CN2303417Y - Switching components for horn - Google Patents
Switching components for horn Download PDFInfo
- Publication number
- CN2303417Y CN2303417Y CN 96248971 CN96248971U CN2303417Y CN 2303417 Y CN2303417 Y CN 2303417Y CN 96248971 CN96248971 CN 96248971 CN 96248971 U CN96248971 U CN 96248971U CN 2303417 Y CN2303417 Y CN 2303417Y
- Authority
- CN
- China
- Prior art keywords
- horn switch
- cover
- protecgulum
- bonnet
- switch assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a horn switch assembly which is used together with a horn switch of a bending sensor, and the horn switch assembly is served as one part of the horn switch and is arranged in a horn switch bag of an airbag assembly. The horn switch of the bending sensor is provided with a variable resistance circuit which can be connected with a horn control circuit and is provided with a plurality of resistance elements separated with each other. A horn switch cap can substantially close the horn switch of the bending sensor and comprises a cap front cover provided with a rear internal surface positioned at the front of the horn switch of the bending sensor. A plurality of longilineal force collecting ribs which are in parallel and separated with each other extend from the rear internal surface, and each resistance element is positioned at the rear of the force collecting ribs. A cap back cover is provided with a front internal surface positioned at the rear of the horn switch of the bending sensor.
Description
The utility model relates to a kind of horn switch assembly, particularly a kind ofly is suitable for inserting the horn switch cover that the horn switch assembly in the driver's side air bag assembly uses with one.
The driver's side air bag assembly that comprises an air bag block piece and air bag module cover normally is arranged in the dish hub of vehicle steering.The dish hub of steering wheel also by chance is the zone that a horn switch assembly is set usually.Therefore, air bag component covers and also must can be used for triggering horn switch.The horn switch assembly generally includes loudspeaker that a horn switch and is connected in air bag component lid and triggers backboard on the face inner surface.Common mat ultrasonic bonding of horn switch and backboard or hot riveting (heat staking) and be connected in described inner surface.
There are a variety of horn switch assemblies to include a film horn switch.All thin film switches generally include two thin slices as thin as a wafer, have conductive coating on the described thin slice and usually separate by thin separator that the pressure that acts on the described switch is slippaged described all conductive surfaces together so that closing of circuit and trigger loudspeaker.Usually, a plurality of collection power devices are arranged on the inner surface of loudspeaker toggle area of air bag component lid so that driver institute applied pressure is more effectively passed to horn switch.
There are some horn switch assemblies then to comprise the bend sensor or the crooked responsive horn switch of the variable resistance circuit of pair of curved sensitivity.When variable resistance circuit is crooked, the variation that the resistance generation of described variable resistance circuit can measure, and described variable resistance circuit can be connected on the horn control circuit, this horn control circuit can react to changing extremely rapidly of resistance, and resistance is changed Fails To Respond comparatively slowly, changing slowly of described resistance can be for example caused by the compact package of the horn switch in variations in temperature or the air bag component.Usually, there are a plurality of collection power devices to be arranged on the inner surface of loudspeaker toggle area of air bag component lid, and have a plurality of supporting members to be arranged on the backboard.All collection power devices and supporting member arrange preferably can be only along an axis or the crooked variable resistance circuit of direction.In addition, all collection power devices and supporting member are the form of elongated rib, are used for the by-local forces what that the driver applies is delivered on the bigger zone of bend sensor.
It is found that utilizing ultrasonic bonding or rivet hot to fetch the horn switch assembly is installed to the technical process that air bag component covers is a kind of more time-consuming assembly technology, it can improve the manufacturing cost of air bag component.In addition, described horn switch is subjected to the damage of hot riveting sometimes, and this just needs to change horn switch and air bag module cover.When change damaged or during defective horn switch, the horn switch assembly that is welded in the air bag component lid then requires to change whole air bag component lid.And during with the hot riveting method, design, material and manufacturing that air bag component is covered all are subjected to certain restriction.
