US3709453A - Vertically and circularly displaceable support - Google Patents

Vertically and circularly displaceable support Download PDF

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Publication number
US3709453A
US3709453A US00086832A US3709453DA US3709453A US 3709453 A US3709453 A US 3709453A US 00086832 A US00086832 A US 00086832A US 3709453D A US3709453D A US 3709453DA US 3709453 A US3709453 A US 3709453A
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US
United States
Prior art keywords
cable
respect
obtuse angle
portions
mounting member
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
US00086832A
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English (en)
Inventor
A Castiglioni
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Individual
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Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3709453A publication Critical patent/US3709453A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F21S8/068—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension from a stretched wire
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/34—Supporting elements displaceable along a guiding element

Definitions

  • the present invention relates to vertically movable supports for such devices as illuminating means or other displaceable objects and, more specifically, to a vertically movable support which comprises a vertical cable or rope extending tautly between a ceiling and a floor of a room and a tubular, predeterminedly shaped element mounted on the cable or rope, which element is displaceable vertically along the cable or rope and contains as integral part thereof the device which is desired to be displaced according to the users needs.
  • FIG. 1 shows the assembly of the support of the invention
  • FIG. 2 shows, partly in cross-section, an exploded detail of the support
  • FIG. 3 shows a second embodiment or variance of the invention
  • the support of the invention comprises a vertical cable or rope 1, preferably a metallic cable, extending tautly between a fastener 2 connected fixedly to the ceiling of a room and a heavy basic element 3 resting on the floor.
  • a pre-shaped tubular member 4 is mounted on the cable 1 and comprises an intermediate portion 5 which is non-coaxial with respect to the terminal portions 6 and connected to the coaxial terminal portions 6 by means of inclined junction segments 7.
  • the pre-shaped member 4 is mounted on the cable 1 by threading the cable 1 inside the tubular member 4, the cable resulting thusly axially displaced in a forced manner. In this manner, there is created between the tubular member 4 and the cable 1 a plurality of contact points, axially displaced with respect to one another, which points determine a considerable friction force sufficient to overcome the gravity force of the device supported by the support of the invention and to prevent any uncontrolled displacement of the tubular member 4 along the cable 1.
  • the supporting member 4 is connected to a device, such as for example, a lamp, which is to be positioned at different heights along the cable 1.
  • a device such as for example, a lamp
  • the supported device is a lamp 8 suitably mounted on a movable arm 9.
  • the tubular member 4 is capable furthermore of circular rotation about the vertical axis of the cable so as to enable the supported device 8 to be oriented accordingly in any planar position about said axis.
  • FIG. 3 it can be seen. that, instead of utiliz' ing a pre-shaped tubular member 4, a straight member 15 is used which is provided with at least three annular guides 16 axially displaced with respect to the vertical axis of the cable 1.
  • the cable is threaded within said guides 16 so as to obtain a portion of the cable axially displaced in a forced manner, as discussed hereinbefore.
  • the illustration has been typically limited to supporting of lamps; however, it is readily seen that the concept of the invention is not limited thereto but may be applied to any object which is to be displaced and positioned at different heights along the cable.
  • said article mounting member comprises a rigid bar and three axially spaced apart ring-like members spacedly secured thereto for receiving said cable therethrough, said ring-like members defining said first, said second and said third portions.
  • said article mounting member comprises an elongated, rigid tube for receiving said cable therethrough, said tube including two axially spaced apart end portions and at least one portion intermediate said end portions, the axis of said intermediate portion being at an obtuse angle with respect to the axes of said end portions.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Eye Examination Apparatus (AREA)
US00086832A 1970-08-28 1970-11-04 Vertically and circularly displaceable support Expired - Lifetime US3709453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT520170 1970-08-28

Publications (1)

Publication Number Publication Date
US3709453A true US3709453A (en) 1973-01-09

Family

ID=11119245

Family Applications (1)

Application Number Title Priority Date Filing Date
US00086832A Expired - Lifetime US3709453A (en) 1970-08-28 1970-11-04 Vertically and circularly displaceable support

Country Status (9)

Country Link
US (1) US3709453A (en:Method)
JP (1) JPS4934798B1 (en:Method)
BE (1) BE758893A (en:Method)
CA (1) CA941812A (en:Method)
CH (1) CH516765A (en:Method)
DK (1) DK128581B (en:Method)
ES (1) ES392998A1 (en:Method)
FR (1) FR2101316A5 (en:Method)
GB (1) GB1294709A (en:Method)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3933329A (en) * 1974-01-10 1976-01-20 Maurice Granger Support apparatus for a portable shower head
US5285908A (en) * 1992-12-08 1994-02-15 Rogers Jerrel D Flexible display

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8328869D0 (en) * 1983-10-28 1983-11-30 Avery B R Lighting fitting
DK10798A (da) * 1998-01-27 1999-07-28 Wolfgang Rudolf Anton Hirt Lavspændingslampe med strømførende friktionsbremse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US194507A (en) * 1877-08-21 Improvement in fire-escapes
US300857A (en) * 1884-06-24 Lewis j
US783741A (en) * 1904-03-05 1905-02-28 Henry D Olier Jr Electric-lamp adjuster.
US2231137A (en) * 1940-06-26 1941-02-11 Markel Electric Products Inc Electric lighting fixture
US3251569A (en) * 1964-05-29 1966-05-17 Fred L Rynearson Adjustable hanger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US194507A (en) * 1877-08-21 Improvement in fire-escapes
US300857A (en) * 1884-06-24 Lewis j
US783741A (en) * 1904-03-05 1905-02-28 Henry D Olier Jr Electric-lamp adjuster.
US2231137A (en) * 1940-06-26 1941-02-11 Markel Electric Products Inc Electric lighting fixture
US3251569A (en) * 1964-05-29 1966-05-17 Fred L Rynearson Adjustable hanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3933329A (en) * 1974-01-10 1976-01-20 Maurice Granger Support apparatus for a portable shower head
US5285908A (en) * 1992-12-08 1994-02-15 Rogers Jerrel D Flexible display

Also Published As

Publication number Publication date
DE2052042A1 (de) 1972-03-16
GB1294709A (en) 1972-11-01
BE758893A (fr) 1971-04-16
JPS4934798B1 (en:Method) 1974-09-18
DK128581B (da) 1974-05-27
FR2101316A5 (en:Method) 1972-03-31
ES392998A1 (es) 1973-11-01
DE2052042B2 (de) 1976-07-22
CA941812A (en) 1974-02-12
CH516765A (it) 1971-12-15

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