JP3517059B2 - Mounting device for vehicle collision detection sensor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle collision detection sensor mounting device for detecting a vehicle collision, and more particularly to a sensor mounting device for improving detection accuracy and manufacturability while protecting the sensor. Regarding technology.

[0002]

2. Description of the Related Art In recent years, for example, an airbag for protecting a driver by bulging a bag accommodated in a steering wheel portion toward a driver from the steering wheel portion by filling air when a vehicle such as an automobile collides. A system has been proposed. In order to operate such an airbag system , it is necessary to detect a collision of the vehicle, and the vehicle is provided with a collision detection sensor.

Since such a vehicle collision detection sensor detects a gravity acceleration (front-back G) in the front-rear direction to detect a collision, the front-rear G can be surely transmitted to the sensor so that the front-rear G can be reliably transmitted. It is necessary to have an angle.
When the cab-over truck is equipped with an airbag system , the collision detection sensor mounting angle is affected by the weight of the vehicle (load condition, etc.), so the collision detection sensor is mounted in a crushable zone that is not affected by this. It is necessary to protect the sensor because such a crushable zone may destroy the sensor before detecting a collision.

[0004]

The conventional sensor mounting device has a structure corresponding to the above-mentioned requirements, and in addition to the mounting bracket for mounting the sensor on the mounting portion, the sensor mounting device has the above-mentioned purpose of protecting the sensor. A cover bracket for covering the sensor in the front direction is separately provided.

Since the mounting angle of the sensor is important as described above, the mounting accuracy of the mounting bracket is ensured by a complicated jig or the like. The fixing method by welding is adopted. However, in such a conventional sensor mounting device, since the mounting bracket and the cover bracket for covering the sensor in the front direction of the sensor are separately provided, the mounting device is complicated and the mounting accuracy of the mounting bracket is high. In order to guarantee that, complicated jigs and the like are required, and it is necessary to carry out troublesome fixing by welding at a plurality of places, and it may take a long time for the manufacturing work as a whole.

As a conventional vehicle collision detection sensor mounting device, Japanese Utility Model Publication No. 2-60055 and Japanese Utility Model Publication No. 5-3.
There are those disclosed in Japanese Patent No. 5509 and Japanese Utility Model Laid-Open No. 35510/1993. With respect to the above, the present invention aims to improve the mounting device of the vehicle collision detection sensor,
Improved sensor mounting, guaranteed sensor mounting angle, sensor protection,
The subject is to reliably obtain the action and effect of reliably transmitting the gravitational acceleration in the front-rear direction.

[0007]

Therefore, the invention according to claim 1 is such that the vertical plate portion and the vertical end portion of the vertical plate portion are connected to each other.
And a vertical slant plate part
The vehicle collision detection sensor that detects a vehicle collision is attached to the pedal bracket to which the pedal is attached .
A mounting device of the collision detecting sensor for a vehicle for mounting Ri, extending the mounting bracket, and the mounting plate portion fixed to the vertical plate portion of the pedal bracket, is connected with laterally to the upper end of the mounting plate portion And an upper collision gravity acceleration transmitting plate portion that transmits the collision gravity acceleration in the front-back direction to the sensor, and a substantially L-shaped plate portion that extends upward and rearward, and is connected to the lower end portion of the mounting plate portion in the lateral direction. Approximately L that extends and then extends downward
A plate portion of the shape, and the lower bump gravitational acceleration transmission plate for transmitting the collision gravitational acceleration in the longitudinal direction in the sensor, are connected to extend laterally rear end portion of the mounting plate portion, the pedal
A plate portion that is inclined along the inclined plate portion Le bracket, lateral is connected and the sensor mounting angle guarantees plate portion fixed to the inclined plate portion of said pedal bracket, the front end portion of the mounting plate portion A plate portion extending to at least a front portion of the sensor and a protective plate portion that protects the sensor, and a configuration portion integrally formed, the mounting plate portion, the upper collision gravity acceleration transmission plate portion, A sensor is arranged in a space surrounded by the lower collision gravity acceleration transmission plate portion, the sensor mounting angle assurance plate portion, and the protection plate portion, and the sensors are arranged between the upper collision gravity acceleration transmission plate portion and the lower collision gravity acceleration transmission plate portion. It was designed to be bonded and fixed to.

