US3791045A - Hair dryer with one finger head release - Google Patents

Hair dryer with one finger head release Download PDF

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Publication number
US3791045A
US3791045A US00334104A US3791045DA US3791045A US 3791045 A US3791045 A US 3791045A US 00334104 A US00334104 A US 00334104A US 3791045D A US3791045D A US 3791045DA US 3791045 A US3791045 A US 3791045A
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US
United States
Prior art keywords
head
bolts
arms
wall
head support
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
US00334104A
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English (en)
Inventor
E Landis
F Bostick
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.)
Conair LLC
Schick Inc
Original Assignee
Schick 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 Schick Inc filed Critical Schick Inc
Application granted granted Critical
Publication of US3791045A publication Critical patent/US3791045A/en
Assigned to CONAIR CORPORATION reassignment CONAIR CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SCHICK INCORPORATED, 33 RIVERSIDE AVE., WESTPORT, CT 06880, A CORP. OF DE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/44—Hair-drying helmets whereon the ventilating means and the heating means are apart from the helmet
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0801—Multiple
    • Y10T292/082—Spring arm
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0801—Multiple
    • Y10T292/0848—Swinging
    • Y10T292/0849—Operating means
    • Y10T292/0859—Push or pull rod

Definitions

  • This invention relates to hair dryers, and, in particular, to portable hair dryers of the so-called hard hat type.
  • Portable hair dryers of the hard hat type are in widespread use, and several types of hard hat dryers have been proposed in which the hard hat is adapted to be moved between an operating configuration and a storage configuration in which the dryer head assembly mates with and is secured to a base portion, with the head support assembly positioned therebetween in some manner.
  • Such dryers include some means for heating and moving air upwardly through the head support element and into a plenum in thehead assembly adapted for distributing, directing and discharging air toward the head of the user positioned at least partially within the head assembly.
  • One system for attaching the head-support element to the head has been to pivotally connect these members by means of a hinge, and provide some means for locking the head in a desired operating configuration.
  • the locking mechanism includes a pair of respective bolts mounted for movement back andforth along a line parallel to the axis of the hinge pivot line between the head and'head support assemblies, wherein the bolts are individually and separately operatedby buttons extending through respective walls of the head support element. It is apparant that when the dryer head assembly is in operating configuration, it will extend in a somewhat horizontal direction away from the head support element. This necessarily and inherently causes gravity-induced forces to be exerted onthe hinge and lock mechanism.
  • any release of-the'lock bolt mechanism of such a dryer at only one side of the headelement while such a dryer is in operating configuration will necessarily cause that side of the headassembly to shift downwardly to some degree, causing an uneven application of the gravity-induced forces along'the hinge, and with respect to the rivets or other means by which the hinge is attached to the respective head and head support element.
  • any additional forces applied such as, for example, by the hand of the user who is impatient to pivot the head into the nested position, are absorbed, to a great extent, by the hinge and the rivets by which the hinge is attached to the plastic material.
  • the hinge portion of the portable hair dryer is vulnerable to damage, and can be subjected to the type of flexing, jerking or wrenching which, in the long run, causes excessive wear and fatigue-induced failure.
  • some hard hat hair dryers have relatively wide head support elements for the purpose of providing a relatively large passageway through which air can 'be moved for distribution to the head member.
  • Some users having relatively small hands find this to berelatively awkward, and these users are particularly likely to depress one button at a time, thereby virtually assuring that the gravity-induced forces referred to above would be unevenly exerted upon the rivets and hinge mechanism, as described hereinbefore.
  • FIG. 1 is a perspective view of a hard hat dryer of the present invention shown in operating configuration.
  • FIG. 2 is a cross-sectional fragmentary view taken approximately along the line 2-2 of- FIG. 1.
  • FIG. 3 is a cross-sectional fragmentary view taken approximately along the line 33 of FIG. 2.
  • An improved hard hat dryer of the present invention is generally indicated by the numeral and includes a base 12, a vertically extending collar 14, a vertically extending retractable portion 16 of the head support element, generally 18, a pivotal portion 20 of head support 18.
  • Pivotal portion 20 is pivotally mounted to lower portion 16 by hinge 22 along the rear side thereof, and is maintained at the desired angular orientation with respect to the lower portion 16 by the abuttment of adjacent edges 24, 26 of head support element 18.
  • Dryer head assembly 28 is pivotally mounted on head support element 18 by hinge, generally indicated by the numeral 30 (see FIG. 3).
  • the head is secured in the desired operating configuration shown in FIG. 1 by means of latch mechanism generally indicated by the numeral 32 (see FIG. 2) and the latch mechanism 32 is releasable by movement of the control button 36 positioned in the middle of the rear wall 38 of the pivotal portion 20 of the head support element 18.
  • the head support element 18 has an upwardly curving end portion 40 having a relatively elongated front wall 42 and a curvilinear shallow outer wall 44.
