CN208439117U - The self-locking device of the continuous angle adjustor of automotive seat - Google Patents

Abstract

The utility model relates to a kind of self-locking devices of the continuous angle adjustor of automotive seat, it is a component in the continuous angle adjustor of automotive seat.The utility model is provided with a friction spring, it is mounted in the space that the outer tooth plate, axle sleeve, wedge block one, wedge block two, actuator are defined, and the friction spring is held tightly on outer tooth plate cylindrical inner wall；Equidirectional two stabilizer blade is connected on the friction spring, friction spring stabilizer blade one is located in the space that one end face of wedge block and actuator end face one are defined, in the space that friction spring stabilizer blade two is located at wedge block biend and actuator end face two is defined.The design of the utility model structure is simpler, reasonable, efficiently solves the problems, such as motor vehicle seat back angle creep, drives human body more comfortable, using also more safe and reliable.

Description

The self-locking device of the continuous angle adjustor of automotive seat

Technical field

The utility model relates to a kind of self-locking devices of the continuous angle adjustor of automotive seat, it is the continuous angle adjustor of automotive seat In a component, be primarily adapted for use in handwheel driving motor vehicle seat back.

Background technique

In the prior art, the continuous angle adjustor of the motor vehicle seat back released in the market mainly has motor driven and handwheel to drive Two ways.

Motor-driven backrest ensures angle adjustor connecting rod since angle adjustor motor itself can provide biggish blocked force And the gap eliminator inside angle adjustor core members will not rotate, therefore backrest will not be sent out when by fatigue load The male character types in Chinese operas, usu. referring tov the bearded character degree creep.

The backrest of handwheel driving, handwheel are directly connected with angle adjustor connecting rod, and human body is constantly right in vehicle travel process Backrest applies certain fatigue load backward, external to block without effective due to itself not having self-locking function inside angle adjustor, The backrest angle that accumulates over a long period can be rotated gradually backward in creep, change the original seating posture of driver and passenger to influence to relax Adaptive.For assistant driver seat in the case where infrequently sitting people, vehicle jolts backrest in self gravity, seat back angle Also can gradually creep backward cause car owner to complain until backrest falls down to rear extreme position.

In view of the above-mentioned problems, currently on the market prior art mainly have increase outside angle adjustor a self-locking device reality Existing backrest is self-locking, and there are also one is increase by a spring leaf inside angle adjustor to realize that the hardness of clutch blocks.

Certainly, there are also the continuous angle adjustors of some other automotive seat, wherein spring used is all to play tensioner to eliminate angle modulation Device gap effect, they not can solve equally seat back angle can gradually creep backward the problem of.

Utility model content

Technical problem to be solved in the utility model is the above-mentioned deficiency in the presence of overcoming the prior art, and provides one Kind structure designs the self-locking device of the continuous angle adjustor of more reasonable automotive seat, after it cooperates with the continuous angle adjustor of automotive seat, It can simply and effectively solve the problems, such as backrest angle creep.

The utility model solve above-mentioned technical problem used by technical solution be: the continuous angle adjustor of the automotive seat from Locking device includes outer tooth plate, axle sleeve, wedge block one, wedge block two and actuator, and outer tooth plate uses cylindrical structure, wedge block one with The abutting end of wedge block two is greater than their other end, it is characterised in that: is additionally provided with a friction spring, it is mounted on described In the space that outer tooth plate, axle sleeve, wedge block one, wedge block two, actuator are defined, and the friction spring is held tightly in outer tooth plate cylinder On shape inner wall；Be connected with equidirectional two stabilizer blade on the friction spring, friction spring stabilizer blade one be located at one end face of wedge block with In the space that actuator end face one is defined, friction spring stabilizer blade two is located at wedge block biend and is defined with actuator end face two Space in.

Friction spring described in the utility model is contacted with end face of shaft bush with actuator end face three respectively.

The outer diameter of friction spring described in the utility model is greater than the internal diameter of outer tooth plate cylindrical inner wall.

Friction spring described in the utility model uses helical spring structure, and circle number is greater than 1 but less than 4.

The utility model compared with prior art, has the following advantages that and effect: structure design is simpler, reasonable, has It solves the problems, such as motor vehicle seat back angle creep to effect, drives human body more comfortable, using also more safe and reliable；It is logical It crosses inside angle adjustor and increases by a friction spring to solve the problems, such as backrest angle creep, which is mounted in outer tooth plate In portion's tubular construction, has the characteristics that positive adjusting force compared with small, reverse blocking power is big；When applying fatigue load to backrest, rub It wipes frictional force provided by spring and balances radial component caused by continuous angle adjustor, core members clearance eliminating mechanism is avoided to send out Raw rotation, so that angle rotation will not be occurred by guaranteeing backrest backward.