According to a second aspect of the present invention, a cover for covering the front of the sensor is fixed to the mounting bracket and fixed to the sensor mounting angle assurance plate portion and the protection plate portion.
According to a third aspect of the present invention, the mounting plate portion is attached to the pedal block.
It was fixed to the vertical plate of the racket by spot welding.

According to a fourth aspect of the present invention, the mounting plate portion is
The pedal bracket is fixed to the vertical plate portion by a mechanical connecting means. According to a fifth aspect of the invention, the sensor mounting angle assurance plate portion is fixed to the inclined plate portion of the pedal bracket by spot welding.

[0010]

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. A vehicle collision detection sensor mounting device according to the present invention includes a vehicle body side configured to include a sensor by a mounting bracket and a vertical plate portion and a vertical inclined plate portion connected to a vertical end of the vertical plate portion. It is a configuration to be attached to a component, and in the present embodiment, it is configured as shown in FIGS.

That is, in these drawings, as a vehicle body side component of a cab-over type truck, a pedal bracket 3 which is disposed in a lower portion inside the cab 1 and to which a brake pedal 2 is attached is adopted. A vertical plate portion 4 is provided at the center of the inside of the bracket body 3A of the pedal bracket 3 and fixed so as to divide the inside of the bracket body 3A into left and right parts. An inclined plate portion 5 is formed to be connected to the end portion on the non-fixed side so as to be inclined vertically so that the distance from the front portion of the cab 1 becomes shorter from the upper portion to the lower portion.

Here, the mounting bracket 6 includes a mounting plate portion 7, an upper collision gravity acceleration transmission plate portion 8, a lower collision gravity acceleration transmission plate portion 9, and a sensor mounting angle assurance plate portion 10.
And a protective plate portion 11. The mounting plate portion 7
Is fixed to the vertical plate portion 4 of the pedal bracket 3 by spot welding.

The mounting plate portion 7 is fixed to the pedal bracket 3 by a nut 12 for fixing a clutch or a brake cylinder.
The vertical plate portion 4 may be fastened and fixed (mechanically coupled). The upper collision gravity acceleration transmission plate portion 8 is connected to the upper end portion of the mounting plate portion 7 and is formed in a substantially L-shape that extends laterally and then extends upward. ) Is transmitted to the sensor 13.

The lower collision gravitational acceleration transmission plate 9 is connected to the lower end of the mounting plate 7 and is formed in a generally L-shape extending laterally and then downward. Similar to the section 8, it has a function of transmitting the front-back G to the sensor 13. The sensor attachment angle assurance plate portion 10 is connected to the rear end portion of the attachment plate portion 7 and extends in the lateral direction, and is formed to be inclined along the inclined plate portion 4 of the pedal bracket 3, and the inclined plate portion 4 is provided. Fixed by spot welding.

The protective plate portion 11 is connected to the front end portion of the mounting plate portion 7 and extends in the lateral direction, and has a function of protecting the sensor 13 and a harness 14 described later. The protective plate 11
Is set at a position away from the bracket body 3A of the pedal bracket 3 so that a predetermined space is formed between them. A space surrounded by the inside of the mounting bracket 6, that is, the mounting plate portion 7, the upper collision gravity acceleration transmission plate portion 8, the lower collision gravity acceleration transmission plate portion 9, the sensor mounting angle assurance plate portion 10, and the protection plate portion 11. The sensor 13 is disposed on the upper part of the vehicle, and the sensor 13 is connected and fixed to the upper collision gravity acceleration transmission plate portion 8 and the lower collision gravity acceleration transmission plate portion 9 by fasteners such as bolts.