The another kind of method that can replace hot riveting or welding that the horn switch assembly is installed is the horn switch bag to be arranged in the air bag component in the mode of the inner surface of the loudspeaker toggle area that is being tight against the air bag component lid hold and w keeps the horn switch assembly.Shown in the application S/N 08/587,855 that awaits the reply jointly (act on behalf of case number 30932100.173) and described a kind of like this example of horn switch bag.
Therefore, need horn switch assembly in a kind of horn switch bag that can be suitable for being installed in air bag component.Also needing can be for the employing one film horn switch of implementing and the horn switch assembly of a bend sensor horn switch.
Therefore, a purpose of the present utility model is to provide a kind of horn switch assemblies that can satisfy one or more above requirements.In realizing the utility model, the utility model provides a kind of horn switch switch cover, it together uses, is used for inserting one and is adjacent in the horn switch bag of air bag component lid with horn switch as the part of horn switch assembly, thereby make the horn switch assembly not need by hot riveting or be welded in described air bag component to cover.Described horn switch cover comprises that one is suitable for being arranged on the cover protecgulum of horn switch front, and a cover bonnet that is suitable for being arranged on the horn switch back.One hinge portion is connected in first edge of cover protecgulum on first edge of cover bonnet, and has holding device and be used for a cover bonnet and remain on the cover protecgulum, simultaneously horn switch is remained between this front and rear covers.
According to an aspect of the present utility model, a plurality of collection power devices that are separated from each other extend back out from the back inner surface of cover protecgulum, and the horn switch cover is suitable for and one comprises that the horn switch of film horn switch together uses.According to another aspect of the present utility model, a plurality of collection power devices that are separated from each other extend back out from the back inner surface of cover protecgulum, a plurality of supporting members extend out forward from the preceding inner surface of cover bonnet, and the horn switch cover is suitable for together using with a bend sensor horn switch with a plurality of resistive elements that are separated from each other.
Other purpose of the present utility model, feature, advantage and others will become more clear from the detailed description below in conjunction with accompanying drawing.
Fig. 1 is the back front view of the biopsy cavity marker devices of horn switch assembly of the present utility model;
Fig. 2 is the cutaway view along the horn switch assembly of Fig. 1 center line 2-2 intercepting;
Fig. 3 is the back front view of the biopsy cavity marker devices of another horn switch assembly of the present utility model;
Fig. 4 is the cutaway view along the horn switch assembly of Fig. 3 center line 4-4 intercepting;
Fig. 5 is the back front view of the biopsy cavity marker devices of another horn switch assembly of the present utility model;
Fig. 6 is the cutaway view along the horn switch assembly of Fig. 5 center line 6-6 intercepting;
Fig. 7 is the back front view of the biopsy cavity marker devices of a horn switch assembly more of the present utility model;
Fig. 8 is the cutaway view along the horn switch assembly of Fig. 7 center line 8-8 intercepting;
Fig. 9 is the back front view of the biopsy cavity marker devices of another horn switch assembly of the present utility model;
Figure 10 is the cutaway view along the horn switch assembly of Fig. 9 center line 10-10 intercepting.
In each accompanying drawing, every identical label is all represented identical member.
The utility model aims to provide a kind of horn switch cover, and this cover and horn switch together use, be used for inserting one near in the horn switch bag (horn switch pocket) of an air bag component as the part of horn switch assembly.Be important to note that horn switch cover of the present utility model is suitable for using with various dissimilar horn switches, and comprise that other does not deviate from the many variations of the utility model essence and scope.