  • Hinge 30 is secured to the end of inner wall 42 of the head support element 18 as well as to the perforated inner wall 46 of the head support element and the imperforate outer wall 48 of the head assembly 28 abutts against a mating portion of head support wall 44.
  • Extending through side walls 58, 60 of end 40 are respective locking bolts 62, 64, respectively.
  • the position of bolts 62, 64 is shown in solid lines in the locked" configuration, and the position of bolts 62, 64 in broken line shows the moved position in which the lock mechanism is in the release" configuration.
  • Bolts 62, 64 reside in respective recesses 66, 68, respectively, in the bottom wall 70 of head mounting assembly 28.
  • Respective bolts 62, 64 are secured at the inner ends thereof to respective bolt support arms 84, 86 which extend downwardly adjacent respective side walls 58, for a distance.
  • Bolt support arms 84, 86 are integral with central bridging portion 88.
  • the middle bridging portion has a generally upwardly curving configuration in the middle thereof, and forms acute angles at the respective juncure 92, 94 between bridging portion 88 and respective bolt support arms 84, 86.
  • Traveller 100 extends into pivotal portion 20 of head support element 18 adjacent upper rear wall 28, and near the lower end 102 thereof includes an integral connecting portion 104 for connecting controlbutton 36 to traveller 100.
  • Control button 36 is relatively large and resides against the outer face 108 of rear wall 38 completely covering pas sageway 110 in rear wall 38 through which connector 104 extends, regardless of the operating position of button 36. It is noted that end portion 98 and the rest of traveller 100 is dimensioned to pass through opening 110 during assembly, and is easily positioned in its operating position.
  • spring 90 With bolts 84, 86 secured thereto, is placed in the position shown in FIG. 2, and bridging portion 88 and slot 96 are aligned and bridging portion 88 is inserted in slot 96.
  • traveller 100 is necessarily moving forward at end 98, that is, in the direction towards the opening of slot 96, and that the path is somewhat arcuate, and that it is necessary to twist spring 90 slightly before traveller 100 could be inserted around or separated from spring 90. This helps to secure traveller 100 in position on spring 90.
  • the dimensioning of the elements, and the configuration of spring 90 is such that, immediately prior to the insertion of portion 88 of spring 90 into slot 96, middle portion 88 would be at a position just slightly higher than the position illustrated in FIG. 2.
  • middle portion 88 would be at a position just slightly higher than the position illustrated in FIG. 2.
  • openings 80, 82 in walls 58, 60 are aligned with recesses 66, 68, permitting bolts 62, 64 to pass into recesses 66, 68, thus immobilizing head 28.
  • operating button 36 is moved downwardly as shown in FIG. 3 by the arrow, moving the position of spring 90 from the position indicated by solid lines to that position indicated by broken lines. It is apparent that, in this configuration, end portion 98 of 5 traveller 100 is positioned adjacent wall 44 which thereby limits its downward motion, and spring 90, retained in slot 96 of end 98 of traveller 100 is also moved to the position adjacent wall 44.
  • bridging portion 88 and boltsupporting arms 88, 86 due to the stiffly resilient character of spring 90, retains substantially the same angle therebetween during the movement downwardly of middle bridging portion 88 of spring 90. It is further noted that junctions 92, 94 butt against wall 44 from the onset, preventing the movement of bolt-supporting arms 84, 86 in the direction of movement of traveller .100. It is further noted that traveller 100 moves in a direction which is along a line generally transverse of the stantially perpendicular to and intersecting the line passing through bolts 62, 64 when they are in the locked configuration.
  • the manual control button 36 provides a single finger control for simultaneously releasing the locking bolts on both sides of head support element 18. It is also apparent that the locking mechanism 62 consists,
  • respective bolt-support arms 84, 86, respective junctures 92, 94, and respective adjacent portions 112, 114 of bridging portion 88 of spring 90 constitute a pair of bell cranks 122, 124 which are pivotally retained within head support assembly 18.
  • Spring 90 although giving the impression of being a floating element not secured within head support assembly 18 by pivot pins at fulcrums 92, 94, is nonetheless movably retained in proper operating position as a result of the residence of mid-portion 88 in slot 96, the abuttment of juncture regions 92, 94 against outer wall 44, the proximity of arms 84, 86 to respective side walls 58, 60 and as a consequence of the positioning of bolts 62, 64 within openings 80, 82.
  • bolts 80, 82 are in the release position shown by the broken lines in FIG. 2, bolts 62, 64 still reside within walls 58, 60 and, thus, assist in maintaining spring 90 in operating position.
  • flexible mid-portion 88 serves many fucntions, for example, as a common bell crank position controller, as respective arms of the respective bolt-carrying bell crank, as a spacer for maintaining the respective bell cranks in proper spacedapart operating configuration and alignment, and as a part of the stop-means for restricting the movement of spring in a direction transverse of the elongated dimension of bolts 62, 64.
  • the mechanism provides an extremely simplified physical structure providing economy of parts, economy and simplicity of assembly, and reliability in operation. Moreover, even a user with relatively small hands will simultaneously retract both the locking bolts upon movement of the single operatorcontrolled actuator button 36. This provides instantaneous release of head assembly 28 at both sides of head support assembly 18, thereby maintaining uniform distribution of gravity-induced and other pivoting forces in the region of hinge 30 and eliminating the twisting or wrenching associated with heretofore available separately actuated multiple bolt dryer head locking mechanisms.