The harness 14 pulled out from the fixed sensor 13 passes through the lower side of the sensor 13, is positioned in front of the sensor 13, and extends to the outside. Then, the cover 15 that covers the side of the sensor 13 is fixed to the sensor mounting angle assurance plate portion 10 and the protective plate portion 11 and attached to the mounting bracket 6. That is, the cover 15 includes a plate portion 15A that covers the side of the sensor 13 and two mounting flange portions 15B and 15C that are bent at both ends of the plate portion 15A.
And is arranged on the side of the sensor 13.
The two mounting flanges 15B and 15C are bolts 17,
By means of 18, the ends of the sensor mounting angle assurance plate 10 of the mounting bracket 6 and the ends of the protective plate 11 are fastened.

According to the mounting device for the vehicle collision detection sensor 13 having such a structure, in the structure in which the sensor 13 is mounted on the pedal bracket 3 by the mounting bracket 6, the mounting bracket 6 is mounted on the mounting plate portion 7 and the upper collision gravity acceleration transmission plate. Since the portion 8, the lower collision gravity acceleration transmission plate portion 9, the sensor attachment angle assurance plate portion 10 and the protection plate portion 11 are integrally formed, the following advantages are provided.

That is, the mounting plate portion 7 of the mounting bracket 6 is brought into contact with the vertical plate portion 4 of the pedal bracket 3, and the sensor mounting angle guaranteeing plate portion 10 is brought into contact with the inclined plate portion 5, respectively, and first, the sensor mounting angle guaranteeing plate. The portion 10 is spot-welded to the inclined plate portion 5 to accurately determine the mounting position of the mounting bracket 6, and then the mounting plate portion 7 can be fixed to the vertical plate portion 4 of the pedal bracket 3 by spot welding or mechanical coupling. As a result, the mounting position of the mounting bracket 6 can be set accurately and easily, the mounting angle of the sensor 13 can be surely and easily guaranteed, and a special jig unlike the conventional one is not required.

Further, since the mounting plate portion 7 of the mounting bracket 6 is fixed to the vertical plate portion 4 of the pedal bracket 3 by spot welding or mechanical coupling, the mounting strength can be sufficiently maintained. Further, since the upper collision gravity acceleration transmission plate portion 8 and the lower collision gravity acceleration transmission plate portion 9 are provided and the sensor 13 is coupled thereto, the front and rear G can be reliably transmitted to the sensor 13, and the driving G due to an external force from a person's foot or the like is not transmitted, so that the front-back G detection accuracy is high.

Further, since the protection plate portion 11 is provided, the sensor 13 and the harness 14 can be surely protected at the time of collision, and the sensor 13 and the harness can be protected before the collision is detected in the crushable zone. It is possible to avoid the risk of 14 being destroyed. In particular, by integrally providing the protection plate portion 11 with the mounting bracket 6, the configuration can be simplified and made compact as compared with the case where it is a separate body, which is advantageous in terms of installation space in the vehicle.

Therefore, from the above, the mounting bracket 6 is a single part and has the functions and effects of improving the sensor mounting property, guaranteeing the sensor mounting angle, protecting the sensor and the harness, and reliably transmitting the G in the front-rear direction. Moreover, it has an advantage that it can be manufactured at low cost. As a result, an inexpensive, stable mounting, precise setting of the sensor positions can provide sensor mounting device capable, safer airbag cis
It is possible to obtain a Temu.

[0023]

As described above, according to the first aspect of the present invention, the mounting bracket is a single component, which improves the sensor mounting property, guarantees the sensor mounting angle, protects the sensor and the like, and secures the front-rear direction. It is possible to provide a sensor mounting device that has the advantage of being capable of transmitting gravitational acceleration and has the advantage that it can be manufactured at low cost, and that is inexpensive, allows stable mounting, and sets the sensor position with high accuracy. A highly safe airbag system can be obtained. Well
Also, attach the mounting bracket to the pedal bracket with a stable angle.
Can be fixed to the racket.

