EP2589863A1 - Adjusting device of a lamp - Google Patents
Adjusting device of a lamp Download PDFInfo
- Publication number
- EP2589863A1 EP2589863A1 EP12176917.8A EP12176917A EP2589863A1 EP 2589863 A1 EP2589863 A1 EP 2589863A1 EP 12176917 A EP12176917 A EP 12176917A EP 2589863 A1 EP2589863 A1 EP 2589863A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- positioning member
- adjusting device
- engaging recess
- positioning
- adjusting
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
- F21V21/14—Adjustable mountings
- F21V21/26—Pivoted arms
-
- 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
- F21V21/14—Adjustable mountings
- F21V21/26—Pivoted arms
- F21V21/28—Pivoted arms adjustable in more than one plane
Abstract
An adjusting device of a lamp has two positioning members (10, 10A), two connecting arms (20) and an adjusting bolt (30). Each positioning member (10, 10A) has two engaging recesses (11, 11A, 12, 12A). Each connecting arm (20) has at least one ball-shaped end (21) rotatably mounted in the engaging recesses (11, 11A, 12, 12A). The adjusting bolt (30) is mounted through one positioning member (10) and is screwed on to the other positioning member (10A). A lighting device (44) is attached to an end of multiple adjusting devices that are sequentially connected to each other. By loosening or tightening the positioning members (10, 10A) and the adjusting bolts (30), the connecting arms (20) are able to pivot or are held in specific positions. Heights of the lighting device (44) and range that the lighting device (44) illuminates are diversely adjusted.
Description
- The present invention relates to an adjusting device of a lamp, especially to an adjusting device that is used to allow heights and positions of a light of the lamp being adjustable.
- A desk lamp is placed on a desk or other planes to provide illumination and is essential to daily lives. A conventional desk lamp has a base, a pole rotatably mounted on the base and a light pivotally connected to a top end of the pole. Thus, the pole as well as the light is rotatable relative to the base, and the light can be pivoted up and down relative to the pole and the base. Consequently, positions and directions that the light illuminates are adjustable.
- However, although the pole allows the positions and the directions that the light illuminates to be adjustable, a length of the pole is fixed. Therefore, to adjust the illumination height and to extend the illumination range only relies on pivoting the light up and down so that the illumination height and range are limited. Consequently, manipulation of the conventional desk lamp is also limited.
- The main objective of the present invention is to provide an adjusting device of a lamp. The adjusting device has two positioning members, two connecting arms and an adjusting bolt. Each positioning member has two engaging recesses. Each connecting arm has at least one ball-shaped end rotatably mounted in the engaging recesses. The adjusting bolt is mounted through one positioning member and is screwed on to the other positioning member.
- A lighting device is attached to an end of multiple adjusting devices that are sequentially connected to each other. By loosening or tightening the positioning members and the adjusting bolts of the adjusting devices, pressures that the positioning members applied to the ball-shaped ends of the connecting arms and frictions between the positioning members and the ball-shaped ends of the connecting arms change. Thus, the connecting arms are able to pivot or are held in specific positions, and heights of the lighting device and range that the lighting device illuminates are diversely adjusted.
