CN103147648A - Electric window glass lifter - Google Patents

Abstract

The invention discloses an electric window glass lifter which comprises a master arm, an auxiliary arm, a fixed guide rail, a movable guide rail, an arc toothed plate, a spline engaged with the arc toothed plate, and a bottom plate, wherein the arc toothed plate comprises a fixing part fixed with the master arm, and a rack part arranged on the fixing part in a sliding manner. According to the electric window glass lifter, when glass drops to a lower limit position, if a motor outputs power continuously, the spline drives the rack part to slide on the fixing part (that is the master arm does not rotate continuously), so that motor rotation cannot be locked, and damages to the motor and the toothed plate are reduced.

Description

Electric glass lifter

Technical field

The present invention relates to the lifting gear on vehicle glass.

Background technology

Automobile glass lifter refers to by motor or manual drives, and by transmission mechanism, automobile window glass risen or descends along the glass gathering sill, and can rest on request the device of optional position.

General arm-type riser structure such as Fig. 1 of intersecting, mainly to be driven by direct current generator, by motor internal gear, outside driving toothed plate 2 and by master arm 3, decide the motion of the four-bar mechanism that guiderail 5, auxiliary 6 form, make glass for vehicle window increase or drop to a kind of device that needs the position.Its structure mainly is comprised of metallic stamping pieces, and its cardinal principle uses moving two the stamping parts master arms that intersect of gear output shaft electric machine driving gear strip and auxiliary to realize moving up and down (operating principle that is similar to the scissors crossing arm).In use, the motor 1 of glass-frame riser is fixed on support, and support is fixed on an interior panel beating, decidesguide rail 5 and is horizontally fixed on a panel beating, and glass is fixed on the moving rail assembly 7 of lifter by two screws.By the rotation of motor, drive and rotate tooth plate 2 rotations, make auxiliary 6 do forward around pivot pin 4, the reverse rotation certain angle; Simultaneously master arm 3 is take axis as run-on point, and pulley assembly 8 is being decidedguide rail 5 and long leading made back and forth movement in kneeling assembly 7, and the long guideway assembly is moved up and down, and drives glass and moves up and down along the gathering sill of front and back end and realize the glass lifting function.

This structure, when glass reached the lower limit position, this moment was due to reaction time of people etc. problem, and operating personnel are release button at once not, thereby makes motor rotation blockage (be that motor continues power output, but because the motor shaft that is stuck does not rotate).Motor rotation blockage has very large injury to motor and tooth plate etc.

Summary of the invention

For the deficiencies in the prior art, the invention provides electric glass lifter, efficiently solve the problems referred to above.

the present invention is achieved through the following technical solutions: electric glass lifter, comprise master arm, auxiliary, decide guide rail, moving guide rail, arc tooth plate, spline and base plate with the arc tooth plate engagement, described master arm is rotatably connected on described base plate, and described master arm one end is fixed with arc tooth plate, described arc tooth plate and described spline engagement, the described master arm other end is slidably arranged in moving guide rail by slide block, described auxiliary and described master arm are rotationally connected and an end of described auxiliary is slidably arranged in by slide block and decides guide rail, the other end of described auxiliary is slidably arranged in described moving guide rail by slide block, described arc tooth plate comprises the fixed part and the tooth-strip part that be slidably arranged in described fixed part on fixing with master arm, on described tooth-strip part, through hole is set, be provided with the chute that is communicated with described through hole on fixed part, one push rod passes described through hole and enters described chute, an end at described push rod arranges the first inclined-plane, also comprise a block, described block slides and is arranged in described fixed part, described block lower end and a spring top lean on, on the second inclined-plane that the setting of described block sidewall coordinates with described the first inclined-plane, be provided with draw-in groove on the tooth-strip part sidewall, described block is arranged in draw-in groove by fixed part.

The present invention has following beneficial effect: when glass reached the lower limit position, tooth bar broke away from tooth plate, and spline band carry-over bar slides on tooth plate, therefore can not cause motor in the problem of lower limit position stall, had reduced the damage of motor and tooth plate.

Description of drawings

Fig. 1 is structural representation of the present invention.

Fig. 2 is the cooperation schematic diagram of arc tooth plate of the present invention and spline.

