US3736418A - Shade for a light - Google Patents

Shade for a light Download PDF

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Publication number
US3736418A
US3736418A US00096842A US3736418DA US3736418A US 3736418 A US3736418 A US 3736418A US 00096842 A US00096842 A US 00096842A US 3736418D A US3736418D A US 3736418DA US 3736418 A US3736418 A US 3736418A
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US
United States
Prior art keywords
elements
laminar
side edges
shade
hook
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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
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US00096842A
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English (en)
Inventor
M Havlova
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MESSRS VEST GmbH
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MESSRS VEST GmbH
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    • 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
    • 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
    • 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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades

Definitions

  • Each element is provided with hook-like projections at both opposite lateral edges and recesses displaced in relation to the hook-like projections.
  • Each of the plurality of adjacent rows consisting of the elements is offset to a preceding row thus forming a three-dimensional shade body.
  • the elements are bent in such a way that each of said elements forming a first row is fastened at a supporting member by means of said hook-like projections.
  • the recess or recesses of the elements are displaced in relation to the hook-like projections so that each of a plurality of adjacent rows consisting of said elements being arranged in the same way like the first row is offset to a preceding row thus forming a three-dimensional shade body.
  • the elements bent outwardly, viewed from the light source, are already strengthened on account of this shaping and they form a stable row.
  • the nondeformability of this row is improved by the adjacent rows, as the bent elements are each in engagement with two offset elements of each adjacent row.
  • the positioning of the recesses in relation to the hook-like projections also gives the advantage that a three-dimensional shade body is produced which surrounds the light source for instance in the form of a sphere. With this for example a spherical, vaulted shade is obtained from elements of congruent shape, the curvature of which being determined by the number of elements arranged in a row.
  • the elements are straight in their development at the lateral edges provided with the hook-like projections and the other two edges are arcuately curves.
  • a shade in which the diameter of the rows of elements rapidly increases, can advantageously be produced in that the two side edges provided with the hook-like projections extend parallel.
  • a less sudden increase in the diameter can be achieved in that the two side edges provided with the hook-like projections are convergent.
  • the elements consist advantageously of resiliently elastic material, in particular plastics, in order to thereby facilitate the assembly and to improve the shape retaining :property of the light, especially during usage.
  • Plastics for example can be used as plastics, which can be utilized in sheet thicknesses of up to 0.7mm, however preferably of 0.4mm.
  • metals can also be used which can be rolled into a curved shape.
  • FIG. 1 shows aplan view of a quadrant of a substantially ellipsoidal shade
  • FIG. 2 shows a diagrammatic section along the line II-II in FIG. 1,
  • FIG. 3 shows the development of an element substantially in natural size
  • FIG. 4 shows another form of embodiment of an ele ment of which a part has been omitted
  • FIG. 5 shows a form of embodiment of the hook-like projection of an element according to FIG 3, which is intended for the first row of a shade according to FIG.
  • FIG. 6 shows the development of a connecting element
  • FIG. 7 shows a cutaway portion of a wall light made of elements according to FIG. 3 and 6,
  • FIG. 8 shows one half of a corner light or the end portion of a wall light made of elements according to FIG.
  • FIG. 9 shows a section along the line IX-IX in FIG.
  • FIG. 10 shows the development of an element moditied in relation to FIG. 3 and 4,
  • FIG. 11 shows an elevation of a substantially ellipsoidal shade of a suspended light according to FIG. 1,
  • FIG. 12 shows a complete corner light according to FIG. 8,
  • FIG. 13 shows a plan view of the light according to FIG. 12,
  • FIG. 14 shows an elevation of a suspended light, formed by four corner light parts according to FIG. 12 and 13 and
  • FIG. 15 shows a plan view of the suspended light according to FIG. 14.
  • FIGS. 1, 2 and 11 show a substantially spherical shade for a light made up of individual elements.
  • a supporting member 10 in the form of a wire ring there are arranged the elements 11 of a first row 12, to which further concentric rows 13 to 18 are appended, enveloping a-lightsource'ZO.