  • a portable hair dryer having a base; a head support assembly; and a head assembly pivotally mounted on said head support assembly; locking means for locking said head assembly against pivotal movement when said head assembly is in a desired operating configuration; said locking means including a pair of oppositely extending movably mounted bolts passing between aligned bolt-receivingorifices in said head assembly and said head support assembly; control means for simultaneously moving said bolts between a locked" and a release position, said control means being responsive to movement of a single operator controlled actuator.
  • each of the respective bolts is fixed to a respective first arm of a bell crank, and wherein a second arm of each respective bell crank is secured to a single operator controlled actuator.
  • bell crank means includes a pair of bell cranks pivotally supported in said head support assembly.
  • a hair dryer having a head assembly, and a head support assembly, said head assembly being pivotally mounted on said head support assembly and comprising a rigid hood shaped for. receiving a portion of the head of the user therein, said hood having an air distribution plenum, said head support being hollow and having a first wall thereof pivotally attached to an adjacent inner wall of said plenum, said head support member having a second wall opposite said first wall, said second wall being positioned closely adjacent the outer wall of said hood plenum, said head and said hood plenum having closely positioned adjacent surfaces defining an air conveying passage therebetween when said head assembly is in a desired operating position; pivot means for pivotally mounting said head on said head support element wherein said head is pivotal about a horizontal axis; said head support member having parallel oppositely facing surfaces at either side thereof, and said head member having a pair of oppositely facing parallel surfaces positioned closely adjacent to respective side surfaces of said head support element, wherein adjacent opposing surfaces have bolt receiving openings therein which are positioned in alignment with each other when said
  • the head support element extends in a horizontally biased direction when in operating configuration, and in which the end thereof adjacent said head element turns sharply upwardly for mating connection to said head element; wherein said arms and the bridging portion are positioned at an acute angle therebetween, wherein the point of the acute angle is positioned against an outer wall of the head support element which is closely adjacent to the outer wall of the head plenum; wherein the operator controlled means includes a finger tab, a traveller fixed to said finger tab, said traveller extending along the wall of the head support element element adjacent said finger tab, and having an end portion thereof which is directed transversely with respect to the traveller in the direction of said angled portion, and wherein the end portion of the traveller includes a slot therein for receiving a mid-portion ofsaid bridging portion therein, said upwardly extending portion extending a sufficient distance to engage said outer wall portion thereby limiting the movement of the traveller in the second direction.
  • a hair dryer having a head assembly, and a head support assembly, said head being pivotally mounted on said head support assembly and comprising means for receiving a portion of the head of the user therein, said head having an air distribution plenum, said head support being hollow and having a first wall thereof pivotally attached to an adjacent inner wall of said plenum, said head support member having a second wall opposite said first wall, said second wall being positioned closely adjacent the outer wall of said head plenum, said head and said plenum having closely positioned adjacent surfaces defining an air conveying passage therebetween when said head is in a desired operating position; pivot means for pivotally mounting said head on said head support element wherein said head is pivotal about a horizontal axis, said head assembly and said head support each having a respective pair of oppositely facing parallel surfaces wherein said surfaces of one of said members are closely adjacent oppositely corresponding respective surfaces of the other of said assemblies; said surfaces moving in arcuate parallel paths with respect to each other during said pivotal movement of said head, each of said surfaces having bolt receiving openings thereon positioned
  • An apparatus for latching a pivotal member in a desired position on a support member comprising: means for pivotally attaching said pivotal member to said support member, wherein said pivotal member is pivoted about an axis extending in a first direction, each of said members having a respective pair of oppositely facing parallel surfaces wherein said surfaces of one of said members is closely adjacent an opposite corresponding respective surface of the other member, said surfaces moving in an arcuate path with respect to each other during said pivotal movement of said pivotal element; each of said adjacent surfaces having respective bolt-receiving openings therein, said openings being positioned in alignment with each other when said pivotal member is in said desired position; detent means including respective bolts movably mounted for passing through the respective aligned openings, said bolts being movably mounted for movement generally along a line parallel to said first direction; said detent means also including bolt support means comprising respective arms thereof to which respective bolts are attached, and whch arms extend transversely to the general line of movement of the bolts in a second direction, said bolt

