Driving device for electric lumbar system

A driving device and lumbar support technology, applied in the direction of the back cushion, etc., can solve the problems of short service life, large outer diameter, insufficient rigidity, etc., and achieve the effect of long service life, good stability and improved rigidity
CN102700446AInactive Publication Date: 2012-10-03东莞市凌锐汽车零部件有限公司 +1
5 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
东莞市凌锐汽车零部件有限公司
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of a reeling-unreeling device and particularly relates to a driving device for an electric lumbar system. The driving device comprises a box body, an upper cover, a worm, a worm gear, a wire wheel and an eccentric wheel, wherein the box body and the upper cover are assembled to form a case body; the case body is provided with a wire outlet groove; the box body is internally provided with the worm gear; the worm gear is matched with the worm; the eccentric wheel doing eccentric movement is axially driven by the worm gear; and the wire wheel is axially driven by the eccentric wheel. A scheme that the eccentric wheel doing eccentric movement is driven by the worm gear and the wire wheel is driven by the eccentric wheel is adopted, the outer diameter of the worm gear can be greatly lessened, the quantity of teeth outside the worm gear is remarkably reduced, the difference between the quantity of teeth of the eccentric wheel and the quantity of teeth of the wire wheel is small, the whole size is small, and the rigidity of the worm gear is improved; and cascade type multi-step transmission is adopted, a high transmission ratio is achieved, the whole stability is good and the service life is long.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of wire take-up and release devices, in particular to an electric lumbar support system driving device. Background technique

[0002] The car seat backrest adjustment system uses the cable to pull the backrest device to produce the effect of waist adjustment, including manual adjustment and electric adjustment. Among them, the working principle of the electric adjustment driver is to drive the worm gear through the high-speed motor At the same time, the worm gear is equipped with one or more planetary gear trains, and the planetary gear train is assembled on the wire wheel, and the wire wheel drives the cable to realize the deceleration between the motor and the cable to adjust the car seat. Backrest device.

[0003] The main disadvantages of the above-mentioned existing electric adjustment driver are that since the motor drives the worm to rotate at a relatively high speed, in order to enable the wire whee...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More