At first see also Fig. 1 to Fig. 2.Fig. 1 shows an embodiment who uses, constitutes the horn switch cover 12 of the present utility model of horn switch switch module 10 parts with bend sensor or crooked responsive horn switch 14.Described horn switch assembly 10 is used among the driver's side air bag assembly that is installed in the dish hub of vehicle steering.The driver's side air bag assembly is in usually in the known prior art, therefore, no longer is explained in detail because their specific structural features itself does not constitute feature of the present utility model.10 need of horn switch assembly of the present utility model can be installed within the air bag component by inserting in the horn switch bag on the buffer band that is connected in air bag block piece or described air bag component.The horn switch bag that comprises horn switch assembly 10 is tightly between the loudspeaker triggering face of the air bag component lid of a folding air bag block piece and described air bag component.After this, the driver is by pressing on the loudspeaker triggering face of air bag component lid with hand, and described horn switch assembly 10 just can be driven or trigger.
Described bend sensor horn switch 14 comprises that a flexible plate 16 and attaches to the variable resistance circuit 18 on the described flexible plate.The thickness of flexible plate 16 and variable resistance circuit 18 shown in figure 2, with their actual thickness be out-of-proportion, drawing thicker only is for convenience of explanation.Described variable resistance circuit 18 consist essentially of one in prior art known flexible potentiometer.At United States Patent (USP) 5,309, disclose and described flexible potentiometric example in 135.Described variable resistance circuit 18 have a plurality ofly separate each other, by the resistive element 20 that a plurality of conductive strips 22 couple together, described variable resistance circuit is arranged to parallel each other all row 24.Conductive strips 22 are a kind of compliant conductive coatings, and described compliant conductive coating can utilize any suitable method to be coated on the described flexible plate 16, for example, and by electrically conductive ink is coated with thereon with the silk screen process technology.
When resistive element 20 was bent, the resistance of variable resistance circuit 18 changed.Resistive element 20 is a compliant conductive coating normally, and described compliant conductive coating can utilize any suitable method to be applied on the described flexible plate 16, such as by electrically conductive ink is coated with thereon with the silk screen process technology.All resistive elements 20 can be flexible carbon fibers, when with all resistive elements 20 towards a certain direction when crooked, described all flexible carbon fibers are separated from each other.When carbon fiber separated, the resistance of resistive element 20 increased, thereby had changed the resistance of variable resistance circuit 18, and described variable resistance circuit can be connected in a long distance power supply and and be used for triggering on the long distance horn control circuit of long distance loudspeaker.
When the driver is at least threshold value with a size active force by the preceding outer surface that is pressed in the air bag component lid on the time, the just closed circuit between long distance power supply and long distance loudspeaker of long distance horn control circuit.Described threshold effort makes all resistive elements 20 bend and makes the resistance of variable resistance circuit 18 that the variation that can measure take place.A kind of preferable horn control circuit only responds to the quick variation of the resistance of variable resistance circuit 18, and to the slow variation Fails To Respond of resistance.Usually, the bending of the thermal expansion of air bag component or cold contraction, air bag component lid or the close packing and of horn switch assembly 10 are included in folded airbag buffer in the air bag component usually can crooked all resistive elements 20 and change the resistance of variable resistance circuit 18, and the size of its resistance is enough to trigger loudspeaker.But the changes in resistance rate that they cause is extremely slowly.A kind of preferable horn control circuit can prevent this unwanted triggering to loudspeaker, because only covered the active force that is applied and can have and trigger necessary variation of force rate of loudspeaker or resistance change rate by being pressed in air bag component by the driver.Those present technique fields the skilled person should be understood that: can adopt a lot of circuit to finish this function of preferable horn control circuit.Described horn control circuit can comprise a microprocessor, can programme to satisfy auto-maker's various specific requirements to this microprocessor.
Described flexible plate 16 is a kind of electrical insulating materials, and such as a kind of appropriate plastic material, for example thickness is about 0.10 millimeter MYLAR polyester or polyethylene.As shown in Figure 1, flexible plate 16 also comprises the groove 26 between all row 24 of variable resistance circuit 18.These grooves 26 can more easily make all resistive elements 20 that are positioned at every row 24 crooked toward the direction substantially, and perhaps, described flexible plate 16 also can include only all grooves on the relative both sides of the every row 24 that are positioned at variable resistance circuit 18 simply.
