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
  • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
  • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
  • F21W2131/20—Lighting for medical use
  • F21W2131/205—Lighting for medical use for operating theatres
• • 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
  • Y10S362/00—Illumination
  • Y10S362/804—Surgical or dental spotlight

Definitions

• the invention relates to an operating room lamp with a ceiling suspension and at least one swivel arm which carries electrical lines and which is rotatably mounted about an axis protruding from the ceiling with internal electrical lines, slip rings which are electrically insulated from one another in the region of their outside for producing electri ⁇ shear connections are arranged with the help of spring-mounted slip ring takers inside a sleeve-shaped swivel arm head as part of a pivot bearing.
• an operating light with a swivel arm which is arranged axially rotatable about a peg projecting from the ceiling, the peg being designed as a supply column and, in addition to electrical energy, oxygen and nitrous oxide leading to a connection head, from which can be supplied from a wide variety of devices required for the operation.
• the pin consists of a hollow tube with a connected pivot bearing which has slip rings for the transmission of electrical current between the support arm and the pin; it is a relatively complex arrangement since the pivot bearings consist of a large number of individual elements, such as Rotating ring, spacer ring, intermediate rings. Ring nut, spring rings and cams are constructed; It is particularly problematic to provide such a bearing for a modular construction of operating lights for various applications due to the complex structure.
• an image transmission system in operating lights which describes an operating light construction and a camera system with cable lines for the transmission of video and setting signals for a camera mounted in the light, the cable lines running inside in the operating light suspension
• ORIGINAL DOCUMENTS are housed and slip rings are provided for the transmission of high-frequency video and setting signals from a camera.
• connection body is provided as a hollow body and a lamp base with form-fitting insertable connection means in the connection body; the underside of the connection body is designed as a hollow body base with a sliding surface for the rotary movement of the lamp base, a flange of the lamp base which can be inserted in the receiving channel serving as the connecting connection means.
• a slip ring arrangement for current transmission is not provided, so that the horizontal swivel range is in the angular range of approximately 360 °.
• a pivotable holder for a wall lamp is known from US Pat. No. 5,379,205, a first and a second swivel arm having recesses for guiding electrical cables; here too the swivel range is restricted.
• DE 42 10 649 A1 discloses a device with a rotating arm for illuminating the interior of pieces of furniture from the outside; actuating means are provided between the rotating arm and a support body for the electrical supply of the light source arranged at the end of the rotating arm, so that current flows as soon as the rotating arm is outside the piece of furniture, while the power supply is interrupted when the Swivel arm is located inside the piece of furniture.
• Luminaire housings fastened to the swivel arm and possibly a video camera system and possibly brackets mounted on a swivel arm for electrically operated additional devices are to be connected to the lines located in the journal via the slip ring arrangement.
• the core area of the rotary bearing consists of a carrier body with precisely positioned slip rings, which is easy to produce by means of plastic injection molding.
• the bearing bushes can be plugged onto the respective ends of the carrier body, a positive connection against rotation being present due to the elevations and depressions formed by webs; the webs running in the axial direction are directed radially radially outwards on the end regions of the carrier body, while in the bearing bushes they are directed radially inwards to the longitudinal axis.
• the support body has the required stability with regard to its assembly and the strength with respect to the part of a boom rotatably mounted on it as a swivel arm head by means of slip-on sliding bearing bushes on its end faces.
• the carrier body and the bearing bushes together as a single injection molded part.
• Figure 1 a shows an exploded view of the carrier body with the attachable bearing bushes
• FIG. 1b shows the carrier body attached to an axis together with the attached bearing bushes
