Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/26—Incorporation of winding devices for electric cables
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
  • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
  • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
  • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
  • B65H75/44—Constructional details
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/30—Handled filamentary material
  • B65H2701/34—Handled filamentary material electric cords or electric power cables

Definitions

• Cable drum with an unsupported drum flange which has a stop means
• the invention relates to a cable drum according to the preamble of claim 1.
• a cable drum in particular for a vacuum cleaner, with a drum body and a base plate relative to the drum body is rotatably mounted.
• a brake shoe is movable relative to the base plate in the radial direction and elastic elements are provided, through which the cable drum is mounted in a body receiving it, in particular in a vacuum cleaner.
• a cable drum is provided in which a derivative of the braking pulse is achieved on the housing by the use of elastic elements for mounting the cable drum in a housing.
• the drum core is rotatably mounted on a support structure. The local storage of the drum core takes place both at a rear drum flange and at a front drum flange relative to the support structure of the cable drum.
• the object of the invention is to simplify the storage of the drum core on the support structure and still achieve a high level of security with mechanical overload of the cable drum.
• this object is achieved in that the front drum flange is designed to be unsupported and has a stop means, the one
• the stop means Before the deformations take on a degree that would lead to permanent damage, the stop means already comes to rest on the counter stop means, so that no further deformation of support structure or drum core can take place. Occurring overload forces are then derived via the stop means on the counter stop means. Once the overload is removed from the cable drum, the support structure or the drum core returns to its original position in which the stop means from the counter-stop means is again separated to form a gap. Since it is short-term shock loads in most cases of overload, the stop means only very briefly against the counter-stop means, so that there is no significant wear on the contact points of stop means and counter-stop means, especially at the time of impact loading the cable drum rather not in Movement should be.
• the stop means and the counter stop means are designed in particular for receiving radial forces which act on the cable drum.
• the stop means may be a stop ring arranged coaxially with the rotatably mounted cable drum on the front drum flange and having a radial stop face facing the counter stop means. This design of the stop means as a stop ring, the radial forces can be derived via the counter-stop means and at the same time the drum core is further rotatably supported on the support structure.
• the radial stop surface of a stop ring on a smaller diameter than the outer diameter of the drum flange Due to the smaller diameter of the stop ring relative to the outer diameter of the drum flange, the size of the cable drum not enlarged. Furthermore, due to the smaller diameter, the stop ring has the moving speed of a stop ring resting against the stop stop means smaller than with a stop ring having a diameter corresponding to the outside diameter of the drum flange or larger. By this measure, friction and thus wear between the stop ring and counter stop means are prevented.
• the radial abutment surface of the stop ring may be formed protruding in the axial direction from the front drum flange. This has the advantage that the radial abutment surface of the stop ring is mounted farthest on the end of the drum core facing the support structure. In this case, the largest lever arm is used to transmit the radial forces occurring during overload over the stop ring on the counter stop means.
• stop means and the counterstop means may be subjected to normal mechanical service loading of the cable drum to form a drum
• Supporting structure facing away from the end of the drum core remains unsupported and thus exerts no braking effect on the drum core.
• the gap width should have a size at which the stop means comes in an elastic deformation of the cable drum due to introduced radial forces before reaching a mechanical load limit on the counter-stop means to the plant.
• a certain gap width can be provided in order to allow a certain mobility of the free end of the drum core, without the stop means or the stop ring comes to rest on the counter stop means. This may be necessary, for example, if only because of the manufacturing tolerances, if, for example, the stop ring is not formed exactly circular or is not aligned exactly coaxial with the axis of rotation of the drum core. Slight eccentricities of the stop ring relative to the rotatable drum core should be permitted without the stop ring coming into contact with the counter stop means under normal load. - A -
• this can be embodied as a rib projecting in the housing part, which has a re-bearing surface, which is adapted to the radial stop surface of the stop means.
• a stop ring as a stop means formed as a projecting rib stop means may have a circular arc-shaped edge on which the radial stop surface of the stop means comes in overload.
• the rebate surface of the counter-abutment means is formed at a distance to the stop surface of the stop ring extending parallel thereto.
• the counter-stop means is provided on a housing part of the electrical appliance.
• the stop means may also be provided on the support structure of the cable drum itself.
• the support structure is formed with a journal, which penetrates the drum core and at the end facing away from the support structure of the drum core emerges again and there is formed in the amount of the stop means or the stop ring, the support structure as a counter-stop means.
• this is not a two-sided storage of the drum core, since in the normal operating condition at this end a free
• Support structure is provided. Only in the event of overload would the drum core briefly be supported at this end of the support structure for a short time without forming a bearing point.
• Figure 1 is a perspective view of a cable drum according to the invention, which is mounted in a housing of a vacuum cleaner;
• Figure 2 shows the mounted in the housing of the vacuum cleaner cable drum of Figure 1 in cross section.
• a vacuum cleaner has a lower housing part 1, in which a cable drum 2 is inserted.
• a holder 3 is formed in which a support structure 4 of the cable drum 2 is inserted.
• a drum core 5 is rotatably mounted on the support structure 4.
• the drum core 5 has a first bearing, the support structure 4 facing the rear drum flange 6.
• a front drum flange 7 is provided at an end of the drum core 5 opposite the rear drum flange 6.
• the front drum flange 7 protrudes freely cantilevered into the lower housing part 3 inside.
• On an outer end face 8 of the front drum flange 7, a stop ring 9 is provided.
• the stop ring 9 has a smaller diameter than the front drum flange 7.
• the stop ring 9 is aligned coaxially with the drum core 5 and to the drum flanges 6 and 7.
• a corresponding to the stop ring 9 counter stop means 10 formed as a rib, which is formed projecting from the housing part 1 upwards.
• Stop ring 9 and formed as a projecting rib counter-stop means 10 are shown in Figure 2 clearly.
• the counter stop means 10 is formed as a wall portion of the lower housing part 1.
• the counter-stop means is formed as a flat wall extending in the direction of the cable drum 2.
• the upper edge of the counter-abutment means 10 has a circular-segment-shaped contour, which is adapted to the circular shape of the stop ring 9.
• a gap 1 1 is formed. In the position of cable drum 2 and housing part 1 shown in Figure 2, the cable drum 2 is in a normal operating position, so that a sufficient distance from the stop ring 9 and counter-stop means 10 is formed over the gap 1 1.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)
• Electric Cable Arrangement Between Relatively Moving Parts (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35057074

Family Applications (1)

Country Status (6)

Families Citing this family (3)

Citations (7)

Family Cites Families (4)

• 2004
  • 2004-08-24 DE DE102004040984A patent/DE102004040984A1/de not_active Withdrawn
• 2005
  • 2005-08-03 EP EP05774081A patent/EP1784109B1/de not_active Not-in-force
  • 2005-08-03 DE DE502005009873T patent/DE502005009873D1/de active Active
  • 2005-08-03 WO PCT/EP2005/053813 patent/WO2006021490A1/de active Application Filing
  • 2005-08-03 ES ES05774081T patent/ES2346764T3/es active Active
  • 2005-08-03 AT AT05774081T patent/ATE472965T1/de not_active IP Right Cessation
  • 2005-08-03 CN CN200580028665A patent/CN100594836C/zh not_active Expired - Fee Related

Patent Citations (7)

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