Substantially the cover protecgulum 28 that covers described bend sensor horn switch 14 has a back inner surface 48 that is arranged on bend sensor horn switch 14 fronts.Be be parallel to each other, be separated from each other, a plurality of collection power devices that are separated from each other of longilineal collection power rib 50 forms extend back out and preferably in aggregates with it from the back inner surface 48 of cover protecgulum 28.Collection power rib 50 makes each resistive element 20 be positioned at the back of a collection power rib substantially perpendicular to all row 24 of variable resistance circuit 18 and be arranged on the inner surface 48 of back.The maintenance aligning apparatus that comprises two block pieces 52 extends back out from the back inner surface 48 of cover protecgulum 28.First edge 54 of bend sensor horn switch 14 nestles up hinge portion 32, second edge 56 of bend sensor horn switch 14 nestles up two block pieces 52, thereby all resistive elements 20 that can guarantee bend sensor horn switch 14 keep aliging with all collection power ribs 50.Perhaps, described alignment holding device also can adopt other form.
The cover bonnet 30 that also covers bend sensor horn switch 14 substantially has a preceding inner surface 58 that is positioned at bend sensor horn switch 14 back.Be be parallel to each other, be separated from each other, a plurality of supporting members that are separated from each other of longilineal collection power rib 60 forms in the past 58 of inner surfaces extend out forward and be preferably in aggregates with it.All supporting ribs 60 are provided with proper horn switch cover 12 when closing, and can make all supporting ribs be parallel to all collection power ribs substantially and stagger mutually with all collection power ribs.All supporting ribs 60 are also substantially perpendicular to all bend sensor row 24, and each conductive strips 22 is positioned at the front of a supporting rib, and each resistive element 20 is between two adjacent supporting ribs 60.Putting on pressure on the cover protecgulum 28 will make at least one collection power rib 50 go bending to be positioned near the two adjacent supporting rib bars 60 at least one resistive element 20.
All collection power ribs 50 and all supporting ribs 60 add guaranteed bend sensor horn switch 14 together all resistive elements 20 substantially along an axis or a direction bending.In addition, all collection power ribs 50 by-local forces what that will put on the cover protecgulum 28 is distributed on the more than one resistive element 20.The utility model also provides a kind of horn switch assembly 10, this horn switch assembly be self-contained and can insert easily an air bag component the horn switch bag and without hot riveting (heat staked) or be welded in air bag component and cover.Therefore, horn switch assembly 10 can be assemblied on the air bag component easily and can disassemble easily to maintain or to replace.
As shown in Figure 1, bend sensor horn switch 14, cover protecgulum 28 and cover bonnet 30 are rectangle basically, be complementary but also can its shape be made the shape of covering with air bag component, so bend sensor horn switch, cover protecgulum and cover bonnet also can be for example square or circular with the hot forming processing method.
See also Fig. 3 and Fig. 4.Fig. 3 and Fig. 4 show another embodiment of horn switch cover 66 of the present utility model.It and film horn switch 64 together use the part as horn switch assembly 62.Film horn switch 64 for those present technique fields the skilled person know, at United States Patent (USP) 5,369, disclose and described a kind of film horn switch in 232.Usually, film horn switch 64 comprises two thin slices of being made by flexible plate 68 as thin as a wafer, has conductive coating 69 on the described base plate, and described conductive coating is separated by thin separator 70.The effect of pushing that acts on the film horn switch 64 pushes away together two conductive coatings with closed horn control circuit, and described film horn switch can be connected on this horn control circuit to trigger long distance loudspeaker.