  • the rows 12 to 18 each have an equal number of elements 11 which however are bent with a different radius of curvature.
  • One element 11 is made straight in the development at the side edges provided with hook-like projections 24, 25, while the other two edges 21, 22 are arcuately curved as boundary curves.
  • the arcuate curves can as in FIG. point in opposite directions. In accordance with FIG. 3 they point in the same direction so that the element 11 consists of a substantially arcuate blank with an inner boundary curve 21 and an outer boundary curve 22.
  • the two boundary curves have the same curvature which extends into tangents of different inclinations.
  • the two edges or boundary curves 21 and 22 each run into a substantially straight edge 23 on the side edges. In the region of this edge 23 there are formed the upper and lower hooklike projections 24 and 25.
  • the edge 23 is provided, adjacent and parallel to it, with indentations 26 having recesses 27, the recesses 27 being shorter than the indentations 27.
  • slots 31, 32 which in the embodiment according to the FIG. 3 and 4 start at the edges 21, 22, whereas in the embodiment according to FIG. 10 the slot 32 lies in the surface of the element 11.
  • the distance 30 between the ends of the slots 31, 32 pointing at one another corresponds to the length of the indentations 26.
  • the width of slots 31, 32 corresponds approximately to double the material thickness of an element 11.
  • the indentation 26 is offset vertically in relation to the distance 30 by about half the length of the indentation 26 or of the distance 30.
  • the extent of this offset forms the basis of the form of embodiment of a shade represented in FIG. 1, 2 and 11.
  • a specific number of elements 11 is arranged on the supporting member 10 to form one row 12. Since the number of elements is the same in all the rows, the shape of the finished shade depends essentially on the compactness of the elements distributed along the supporting ring 10, i.e. on their number. A large number of elements thus produces an ellipsoidal envelope curve projecting out a considerable way and falling away only gradually.
  • the row 13 is produced by the hook-like projections 24, 25 of two adjacent elements 11 of the row 13 engaging in the slots 31, 32 of one element of the row 12.
  • the other hook-like projections 24, 25 of the elements 11 of the row 13 engage in the slots 31, 32 of the element adjacent thereto of the row 12.
  • radius of curvature thus depends on the compactness or the number of elements 11 in the row 12, respectively.
  • FIG. 2 and 11 illustrate how the aforementioned shade can be completed to form a closed hollow body.
  • Two rows of elements 46 and 47 for example are arranged on a ring or hoop 40 made preferably of translucent material, which may be elastic and has a diameter adapted to the particular requirements. These rows of elements have the same number of elements 11 as the rows 16 and 17. Their diameter likewise corresponds to these rows 16 and 17, which is made possible by the ring 40.
  • the rows of elements 12 to 17 and 46 and 47 are joined to one another by the row 18 which consists of connecting elements 19.
  • FIG. 6 Such a connecting element is shown in FIG. 6.
  • the lateral outer edges 23 of the connecting element 19 are about twice as long as those of an individual element according to FIG. 3.
  • the latter are arranged in foldable symmetry between the boundary curves 21 which correspond to the inner boundary curve 21 of the individual element according to FIG. 3.
  • the row 18 is formed in that the hook-like projections 24 and 25 of two adjacent elements 19 engage simultaneously in the slots 31, 32 of the corresponding elements 11 of the rows 17 and 47.
  • the elements 11 of these rows can have in the region of the upper hook-like projection 24 an eyelet 29 which is formed at the appropriate end of the indentation 26.
  • the eyelets 29 can engage on a ring 10 if this has a corresponding cross-section.
  • a supporting member 50 for an elongated, rectangular wall light consists of an upper and a lower strip 51, which strips are adapted to the indentations 26 as regards shape and width.
  • the strips 51 are connected to one another by correspondingly formed cross members 52 which can have brackets 53 for fastening the light to the wall and which carry the light source 20.
  • Extending outwards from the strips 51 are parallel rows 12 to 16 and 42 to 46 which comprise of elements 11.
  • the rows 16 and 46 as already described are connected to one another by a row 18 of elements 19.
  • the lateral end portion of such a light can be formed above all for the elements by corresponding stop members on the faces of the strips 51 which are completed by a corresponding end plate.
  • the end portion for a strip according to FIG. 7 is made in accordance with FIG. 8.
  • the strips 51 in this case are somewhat inclined so that the rows 12 to 16 and 42 to 46 can terminate in a correspondingly staggered manner.
