JPH0519022U - Starter - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to obtain a starting device that can surely actuate one actuator and another actuator at the same time during sudden vehicle deceleration. [Structure] The moving contact 1 is attached to the locking portion 54C of the ignition pin 54.
40 is fixed. The moving contact 140 includes twelve contact pieces 140C, and a fixed contact 142 is disposed at a position where it interferes with the movement trajectory. As the ignition pin 54 moves, the free end 142E of the fixed contact 142 and the moving contact 1
The contact piece 140C of 40 maintains its contact state while elastically deforming each other. Therefore, it is possible to reliably operate the airbag devices for the driver's seat and the passenger's seat at the same time when the vehicle suddenly decelerates. Further, since both contacts 140 and 142 are elastically deformed, chattering can be prevented as compared with the case where these contacts are rigid.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a starting device for simultaneously activating a plurality of actuators when the vehicle is rapidly decelerated.

[0002]

[Prior Art]

 There are various actuators that operate when the vehicle suddenly decelerates.Hereinafter, a mechanical ignition type airbag device is installed on the driver's side as one actuator and an electric ignition type is used on the passenger side as another actuator. The case where an airbag device is installed will be described as an example.

In this type of airbag system, a mechanical ignition type activating device is provided in the airbag device on the driver's side, and the airbag device on the driver's side is activated by the activation of the activating device. Also, the airbag device on the passenger side is operated by electrically detecting the operating state of the activation device. That is, in this starter, there are balls that move inertially when the vehicle is suddenly decelerated, as well as operating parts such as ignition pins that move toward the detonator by the biasing force of the compression coil spring and collide with the detonator due to the inertial movement of the ball. The airbag device on the driver's side operates when the detonator fires, and the airbag device on the passenger's side operates by using the movement of the operating parts such as the ignition pin. ing.

[0004] Various configurations have already been devised by the applicant of the present invention for the activation device for operating both airbag devices. Among them, among them, the brim portion of the ignition pin is used as the moving contact and the activation device is operated. There is a structure in which a pair of fixed contacts that come into contact with the brim by the movement of the ignition pin are arranged inside the body (for example, see Japanese Patent Application No. 2-40930). Both the collar portion and the pair of fixed contacts are rigid bodies.

[0005]

However, according to this structure, in order to simultaneously actuate the driver-side airbag device and the passenger-side airbag device at the time of sudden deceleration of the vehicle, a pair of fixed contacts are used. The problem arises that the installation position must be set quite severely.

Explaining this problem in more detail, the detonator ignites at the initial contact position where the axial tip of the ignition pin first contacts the detonator, but usually a slight amount is necessary to ensure the ignition of the detonator. The specified piercing distance is secured. If the fixed contact is arranged so that the brim (moving contact) and the fixed contact are electrically connected at the final contact position where the axial tip of the ignition pin pierces the detonator by the predetermined piercing distance, the ignition pin and the detonator If the airbag device on the driver's seat side is activated at the initial contact position with the ignition pin, the ignition pin may receive the blowback of the detonator and the collar and the fixed contact may not be electrically connected. On the contrary, if the fixed contact is arranged so that the collar and the fixed contact conduct at the initial contact position between the ignition pin and the detonator, both the collar and the fixed contact are rigid bodies, and the ignition pin is in the initial contact position. There is a possibility that only the airbag device on the passenger side operates and the airbag device on the driver's side does not operate because the piercing distance cannot be secured sufficiently.

Further, no matter which position the fixed contact is arranged, chattering is likely to occur because the collar portion and the pair of fixed contact points are rigid, and the squib current is applied to the airbag device on the passenger side. The problem is that stable supply becomes difficult.

In consideration of the above facts, an object of the present invention is to obtain a starter device that can surely actuate one actuator and another actuator at the same time during sudden vehicle deceleration.

[0009]

[Means for Solving the Problems]

 The present invention is a starting device for simultaneously activating a plurality of actuators during sudden deceleration of a vehicle. The inertial body moves inertially during sudden deceleration of the vehicle, and the inertial body moves the inertial body from a first position to a second position. When the actuator reaches the second position and reaches the second position, the ignition member that activates the one actuator, the first contact means integrally provided on the ignition member, and the first contact means. When the second contact means provided at a position that interferes with the movement locus of the contact means, and the first contact means and the second contact means are in contact with each other, the other actuator is activated. A control means, at least one of the first contact means and the second contact means is elastically deformable, and a substantially intermediate position between the first position and the second position. From the front to the second position A first contact means and said second contact means is characterized by maintaining the contact state.