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  • Cleaning And Drying Hair (AREA)
US00334104A 1973-02-20 1973-02-20 Hair dryer with one finger head release Expired - Lifetime US3791045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33410473A 1973-02-20 1973-02-20

Publications (1)

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US3791045A true US3791045A (en) 1974-02-12

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Application Number Title Priority Date Filing Date
US00334104A Expired - Lifetime US3791045A (en) 1973-02-20 1973-02-20 Hair dryer with one finger head release

Country Status (9)

Country Link
US (1) US3791045A (ja)
JP (1) JPS5428785B2 (ja)
AU (1) AU6538074A (ja)
BR (1) BR7401195D0 (ja)
CA (1) CA1019564A (ja)
DE (1) DE2406869A1 (ja)
FR (1) FR2218066B3 (ja)
GB (1) GB1458769A (ja)
IT (1) IT1005000B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002955A (en) * 1974-03-28 1977-01-11 Siemens Aktiengesellschaft Housing for electrical, communications and measuring devices
US4527821A (en) * 1982-09-29 1985-07-09 Nifco Inc. Latch device for door or lid
US4964659A (en) * 1988-01-11 1990-10-23 Baldwin William C Diaphragm latch mechanism
US20070277391A1 (en) * 2006-05-31 2007-12-06 Joel Beckett Forced air flow electric shoe dryer
US20130203279A1 (en) * 2010-10-19 2013-08-08 Harting Electric Gmbh & Co. Kg Locking device for a plug-in connector housing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479075A (en) * 1966-12-19 1969-11-18 Tektronix Inc Latching device
US3702031A (en) * 1971-07-07 1972-11-07 Gen Electric Hair dryer hood tilt mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479075A (en) * 1966-12-19 1969-11-18 Tektronix Inc Latching device
US3702031A (en) * 1971-07-07 1972-11-07 Gen Electric Hair dryer hood tilt mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002955A (en) * 1974-03-28 1977-01-11 Siemens Aktiengesellschaft Housing for electrical, communications and measuring devices
US4527821A (en) * 1982-09-29 1985-07-09 Nifco Inc. Latch device for door or lid
US4964659A (en) * 1988-01-11 1990-10-23 Baldwin William C Diaphragm latch mechanism
US20070277391A1 (en) * 2006-05-31 2007-12-06 Joel Beckett Forced air flow electric shoe dryer
US8186075B2 (en) * 2006-05-31 2012-05-29 Joel Beckett Forced air flow electric shoe dryer
US20130203279A1 (en) * 2010-10-19 2013-08-08 Harting Electric Gmbh & Co. Kg Locking device for a plug-in connector housing
US9601871B2 (en) * 2010-10-19 2017-03-21 Harting Electric Gmbh & Co. Kg Locking device for a plug-in connector housing

Also Published As

Publication number Publication date
FR2218066B3 (ja) 1976-11-26
FR2218066A1 (ja) 1974-09-13
AU6538074A (en) 1975-08-14
BR7401195D0 (pt) 1974-11-05
GB1458769A (en) 1976-12-15
DE2406869A1 (de) 1974-08-29
JPS5025358A (ja) 1975-03-18
CA1019564A (en) 1977-10-25
JPS5428785B2 (ja) 1979-09-19
IT1005000B (it) 1976-07-20

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