  • FIG. 8 illustrates simultaneously half of a corner light, in which the strips 51 are bent round through viewed in plan and the said angle is located at the point at which the two strips have their greatest distance from one another, which is shown in FIG. 12 and 13.
  • the strips 51 can here be selected about l m long so that the diagonal length of the light amounts to 2 m.
  • the strips 51 can be joined together by screws (not shown) and attached to a common fixing plate (likewise not shown). This plate is provided with the components for suspending the light and for the current supply.
  • the rows 12 to 16 and 42 to 46 do not comprise the same number of elements. Preferably, it may be taken from FIG. 12 and 13 that only one element 11 forms row 12 or 42, respectively. Rows 13 to 16 and 43 to 46 comprise an increasing number of elements. Instead of one element 11 row 12 or 42, respectively, may comprise more than one element.
  • a wall-light in relief can be made from the cornerlight portions according to FIG. 12 and 13 in such a way that only two of these portions are combined together. This corresponds practically to the half of the lamp represented in Flg. which then likewise corresponds to the elevation in FIG. 14.
  • the width of a lamp can be determined by the number of individual elements 11 used in one row. A large number of elements brings about in all embodiments small radii of curvature and therefore wide shades. This can also be achieved however by the distance between the edges 23 being made larger and therefore the elements are correspondingly wider. Owing to the shape of the elements a relationship results between the height and width of the lamp. If it is desired, in particular with wall-lights, to produce elongated shapes without the shade being raised too much from the wall, then elements according to FIG. 4 or 10 can be employed. With these elements the degree of projection is reduced in that the indentations 26 are somewhat inclined towards the slots or recesses 31, 32.
  • the declination of the rows formed from such elements is therefore steeper but with the same basic design, as for example in the embodiment according to FIG. 2.
  • the row 18 therefore approaches more closely to the light source 20 or has even the diameter of the row 12 again, so that the row of connecting elements 19 and the inversely formed rows 46, 47 can be omitted.
  • FIG. 4 and 10 show an element which is already modified in relation to the individual element 11 and the corresponding connecting element 19.
  • the boundary curves for example are angular.
  • the slots or recesses 31, 32 have a specific position in relation to the indentations 26 and indeed in such a way that the slots or recesses 31, 32 are arranged in the center between the indentations 26 and are offset vertically in relation to these latter.
  • resiliently elastic plastics for producing the elements, they can for example consist of metal.
  • the elements are then bent according to the plan shape required. Even angular plan shapes can be used, however in this respect it must be taken into consideration that prefabrication of the individual elements for the particular rows presupposes a higher labor expenditure.
  • the valid relationship is that the indentations 26 are displaced vertically by about half the length in relation to the slots or recesses 31, 32. This displacement can be varied in order to obtain certain shade shapes.
  • a substantially indirect illumination is ensured in that the width of one element 1 1 is at least as large as the distance apart of the edges or boundary curves 21, 22 of the elements 11 of the two adjacent element rows directed towards this element 1 l I
  • the slots or recesses 31 and 32 are arranged in the region of the edges 21 and 22 and open out into these. This is not obligatory.
  • individual slots or all the slots 31 and 32 can take the form of oblong holes, approximately as shown in FIG.
  • the width of the slots or oblong holes has maximum dimensions such that in each case two hook-like projections 24, 25 can be inserted lying flat on one another.
  • the shade according to the invention has no rigid support arrangements which commonly cause shadows.
  • the elements are formed in such a way that the portions of the elements determining the rigidity lie parallel to the path of the rays. These sections do not therefore appear disadvantageously, although they secure satisfactorily the elements.
  • a shade for a light source comprising a plurality of individual flexible laminar elements deformable from a first configuration where the laminar element is in a flat plane into a second configuration where the laminar element is in a curved plane, in the first configuration said laminar elements are of similar shape and size, said laminar elements having a pair of first oppositely disposed side edges, at least one hook-like projection located at each of said first side edges, at least one slot formed in each said laminar element intermediate said first side edges, said slot arranged to receive said hooklike projections of adjacent said elements, a supporting member, a first row of said laminar elements in the second configuration each fastened on said supporting member by means of said hook-like projections, on each said laminar element said slot is displaced in the direction in which said first side edges extend relative to said hook-like projections so that a second row of said laminar elements in the second configuration can be secured in offset relationship to the first row by means of said hook-like projections thereon fitted into said slots in said lamin