Fig. 5 to Figure 10 shows the horn switch cover of the present utility model with different fixing device.See also Fig. 5 and Fig. 6.Fig. 5 and Fig. 6 show another horn switch assembly 100 of the present utility model.Described horn switch assembly 100 and Fig. 3 and horn switch assembly 62 shown in Figure 4 are similar.Two lugs 84 and two lug supportings 86 of just having replaced Fig. 3 and horn switch assembly 62 shown in Figure 4, and used two pillar bars 102, these two little masts extend out and extend through two holes 104 that form at cover bonnet 74 from the back inner surface 92 of cover protecgulum 72.Described pillar bar 102 be positioned at the cover protecgulum 72 second edge 90 near, all holes 104 be positioned at cover bonnet 74 second edge 98 near.Pillar bar 102 has all heads 106, and all holes 104 are passed in the clatter of described head card for one, and is extending through cover bonnet 74 near all holes 104 so that the cover bonnet is fixed on the cover protecgulum 74.Horn switch assembly 10 illustrated in figures 1 and 2 also can have all little masts and all holes are used for the cover protecgulum is fixed in above the cover bonnet, to replace all lugs and lug supporting.
See also Fig. 7 and Fig. 8.Fig. 7 and Fig. 8 show another horn switch assembly 108 of the present utility model.Described horn switch assembly 108 and Fig. 3 and horn switch assembly 62 shown in Figure 4 are similar.But, do not adopt two lugs and two lug supportings 86 of Fig. 3 and horn switch assembly 62 shown in Figure 4, second edge 90 of cover protecgulum 72 is crooked backward to form a U-shaped lip sigmoid part 110, second edge 88 of this U-shaped lip sigmoid part and cover bonnet 74 fastens or meshes, thereby the cover bonnet is fixed on the cover protecgulum.Horn switch assembly 10 illustrated in figures 1 and 2 also can adopt a lip sigmoid part, be used for shown in the cover protecgulum be fixed on the cover bonnet, to replace described all lugs and all lug supportings.
See also Fig. 9 and Figure 10.Fig. 9 and Figure 10 show another horn switch assembly 112 of the present utility model.This horn switch assembly 112 and Fig. 3 and horn switch assembly 62 shown in Figure 4 are similar.Different is, the back inner surface 92 of cover protecgulum 72 that has one weld seam 114 will be adjacent to second edge 90 of cover protecgulum is fixed on the preceding inner surface 96 of cover bonnet 74 at second edge 88 that is adjacent to the cover bonnet.Horn switch assembly 10 illustrated in figures 1 and 2 also can utilize a weld seam that the cover protecgulum is fixed on the cover bonnet, to replace figure lug and all lug supportings.
Owing to adapt to the concrete job requirement and all other requirements and the environmental change of environment, for person skilled in the art is conspicuous, therefore the utility model should be considered as only being confined within the scope of several examples of enumerating for illustrative purposes, on the contrary, the utility model should comprise all changes that do not deviate from the utility model essence and spirit and the variation of setting forth just like appended claims and all equivalents that comprise it.
Claims (13)
1. one kind is used for being fit into a horn switch assembly that is adjacent in the horn switch bag of air bag component lid, it is characterized in that described assembly comprises:
One can be connected in a horn control circuit and be positioned at the horn switch of the back inner surface back of cover protecgulum; And
One horn switch cover, it comprises:
One has a back inner surface and is positioned at the horn switch cover protecgulum of horn switch front;
One is positioned at the horn switch cover bonnet of horn switch back;
Be fixed in the cover bonnet on the cover protecgulum and make horn switch be fixed on this fixture between the two.
2. horn switch assembly as claimed in claim 1 is characterized in that, also comprises: first edge with the cover protecgulum is connected in the hinge portion at first edge of cover bonnet.
3. horn switch assembly as claimed in claim 1 is characterized in that, described fixture comprises:
Two lug supportings that extend out from second edge of described cover protecgulum;
Two second edges from described cover bonnet extend out and with described two lugs that the lug supporting is meshed.