[0010]

[Action]

 According to the present invention, since the acceleration applied to the inertial body is small in a normal vehicle traveling state, the inertial body does not move or the amount of inertial movement is very small. Therefore, the ignition member does not move from the first position to the second position. As a result, one actuator does not work.

When the vehicle suddenly decelerates from this state, the acceleration applied to the inertial body increases, so that the ignition member moves from the first position to the second position. When the ignition member has reached the second position, the one actuator is activated.

Further, the movement of the ignition member also causes the movement of the first contact means provided integrally with the ignition member. Then, the first contact means is brought into contact with the second contact means at a substantially intermediate position between the first position and the second position. When the first contact means and the second contact means are brought into contact with each other, the control means activates the other actuator.

Here, in the present invention, since at least one of the first contact means and the second contact means is elastically deformable, the first contact means and the second contact means come into contact with each other. After that time point, at least one of the first contact means and the second contact means is elastically deformed to maintain the contact state. Moreover, this contact state is maintained from the substantially intermediate position between the first position and the second position to the second position. Therefore, even if the ignition member retracts due to blowback of the detonator, the elastically deformable first contact means (or the second contact means, or the first contact means and the second contact means). The elastic deformation of) only decreases, and the contact state between the two is still maintained. Therefore, as compared with the conventional case where both the moving contact and the fixed contact are rigid bodies, it is possible to reliably operate one actuator and the other actuator at the same time during sudden vehicle deceleration. Further, since at least one of the first contact means and the second contact means is elastically deformable, chattering can be suppressed as much as possible, compared with the case where both the moving contact and the fixed contact are rigid bodies. Therefore, the operation of other actuators can be ensured from this point as well.

[0014]

【Example】

 FIG. 7 is a schematic cross-sectional view of an airbag device A on the driver's seat side and an airbag device B on the passenger's seat side, which includes an activation device 32 according to an embodiment of the present invention.

In the airbag apparatus A on the driver's seat side as one actuator, a hub 14 of a steering wheel 12 is fixed to the tip of a steering shaft 10, and a substantially box-shaped base plate is parallel to the hub 14. 16 is supported via a support bracket 18 having a substantially box shape. A pad 20, a bag body 22, and an inflator 24 are attached to the base plate 16.

The pad 20 is arranged on the occupant side of the base plate 16 (direction of arrow C in FIG. 7). A frame-shaped core metal (not shown) is embedded in the periphery of the pad 20, and is fixed to the peripheral edge of the base plate 16 by a rivet or the like via the core metal. Further, a thin portion 26 is formed at the portion of the pad 20 facing the base plate 16, and the pad 20 is easily broken at the thin portion 26.

The bag body 22 is arranged in a folded state on the occupant side of the base plate 16 and is housed between the base plate 16 and the pad 20. An edge of the bag body 22 on the opening side is attached to a substantially central portion of the base plate 16 via a ring plate 28. The ring plate 28 is fastened to the base plate 16 with a bolt (not shown), and the edge of the bag body 22 on the opening side is pressed against the base plate 16.

The inflator 24 has a columnar shape, and is arranged so as to pass through a circular hole formed in a substantially central portion of the base plate 16. A flange 30 extending in the radial direction of the inflator 24 is formed in the inflator 24 at an axially intermediate portion thereof. The flange 30 is fixed to the occupant side of the base plate 16 by a bolt (not shown). A plurality of gas holes (not shown) are formed at predetermined intervals on the occupant side of the peripheral surface of the inflator 24. A starter 32, which will be described later, is built in the shaft core of the inflator 24, and an explosive (not shown) is arranged on the outer periphery of the starter 32 and a gas generating substance 34 is enclosed. .. Hereinafter, this starting device will be described in detail with reference to FIGS.

As can be seen from FIGS. 4 and 5, the starting device 32 is provided with a substantially cylindrical upper case 36 and a lower case 38, and in a state where the upper case 36 and the lower case 38 are fitted to each other. The cover 40 is housed in the cover 40 and the end portion is caulked and fixed.

A cylinder 42 is arranged in the upper case 36 along the axial direction thereof, and a ball 44 as an inertial body is accommodated in the cylinder 42. When the vehicle suddenly decelerates, the ball 44 inertially moves toward the front side of the paper surface of FIG. It should be noted that the balls 44 and other parts in the starting device 32, which will be described later, are arranged two by two at symmetrical positions with respect to the axis of the starting device 32, but only one part will be described below. ..

