi-part housing Download PDF

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Publication number
US3195203A
US3195203A US279908A US27990863A US3195203A US 3195203 A US3195203 A US 3195203A US 279908 A US279908 A US 279908A US 27990863 A US27990863 A US 27990863A US 3195203 A US3195203 A US 3195203A
Authority
US
United States
Prior art keywords
housing
clasp
parts
lug
halves
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US279908A
Other languages
English (en)
Inventor
Hoffmann Bruno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NORTH AMERICAN PHILLIPS COMPAN
NORTH AMERICAN PHILLIPS COMPANY Inc
Original Assignee
NORTH AMERICAN PHILLIPS COMPAN
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 NORTH AMERICAN PHILLIPS COMPAN filed Critical NORTH AMERICAN PHILLIPS COMPAN
Application granted granted Critical
Publication of US3195203A publication Critical patent/US3195203A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S24/00—Buckles, buttons, clasps
    • Y10S24/30—Separable-fastener or required component thereof
    • Y10S24/31—Separable-fastener or required component thereof with third, detached member completing interlock
    • Y10S24/37—Third member consists of unitary elongated element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45005—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] with third detached member completing interlock [e.g., hook type]
    • Y10T24/45099—Resilient element [e.g., snap type]

Definitions

  • This invention relates to a connecting means for connecting the parts of a multipart housing, more particularly for the two cup-shaped halves of a housing of synthetic material intended to receive an electrical device, for example of the housing of a dry-shaver.
  • an electrical device for example of the housing of a dry-shaver.
  • Such electrical devices which are operated on the power current mains, must first of all be reliably insulated so that accidents due to electrical current are, humanly speaking, impossible. Consequently, in such devices the live parts are usually arranged in a housing made of high-quality insulating material, more particularly of a modern synthetic material, so the involuntary contact with live parts is impossible even in the case of injudicious operation.
  • the housing is usually formed so as to enclose the driving motor or the other live parts on all sides and comprises substantially two cup-shaped halves which, after mounting of the electrical parts, are reliably joined together.
  • the present invention overcomes the above-mentioned disadvantages of known screwed connections and is characterized in that the housing has at least two projecting parts each of which is arranged on a part of the housing so that the one is a mirror image of the other a clasp engaging over the said projecting parts and pushing them against each other.
  • each half of the housing has only one such projecting part of a comparatively large surface area and the prescribed mutual position of the halves of the housing can be exactly determined by dowel pins or similar means provided additionally.
  • a clasp of resilient wire bent approximately into the shape of a rectangle with a ratio of the sides of about 1:2 or more is preferably made of.
  • Such a clasp can be made in simple and cheap manner, the cost being especially low in comparison with the screws used hitherto, and such a clasp permits of obtaining an equally secure connection, which can, however, be established or be opened much more rapidly. In fact, for this purpose it is only necessary for the clasp to be slipped on or off the projecting parts.
  • two relatively spaced projecting parts are arranged on or in each half of the housing, the distance between which from outer edge to outer edge corresponds to the long side of the rectangular clasp.
  • the short side of the rectangle corresponds to the thickness of two closely justaposed projecting parts each of which is associated with one half of the housing.
  • the long limbs of the clasp come to lie approximately at their center under lugs bevelled upwardly which are provided on the walls of the housing and if the clasp is bent in the rectangular plane so that the limbs engage one or each lug with initial stress.
  • the lugs serve to lock the clasp in the mounted position and their upward bevelling permits simple mounting of the clasp since the long sides of the rectangle on being depressed are automatically bent inwards by the lugs until they snap under the lower edges of the lugs.
  • the clasp may have one long side of the rectangle provided with an interruption located laterally at the center, which permits a very simple manufacture since the steel wire or the like which is used as the raw material need be bent only into the desired rectangular shape.
  • the initial stress of the clasp in the mounted position may advantageously be obtained by an upwardly-directed bend of the longer portion of the side of the rectangle provided with an interruption.
  • the long limb of this end of the clasp is bent from the imaginary horizontal plane of the rectangle in a slanting upward direction to obtain the shape desired.
  • the lugs provided on the wall of the housing project inwardly far enough to ensure that, where the limbs of the clasp engage the outer edges of the projecting parts, the clasp is also securely held in position and can be disengaged from the lug and removed only by bending inwards the long limb of the clasp.
  • Connecting means are thus obtained which after mounting, securely holds together the halves of the housing and which, on the other hand, can readily be loosened by bending inwards the limb of the clasp provided with an interruption until it is released by the associated lug, while in the loosened condition of the connection the clasp still remains fixedly secured to one half of the housing in that its other long limb is still held under the lug of this part of the housing.
  • FIG. 1 is an elevation view of the upper part of the housing provided with the connecting means
  • FIG. 2 is a View of this part from the bottom and FIG. 3 is a side view thereof; one half of the housing only being shown in FIG. 1 and the upper portion being shown in section in FIG. 3 for the sake of clarity.
  • the embodiment shown relates to the housing made of synthetic material of a dry-shaver comprising two cupshaped halves 1 and 2, the electrical as well as mechanical parts of the shaver being omitted for the sake of clarity.
  • the halves of the housing are substantially of the same configuration and each have in the upper part a recess 3 to receive the shaving head, which upper part only is shown.
  • the shaving head engages over the recess 3 in the form of a cap, thus covering both the recess and the parts contained in it.
  • a clasp 8 of resilient steel wire which is bent into a rectangular shape and which is so proportioned as to tightly embrace the lugs 4 and 7 in the mounted position (FIGS. 2 and 3).
  • the long limbs of the clasp 8 are situated, as can be seen from FIGS. 2 and 3, under'lugs 9, bevelled upwardly which are provided on the side walls of the recess 3.
  • These lugs hold the clasp 8 'in the mounted position, thus providing for an invariably rigid junction of the halves of the housing.
  • the limb of the clasp located under the lug It is bent inwardly until it disengages from the lug, whereafter the clasp can be brought into the position shown in FIG. 1.
  • the connection between the two halves of the housing is thus loosened and the apparatus can be opened and inspected. Nevertheless in this position, the clasp 8 remains fixedly con nected to the half 1 of the housing, since its long limb situated below is still held under the lug 9 which prevents it from sliding out. If it is desired to remove the clasp completely, it is necessary for the long limb under the lug 9 to be bent inwards until it disengages from the lug 9, whereupon the clasp can be pulled off upwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Dry Shavers And Clippers (AREA)
US279908A 1962-06-23 1963-05-13 Means for connecting the parts of a multi-part housing Expired - Lifetime US3195203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP20102U DE1870228U (de) 1962-06-23 1962-06-23 Vorrichtung zur verbindung der teile eines mehrteiligen gehaeuses.