  • a shade for a light source comprising a plurality of individual flexible laminar elements deformable from a first configuration where the laminar element is in a flat plane into a second configuration where the laminar element is in a curved plane, in the first configuration said laminar elements are of similar shape and size, said laminar elements having a pair of first oppositely disposed side edges, at least one hook-like projection located on each said first side edge, at least one slot formed in each said laminar element intermediate said first side edges, said slot arranged to receive said hooklike projections of adjacent said elements, a supporting member, a first row of laminar elements in the second configuration each fastened on said supporting member by means of said hook-like projections, on each said laminar element said slot is displaced in the direction in which said first side edges extend relative to said hook-like projections so that a second row of said laminar elements in the second configuration can be secured in offset relationship to said first row by means of said hook-like projections thereon fitted into said slots in said laminar elements
  • a shade body as set forth in claim 3, in which said first side edges having said hook-like projections extend in parallel relationship.
  • a shade as set forth in claim 3, wherein said first side edges having said hook-like projections are arranged in converging relationship.
  • a shade as set forth in claim 1, wherein said first side edges extend in the vertical direction, a pair of spaced second side edges extending between said first side edges in the horizontal directions so that in the second configuration of said elements the width of one said element in one row is at least as great as the horizontal distance a part of the adjacent positions between said first side edges of said element in the adjacent rows of elements.
  • a shade as set forth in claim 1, wherein said supporting member has a ring-like circular profile and is positioned in the upper part of the shade, and said hook-like projections fastened on said supporting member each have an eyelet formed therein which engages the circular profile of said supporting member.
  • a shade for a light source comprising a plurality of individual flexible laminar elements deformable from a first configuration where the laminar element is in a flat plane into a second configuration where the laminar element is in a curved plane, in the first config uration said laminar elements are of similar shape and size, said laminar elements having a pair of first oppositely disposed side edges, at least one hook-like projection located on each said first side edge, at least one slot formed in each said laminar element intermediate said first side edges, said slot arranged to receive said hook-like projections of adjacent said laminar elements, a supporting member, a first row of said laminar elements in the second configuration each fastened on said supporting member by means of said hook-like projections, on each said laminar element said slot is displaced in the direction in which said first side edges extend relative to said hook-like projections so that a second row of said laminar elements in the second configuration can be secured in offset relationship to said first row by means of said hook-like projections thereon fitted
  • a shade body as set forth in claim 10, wherein said connecting elements have substantially the form of one said laminar element in said first plurality of rows and one said laminar element in said second plurality of rows united symmetrically along a horizontal line in overlapping relationship and each said connecting element has at least two hook-like projections on two opposite side edges thereof and is free of slots therein with said hook-like projections arranged in alignment on said side edges.
  • a shade as set forth in claim 10, wherein the number of elements increases in succeeding rows in the downward direction in said first plurality of rows and in succeeding rows in the upward direction in said second plurality of rows, said upper supporting member and said another supporting member formed of a right angle strip, a shade portion formed of a said first plurality of rows and a said second plurality of rows connected together by said connecting elements, and at least two of said shade portions joined together in forming a common shade body.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
US00096842A 1969-12-13 1970-12-10 Shade for a light Expired - Lifetime US3736418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691962694 DE1962694B2 (de) 1969-12-13 1969-12-13 Schirm fuer eine leuchte

