CN207955566U - A kind of board unit of air bag balance spring - Google Patents

Abstract

A kind of air bag of the utility model, more particularly to a kind of board unit of air bag balance spring.There is the board unit substrate, the substrate there is a pair to be pivotally mounted on holder, each in the mounting bracket fits into from substrate hinge support outstanding and can be relative to linear movement in the hinge support;The mounting bracket is connected by pin with slot, and each end of mounting bracket is connected in installation leg, and the movement of module housing and air bag coil block component is limited to the displacement for the rotation axis for being parallel to steering wheel.The utility model is more convenient, improves efficiency, that is, tears open and change.

Description

A kind of board unit of air bag balance spring

Technical field

A kind of air bag of the utility model, more particularly to a kind of board unit of air bag balance spring.

Background technology

Air bag balance spring also known as air bag coil, it is known that the side for air bag coil block to be mounted on to motor vehicles Component into disk.Air bag coil block usually passes through the pin in the appropriate shell being connect with steering wheel frame, spiral shell Nail, nut, interlockable teeth or similar accessories are fixed.If air bag coil block is used as driving the auxiliary of horn for vehicle to fill It sets, then air bag coil block needs move between resting position and operating position, at the operating position, air bag Coil block cooperates to activate loudspeaker with the suitable device being arranged in shell.In this case, vehicle driver is logical It crosses and air bag coil block is pressed into operating position to operate loudspeaker directly or indirectly through lid.Such air bag loft circle Component is often supported by one or more elastic components, and air bag module is returned to resting position after operation.

The component of the prior art has several drawbacks in that.For example, when pressing air bag coil block is to activate air bag line When coil assembly, due to the arrangement of the elastic component at the periphery of air bag coil block, generally laterally tilt.Driver is logical Often air bag coil block is pushed directly or by lid in the region of air bag coil block periphery.The power is applied in To the periphery of air bag coil block, lead to that air bag coil block is made to surround the torque that elastic component pivots.In this way, air bag line Regional dip of the coil assembly towards air bag coil block periphery.For this purpose, in order to allow the lateral fortune of air bag coil block It is dynamic, it needs to provide relatively large gap between steering wheel or air bag module shell and air bag coil block itself, leads to this Inaesthetic matching between a little components.

Since the region on air bag coil block periphery is by installing multiple buttons or pressing area on the steering wheel And applied, so traditional component needs multiple electrical contact modules around air bag to allow driver to select The satisfactory loudspeaker of buttons/areas activate.Alternatively, traditional components provide loudspeaker ring, which is to surround air bag The circular electric contact point on coil block periphery.These designs cannot all provide identical loudspeaker activation between different pressing areas Load is this means that the loudspeaker performance that the different zones experience that driver presses on the steering wheel during loudspeaker activate does not wait, example Such as different duration and/or intensity.The pivot of air bag coil block causes the air bag coil block side of itself To movement, and air bag coil block stroke is thus also caused to amplify, during the assembling of steering wheel, air bag coil The amplification of component stroke must be balanced by increasing the gap between air bag coil block and steering wheel.

Invention content

To solve the above-mentioned problems, the utility model provides a kind of board unit of air bag balance spring.

The technical solution that the utility model is taken to achieve the above object is：

There is substrate, the substrate to be pivotally mounted on a pair for a kind of board unit of air bag balance spring, the board unit Holder, each in the mounting bracket fit into from substrate hinge support outstanding and can be relative to institutes State linear movement in hinge support;The mounting bracket is connected by pin with slot, and each end connection of mounting bracket Onto installation leg, the movement of module housing and air bag coil block component is limited to the position for the rotation axis for being parallel to steering wheel It moves.

As a further improvement, the board unit is attached to the center hub of steering wheel.

As a further improvement, the mounting bracket can linear movement relative to the hinge support.

As a further improvement, the mounting bracket respectively has the end with protrusion, when each mounting bracket It linearly moves, and pivotally when being rotated on the end of the mounting bracket, what the hinge support had Curved surface.

As a further improvement, the substrate further includes the removal bracket with opening, wherein tool can pass through described Opening is sufficient to clear projecting teeth and inclined teeth to push the end of a mounting bracket to cause the displacement of two mounting brackets, To allow release of the module housing from board unit.

The utility model is more convenient, improves efficiency, that is, tears open and change.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model steering wheel.

Fig. 2 is the structural schematic diagram of the utility model board unit.

Fig. 3 is the structural schematic diagram of the utility model board unit assembling.

Fig. 4 is the structural schematic diagram of the utility model air bag balance spring.

Fig. 5 is the structural schematic diagram of the utility model module housing.

Specific implementation mode

Specific embodiment of the present utility model is made a detailed explanation below in conjunction with the accompanying drawings.