One end in the axial direction of the shaft 46 A of the drive shaft 46 arranged in the contact surface between the upper case 36 and the lower case 38 is in contact with the end of the ball 44 on the side opposite to the occupant. .. On the drive shaft 46, a locking portion 46B is formed in the vicinity of an axially intermediate portion of the shaft 46A so as to be orthogonal to the shaft 46A, and further, a pair of support shafts 46C protrudes from the locking portion 46B to allow the upper shaft 46C to project. The case 36 and the lower case 38 are axially supported at a position within the contact surface.

A bias pin 50 biased by a bias spring (not shown) is arranged in the upper case 36. The tip of the bias pin 50 is the other end of the shaft 46 A of the drive shaft 46. Is in contact with the part.

Inside the lower case 38, there is a coil spring 52 (in FIG. 5, the coil spring 52 is composed of a coil portion opposite to the ball 44 around the shaft 46 A of the drive shaft 46 and a hook portion protruding in the radial direction from the coil portion). Only a part of the hook portion of the spring 52 is shown). The hook portion is locked to the middle portion of the release pin 48 inserted into the shaft core portion of the starter 32, and the tip portion thereof is located at the end portion of the other ball 44 on the side opposite to the occupant. In the state before the airbag device A is assembled to the steering wheel 12, the release pin 48 is in the position shown by the solid line in FIG. 5, and the coil spring 52 locked to this releases the direction of inertial movement of the other ball. Movement of the drive shaft 46 and rotation of the drive shaft 46 are prevented, but in the state after assembly, the projection 18A of the support bracket 18 pushes the release pin 48 to the position shown by the chain double-dashed line in FIG. By this, the hook portion is retracted from the above position, and the activating device 32 is made operable.

In addition, an ignition pin 54 (also shown in FIG. 1) as an ignition member is arranged in the activation device 32. The ignition pin 54 has a shaft portion 54A, and a collar portion 54B is formed at an axially intermediate portion thereof. Further, a disc-shaped locking plate 54C is integrally formed on the occupant side surface of the collar portion 54B, and the stepped portion formed by the locking plate 54C and the collar portion 54B is provided with the drive shaft 46. The locking portion 46B is locked. A portion of the shaft portion 54A on the side opposite to the occupant is inserted into a cylindrical spring support portion 56 formed in the lower case 38. A compression coil spring 58 is wound around the spring support portion 56, and presses and urges the ignition pin 54 toward the detonator 62 arranged on the moving direction.

As shown in FIGS. 1 and 2, the locking contact 54C of the ignition pin 54 has a moving contact 140 fixed to the occupant side surface as a first contact means. As shown in FIG. 2, the moving contact 140 includes a disk-shaped pedestal 140A, and a through hole 140B of the shaft portion 54A of the ignition pin 54 is formed in the shaft core portion of the pedestal 140A. .. Twelve contact pieces 140C are radially provided from the peripheral portion of the through hole 140B of the pedestal 140A. Each contact piece 140C has its tip bent in parallel with the pedestal 140A, and is elastically deformable.

As shown in FIGS. 5 and 3, a pair of leaf spring-shaped fixed contacts 142 as second contact means are arranged on the movement locus of the moving contact 140. As shown in FIG. 3, the fixed contact 142 includes a base portion 142 A fixed to the upper case 36. As shown in FIGS. 6 (A) and 6 (B), the occupant side end of the base portion 142A passes through the small hole 146 of the printed circuit board 144 arranged in the upper case 36 and is then bent at a substantially right angle to make contact. It is a leg portion 142B. The contact leg portion 142B is soldered and joined onto the copper foil pattern 148. A wiring group 152 of the coated electric wire 150 is similarly soldered on the copper foil pattern 148 (note that the mounting portion of the printed wiring board 144A of the coated electric wire 150 is omitted in FIG. 5). This covered electric wire 150 is guided to the outside of the starter 32 (see FIG. 5). A pair of contact point spring portions 142C bent in a direction approaching each other are integrally formed at an intermediate portion in the longitudinal direction of the base portion 142A, and bent ends of the contact point spring portions 142C are provided on the upper body 36. By contacting the step portion 156 (see FIG. 5), the movement of the fixed contact 142 in the height direction (elastic deformation direction) is restricted. Further, a free end 140E extends from the base 142A of the fixed contact 142 via an arcuate bent portion 142D.