Detailed description of the invention

Fig. 1 is that the overall structure of the utility model illustrates expanded view.

Fig. 2 is the structural schematic diagram of the utility model clearance eliminating mechanism.

Fig. 3 is the structural representation cross-sectional view of actuator in the utility model.

Fig. 4 is the motion principle of friction spring and the position simplified schematic diagram with wedge block in the utility model.

Fig. 5 is that the utility model is mounted on the structural representation expanded view in the continuous angle adjustor of automotive seat.

Fig. 6 is the structural schematic diagram after Fig. 5 combination.

Fig. 7 is the schematic cross-sectional view of Fig. 6.

In figure: 1 eccentric wheel, 2 wedge blocks one, 3 wedge blocks two, 4 springs, 5 outer tooth plates, 6 axle sleeves, 7 friction springs, 8 drivings Part, 9 packet circles, 10 gaskets, 11 internal gears, 12 washers, 13 Spring Cards, one end face of 2a wedge block, 3a wedge block biend, 5a external tooth Plate cylindrical inner wall, the outer tooth plate of 5b lean on increment cylindrical inner wall, the non-increment cylindrical inner wall of the outer tooth plate of 5c, 6a end face of shaft bush, 7a friction bullet Spring stabilizer blade one, 7b friction spring stabilizer blade two, 8a actuator end face one, 8b actuator end face two, 8c actuator end face three.

Specific embodiment

Referring to Fig. 1-Fig. 4, and Fig. 5-Fig. 7 is combined, the present embodiment mainly includes eccentric wheel 1, wedge block 1, wedge block 23, spring 4, outer tooth plate 5, axle sleeve 6, friction spring 7, driving 8；Wherein: wedge block 1, wedge block 23, eccentric wheel 1, spring 4 composition clearance eliminating mechanisms I；The abutting end of wedge block 1 and wedge block 23 is greater than their other end.

In the present embodiment, outer tooth plate 5 uses cylindrical structure, i.e., the outer ring of outer tooth plate 5 is directly designed to tooth form, and inner circle is drawn At cylindrical structure；Clearance eliminating mechanism I is installed in above-mentioned axle sleeve 6, which eliminates gap using upper layer and lower layer, double cam, When driving one of wedge block, friction is generated between the wedge block and eccentric wheel 1, rotates eccentric wheel 1.Due to these knots Structure is identical as CN201710690970.2 patent application or equivalent, herein just not repeated description.

In the present embodiment, friction spring 7 is mounted on outer tooth plate 5, axle sleeve 6, wedge block 1, wedge block 23, actuator 8 In the space defined.It is specific as follows:

Angle adjustor in the radial direction, friction spring 7 by precompressed assemble, hold tightly on outer tooth plate cylindrical inner wall 5a.

On angle adjustor axial direction, actuator 8 avoids 7 axial float of friction spring by axial compression.Friction spring 7 contact with end face of shaft bush 6a, and friction spring 7 is contacted with actuator end face 8c.

In the present embodiment, equidirectional two stabilizer blade is connected on friction spring 7, one 7a of friction spring stabilizer blade is located at wedge block In the space that one end face 2a and one 7a of actuator end face are defined；Two 7b of friction spring stabilizer blade is located at wedge block biend 3a and drives In the space that two 7b of moving part end face is defined.

Friction spring 7 uses helical spring structure, and circle number is greater than 1 less than 4；Under the outer diameter free state of friction spring 7 Greater than the internal diameter of outer tooth plate cylindrical inner wall 5a.

The motion principle of the utility model is as follows:

When rotating clockwise motor vehicle seat back handwheel adjusting angle of backrest, actuator 8 is rotated clockwise, actuator end face One 8a pushes one 7a of friction spring stabilizer blade rotation, and one 7a of friction spring stabilizer blade contacts promotion with wedge block 1 therewith, and it is revolved Turn, to realize the adjusting of angle adjustor angle.

In pushing one 7a rotation process of friction spring stabilizer blade, the outer diameter of friction spring 7 becomes smaller, and holds tightly in outer tooth plate inner wall The power of 5a also becomes smaller simultaneously, therefore rotation process power drive torque is smaller.

Similarly, it is similarly set up when adjusting handle counterclockwise.