Publications (1)

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US3736418A true US3736418A (en) 1973-05-29

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US00096842A Expired - Lifetime US3736418A (en) 1969-12-13 1970-12-10 Shade for a light

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US (1) US3736418A (fr)
JP (1) JPS4929347B1 (fr)
AT (1) AT300119B (fr)
BE (1) BE776401Q (fr)
DE (1) DE1962694B2 (fr)
DK (1) DK131058B (fr)
GB (1) GB1267610A (fr)
NL (1) NL7018124A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895229A (en) * 1972-11-14 1975-07-15 Holger Strom Hollow shell-like bodies and element for use in construction of same
US4471596A (en) * 1982-08-23 1984-09-18 Deaton Charles U Vault grid
US4654767A (en) * 1985-03-18 1987-03-31 Masami Yamaguchi Lampshade
WO1992008075A1 (fr) * 1990-11-02 1992-05-14 Leo Anker Jensen Dispositif diffuseur de lumiere
US20090196050A1 (en) * 2008-01-31 2009-08-06 Han-Chung Chiang Lighting fixture with modularized lampshade
USD762910S1 (en) * 2015-04-09 2016-08-02 Swarovski Lighting, Ltd. Light
USD767817S1 (en) * 2015-08-10 2016-09-27 Travis James Roe Face of a sheet element used in construction of hollow shaped bodies
USD783447S1 (en) * 2015-12-10 2017-04-11 Travis James Roe Pointed face of a sheet element used in construction of hollow shaped bodies
USD784188S1 (en) * 2015-12-09 2017-04-18 Travis James Roe Squared face of a sheet element used in construction of hollow shaped bodies
USD791384S1 (en) 2016-04-05 2017-07-04 Swarovski Lighting, Ltd. Light
USD792629S1 (en) * 2016-03-16 2017-07-18 Zhisheng Tang Ceiling lamp
USD848050S1 (en) * 2017-11-16 2019-05-07 Terzani S.R.L. Lighting fixture
USD869732S1 (en) * 2017-01-31 2019-12-10 Andreas Rye Lamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB582300A (en) * 1944-09-08 1946-11-12 Edward Nathaniel Bancroft Improvement in the construction of lamp shades and other shaped articles of a naturerequiring sectional rigidity
GB653645A (en) * 1948-02-25 1951-05-23 John Benedict Heppel Improvements in or relating to the construction of lamp shades, and other hollow articles
US3364349A (en) * 1965-04-12 1968-01-16 Sidney R. Witz Lamp shade construction
US3562077A (en) * 1966-10-26 1971-02-09 Raoul Raba Component for use in making decorative structures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB582300A (en) * 1944-09-08 1946-11-12 Edward Nathaniel Bancroft Improvement in the construction of lamp shades and other shaped articles of a naturerequiring sectional rigidity
GB653645A (en) * 1948-02-25 1951-05-23 John Benedict Heppel Improvements in or relating to the construction of lamp shades, and other hollow articles
US3364349A (en) * 1965-04-12 1968-01-16 Sidney R. Witz Lamp shade construction
US3562077A (en) * 1966-10-26 1971-02-09 Raoul Raba Component for use in making decorative structures

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895229A (en) * 1972-11-14 1975-07-15 Holger Strom Hollow shell-like bodies and element for use in construction of same
US4471596A (en) * 1982-08-23 1984-09-18 Deaton Charles U Vault grid
US4654767A (en) * 1985-03-18 1987-03-31 Masami Yamaguchi Lampshade
WO1992008075A1 (fr) * 1990-11-02 1992-05-14 Leo Anker Jensen Dispositif diffuseur de lumiere
US20090196050A1 (en) * 2008-01-31 2009-08-06 Han-Chung Chiang Lighting fixture with modularized lampshade
USD792001S1 (en) 2015-04-09 2017-07-11 Swarovski Lighting, Ltd. Light
USD762910S1 (en) * 2015-04-09 2016-08-02 Swarovski Lighting, Ltd. Light
USD767817S1 (en) * 2015-08-10 2016-09-27 Travis James Roe Face of a sheet element used in construction of hollow shaped bodies
USD784188S1 (en) * 2015-12-09 2017-04-18 Travis James Roe Squared face of a sheet element used in construction of hollow shaped bodies
USD783447S1 (en) * 2015-12-10 2017-04-11 Travis James Roe Pointed face of a sheet element used in construction of hollow shaped bodies
USD792629S1 (en) * 2016-03-16 2017-07-18 Zhisheng Tang Ceiling lamp
USD791384S1 (en) 2016-04-05 2017-07-04 Swarovski Lighting, Ltd. Light
USD869732S1 (en) * 2017-01-31 2019-12-10 Andreas Rye Lamp
USD848050S1 (en) * 2017-11-16 2019-05-07 Terzani S.R.L. Lighting fixture

Also Published As

Publication number Publication date
DE1962694B2 (de) 1971-03-25
DE1962694A1 (fr) 1971-03-25
DK131058B (da) 1975-05-20
JPS4929347B1 (fr) 1974-08-03
DK131058C (fr) 1975-10-06
AT300119B (de) 1972-07-10
NL7018124A (fr) 1971-06-15
BE776401Q (fr) 1972-06-08
GB1267610A (en) 1972-03-22

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