The moving contact 140 and the fixed contact 142 are, as shown in FIG. 8A, at the initial position (the stationary position shown in FIG. 5) as the first position of the ignition pin 54. Separated from each other. At approximately the midpoint between this initial position and the position where the ignition pin 54 collides with the detonator 62 as the second position, the tip of the contact piece 140C of the moving contact 140 and the tip of the free end 140E of the fixed contact 142 are formed. The initial contact state in which and are in contact with each other (state shown in FIG. 8B). Further, in the state where the contact piece 140C of the moving contact 140 and the free end 140E of the fixed contact 142 are elastically deformed by the maximum amount (the state shown in FIG. 8C), the moving contact 140 and the fixed contact 142 make the final contact. Be in a state. The amount of elastic deformation of the contact piece 140C of the moving contact 140 in this final contact state is Q, and the amount of elastic deformation of the free end 140E of the fixed contact 142 is R (see FIG. 8A).

As described above, the contact range between the contact piece 140C of the moving contact 140 and the free end 140E of the fixed contact 142 is the contact range P in FIG. 8B from the initial contact state to the final contact state. In this contact range P, the contact piece 140C of the moving contact 140 and the free end 140E of the fixed contact 142 are in contact with each other while increasing or decreasing within the elastic deformation amounts Q and R. Is maintained.

A connector 122 is provided at the end of the above-described covered electric wire 150 on the side opposite to the occupant, and the connector 122 is provided around the steering shaft 10 and the connection state thereof is maintained without disconnecting wirings 156 and 170 described later. It is connected to the connector 130 of the roll connector 124 for maintaining. An outer peripheral surface of the roll connector 124 is fixed to the vehicle body 70, and a ring-shaped groove 128 is formed on an end surface on the occupant side and a connector 130 is arranged. Further, the coated wire 132 is wound around the outer periphery of the boss 126 of the roll connector 124 with some space, and the connector 134 is provided at the end of the covered wire 132 and connected to the connector 136. Wirings 156 and 170 are branched from the connector 136, the wiring 170 is directly connected to the minus terminal of the vehicle body power supply 82, and the wiring 156 is connected to the control device 76 as a control means. Wiring 177 is a minus side power source line of the control device 76, and a plus terminal of the vehicle body power source 82 is an electric detonator provided in the airbag device B as another electric ignition type actuator on the passenger side. It is connected to 78 via a wiring 178. Further, the control device 76 is connected via a wiring 88 to a seat switch 86 on the passenger side, which is turned on when an occupant is seated on the passenger seat, and the seat switch 86 is turned on and a moving contact 140 is provided. Only when the fixed contact 142 is electrically connected, the squib current flows, the electric detonator 78 is ignited, the gas generating agent 90 is burned, and the bag 92 is inflated.

The operation of this embodiment will be described below. In a normal vehicle traveling state, the ball 44 does not move or the amount of inertial movement is very small. Therefore, the engaging portion 46B of the drive shaft 46 is disengaged from the flange portion 54B of the ignition pin 54 due to the biasing force of the bias spring. There is no. As a result, the airbag device A on the driver's seat side does not operate.

Further, in this state, the ignition pin 54 is in the state shown in FIG. 8 (A), and the moving contact 140 and the fixed contact 142 are separated from each other. As a result, the airbag device B on the passenger seat side also does not operate. In this way, the normal running condition of the vehicle is maintained.

When the vehicle suddenly decelerates from this state, the ball 44 largely inertially moves to the front side of the paper surface of FIG. Therefore, the drive shaft 46 rotates about the support shaft 46C by a predetermined amount, and the locking portion 46B disengages from the flange portion 54B of the ignition pin 54. As a result, the ignition pin 54 moves in the direction of arrow G in FIG. 8 (A) by the biasing force of the compression coil spring 58 and instantly collides with the detonator 62 (see FIG. 5). For this reason, the detonator 62 ignites, the gas generating substance 34 reacts via an unillustrated transfer agent, and a large amount of gas is generated. Therefore, the bag body 22 expands and the pad 20 is broken at the thin portion 26. The inflated bag body 22 after breaking is interposed between the steering wheel 12 and the occupant. As a result, the occupant on the driver's seat side is reliably protected from the impact when the vehicle suddenly decelerates.

Further, during the movement of the ignition pin 54, the contact piece 140C of the moving contact 140 and the free end portion 142E of the fixed contact point 142 are in an initial contact state (see FIG. 8B), and after that, The contact piece 140C and the free end portion 142E reach the final contact state (see FIG. 8C) while increasing the elastic deformation amounts up to the elastic deformation amounts P and Q. In the contact range P between the contact piece 140C and the free end portion 142E, the contact state, that is, the conduction state between the contact piece 140C and the free end portion 142E is maintained.

Here, when the passenger is not seated in the passenger seat, that is, when the seat switch 86 on the passenger seat side is not turned on, the determination circuit of the control device 76 operates and the contact piece of the moving contact 140 is operated. Whether or not 140C and the free end portion 142E of the fixed contact 142 are electrically connected, the airbag apparatus B for the passenger seat does not operate. However, when the passenger is seated in the passenger seat, that is, when the seat switch 86 is turned on, the determination circuit of the control device 76 determines that the passenger is seated in the passenger seat, and therefore, the movement is further made. Since the contact piece 140C of the contact 140 and the free end portion 142E of the fixed contact 142 are electrically connected, a squib current flows to the airbag device B for the passenger seat, and the electric detonator 78 is ignited by the gusle heat to generate gas. The agent 90 generates a large amount of gas. As a result, the bag 92 of the airbag device B on the passenger seat side is inflated, thereby protecting the occupant seated on the passenger seat.

As described above, in this embodiment, the mechanical ignition type air bag device A is arranged on the driver side, the electric ignition type air bag device B is arranged on the passenger side, and the ignition pin 54 is arranged. Since the moving contact 140 is fixed to the upper case 36 and the fixed contact 142 is disposed on the upper case 36, both the airbag device A for the driver's seat and the airbag device B for the passenger's seat are simultaneously actuated by the single starting device 32. Can be made.

This effect will be described in more detail. Since both the moving contact 140 and the fixed contact 142 are elastically deformable by themselves, when the moving contact and the fixed contact are both rigid as in the conventional case. On the other hand, since the piercing distance of the ignition pin 54 to the detonator 62 can be secured, the airbag device A for the driver's seat can be reliably operated. Further, due to the fact that the moving contact 140 and the fixed contact 142 can be brought into conduction while sliding over the wide contact range P, the ignition pin 54 receives the blowback of the detonator 62, and the ignition pin 54 is removed. Even if it slightly retreats in the direction opposite to the arrow G direction of (A), the elastic deformation amount of the contact piece 140C of the moving contact 140 and the elastic deformation amount of the free end portion 142E of the fixed contact 142 are different from each other at the time of collision. Only by reducing the deformation amounts Q and R, the contact state between the two is still maintained, so that the airbag apparatus B on the passenger side can be reliably operated.

Since both the moving contact 140 and the fixed contact 142 are elastically deformable by themselves, chattering can be prevented as compared with the case where both are rigid. Therefore, the squib current can be stably supplied to the airbag device B for the passenger seat. Therefore, also from this point of view, the airbag apparatus B for the passenger seat can also be operated reliably.

Further, there are 12 contact pieces 140C of the moving contact 140, and even if any of the contact pieces 140C comes into contact with the free end portion 142E of the fixed contact 142, the squib current flows. Even if the ignition pin 54 rotates around the axial direction when the ignition pin 54 receives the blowback of No. 1 and retracts slightly, the contact state between the moving contact 140 and the fixed contact 142 can be reliably obtained. As described above, the structure of the present embodiment has a multi-contact structure with the moving contact 140 and the fixed contact 142, so that the structure is configured so that the moving contact and the fixed contact are in contact with each other at one point. It is possible to prevent chattering. Therefore, the squib current can be stably supplied to the airbag device B for the passenger seat.

That is, according to the present embodiment, both the moving contact 140 and the fixed contact 142 are elastically deformed so that the contact range P can be widened. It is possible to prevent chattering from the viewpoint of the contact structure in which 142 is multi-contact, and from the viewpoint of doubleness, which enables stable supply of the squib current to the airbag apparatus B for the passenger seat, The reliability of the activation device 32 can be improved.

Further, since both the moving contact 140 and the fixed contact 142 are elastically deformed, the reliability of the starting device 32 can be maintained even if the assembling precision is relaxed.

Further, in the present embodiment, both the moving contact 140 and the fixed contact 142 are elastically deformable by themselves, so that, for example, the starting device 32 does not have to be made larger than when the moving contact 140 is made of a rigid body. Also, the moving stroke of the ignition pin 54 can be lengthened by the elastic deformation amount Q of the moving contact 140.

Further, in the present embodiment, the control device 76 prevents the airbag device B on the passenger side from operating when the passenger is not seated on the passenger seat. It is possible to prevent the airbag device B from operating unnecessarily, which can contribute to improving safety.

In this embodiment, the driver side airbag device A is used as one actuator and the passenger side airbag device B is used as another actuator. However, the present invention is not limited to this. The preloader take-up shaft drive member, which is installed in the webbing take-up device on the driver's side as an actuator for forcibly winding the webbing around the take-up shaft when the vehicle suddenly decelerates, and the other side actuator as a webbing take-up device It is possible to apply any of those that actuate a plurality of actuators at the same time by a single starting device, such as applying a take-up shaft driving member of a preloader of the same structure arranged in the device.

Further, in the present embodiment, the passenger side airbag device B is applied as another actuator, but the present invention is not limited to this, and the passenger side airbag device B and the above-mentioned preloader are used as other actuators. Both of the above may be applied, and further, the air bag device B may be separately provided in the rear seat to operate not only the airbag device B on the passenger side but also the air bag device B on the rear seat.

Furthermore, in the present embodiment, the number of the contact pieces 140C of the moving contact 140 is 12, but the number of the contact pieces 140C is not limited to this, and basically, a plurality of pieces may be used. 140C may have an isosceles trapezoidal shape instead of a rectangular shape.

In addition, in the present embodiment, both the moving contact 140 and the fixed contact 142 are elastically deformable by themselves, but the effect of the present invention can be obtained even if only one of them is elastically deformable. Is obtained.

Further, in the present embodiment, the control device 76 is only connected to the moving contact 140, the fixed contact 142, the airbag device B on the passenger side and the seat switch 86. If the airbag device B fails for some reason, it may be connected to a failure memory or the like that stores it.

Further, in the present embodiment, the seat switch 86 is connected to the control device 76, but the present invention is not limited to this, and the seat switch 86 may be omitted.

[0049]

[Effect of the device]

 As described above, the starting device according to the present invention has an excellent effect that one actuator and another actuator can be surely operated simultaneously at the time of sudden deceleration of the vehicle.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view showing an ignition pin to which a moving contact is fixed and a fixed contact according to the present embodiment.

FIG. 2 is a perspective view showing a moving contact of FIG.

FIG. 3 is a perspective view showing a fixed contact of FIG.

FIG. 4 is a cross-sectional view showing a state in which the starter including the moving contact and the fixed contact shown in FIGS. 2 and 3 is cut at a fitting end surface of an upper case and a lower case.

5 is a sectional view taken along line 5-5 of FIG.

6 shows the vicinity of a joint between the fixed contact and the printed circuit board of FIG. 3, FIG. 6 (A) relates to an enlarged view of a portion taken along the line 6 of FIG. 5, and FIG. 6 (B) shows FIG. ) Is a bottom view seen from the arrow S direction.

FIG. 7 is a schematic cross-sectional view showing an airbag apparatus for a driver's seat and an airbag apparatus for a passenger's seat, which are provided with the activation device of FIG.

FIG. 8 is an operation diagram showing the operation of a moving contact and a fixed contact in relation to the movement of an ignition pin. FIG. 8 (A) is a non-contact state between the moving contact and the fixed contact, and FIG. 8 (B) is FIG. 8C is an explanatory diagram showing an initial contact state between the moving contact and the fixed contact, and a final contact state between the moving contact and the fixed contact.

[Explanation of symbols]

 A air bag device (one actuator) B air bag device (other actuator) 32 starter device 44 ball (inertial body) 54 ignition pin (ignition member) 76 control device (control means) 140 moving contact (first contact means) ) 142 fixed contact (second contact means)

Front page continued (72) Inventor Keiichi Tamura, No. 1 Noda, Oita-cho, Oguchi-machi, Niwa-gun, Aichi Prefecture Tokai Rika Denki Seisakusho Co., Ltd. (72) Kenichi Kinoshita, Noda, Oguchi-cho, Niwa-gun, Aichi Tokai Rika Electric Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A starting device for simultaneously activating a plurality of actuators at the time of sudden deceleration of a vehicle, wherein the inertial body moves inertially at the time of sudden deceleration of the vehicle, and the inertial body moves the inertial body from a first position to a second position. The ignition member that activates the one actuator in the state where the actuator reaches the second position and reaches the second position; the first contact means integrally provided on the ignition member; Control for activating another actuator when the first contact means and the second contact means are in contact with each other, and the second contact means provided at a position that interferes with the movement trajectory of the contact means. Means, at least one of the first contact means and the second contact means is elastically deformable, and from the substantially intermediate position between the first position and the second position, Across the second position Starting device whose serial first contact means and said second contact means and maintains a contact state.