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Fig. 1 is a perspective view of an adjusting device of a lamp in accordance with the present invention; -
Fig. 2 is an exploded perspective view of the adjusting device inFig. 1 ; -
Fig. 3 is a side view in partial section of the adjusting device inFig. 1 ; -
Fig. 4 is an operational side view of the adjusting device inFig. 1 ; -
Fig. 5 is an exploded perspective view of another embodiment of an adjusting device of a lamp in accordance with the present invention; and -
Fig. 6 is side view in partial section of the adjusting device inFig. 5 . - With reference to
Figs. 1 ,2 and5 , an adjusting device of a lamp in accordance with the present invention comprises twopositioning members arms 20, an adjustingbolt 30 and fourwashers 16. - With further reference to
Fig. 3 , thepositioning members positioning member engaging recess engaging recess holes - The end surfaces of the
positioning member positioning member other positioning member - The first
engaging recess positioning member positioning member engaging recess positioning member engaging recess positioning member - The recess bottoms are respectively defined in the first
engaging recess engaging recess holes positioning member - One
positioning member 10 further has amounting hole 13 formed through thepositioning member 10 and disposed between the firstengaging recess 11 and the secondengaging recess 12. Theother positioning member 10A further has a threadedhole 14A formed through thepositioning member 10A and disposed between the firstengaging recess 11A and the secondengaging recess 12A. - The connecting
arms 20 are pivotally mounted between thepositioning members arm 20 has at least one ball-shaped end 21. One of the at least one ball-shaped end 21 of one connectingarm 20 is rotatably mounted in the firstengaging recesses positioning members shaped end 21 of the other connectingarm 20 is rotatably mounted in the secondengaging recess positioning members - The adjusting
bolt 30 is T-shaped, is mounted through thepositioning members head 31, abolt body 32 and aseparator 33. The grippinghead 31 is elongated, is disposed beside thepositioning member 10 having themounting hole 13 and has an inner surface corresponding to thepositioning member 10 having themounting hole 13. Thebolt body 32 is formed on and protrudes from the grippinghead 31, is mounted through themounting hole 13 and the threadedhole 14A and adjustably engages thepositioning member 10A having the threadedhole 14A. Theseparator 33 is formed on and around thebolt body 32, is disposed adjacent to the grippinghead 31 and abuts thepositioning member 10 having themounting hole 13. - With further reference to
Figs. 5 and6 , thewashers 16 are respectively mounted in the firstengaging recesses engaging recesses positioning members positioning members shaped ends 21 of the connectingarms 20. Eachwasher 16 has a convex surface and a concave surface. The convex surface of thewasher 16 corresponds to the recess bottom of thepositioning member washer 16 is grained and corresponds to the ball-shaped end 21 of the connectingarm 20. - When the adjusting
bolt 30 is tightened with thepositioning member 10A having the threadedhole 14A, theseparator 33 and the grippinghead 31 of the adjustingbolt 30 push thepositioning member 10 having themounting hole 13. Pressure that the positioningmembers shaped end 21 of the connectingarms 20 and friction between thepositioning member shaped end 21 of the connectingarms 20 and thewashers 16 increase. Thus, the connectingarms 20 are unable to pivot relative to the positioningmembers - When the adjusting
bolt 30 is loosened from thepositioning member 10A having the threadedhole 14A, the pressure that thepositioning members shaped end 21 of the connectingarms 20 and the friction between thepositioning member shaped end 21 of the connectingarms 20 and thewashers 16 decrease. Thus, the connectingarms 20 are able to pivot relative to the positioningmembers arms 20 are adjusted. - With reference to
Fig. 4 , a lamp has abase 40, three adjusting devices of the present invention and alighting device 44. Thebase 40 is placed on a plane. - The three adjusting devices are defined as a
first adjusting device 41, asecond adjusting device 42 and athird adjusting device 43. The first adjustingdevice 41 has a first connectingarm 410 and an upper rod. The first connectingarm 410 is attached to thebase 40. The second adjustingdevice 42 has a lower rod and an upper rod. The lower rod of thesecond adjusting device 42 and the upper rod of thefirst adjusting device 42 are integrated into a second connectingarm 411. The third adjustingdevice 43 has a lower rod and a fourth connectingarm 430. The lower rod of thethird adjusting device 42 and the upper rod of thesecond adjusting device 42 are integrated into a third connectingarm 420. - The
lighting device 44 is attached to the fourth connectingarm 430 of thethird adjusting device 43 and has at least onelight emitting element 440 mounted on thelighting device 44. - By pivoting or holding the connecting
arms device device lighting device 44 and range that thelighting device 44 illuminates are diversely adjusted.