The self-locking method and principle of the utility model are as follows:

When persistently applying clockwise torque to motor vehicle seat back, generated radial component can make gap eliminate machine Structure integrally rotates clockwise, and wedge block biend 3a is contacted with two 7b of friction spring stabilizer blade, and drives friction spring stabilizer blade The edge two 7b rotates clockwise.

During this, the outer diameter of friction spring 7 there are change trend, securely hold tightly in outer tooth plate tubular by friction spring 7 On wall 5a, generated frictional resistance has blocked the rotation of wedge block 1, wedge block 23 or even entire clearance eliminating mechanism I, It is self-locking inside angle adjustor to realize, avoid the creep of motor vehicle seat back angle.

Similarly, when applying torque counterclockwise to motor vehicle seat back, angle adjustor equally can be realized self-locking.

The installation method of friction spring 7 is as follows:

Axle sleeve 6 is a tight fit on outer tooth plate cylindrical inner wall 5a and is located at outer tooth plate at increment cylindrical inner wall 5b, and rubs Spring 7 is then held tightly at the non-increment cylindrical inner wall 5c of outer tooth plate.Specifically, since the outer diameter of friction spring 7 is greater than outer tooth plate cylinder The internal diameter of shape inner wall 5a, therefore must first tighten friction spring 7, it is then installed in outer tooth plate cylindrical inner wall 5a, rubs at this time again Spring 7 is contacted with end face of shaft bush 6a, and is contacted with three 8c of actuator end face.

After installation/in use, referring to fig. 4, the both ends of spring 4 be located at the big end of wedge block 1 and wedge block 23 i.e. they Abutting end, play tensioner, but can loosen after continuing on；So designing a friction spring 7 to prevent the compacted of backrest angle Become, it may be assumed that one 7a of friction spring stabilizer blade and two 7b of friction spring stabilizer blade is located at the small end of wedge block 1 and wedge block 23 i.e. At one end face 2a of wedge block and at wedge block biend 3a, and there is a gap h with the small end of wedge block 1 and wedge block 23.When When persistently applying torque to motor vehicle seat back, one 7a of friction spring stabilizer blade can be contacted with one end face 2a of wedge block, or friction Two 7b of spring stabilizer can be contacted with wedge block biend 3a, thus pass through one 7a of friction spring stabilizer blade, friction spring stabilizer blade two 7b has blocked the rotation of wedge block 1, wedge block 23, effectively prevents the creep of motor vehicle seat back angle.

Referring to Fig. 5-Fig. 7, when specifically used, by the packet circle 9 in the utility model and the continuous angle adjustor of automotive seat, pad Piece 10, internal gear 11, washer 12 and Spring Card 13 combine, and connect firmly internal gear 11 with backrest, and outer tooth plate 5 is sat with seat Pad connects firmly, and the adjusting of pivoted arm progress motor vehicle seat back angle is driven by handwheel.

The title that the utility model above-mentioned parts are taken can be different, all according to structure described in the concept of the patent of the utility model It makes, the equivalent or simple change that feature and principle are done, is included in the protection scope of the utility model patent.

Claims (4)

1. a kind of self-locking device of the continuous angle adjustor of automotive seat, including outer tooth plate, axle sleeve, wedge block one, wedge block two and drive Moving part, outer tooth plate use cylindrical structure, and wedge block one is greater than their other end with the abutting end of wedge block two, and feature exists In:

A friction spring (10) are additionally provided with, it is mounted on the outer tooth plate (2), axle sleeve (3), wedge block one (4), wedge block In the space that two (5), actuator (11) are defined, and the friction spring (10) is held tightly on outer tooth plate cylindrical inner wall (2a)；

Equidirectional two stabilizer blade is connected on the friction spring (10), friction spring stabilizer blade one (10a) is located at wedge block one end In the space that face (4a) and actuator end face one (11a) are defined, friction spring stabilizer blade two (10b) is located at wedge block biend In the space that (5a) and actuator end face two (11b) is defined.

2. the self-locking device of the continuous angle adjustor of automotive seat according to claim 1, it is characterised in that: the friction bullet Spring (10) is contacted with end face of shaft bush (3a) with actuator end face three (11c) respectively.

3. the self-locking device of the continuous angle adjustor of automotive seat according to claim 1 or 2, it is characterised in that: described rubs The outer diameter for wiping spring (10) is greater than the internal diameter of outer tooth plate cylindrical inner wall (2a).

4. the self-locking device of the continuous angle adjustor of automotive seat according to claim 1 or 2, it is characterised in that: described rubs It wipes spring (10) and uses helical spring structure, circle number is greater than 1 less than 4.