• FIG. 1c shows the hollow-cylindrical jacket as part of a swivel arm head
• FIG. 1d shows a contact carrier for grinding customers in the insertion position
• FIG. 1e shows the contact carrier in an inverted position, so that the grinding recipients can be seen
• FIG. 2a shows a longitudinal section along an essentially cylindrical grinding body
• FIG. 2b shows in the right part a cross section along the line AB of FIG. 2a, in the left part a cross section along the line CD in FIG. 2a,
• Figure 2c shows a cross section through a slip ring located on the carrier body
• FIG. 3 shows in longitudinal section the assembled state of the complete pivot bearing with the grinding body surrounding the support arm and the associated swivel arm head with the swivel arm attached to it (partially shown broken)
• Figure 4 shows schematically the structure of an operating light with two support bodies on a common axis for holding two swivel arm heads
• the carrier body 1 has a cylindrically shaped surface 2, into which slip rings 3, 4, 5 are inserted in a form-fitting manner, along the longitudinal axis 7 of the carrier body 1, the two bearing bushes 8, 9 can be seen, the respective end regions of support body 1 and the slide along the longitudinal axis 7 bearing bushing 8, 9 webs 6 ', 6 "so that due to the elevations and grooves formed by the webs after the insertion process there is a positive connection that prevents twisting around the Longitudinal axis 7 is secured.
• Both the carrier body 1 and the bearing bush 8, 9 each have hollow cylindrical recesses 11, 12, 13 along the longitudinal axis 7, which are provided for plugging onto an axis which is attached to the ends of the carrier body 1 adjoining transition areas 10 ', 10 "of the bearing bushes 8, 9 are conical, they become the supporting body 1 with its reduced outer surface compared to the bearing bushes 8, 9 Tapered diameter, so a sliding application of slip ring receivers on the bearing bush or bearing bushes on the carrier body 1 is guaranteed.
• Adjacent to the bearing bush 8, an axial bearing ring 16 is shown, which is used to hold a swivel arm head for the horizontally pivotable one Boom or swivel arm of an operating light is provided
• a preassembled axis 14 according to FIG. 1b is fastened in a flange tube fastened to the ceiling by means of a spacer ring 15 and a further spacer ring 59.
• FIG. 1e shows the contact carrier 18 in the disassembled state, so that the spring-loaded slip ring receptacles 25, 26, 27, which are usually directed toward the carrier body, point upwards for better visibility, the slip receivers each have a spring-loaded pin contact 25 ', 25 ", 26', 26 “, 27 * , 27", the contacts leading to the inner lines of the swivel arm are designated according to FIG. 1d with the numbers 25 '", 26'", 27 '"for positioning the contact carrier 18 in the jacket 17 Retaining lugs 50, 50 'are provided
• carrier body 1 consists of an essentially cylindrical, electrically insulating plastic part, which is provided at opposite ends in each case with slide-bearing bushes 8, 9 attached for rotating the cylindrical shell of the swivel arm head according to FIG. 1c
• carrier body 1 has circumferential ring grooves on its outer circumference, in the recesses of which three slip rings 3, 4, 5 arranged parallel to one another are arranged.
• the slip rings are on their inner surface facing the longitudinal axis 7 with contact tabs 36 shown schematically here. 37, 38 in order to establish a connection through the opening 40 to the lines 41, 42, 43 which are guided in the interior of the axis 14 explained with reference to FIG. 1b
• the bearing bush 8 plugged onto the carrier body 1 has a recess or bore 29 in the radial direction in the region of its front end, which is used to fasten the carrier body and, according to FIG. 3, by means of bolts 21 and bore 22 in the radial direction through axis 14 as an anti-rotation device of the electrical connection between the support body 1 and the axis 14 are provided.
• the axial forces which occur as a result of gravitation are - as explained above with reference to FIG.
• Figure 3 shows schematically a longitudinal section through the assembled assembly of axis 14, the partially broken arm 32 and pivot bearing;
• carrier body 1 with bearing bushes 8, 9 is mounted on axis 14 and is held in a locked position by means of bolt 21, which engages in the bore or opening 22 of the bearing bushing 8 and in bore 23 of the axis 14, and by means of the locking ring 31.
• the longitudinal axis of the essentially cylindrical axis 14 is also denoted here by 7, since it coincides with the longitudinal axis 7 of the support body 1