Publications (1)

Publication Number Publication Date
US3195203A true US3195203A (en) 1965-07-20

Family

ID=7367707

Family Applications (1)

Application Number Title Priority Date Filing Date
US279908A Expired - Lifetime US3195203A (en) 1962-06-23 1963-05-13 Means for connecting the parts of a multi-part housing

Country Status (4)

Country Link
US (1) US3195203A (US07122603-20061017-C00249.png)
BE (1) BE633972A (US07122603-20061017-C00249.png)
DE (1) DE1870228U (US07122603-20061017-C00249.png)
GB (1) GB1048644A (US07122603-20061017-C00249.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825181A (zh) * 2012-08-27 2012-12-19 宝鸡烽火工模具技术有限公司 一种矩形钢丝环成形模具
CN115008506A (zh) * 2022-04-18 2022-09-06 浙江盛发电器有限公司 剃须刀刀头
US11785161B1 (en) 2016-06-20 2023-10-10 Pipbin, Inc. System for user accessibility of tagged curated augmented reality content

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3546770B1 (en) * 2018-03-26 2021-01-20 Braun GmbH Electric skin treatment device and coupling unit for a skin treatment device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US278593A (en) * 1883-05-29 Method of and mold for casting steel ingots having iron centers
US1892464A (en) * 1931-01-21 1932-12-27 William W Hoffman Hot top for ingot molds
US1939298A (en) * 1930-11-06 1933-12-12 Arrow Hart & Hegeman Electric Securing means for electrical connecting devices
US1954252A (en) * 1933-03-15 1934-04-10 John N Maus Plug
US2582059A (en) * 1952-01-08 Tubular rail member
US3039188A (en) * 1959-01-05 1962-06-19 Sperry Rand Corp Electric dry shaver

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US278593A (en) * 1883-05-29 Method of and mold for casting steel ingots having iron centers
US2582059A (en) * 1952-01-08 Tubular rail member
US1939298A (en) * 1930-11-06 1933-12-12 Arrow Hart & Hegeman Electric Securing means for electrical connecting devices
US1892464A (en) * 1931-01-21 1932-12-27 William W Hoffman Hot top for ingot molds
US1954252A (en) * 1933-03-15 1934-04-10 John N Maus Plug
US3039188A (en) * 1959-01-05 1962-06-19 Sperry Rand Corp Electric dry shaver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825181A (zh) * 2012-08-27 2012-12-19 宝鸡烽火工模具技术有限公司 一种矩形钢丝环成形模具
CN102825181B (zh) * 2012-08-27 2014-09-10 宝鸡烽火工模具技术有限公司 一种矩形钢丝环成形模具
US11785161B1 (en) 2016-06-20 2023-10-10 Pipbin, Inc. System for user accessibility of tagged curated augmented reality content
CN115008506A (zh) * 2022-04-18 2022-09-06 浙江盛发电器有限公司 剃须刀刀头

Also Published As

Publication number Publication date
DE1870228U (de) 1963-04-11
BE633972A (US07122603-20061017-C00249.png)
GB1048644A (en) 1966-11-16

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