CN208896919U

CN208896919U - Engaging tooth driving electric headrest

Info

Publication number: CN208896919U
Application number: CN201821708783.9U
Authority: CN
Inventors: 刘倩
Original assignee: Chongqing Duarte Automobile Technology Co Ltd
Current assignee: Chongqing Alte Automobile Research Institute Co.,Ltd.
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2019-05-24
Anticipated expiration: 2028-10-22

Abstract

The utility model discloses a kind of engaging tooth driving electric headrests, including head rest body and two pillow bars, the pillow bar is slidably arranged on seat back-rest framework, the seat back-rest framework is equipped with bracket, electric lifting mechanism is provided on the bracket, the electric lifting mechanism includes motor, first rotating shaft, the second shaft, first pulley, the second belt wheel, transmission belt, first gear, second gear, the first rack gear and the second rack gear.Engaging tooth driving electric headrest provided by the utility model, the lifting of head rest body is realized by electric lifting mechanism, has the advantages that easy to use and cost is relatively low.

Description

Engaging tooth driving electric headrest

Technical field

The utility model belongs to automobile parts, and in particular to a kind of engaging tooth driving electric headrest.

Background technique

In order to allow car seat headrest to have the function of that up and down adjustment, the prior art use two ways: 1) using manual It adjusts；2) electric screw type lifter is used.Wherein, mode 1) using cumbersome, occupant needs first by car seat headrest tune A suitable position seemingly is made, then takes impression for a trial.Multiple movement repeatedly is needed if improper.Mode 2) helical structure needs Part it is more, higher cost.

Utility model content

In view of this, the utility model aim is to provide a kind of engaging tooth driving electric headrest, keep it convenient to use, at This is lower.

To achieve the goals above, the utility model is realized by the following technical solutions: a kind of engaging tooth driven type Electric headrest, including head rest body and two pillow bars, the pillow bar are slidably arranged on seat back-rest framework, the backrest Skeleton is equipped with bracket, is provided with electric lifting mechanism on the bracket, the electric lifting mechanism includes motor, first turn Axis, the second shaft, first pulley, the second belt wheel, transmission belt, first gear, second gear, the first rack gear and the second rack gear, institute State motor installation on the bracket, the first rotating shaft and the output shaft of the motor are coaxially connected, the first rotating shaft with Second shaft is connect with the holder pivots, and the first pulley and first tooth are arranged in second shaft It takes turns, is arranged with second belt wheel and the second gear in second shaft, the transmission belt is tightly placed in the first band Outside wheel and second belt wheel, first rack gear is arranged on a pillow bar and engages with the first gear, described Second rack gear is arranged on another pillow bar and engages with the second gear.

Further, set that there are two the first directive wheel for being oriented to a pillow bar and two on the bracket The second directive wheel for being oriented to another pillow bar, first directive wheel and first rack gear are located at described The two sides of a piece pillow bar, second directive wheel and second rack gear are located at the two sides of another pillow bar.

Further, the transmission belt is synchronous belt.

The utility model has the beneficial effects that engaging tooth driving electric headrest provided by the utility model, passes through electronic liter Descending mechanism realizes the lifting of head rest body, has the advantages that easy to use and cost is relatively low.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of electric lifting mechanism.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

In this application unless specifically defined or limited otherwise, term " connection ", " fixation " shall be understood in a broad sense, example Such as, it may be a fixed connection, may be a detachable connection, or is integral；It can be mechanical connection, be also possible to be electrically connected； It can be directly connected, the connection inside two elements or two elements can also be can be indirectly connected through an intermediary Interaction relationship.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be Concrete meaning in utility model.