• Carrier body 1 is surrounded by the likewise substantially cylindrical swivel arm head 44, which is mechanically firmly connected to the swivel arm 32, which is partially shown here
• the swivel arm head 44 is connected at its upper end to the axial bearing ring 16, which enables the swivel arm head 44 to rotate on the bearing bush 8.
• the axial force of the swivel arm head 44 is determined by securing ring 31 and Annular groove 33 passed in axis 14
• the swivel arm head 44 is held axially and rotatably via the axial bearing 16 loosely located on the end face of the upper bearing bush 8 by the bolts 47 and 48, which connect the jacket 17 and the axial bearing ring 16, its inner jacket surface is guided radially Es This ensures that the swivel arm head and axle can be rotated permanently
• the intermediate space 49 located between the axial bearing 16 and the axis 14 has a roller bearing
• the roller bearing is preferably designed as a needle bearing
• the axis of rotation of the needle rollers running parallel to the longitudinal axis 7
• slip ring takers 25, 26, 27 are held by a common, spring-loaded contact carrier 18 and rest radially by means of spring pressure on the slip rings 3, 4, 5 and thus constant contact within the rotary bearing between the lines 41, 42, 43 of the Form axis 14 and the lines 51, 52, 53 of the swivel arm.
• the contact carrier 18 mounted in the swivel arm head is positioned according to FIGS. 1d, 1e by means of retaining lugs 50 and 50 'and, after being slid on, in the axial direction on the carrier body 1 provided with bearing bushes, the slip ring takers 25 , 26, 27 to the slip rings 3, 4, 5 are correctly adjusted without further assembly.
• FIG. 4 schematically shows the structure of an operating light with two support bodies on a common axis for holding two swivel arms, the swivel arm heads 44 of which are shown coaxially with one another; the shaft 14 is held by a broken flange tube 57. Between the flange tube 57 and the lower end 58 of the shaft 14, two mutually coaxial support bodies 1 are arranged one above the other, each of which is provided with a bearing bushing 8, 9 at its ends , as is described in more detail with reference to FIGS. 1a, 1b, 2a and FIG. 3.
• each of the two carrier bodies 1 with its slip rings 3, 4, 5 is electrically connected to the slip ring takers 25, 26, 27 in the symbolically represented swivel arm head 44 on contact carrier 18, with a complete repetition for a better overview all reference numerals of both carrier bodies have been dispensed with.
• the swivel arm 32 is shown partly broken; from this figure it can be seen that each of the two carrier bodies 1 is secured against slipping along the axis 14 by means of its lower bearing bush 9 by means of its own locking ring 31, which is each guided in an annular groove of the axis 14.
• the lines within the axis 41, 42, 43 are only partially shown for a better overview; they are for the purpose of individual power supply on the swivel arm 32nd located devices each separately up to a monitor or operating unit, not shown here; However, it is also possible to simplify the line routing by using modulators and demodulators to transmit control and video signals for lighting, camera and device functions to the three common lines to which the slip rings are connected in parallel are.
• the axis 14 is held in the flange tube 57 by two spacer rings 15, 59, which are arranged coaxially one above the other and each have radial bores 60, 61, which are used to carry out fastening bolts 62, 63 through the jacket of the flange tube 57 in openings of the jacket tube the axis 14 are provided.
• the lower end 58 of the axis 14 is closed by an attachable protective cap.

Applications Claiming Priority (3)

Publications (2)

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ID=7783457

Family Applications (1)

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Families Citing this family (20)

Family Cites Families (7)

• 1997
  • 1997-01-23 WO PCT/EP1997/000301 patent/WO1997027421A1/fr active IP Right Grant
  • 1997-01-23 ES ES97901076T patent/ES2186864T3/es not_active Expired - Lifetime
  • 1997-01-23 DK DK97901076T patent/DK0834038T3/da active
  • 1997-01-23 US US08/894,509 patent/US6030103A/en not_active Expired - Fee Related
  • 1997-01-23 AT AT97901076T patent/ATE229627T1/de not_active IP Right Cessation
  • 1997-01-23 DE DE19702222A patent/DE19702222C2/de not_active Expired - Fee Related
  • 1997-01-23 EP EP97901076A patent/EP0834038B1/fr not_active Expired - Lifetime
  • 1997-01-23 DE DE59708933T patent/DE59708933D1/de not_active Expired - Fee Related

Non-Patent Citations (1)

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