Fig. 3 is the partial enlarged drawing at A place in Fig. 2 of the present invention.

Fig. 4 is along the cross-sectional schematic of A-A direction in Fig. 3.

The specific embodiment

below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail: referring to Fig. 1 to Fig. 4, electric glass lifter, comprise master arm 1, auxiliary 2, decide guide rail 3, moving guide rail 4, arc tooth plate 10,spline 5 and base plate 7 with arc tooth plate 10 engagements, described master arm 1 is rotatably connected on described base plate 7, and described master arm 1 one ends are fixed with arc tooth plate 10, described arc tooth plate 10 and describedspline 5 engagements, the described master arm other end is slidably arranged in moving guide rail 4 by slide block, described auxiliary 2 is rotationally connected with described master arm 1 and an end of described auxiliary 2 is slidably arranged in by slide block and decides guide rail 3, the other end of described auxiliary 2 is slidably arranged in the described guide rail 4 of deciding by slide block.

Described arc tooth plate 10 comprises thefixed part 20 and the tooth-strip part 21 that be slidably arranged in described fixed part on fixing with master arm 1, on described tooth-strip part 21, throughhole 210 is set, be provided with thechute 200 that is communicated with described throughhole 210 on fixedpart 20, onepush rod 100 passes described throughhole 210 and enters describedchute 200, an end at describedpush rod 100 arranges the first inclined-plane 100a

Also comprise ablock 101, describedblock 101 slides and is arranged in described fixedpart 20, be thatblock 101 can move at the interior above-below direction of described fixedpart 20, describedblock 101 lower ends and aspring 201 lean, the the second inclined-plane 101a that coordinates with described the first inclined-plane 100a in describedblock 101 sidewall settings, be provided with draw-ingroove 103 on tooth-strip part 21 sidewalls, describedblock 101 is arranged in draw-ingroove 103 byfixed part 20.

Whenspline 5 drive arc tooth plates up rotate (when also glass is descending), come downwards to the lower limit position, tooth top onspline 5 is bypush rod 100 at this moment, make the first inclined-plane 100a ofpush rod 100 1 ends lean the second inclined-plane 101a ofblock 101 1 sides, makeblock 101 descending, makespring 201 compressions,block 101 breaks away from draw-ingrooves 103 at this moment, if this moment, motor continued power output, spline drives tooth-strip part 21 slide (being that master arm is not rotated further) on fixedpart 20, therefore motor can stall, has reduced the damage of motor and tooth plate.When glass was up,spline 5pinion rack sections 21 made the draw-in groove of tooth-strip part 21 againblock block 101, therefore do not affect the elevating function of lifter.

Claims (1)

1. electric glass lifter, comprise master arm (1), auxiliary (2), decide guide rail (3), moving guide rail (4), arc tooth plate (10), spline (5) and base plate (7) with arc tooth plate (10) engagement, described master arm (1) is rotatably connected on described base plate (7), and described master arm (1) one end is fixed with arc tooth plate (10), described arc tooth plate (10) and described spline (5) engagement, described master arm (1) other end is slidably arranged in described moving guide rail (4) by slide block, described auxiliary (2) and described master arm (1) are rotationally connected and an end of described auxiliary (2) is slidably arranged in by slide block and describedly decides in guide rail (3), the other end of described auxiliary (2) is slidably arranged in described moving guide rail (4) by slide block, it is characterized in that: described arc tooth plate (10) comprises with the fixing fixed part (20) of master arm (1) and is slidably arranged in tooth-strip part (21) on described fixed part (20), through hole (210) is set on described tooth-strip part (21), be provided with the chute (200) that is communicated with described through hole (210) on fixed part (20), one push rod (100) passes described through hole (210) and enters described chute (200), an end at described push rod (100) arranges the first inclined-plane (100a), also comprise a block (101), described block (101) slides and is arranged in described fixed part (20), described block (101) lower end and a spring (201) lean, on the second inclined-plane (101a) that described block (101) sidewall setting coordinates with described the first inclined-plane (100a), be provided with draw-in groove (103) on tooth-strip part (21) sidewall, described block (101) is arranged in draw-in groove (103) by fixed part (20).

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