According to the second aspect of the present invention, it is possible to protect the side portion of the sensor which is arranged and coupled inside the mounting bracket. According to the inventions according to claims 3 and 4, the mounting strength of the mounting bracket to the vertical plate portion of the pedal bracket can be improved. According to the invention of claim 5,
The sensor attachment angle assurance plate portion can be accurately and firmly fixed to the inclined plate portion of the pedal bracket .

[0025]

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of an embodiment of a vehicle collision detection sensor mounting device according to the present invention, in which (A) is a perspective view;
(B) is a plan view

FIG. 2 is a schematic side view showing a mounting state of a vehicle collision detection sensor in a cab by a mounting device.

FIG. 3 is a detailed front view of the above embodiment.

FIG. 4 is a detailed side view of the above embodiment.

[Explanation of symbols] 2 brake pedal 3 pedal bracket 4 vertical plate portion 5 inclined plate portion 6 mounting bracket 7 mounting plate portion 8 upper collision gravity acceleration transmission plate portion 9 lower collision gravity acceleration transmission plate portion 10 sensor mounting angle assurance plate portion 11 Protective plate 12 Fixing nut 13 Sensor 15 Cover

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60R 21/32

Claims (5)

(57) [Claims] 1. A vertical plate portion and a vertical end portion of the vertical plate portion connected to each other.
And a vertical tilt plate part that is
Kipedaru the pedal bracket mounting and the vehicle collision detection sensor detects a collision of the vehicle mounting bracket
A mounting device for more mounting collision detection sensor for a vehicle, the mounting bracket extends laterally the a mounting plate portion fixed to the vertical plate portion of the pedal bracket, is connected to the upper end of the mounting plate portion And an upper collision gravity acceleration transmitting plate portion that transmits the collision gravity acceleration in the front-back direction to the sensor, and a substantially L-shaped plate portion that extends upward and rearward, and is connected to the lower end portion of the mounting plate portion in the lateral direction. The lower collision gravity acceleration transmission plate portion that is a substantially L-shaped plate portion that extends and then extends downward and that is connected to the rear end portion of the attachment plate portion and the lower collision gravity acceleration transmission plate portion that transmits the collision gravity acceleration in the front-back direction to the sensor. The pedal block extends laterally.
A plate portion that is inclined along the inclined plate portion of the racket, the
A sensor attachment angle assurance plate portion fixed to the inclined plate portion of the pedal bracket, and a plate portion which is connected to the front end portion of the attachment plate portion and extends in the lateral direction, and which covers at least the front of the sensor. A protective plate portion for protection and a component portion including the protective plate portion are integrally formed, and the mounting plate portion, the upper collision gravity acceleration transmission plate portion, the lower collision gravity acceleration transmission plate portion, the sensor mounting angle assurance plate portion and the protective plate. A vehicle collision detection sensor mounting device, characterized in that a sensor is arranged in a space surrounded by a portion and the sensor is coupled and fixed to the upper collision gravity acceleration transmission plate portion and the lower collision gravity acceleration transmission plate portion. . 2. The vehicle collision detection sensor according to claim 1, wherein a cover for covering the front of the sensor is fixedly attached to the mounting bracket to the sensor mounting angle assurance plate portion and the protection plate portion. Mounting device. 3. The mounting apparatus for a vehicle collision detection sensor according to claim 1, wherein the mounting plate portion is fixed to the vertical plate portion of the pedal bracket by spot welding. 4. The mounting device for a vehicle collision detection sensor according to claim 1, wherein the mounting plate portion is fixed to the vertical plate portion of the pedal bracket by mechanical coupling means. 5. The sensor mounting angle assurance plate portion is the pedal.
The mounting device for a vehicle collision detection sensor according to any one of claims 1 to 4, wherein the mounting device is attached to the inclined plate portion of the bracket by spot welding.