4. horn switch assembly as claimed in claim 1 is characterized in that, described fixture comprises: two holes that extend through described cover bonnet;
Two back inner surfaces from described cover protecgulum extend out and pass two little masts that are positioned at the hole on the cover bonnet and have head, and described head extends in the cover bonnet top in contiguous all holes.
5. horn switch assembly as claimed in claim 1 is characterized in that, described fixture comprises:
Form one with second edge engagement of described bonnet with second edge of the opposed described protecgulum in first edge of described protecgulum, lip sigmoid part, second edge of described bonnet is arranged on the opposite, first edge of described bonnet.
6. horn switch assembly as claimed in claim 1 is characterized in that, described fixture comprises: one is welded on the weldment between cover protecgulum and the cover bonnet.
7. horn switch assembly as claimed in claim 1 is characterized in that, also comprises: a plurality of collection power devices that extend back, are separated from each other from the back inner surface of cover protecgulum.
8. horn switch assembly as claimed in claim 7 is characterized in that, described horn switch comprises a film horn switch.
9. horn switch assembly as claimed in claim 7 is characterized in that, also comprises: a plurality of supporting members that extend forward, are separated from each other from the preceding inner surface of cover bonnet.
10. horn switch assembly as claimed in claim 9 is characterized in that:
Described horn switch comprises that one has the bend sensor horn switch of a plurality of resistive elements that are separated from each other; A plurality of collection power devices that prolong backward, are separated from each other from the back inner surface of cover protecgulum are designed so that each resistive element of bend sensor horn switch is positioned at the back of a collection power device;
The supporting member that a plurality of preceding inner surfaces from the cover bonnet extend, are separated from each other is designed so that each resistive element between two adjacent supporting members, and the pressure that therefore puts on the cover protecgulum can make at least one collection power device bending be positioned near the resistive element of two adjacent supporting members.
11. horn switch assembly as claimed in claim 10 is characterized in that,
All resistive elements of bend sensor horn switch are designed to the multiple row that is parallel to each other, is separated from each other;
A plurality of collection power devices be become to be parallel to each other, be separated from each other, the form of longilineal collection power rib, these collection power ribs are designed so that all collection power ribs substantially perpendicular to all resistive element row, and each resistive element is positioned at the back of a collection power rib;
A plurality of supporting members be parallel to each other, be separated from each other, the form of longilineal supporting rib, therefore all supporting members are parallel to all collection power ribs substantially and depart from it, and substantially perpendicular to all resistive element row, each resistive element between two adjacent supporting rib bars, therefore put on pressure on the cover protecgulum can make at least one collection power rib crooked at least one be positioned near the two adjacent supporting rib bars resistive element.
12. horn switch assembly as claimed in claim 11, it is characterized in that, also comprise: thus pressure keeps the bend sensor horn switch to align with cover protecgulum and cover bonnet and makes each resistive element can remain on one to collect the fixture of aliging of power rib back.
13. horn switch assembly as claimed in claim 12 is characterized in that, described alignment fixture comprises:
Two block pieces that extend back from the back inner surface of cover protecgulum, and first edge of described bend sensor horn switch abuts against hinge portion, and second edge that is arranged on the described bend sensor horn switch on opposite, described bend sensor horn switch first edge abuts against described two block pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96248971 CN2303417Y (en) | 1996-01-11 | 1996-12-26 | Switching components for horn |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US585269 | 1996-01-11 | ||
| CN 96248971 CN2303417Y (en) | 1996-01-11 | 1996-12-26 | Switching components for horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2303417Y true CN2303417Y (en) | 1999-01-06 |
Family
ID=33920691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96248971 Expired - Fee Related CN2303417Y (en) | 1996-01-11 | 1996-12-26 | Switching components for horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2303417Y (en) |
-
1996
- 1996-12-26 CN CN 96248971 patent/CN2303417Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |