JPH0541147A - Device for detecting collision of vehicle or the like - Google Patents

Abstract

PURPOSE:To detect any shock in the plural direction at the time of collision of vehicle as collision of the vehicle. CONSTITUTION:A moving body 22 is supported freely to move forward and backward and freely to turn around of a turning shaft 21 in a housing 10 to be installed to an appropriate part of a vehicle. Each coil spring 25, 26 is assembled to the front side and the rear side of the moving body 22 respectively so as to energize the moving body 22 backward and the forward. When the moving body 22 is moved to the front side direction, resisting the coil spring 25, at the time of collision of the vehicle to the front side direction, this collision is detected by the contact of a contact plate 27 and both connecter pins P1, P2. When the moving body 22 is moved to the rear side direction, resisting the coil spring 26, at the time of collision of the vehicle to the rear side direction, this collision is detected by the contact of a contact plate 28 and both connecter pins P3, P4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an occupant protection system such as an airbag system adopted in a vehicle, and more particularly,
The present invention relates to a collision detection device suitable for use in the passenger protection system.

[0002]

2. Description of the Related Art Conventionally, in a vehicle collision detection device, as shown in, for example, Japanese Patent Laid-Open No. 168525/1990, a plate-shaped rotor is coaxially rotatable about its rotation axis in its housing. Assembling, a weight that plays a role of eccentricity of the center of gravity of the rotor is attached to the outer peripheral portion of the rotor, and a coil spring is coaxially interposed between the bottom wall of the housing and the rotor, The coil spring urges the rotor in one direction of rotation so that the protrusion provided is locked to a stopper provided on a part of the inner peripheral wall of the housing, and a pair of contacts are connected from the rotor to the upper wall of the housing. Fixed to the rotor so as to extend axially symmetrically and radially toward each other, and a pair of terminals are axially symmetrically fitted to the upper wall so as to penetrate the upper wall of the housing. Depending on the eccentric inertial force of the weight generated when the vehicle collides, the rotor is rotated in the other side rotation direction together with each contact against the biasing force of the coil spring, and each contact is brought into contact with the inner end of each terminal. In some vehicles, a vehicle collision is detected and the detection result is taken out from each terminal.

[0003]

However, in such a structure, in response to an impact in one direction (for example, the front direction) at the time of a collision of the vehicle, the rotor causes the coil spring to move in response to the inertial force of the weight. Since the collision of the vehicle is detected only when the vehicle rotates in the opposite rotation direction against the other side, the impact of the vehicle on the other side (for example, the rear side direction) at the time of the collision of the vehicle is detected. There is a problem that a collision cannot be detected. The same applies to the collision detection device disclosed in Japanese Patent Laid-Open No. 54-5578. Therefore,
In order to cope with such a problem, the present invention detects a collision of a vehicle or the like with respect to each of impacts in a plurality of directions at the time of a collision of a vehicle or the like in a collision detection device such as a vehicle. Is what you are trying to do.

[0004]

In order to solve the above-mentioned problems, the first invention is that a housing to be mounted in a proper place such as a vehicle and a movable member in the housing are movable in one direction or in the other direction. A moving body, a one-side spring member arranged on one side of the moving body in the housing to bias the moving body in the other side direction, and a one side spring member on the other side of the moving body in the housing. The other side spring member that is arranged to urge the moving body in the one side direction and the moving body resists the one side spring member when the vehicle or the like collides in the one side direction. One side detecting means for detecting this when the vehicle moves to the other side direction, and detects this when the moving body moves in the other side direction against the other side spring member when the vehicle or the like collides in the other side direction. It is configured by the other side detecting means.

[0005]

According to the first aspect of the present invention, when the moving body moves in the one side direction against the one side spring member at the time of collision of the vehicle or the like in the one side direction, Is detected by the one side detecting means. On the other hand, when the vehicle moves toward the other side against the other side spring member at the time of collision of the vehicle or the like in the other side direction, the other side detecting means detects this. This makes it possible to reliably detect each of the collisions in one direction and the other direction of the vehicle or the like with the single collision detection device configured as in the first aspect of the invention.

[0006]

In order to solve the above problems, a second aspect of the present invention is to provide a housing mounted in an appropriate place such as a vehicle, and between the inner wall portion on one side and the inner wall portion on the other side in the housing. A rotatably supported plate-shaped rotor, and between the rotor and one side inner wall of the housing, rotatably coaxially rotatably supported relative to the rotor and unidirectionally rotated. Accordingly, one side stopper that is locked to one end in the circumferential direction of the inner peripheral wall protruding portion of the housing, and the rotor is coaxially supported between the rotor and the other inner wall portion of the housing so as to be relatively rotatable with the rotor. And the other side stopper that locks to the other end in the circumferential direction of the inner peripheral wall protrusion in response to the rotation in the other direction, and the same axis as the rotor between the one side stopper and the one side inner wall portion of the housing. The one-side stopper is installed according to the twisting reaction force in the other direction. The one side coil spring biased toward one end in the circumferential direction of the inner peripheral wall projecting portion of the housing, the one side coil spring assembled between the other side stopper and the other side inner wall portion of the housing coaxially with the rotor. The other side coil spring that urges the other side stopper toward the other end in the circumferential direction of the inner peripheral wall projecting portion of the housing according to the twisting reaction force in the direction, and the other direction of the rotor provided on the outer peripheral portion of the rotor. The one side stopper is disengaged from one end in the circumferential direction of the inner peripheral wall protruding portion of the housing to rotate in the same direction, and the one side stopper rotates the one side direction to the other side stopper to the housing. Of the inner peripheral wall projecting portion from the other end in the circumferential direction to rotate in the same direction, and the rotor causes the other side stopper by the inertial force of the weight generated when the vehicle collides in the one direction. Through Along with the inertial force of the weight, which is generated when the vehicle or the like collides in the other direction, with the one-direction side detecting means that detects the other side coil spring when it rotates in the other direction against the twisting reaction force. The rotor is constituted by the other-direction-side detecting means for detecting when the rotor rotates in the one direction against the twisting reaction force of the one-side coil spring via the one-side stopper.

[0007]

According to the second aspect of the present invention, when the vehicle or the like collides in the one direction, the rotor passes through the other side stopper due to the inertial force of the weight generated in response to the collision. The one-direction side detection means detects this when the coil spring rotates in the other direction against the torsional reaction force of the coil spring on the other side. On the other hand, at the time of a collision of the vehicle or the like in the other direction, the rotor resists the torsional reaction force of the one-side coil spring via the one-side stopper due to the inertial force of the weight corresponding to the one-direction. When it turns to, the other direction side detecting means detects it. This makes the second
With the single collision detection device having the configuration of the invention, it is possible to reliably detect each of the collisions in one direction and the other direction of the vehicle or the like.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (A) shows a vehicle collision detection device according to the present invention. The collision detection device includes a cylindrical housing 10 made of a synthetic resin material and a collision detection mechanism 20 coaxially assembled in the housing 10. The housing 10 has its axis in the left-right direction of the vehicle. It is mounted in place on the vehicle body of the vehicle so that it is aligned with the axis and maintained in a horizontal position. The collision detection mechanism 20 has a support shaft 21 made of a metal material.
The left and right ends 21a and 21b of the housing 10
The left and right side walls 10a, 10b of the housing 10 are axially supported in the respective annular bosses 11, 12 that coaxially project inward, and the housing 10
It is coaxially supported inside and is not displaceable in the axial direction.

Further, the collision detection mechanism 20 has a cylindrical moving body 22 made of a metallic material.
Is coaxially slidably fitted in an intermediate portion of the support shaft 21 in the axial hole portion 22a so as to be slidable in the axial direction. Further, the outer peripheral wall 22 b of the moving body 22 has a small-diameter hole portion 1 of the housing 10.
3, the outer peripheral wall 22b of the moving body 22 has an axial length that is opposite to the inner peripheral wall of the housing 10.
It corresponds to the axial length of the inner peripheral wall of the small diameter hole 13. The stopper 23 is formed of an electrically insulating material in an annular plate shape, and the stopper 23 has an annular boss 23a.
The left end side annular boss 22c of the moving body 22 is loosely coaxially fitted from the outside. On the other hand, the stopper 24 is
Similarly to the above, the stopper 24 is formed in an annular plate shape with an electrically insulating material, and the stopper 24 is coaxially loosely fitted to the right end side annular boss 22d of the moving body 22 from the outside by the annular boss 24a thereof. ..

The coil spring 25 is provided in the housing 10.
Inside the large diameter portion 14 on the left side of the boss 1 of the housing 10.
1, the left end portion 21a of the support shaft 21 and the boss 23a of the stopper 23 are coaxially fitted from the outside, and the coil spring 25 has its left and right end portions 25a and 25b. And the left wall of the stopper 23, respectively, so that the stopper 23 is attached to the housing 10
The small diameter portion 13 is urged toward the left end. On the other hand, the coil spring 26 has the same shape and dimension as the coil spring 25 in the right large-diameter portion 15 of the housing 10, and has the boss 24 a of the stopper 24, the right end 21 b of the support shaft 21, and the boss 12 of the housing 10. The coil spring 26 is fitted coaxially from the outside, and the coil spring 26 is abutted on the right wall of the stopper 24 and the right wall 10b of the housing 10 at both left and right ends 26a and 26b, respectively.
4 is urged toward the right end of the small diameter portion 13 of the housing 10. However, the spring constants of both coil springs 25 and 26 are equal to each other.

The contact plate 27 is fixed to the left wall of the stopper 23, and the contacts 27a and 27b of the contact plate 27 extend symmetrically in the front-rear direction and extend toward the left in a flared shape. Both connector pins P1 and P2 extend from inside the left large diameter portion 14 of the housing 10 via the left wall 10a thereof, and the L-shaped inner end portions P11 and P22 of these connector pins P1 and P2 are The tips of the contacts 27a and 27b of the contact plate 27 are opposed to each other with a predetermined gap. However, the contact plate 27 is connected to the positive-side terminal of the battery B via the ignition switch IG of the vehicle, as shown in FIG. 1 (B). In addition, each connector pin P
1, 1 and P2 are grounded at their outer ends via squibs S1 and S2 mounted on the left side of the vehicle.

On the other hand, the contact plate 28 is fixed to the right wall of the stopper 24, and the contacts 28a and 28b of the contact plate 28 are extended symmetrically in the front-rear direction and in a divergent shape toward the right. .. Both connector pins P3 and P4 extend from the inside of the right large-diameter portion 15 of the housing 10 through the left wall 10b, and the L-shaped inner end portions P33 and P44 of these connector pins P3 and P4 are
Each contact 28a, 28b of the contact plate 28
Are opposed to the tip of each of them via the predetermined interval. However, as shown in FIG. 1B, the contact plate 28 is connected to the positive terminal of the battery B via the ignition switch IG of the vehicle. Further, the respective connector pins P3, P4 are grounded at their outer ends via the respective squibs S3, S4 mounted on the right side of the vehicle.

In the first embodiment configured as described above, if the vehicle is in a normal traveling state under the closing of the ignition switch IG, each of the coil springs 25 and 26 of the collision detection mechanism 20 will be in operation. Under the balance between the repulsive forces, the stopper 23 is urged by the coil spring 25 to contact the left end of each of the moving body 22 and the small diameter portion 13 of the housing 10, as shown in FIG. The stopper 24 is urged by the coil spring 26 and is in contact with the right ends of the moving body 22 and the small diameter portion 13 of the housing 10. Therefore, the moving body 22 is held between the stoppers 23 and 24 and is maintained in the small diameter portion 13 of the housing 10. When the vehicle collides on its left side in such a traveling state, the moving body 22 pushes the stopper 23 against the coil spring 25 and pushes the stopper 23 against the left side due to the leftward impact. Slide toward. After that, contact plate 27
Each contact 27a, 27b of both connector pins P
When the inner ends P11 and P22 of the first and P2 contacts, respectively, the squibs S1 and S2 move from the battery B to the ignition switch IG, the contact plate 27 and the connector pins P.
Power is supplied via 1 and P2 respectively to start. This means that the collision detection device detects a collision on the left side of the vehicle and activates both squibs S1 and S2.

On the other hand, when the vehicle is in the normal traveling state as described above, when the vehicle collides at the right side portion thereof, the moving body 22 is affected by the impact in the right direction.
, While pushing the stopper 24 against the coil spring 26, slides rightward along the support shaft 21. After that, the contacts 28a, 28b of the contact plate 28
However, when the inner ends P33 and P44 of both connector pins P3 and P4 are respectively contacted, the respective squibs S3 and S4 are transferred from the battery B to the ignition switch IG and the contact plate 28.
Also, the power is supplied through the respective connector pins P3 and P4 to start the operation. This means that the collision detection device detects a collision on the right side of the vehicle and activates both squibs S3, S4.

As described above, in the first embodiment, the collision detection mechanism 20 detects any one of the collisions on the left side and the right side of the vehicle in the housing 10 as described above. With this configuration, a single collision detection device can detect both a left-side collision and a right-side collision of the vehicle.

Next, a modified example of the first embodiment will be described with reference to FIG. 2. In this modified example, instead of the moving body 22 described in the first embodiment, a moving body 29 is used.
And the support shaft 21 described in the first embodiment.
The omission of is characteristic of its configuration.
The moving body 29 is formed of a metal material in a columnar shape, and like the moving body 22, the moving body 29 is sandwiched by both stoppers 23 and 24 so as to be coaxial with the small diameter portion 13 of the housing 10. It is fitted so that it can slide in any direction.
In this case, the outer peripheral wall 29a of the moving body 29 faces the inner peripheral wall of the small diameter hole portion 13 of the housing 10 via an annular gap, and the axial length of the outer peripheral wall 29a of the moving body 29 is the same as that of the housing 10. It matches the axial length of the inner peripheral wall of the small diameter hole 13. Other configurations are similar to those of the first embodiment.

In this modified example having such a configuration,
If the vehicle is in a normal traveling state, the moving body 22 moves to the both stoppers 23, 2 under the balance between the repulsive forces of the coil springs 25, 26, as in the first embodiment.
It is sandwiched by 4 and maintained in the small diameter portion 13 of the housing 10.

When the vehicle collides with the left side portion in such a traveling state, the moving body 29 pushes the stopper 23 against the coil spring 25 due to the impact to the left side of the vehicle, and the moving body 29 pushes the stopper 23. It slides leftward along the inside of the small diameter portion 13. After that, when the contacts 27a and 27b of the contact plate 27 come into contact with the inner ends P11 and P22 of the connector pins P1 and P2, respectively,
Each squib S1, S2 is activated in the same manner as described in the first embodiment. This means that, also in this modification, the collision detection device detects the collision on the left side of the vehicle and detects both skis S.
1 means to activate S2.

On the other hand, when the vehicle is in the normal traveling state as described above, when the vehicle collides at the right side portion thereof, the moving body 29 is affected by the impact in the right direction.
, While pushing the stopper 24 against the coil spring 26, slides rightward along the inside of the small diameter portion 13 of the housing 10. After that, when the contacts 28a, 28b of the contact plate 28 come into contact with the inner end portions P33, P44 of the connector pins P3, P4, respectively, the squibs S3, S4.
Starts in the same manner as described in the first embodiment. This means that, also in this modification, the collision detection device detects a collision on the right side of the vehicle and activates both squibs S3 and S4.

As described above, in this modified example, the support shaft 21 described in the first embodiment is omitted, and the moving body 22 is used instead of the moving body 22, so that it is much simpler. With the configuration, the same effect as that of the first embodiment can be achieved.

FIGS. 3 and 4 show a second embodiment of the vehicle collision detection device according to the present invention. The collision detection device comprises a housing 30 and a collision detection mechanism 40 assembled in the housing 30. It is composed of and. The housing 30 is formed so as to have each of the illustrated sectional shapes in FIGS. 3 and 4A.
Is mounted on the bottom wall 31 of the vehicle at an appropriate position in the passenger compartment of the vehicle so that its axial direction is aligned horizontally with the longitudinal direction of the vehicle. The collision detection mechanism 40 is shown in FIGS.
As shown in (A), a rotor assembly 40a is provided, and the rotor assembly 40a has a front shaft end portion 41a of the rotating shaft 41 and a front wall 32 of the housing 30.
Is rotatably supported by an annular boss 32a that is coaxially projected to the rear shaft end portion 41b of the rotary shaft 41, and
It is rotatably supported by an annular boss 33a coaxially protruding from the rear wall 33 and is concentrically assembled in the housing 30.

Further, the rotor assembly 40a is provided with a substantially semi-circular disk-shaped rotor 42. This rotor 42 has its annular boss 42a fitted to the central portion of the rotary shaft 41 so as to be located in the upper portion of the housing 30. From the lower part to the lower part, the rotary shaft 4
It is adapted to rotate concentrically with 1. Rotor 4
A weight 43 is provided at the center of the outer peripheral portion of FIG.
As shown by, the weight 43 plays a role of making the center of gravity of the rotor 42 eccentric to the outside in the drawing. Each of the plate-shaped stoppers 44, 45 has an annular base 44.
a and 45a, the boss 42a of the rotor 42 is sandwiched from both front and rear sides, and is rotatably and coaxially fitted to the intermediate portion of the rotary shaft 41.
The locking portion 44b of 4 is a protrusion portion 34a that protrudes inward from the upper end portion of the peripheral wall 34 of the housing 30 in a U-shape and the weight 4b.
Both of the left ends (corresponding to the respective right ends in FIG. 3) of 3 extend in the radial direction so as to be locked from the left side. On the other hand, the locking portion 45b of the stopper 45 extends in the radial direction so as to be locked from the right side to both the protruding portion 34a of the peripheral wall 34 of the housing 30 and each right end of the weight 43.

As shown in FIG. 4A, the coil spring 46 is coaxially loosely fitted to the boss 32a of the housing 30, the front portion of the rotary shaft 41, and the ring plate 44c from the outside and is in front of the housing 30. The coil spring 46 is sandwiched between the wall 32 and the base 44a of the stopper 44, and the front end of the coil spring 46 is fixed to the outer periphery of the boss 32a of the housing 30, while the coil spring 46 has a hook-shaped rear end. As shown in FIG. 3, the end portion 46a is engaged with the protrusion 44d of the locking portion 44b of the stopper 44 from the left side. However, the ring plate 44c is coaxially overlapped and fixed to the base portion 44a of the stopper 44, and is rotatably fitted to an intermediate portion of the rotation shaft 41. Therefore, the coil spring 46 urges the locking portion 44b of the stopper 44 in the counterclockwise direction in FIG.

On the other hand, the coil spring 47 has the same shape and dimensions as the coil spring 46, and as shown in FIG. 4 (A), is attached to the ring plate 45c, the rear portion of the rotary shaft 41 and the boss 32b of the housing 30. The coil spring 47 is coaxially loosely fitted and is sandwiched between the base portion 45a of the stopper 45 and the rear wall 33 of the housing 30, and the hook-shaped front end portion 47a of the coil spring 47 is shown in FIGS. ), The protrusion 45d of the locking portion 45b of the stopper 45
The right end of the coil spring 47 is fixed to the outer periphery of the boss 32b of the housing 30. However, the ring plate 45c is coaxially overlapped and fixed to the base portion 45a of the stopper 45, and the rotary shaft 41c
It is rotatably fitted in the middle part of the. For this reason, the coil spring 47 is provided on the stopper 45 of the stopper 45.
b is biased in the clockwise direction shown in FIG. In addition,
The spring constants of the coil springs 46 and 47 are the same.

The contact plate 48 is formed of a conductive material so as to have the shape shown in FIG. 3, and the contact plate 48 has a rectangular base 48.
At a, it is fixed to the right end of the front surface of the rotor 42 in the direction shown in FIG. Also, this contact plate 48
Includes a pair of contacts 48b, 48c, each of which extends from the base portion 48a toward the protruding portion 34a of the housing 30 and extends obliquely toward the front wall 32 of the housing 30. is doing. On the other hand, the contact plate 49 has the same shape and dimensions as the contact plate 48, and is fixed to the left end of the rear surface of the rotor 42 in the direction shown in FIG. Also, this contact plate 4
9 is provided with a pair of contacts 49b and 49c,
Each of these contacts 49b, 49c extends from the base 49a toward the protruding portion 34a of the housing 30 and also extends obliquely toward the rear wall 33 of the housing 30.

Both connector pins P5 and P6 are shown in FIGS.
As shown in (A), each connector pin P5, P6 is formed in a substantially U-shape, and its base portion P51, P61 is formed.
At the center of the right side of the front wall 32 of the housing 30, it is vertically provided so as to be adjacent thereto in the radial direction. Also, both connector pins P
5 and P6 have arcuate contact portions P52 and P62, respectively, and these contact portions P52 and P62 are arcuate about the axis of the rotary shaft 41 and parallel to the front surface of the rotor 42. It extends so as to be contacted by the tip portions of the contacts 48b and 48c. However, contact part P52
The radius of the rotating shaft 41 of the contact 48b is
Is equal to the distance between the tip of the contact shaft P and the axis of the rotation shaft 41, and the radius of the contact portion P62 with respect to the axis of the rotation shaft 41 is the same as the tip of the contact 48c and the axis of the rotation shaft 41. Is equal to the distance between. Further, the upper ends of the contact portions P52 and P62 respectively contact the contacts 48b and 48c when the rotor 42 rotates a predetermined angle in the counterclockwise direction from the position shown in FIG.
Is in a position to be contacted by. Both connector pins P
Each of the connecting portions P53 and P63 of 5 and P6 extends outward through the front wall 32 of the housing 30.

The two connector pins P7 and P8 have the same shape and dimensions as the two connector pins P5 and P6, respectively, and are located symmetrically with respect to the axis of the rotary shaft 41 in FIG. The respective connector pins P7, P8 are vertically provided at their bases P71, P81 so as to be adjacent to the central portion on the left side of the rear wall 33 of the housing 30 in the radial direction. Also, both connector pins P
7 and P8 have arcuate contact parts P72 and P82, respectively, and these contact parts P72 and P82 are arcuate about the axis of the rotary shaft 41 and parallel to the rear surface of the rotor 42. It extends so as to be contacted by the tip portions of the contacts 49b and 49c, respectively. However, contact part P72
The radius of the rotating shaft 41 of the contact 49b is
Is equal to the distance between the tip of the contact shaft P and the axis of the rotation shaft 41, and the radius of the contact portion P82 with respect to the axis of the rotation shaft 41 is the same as the tip of the contact 49c and the axis of the rotation shaft 41. Is equal to the distance between. The upper ends of the contact portions P72 and P82 are in contact with the contacts 49b and 49c when the rotor 42 is rotated by a predetermined angle in the clockwise direction from the position shown in FIG. Both connector pins P
The connecting portions P73 and P83 of 7 and P8 extend outward through the rear wall 33 of the housing 30.

Therefore, in the collision detecting mechanism 40 having such a structure, the contact plate 48 has a structure as shown in FIG.
As shown in (B), it is connected to the positive terminal of the battery B via the ignition switch IG of the vehicle. Also, each connector pin P5, P6 is
At P53 and P63, they are grounded through the skis S5 and S6 mounted on the right door of the vehicle. On the other hand, as shown in FIG. 4B, the contact plate 49 is connected to the positive terminal of the battery B via the ignition switch IG. Also, each connector pin P7, P8
The connection portions P73 and P83 are grounded via the skibs S7 and S8 mounted on the left door of the vehicle.

In the second embodiment constructed as described above, when the vehicle is in a normal traveling state under the closing of the ignition switch IG, the respective twists of the coil springs 46, 47 of the collision detection mechanism 40 are twisted. Under the balance between the repulsive forces, the stopper 44 is urged by the coil spring 46 at the engaging portion 44b thereof, and as shown in FIG. 3, the weight 43 and the left end of each of the protruding portions 34a of the housing 30. On the other hand, the stopper 45 is urged by the coil spring 47 at the engaging portion 45b thereof to engage with both the weight 43 and each right end of the protruding portion 34a of the housing 30. ing. Therefore, the weight 43 is sandwiched between the stoppers 44 and 45, and the rotor 42 is moved to the position shown in FIG.
The condition shown in is maintained.

When the vehicle collides with the left side portion in such a running state, the rotor 42 causes the coil spring to move in response to the inertial force to the left of the weight 43 due to the impact to the left side. While pressing the stopper 45 so as to disengage it from the protrusion 34a against 47, it is rotated counterclockwise in FIG. After that, the contacts 48b, 48c of the contact plate 48
Contact the contact portions P52, P62 of the two connector pins P5, P6, respectively, the squibs S5, S6 move from the battery B to the ignition switch IG and the contact plate 4 respectively.
8 and each of the connector pins P5 and P6 are supplied with power to start. This means that the collision detection device detects a collision on the left side of the vehicle when the vehicle is running and detects both skis S5,
It means to activate S6.

On the other hand, when the vehicle is in the normal traveling state as described above, when the vehicle collides on the right side portion thereof, the rotor 42 is impacted in the rightward direction due to the impact to the right side portion.
However, according to the rightward inertial force of the weight 43, the stopper 44 is pressed against the coil spring 46 so as to be disengaged from the protruding portion 34a, and is rotated clockwise about the rotary shaft 41 as shown in FIG. Move. After that, contact plate 49
Each contact 49b, 49c of both connector pin P
When each of the contact portions P72, P82 of 7, 7 is brought into contact, the squibs S7, S8 are moved from the battery B to the ignition switch IG, the contact plate 49 and the connector pins P.
Power is supplied via 7 and P8 respectively to start. This means that the collision detection device detects a collision on the right side of the vehicle when the vehicle is running and activates both squibs S7 and S8.

As described above, in the second embodiment, the collision detecting mechanism 40 is provided in the housing 30 as described above for any one of the collisions on the left side portion and the right side portion when the vehicle is running. The single collision detection device can detect each of the collisions on the left side portion and the right side portion when the vehicle is traveling.

In the first embodiment, its modifications and the second embodiment, the case where the collision detection device detects one of the collisions on the left side and the right side of the vehicle has been described. However, the present invention is not limited to this, and for example, a collision detection device may be applied so as to detect one of the collisions on the front side and the rear side of the vehicle. Also,
In carrying out the present invention, the collision detection device according to the present invention may be provided not only in a vehicle but also in a ship, for example.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention and an electric connection circuit diagram thereof.

FIG. 2 is a sectional view showing a modification of the first embodiment.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 4 showing a second embodiment of the present invention.

4 is a cross-sectional view taken along line 4-4 of FIG. 3 and an electrical connection circuit diagram.

[Explanation of symbols]

10, 30 ... Housing, 20, 40 ... Collision detection mechanism,
21 ... Support shaft, 22, 29 ... Moving body, 23, 24, 4
4, 45 ... Stopper, 25, 26, 46, 47 ... Coil spring, 27, 28, 48, 49 ... Contact plate, 40a ... Rotor assembly, 41 ... Rotating shaft, 4
2 ... Rotor, P1 to P8 ... Connector pins.

Claims (2)

[Claims] 1. A housing to be mounted in a suitable place such as a vehicle, a movable body fitted in the housing so as to be movable in one direction or the other direction, and one side of the movable body in the housing. A one-side spring member that is arranged to urge the moving body in the other side direction, and one side spring member that is arranged on the other side of the moving body in the housing and urges the moving body in the one side direction. Another side spring member, one side detection means for detecting when the moving body moves in the one side direction against the one side spring member at the time of collision of the vehicle or the like in the one side direction, a vehicle etc. A collision detection device for a vehicle or the like, which comprises another side detection means for detecting when the moving body moves in the other side direction against the other side spring member during the collision in the other side direction. 2. A housing to be mounted in a suitable place such as a vehicle, a plate-shaped rotor rotatably supported between an inner wall portion on one side and an inner wall portion on the other side in the housing, and the rotor. Is coaxially rotatably supported relative to the rotor between the housing and one side inner wall portion of the housing, and is locked to one circumferential end of the inner peripheral wall projecting portion of the housing in response to rotation in one direction. Between the one side stopper and the rotor and the other side inner wall portion of the housing. The other side stopper that is locked to the other end in the circumferential direction, is coaxially assembled with the rotor between the one side stopper and the one side inner wall portion of the housing, and corresponds to the twisting reaction force in the other direction. Energize the one side stopper toward one end in the circumferential direction of the protruding portion of the inner peripheral wall of the housing. Is mounted coaxially with the rotor between the one-side coil spring, the other-side stopper and the other-side inner wall portion of the housing, and the other-side stopper is attached to the housing in response to a twisting reaction force in the one direction. The other side coil spring that urges the inner peripheral wall protruding portion toward the other end in the circumferential direction, and the one side stopper that is provided on the outer peripheral portion of the rotor and rotates in the other direction of the rotor. The peripheral wall protrusion is disengaged from one end in the circumferential direction and rotated in the same direction, and the other side stopper is disengaged from the other end in the circumferential direction of the inner peripheral wall protrusion of the housing in response to the rotation of the rotor in one direction. Direction and the inertia force of the weight generated when the vehicle or the like collides in the one direction, the rotor resists the torsional reaction force of the other side coil spring through the other side stopper, and The other Of the one-side coil spring through the one-side stopper due to the inertial force of the weight generated when the vehicle or the like collides in the other direction. A collision detection device for a vehicle or the like, comprising another direction detection means for detecting a one-way rotation against a twisting reaction force.