As shown in Figs. 1-5, a kind of air bag balance spring, the balance spring include connecting for being connected to steering wheel, the steering wheel 200 It is connected to the outer rim 202 of multiple spokes 203, the spoke is directed inwardly toward center hub 201, and center hub 201 has board unit 300, The board unit 300 is used as threaded fastener by being attached to center hub for the device of attachment, and bullet is arranged at multiple positions Spring presss from both sides or pin 305.

The air bag coil block includes airbag module case 100, board unit 300 and elastic component 600, institute It states and air bag cover 121 is installed in airbag module case 100 and is placed in air bag 122 therein, the safety Airbag housing 100 has two pairs of mounting leg 140,142;There is the board unit 300 substrate 309, the substrate 309 to have one To being pivotally mounted on holder 101,102, each in the mounting bracket 101,102 fits into outstanding from the substrate And it can be relative to linear movement in the hinge support 301,302 in hinge support 301,302;The elastic component is used In making air bag coil block return to resting position when activating loudspeaker, the elastic component is inserted in one of mounting bracket Between 101,102 and substrate 309;The mounting bracket 101,102 is connected by pin 105 and slot 111, and mounting bracket 101, 102 each end is connected in installation leg 140,142, and the movement of module housing 100 and air bag coil block component is limited To the displacement for the rotation axis for being parallel to steering wheel 200.

The board unit 300 is attached to the center hub 201 of steering wheel 200.

The mounting bracket 101,102 can linear movement relative to the hinge support 301,302.

The installation leg 140,142 further includes projecting teeth 150, extend outwardly in an installation leg 140,142 and It extends internally in assembling relative to the rotation axis of steering wheel 200 in installation leg 140,142 diametrically.

Each installation leg 140,142 further includes the inclined teeth 145 of the wall of the neighbouring installation leg 140,142, is similarly existed Rotation axis when assembling relative to the steering wheel 200 protrudes outward, with inclined teeth 145 outstanding in an installation leg between It separates and inside in installation leg 140,142 diametrically.

The mounting bracket 101,102 respectively has the end with protrusion, when each mounting bracket 101,102 is in It is moved linearly by, and pivotally when being rotated on the end of the mounting bracket, the inclined teeth 145 makes the protrusion Part push enough distances with allow the projecting teeth 150 pass through the mounting bracket 101,102 end under, the hinge The curved surface 303 that chain support element 301,302 has.

Wherein continuing to move downward allows the inclined teeth 145 to pass through in the jag beneath portions, to allow It states elastic component 600 and the mounting bracket 101,102 is moved to return position, thus by mounting bracket 101, each of 102 Jag part is locked in the slot between prominent inclined teeth 145 and protrusion 160.

The substrate 309 further includes the removal bracket 320 with opening or slit 321, and wherein tool can pass through described Opening 321 is sufficient to clear projecting teeth to push the end of a mounting bracket 101,102 to cause the displacement of two mounting brackets 150 and inclined teeth 145, to allow module housing 100 from the release of board unit 300.

The elastic component 600 is helical spring.

Claims (5)

1. a kind of board unit of air bag balance spring, the board unit（300）With substrate (309), the substrate (309) has one To being pivotally mounted on holder (101,102), each in the mounting bracket (101,102) fits into prominent from the substrate The hinge support gone out（301,302）It above and can be relative to the hinge support（301,302）Upper linear movement;Its feature It is：The mounting bracket（101,102）Pass through pin（105）And slot（111）Connection, and mounting bracket（101,102）It is every A end is connected to installation leg（140,142）On, module housing（100）Movement with air bag coil block component is limited to flat Row is in steering wheel（200）Rotation axis displacement.

2. a kind of board unit of air bag balance spring according to claim 1, it is characterised in that：The board unit（300） It is attached to steering wheel（200）Center hub（201）.

3. a kind of board unit of air bag balance spring according to claim 1, it is characterised in that：The mounting bracket（101, 102）Relative to the hinge support（301,302）It can linear movement.

4. a kind of board unit of air bag balance spring according to claim 3, it is characterised in that：The mounting bracket（101, 102）Respectively there is the end with protrusion, when each mounting bracket（101,102）It linearly moves, and pivotally When being rotated on the end of the mounting bracket, the hinge support（301,302）The curved surface having（303）.

5. a kind of board unit of air bag balance spring according to claim 4, it is characterised in that：The substrate（309）Also wrap The removal bracket with opening is included, wherein tool can pass through the opening to push a mounting bracket（101,102）End Portion causes the displacement of two mounting brackets, is sufficient to clear projecting teeth（150）And inclined teeth（145）, to allow module housing （100）From board unit（300）Release.