Claims (7)
- An adjusting device of a lamp characterized by comprising:two positioning members (10, 10A), each positioning member (10, 10A) having an inner surface corresponding to the inner surface of the other positioning member (10A, 10), a first engaging recess (11, 11A) being convex and formed in the inner surface of the positioning member (10, 10A), a second engaging recess (12, 12A) being convex, formed in the inner surface of the positioning member (10, 10A) and separated from the first engaging recess (11, 11A), and one positioning member (10) further having a mounting hole (13) formed through the positioning member (10) and disposed between the first engaging recess (11) and the second engaging recess (12) and the other positioning member (10A) further having a threaded hole (14A) formed through the positioning member (10A) and disposed between the first engaging recess (11A) and the second engaging recess (12A);two connecting arms (20) pivotally mounted between the positioning members (10, 10A), each connecting arm (20) having at least one ball-shaped end (21), one of the at least one ball-shaped end (21) of one connecting arm (20) rotatably mounted in the first engaging recesses (11, 11A) of the positioning members (10, 10A), and one of the at least one ball-shaped end (21) of the other connecting arm (20) rotatably mounted in the second engaging recess (12, 12A) of the positioning members (10, 10A); andan adjusting bolt (30) having a bolt body (32) mounted through the mounting hole (13) and the threaded hole (14A) and adjustably engaging the positioning member (10A) having the threaded hole (14A).
- The adjusting device as claimed in claim 1 further comprising four washers (16) respectively mounted in the first engaging recesses (11, 11A) and the second engaging recesses (12, 12A) of the positioning members (10, 10A) and respectively held between the positioning members (10, 10A) and the ball-shaped ends (21) of the connecting arms (20), and each washer (16) having a concave surface being grained and corresponding to the ball-shaped end (21) of the connecting arm (20).
- The adjusting device as claimed in claim 1 or 2, wherein
the adjusting bolt (30) further has a gripping head (31) being elongated; and the bolt body (32) of the adjusting bolt (30) is formed on and protrudes from the gripping head (31). - The adjusting device as claimed in claim 3, wherein
each positioning member (10, 10A) is an elongated panel and has two end surfaces;
the first engaging recess (11, 11A) of each positioning member (10, 10A) is disposed adjacent to one end surface of the positioning member (10, 10A); and
the second engaging recess (12, 12A) of each positioning member (10, 10A) is disposed adjacent to the other end surface of the positioning member (10, 10A). - The adjusting device as claimed in claim 4, wherein the end surfaces of each positioning member (10, 10A) are convex.
- The adjusting device as claimed in claim 5, wherein each positioning member (10, 10A) further has
two recess bottoms respectively defined in the first engaging recess (11, 11A) and the second engaging recess (12, 12A); and
two through holes (15, 15A) respectively formed through the recess bottoms of the positioning member (10, 10A). - The adjusting device as claimed in claim 6, wherein the adjusting bolt (30) further has a separator (33) formed on and around the bolt body (32), disposed adjacent to the gripping head (31) and abutting the positioning member (10) having the mounting hole (13).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW100220756U TWM424444U (en) | 2011-11-03 | 2011-11-03 | Adjusting device of lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2589863A1 true EP2589863A1 (en) | 2013-05-08 |
Family
ID=46461629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12176917.8A Withdrawn EP2589863A1 (en) | 2011-11-03 | 2012-07-18 | Adjusting device of a lamp |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2589863A1 (en) |
TW (1) | TWM424444U (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2440873A (en) * | 1945-03-31 | 1948-05-04 | Mcgill Mfg Company Inc | Universally adjustable support |
GB2075589A (en) * | 1980-05-12 | 1981-11-18 | Anderson George Henry | Adjustable joint |
US6220556B1 (en) * | 1999-05-28 | 2001-04-24 | Thomas M. Sohrt | Universally adjustable mounting system for switches, or the like |
US20050095058A1 (en) * | 2003-10-31 | 2005-05-05 | Gamber Johnson Llc | Ball and socket mounting assembly |
-
2011
- 2011-11-03 TW TW100220756U patent/TWM424444U/en not_active IP Right Cessation
-
2012
- 2012-07-18 EP EP12176917.8A patent/EP2589863A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2440873A (en) * | 1945-03-31 | 1948-05-04 | Mcgill Mfg Company Inc | Universally adjustable support |
GB2075589A (en) * | 1980-05-12 | 1981-11-18 | Anderson George Henry | Adjustable joint |
US6220556B1 (en) * | 1999-05-28 | 2001-04-24 | Thomas M. Sohrt | Universally adjustable mounting system for switches, or the like |
US20050095058A1 (en) * | 2003-10-31 | 2005-05-05 | Gamber Johnson Llc | Ball and socket mounting assembly |
Also Published As
Publication number | Publication date |
---|---|
TWM424444U (en) | 2012-03-11 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Extension state: BA ME |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20131109 |