As shown in Figs. 1-2, the utility model provides a kind of engaging tooth driving electric headrest, including head rest body 10 and two Root rests the head on bar 20.Two pillow bars 20 are parallel to each other, and the upper end of pillow bar 20 is fixedly connected with head rest body 10, and lower end passes through backrest Skeleton 50, and be slidably connected with seat back-rest framework 50.Seat back-rest framework 50 is equipped with bracket, is provided with electronic liter on bracket Descending mechanism 30, electric lifting mechanism 30 include motor 301, first rotating shaft 302, the second shaft 304, first pulley 303, the second band Wheel 305, transmission belt 306, first gear 307, second gear 309, the first rack gear 308 and the second rack gear 310.Motor 301 is installed On bracket, first rotating shaft 302 and the output shaft of motor 301 are coaxially connected, first rotating shaft 302 and the second shaft 304 and bracket It is rotatablely connected, is arranged with first pulley 303 and first gear 307 in the second shaft 304, is arranged with second in the second shaft 304 Belt wheel 305 and second gear 309, transmission belt 306 are tightly placed in outside first pulley 303 and the second belt wheel 305, and the first rack gear 308 is set It sets on a pillow bar 20 and is engaged with first gear 307, the second rack gear 310 is arranged on another pillow bar 20 and with second Gear 309 engages.

When work, motor 301 drives first rotating shaft 302 to rotate, first pulley 303 and the first tooth in first rotating shaft 302 Wheel 307 is rotated with the rotation of first rotating shaft 302, and first pulley 303 drives 305 turns of the second belt wheel further through transmission belt 306 Dynamic, the second belt wheel 305 drives the rotation of the second shaft 304, and the second shaft 304 then drives second gear 309 to rotate, thus the first tooth It takes turns 307 and second gear 309 respectively drives the first rack gear 308 and the second rack gear 310 is moved along the same direction, and then drive pillow Bar 20 rises or falls, and then realizes the lifting of headrest.

Since the electric lifting mechanism 30 of the utility model is relative to electric screw type lifter, components are less, therefore Cost is relatively low, and the lifting of head rest body 10 is realized by electronic mode, it is made to get up easily.

As a further improvement of the foregoing solution, for being oriented to a pillow bar 20 there are two setting on the bracket The first directive wheel 40 and two for the second directive wheels 60 for being oriented to another pillow bar 20, first directive wheel 40 The two sides of a pillow bar 20, second directive wheel 60 and second rack gear are located at first rack gear 308 310 are located at the two sides of another pillow bar 20.Support and guiding are formed to pillow bar 20 by directive wheel, to rest the head on bar 20 lower end stress equalization, pillow bar 20 slide also more smooth on seat back-rest framework 50, and there will not be in sliding process different It rings and exists.

As a further improvement of the foregoing solution, transmission belt 306 is synchronous belt, correspondingly, first pulley 303 and the second band The tooth being meshed with synchronous belt is designed on wheel 305.Toothed belt transmission is accurate, steady, work when it is fricton-tight.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims

1. a kind of engaging tooth driving electric headrest, including head rest body and two pillow bars, it is characterised in that: the pillow bar sliding It is arranged on seat back-rest framework, the seat back-rest framework is equipped with bracket, it is provided with electric lifting mechanism on the bracket, The electric lifting mechanism include motor, first rotating shaft, the second shaft, first pulley, the second belt wheel, transmission belt, first gear, Second gear, the first rack gear and the second rack gear, the motor are installed on the bracket, the first rotating shaft and the motor Output shaft is coaxially connected, and the first rotating shaft and second shaft are connect with the holder pivots, covers in second shaft Equipped with the first pulley and the first gear, second belt wheel and second tooth are arranged in second shaft Wheel, the transmission belt are tightly placed in outside the first pulley and second belt wheel, and first rack gear is arranged in a pillow Engaged on bar and with the first gear, second rack gear be arranged on another pillow bar and with the second gear Engagement.

2. engaging tooth driving electric headrest according to claim 1, it is characterised in that: there are two setting on the bracket The first directive wheel and two the second directive wheels for being oriented to another pillow bar for being oriented to a pillow bar, First directive wheel and first rack gear are located at the two sides of a pillow bar, second directive wheel and described Two rack gears are located at the two sides of another pillow bar.

3. engaging tooth driving electric headrest according to claim 1, it is characterised in that: the transmission belt is synchronous belt.