JPH0568753U - Car airbag support device - Google Patents

Abstract

(57) [Abstract] [Purpose] When idling, vibration due to resonance of the steering wheel is reduced, cost and weight increase are suppressed, and restrictions on installation space are avoided. [Structure] A driver-side pillar 3 and a passenger-side pillar 3 of an automobile 1 are joined by a lateral reinforcing member 2, and the reinforcing member 2
A mounting bracket 16 for the airbag 12 is provided on the passenger side of the. Then, the passenger side airbag 12 is attached to the attachment bracket via the elastic members 19 and 20. With this configuration, the elastic members 19 and 20 cause the airbag 12 to float and function as a damper mass, and it is possible to reduce vibration due to resonance of the steering wheel 5 during idling. ..

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automobile airbag support device that also has a function as a damper that reduces the vibration transmitted to the steering wheel during idling.

[0002]

[Prior Art]

 In some automobiles, a driver side pillar and a passenger side pillar (both front pillars) are connected by a reinforcing member pipe to increase the mounting strength of the steering column, and the steering column is attached to this pipe. This will be described below. In FIG. 4, 1 is an automobile, 2 is a pipe for connecting a driver side pillar (not shown) and a passenger side pillar 3 to each other. A steering column 4 is attached to the pipe 2, and a steering device 6 including a steering wheel 5 and a steering column 4 is firmly held.

However, if the steering column 4 is simply attached to the pipe 2 as described above, the mounting rigidity of the steering column 4 is not sufficient, and the steering wheel 5 vibrates during idling to give an occupant a discomfort. Therefore, conventionally, the reinforcing plate 8 is attached between the mounting portion of the steering column 4 of the pipe 2 and the cowl portion 7, and the reinforcing pipe 10 is interposed between the pipe 2 and the floor 9 ( (Fig. 4 shows both the reinforcing plate 8 and the reinforcing pipe 10), and the resonance frequency is set higher than the idling frequency (the resonance point is moved), so that the resonance of the steering wheel 5 at idling is generated. To reduce the vibration caused by.

In addition to the above, a steering damper (not shown) is mounted inside the horn pad 11 provided on the steering wheel 5 to reduce the vibration level during idling and to reduce the vibration caused by the resonance of the steering wheel 5. Some are trying to reduce.

On the other hand, in the case of a frontal collision of a vehicle, in order to protect the vehicle from a secondary disaster in which the vehicle collides with the instrument panel and the steering wheel 5, the front of the vehicle, for example, the passenger seat side, There is an instrument panel on the driver side and an airbag inside the horn pad of the steering wheel on the driver's side. The attachment of the passenger side airbag with respect to this airbag will be described below with reference to FIGS. 5 and 6, and the passenger side airbag 12 is attached to the airbag mounting box 13. In the box 13, a bracket 14 provided on the bottom is fixed to a bracket 15 provided on the pipe 2 by a bolt 16.

As a radiator support structure for an automobile, there is one disclosed in Japanese Patent Application Laid-Open No. 58-36722. What is disclosed in this publication is one in which the upper and lower parts of the radiator are supported by rubber and the radiator functions as a dynamic damper. Further, as a vehicle battery support structure, there is one disclosed in Japanese Examined Patent Publication No. 63-3784. The one disclosed in this publication is a mounting table on which a battery is mounted and fixed, and a part of the mounting table is attached to a body panel via a spring member.

[0007]

[Problems to be solved by the device]

 In the conventional technique described above, in order to reduce the vibration due to the resonance of the steering wheel, the pipe and the cowl part are connected by a reinforcing plate, and the reinforcing pipe is interposed between the pipe and the floor. In addition, although a steering damper was installed inside the horn pad provided on the steering wheel, installing a reinforcing plate or a reinforcing pipe or installing a steering damper would increase the cost. There were problems such as the invitation, and the reinforcing plates and pipes increased the weight. Further, providing the dynamic damper in the horn pad causes a lot of restrictions on the mounting space.

The radiator support structure for an automobile disclosed in Japanese Patent Application Laid-Open No. 58-36722 is a structure in which the radiator is supported by a rubber and functions as a dynamic damper. As described above, there is a problem that the structure is complicated because the airbag is not simply attached to the pipe via the elastic member. Further, the battery supporting structure for an automobile disclosed in Japanese Examined Patent Publication No. 63-3784 is one in which the battery is attached to the body panel via a spring member, and the entire battery is not a dynamic damper.

The present invention has been made to solve the above-mentioned conventional problems. An air bag is attached to a reinforcing member and operates as a steering damper, so that vibration due to resonance of the steering wheel at the time of idling is generated. It is an object of the present invention to provide an automobile airbag support device that reduces the cost, suppresses the cost increase and the weight increase, and avoids the restrictions on the mounting space.

[0010]

[Means for Solving the Problems]

 As a means for solving the above problems, the present invention connects a driver side pillar and a passenger side pillar of an automobile with a lateral reinforcing member and attaches an air bag mounting bracket to the passenger side of the reinforcing member. It is characterized in that the passenger side airbag is attached to the mounting bracket via an elastic member.

[0011]

[Action]

 According to the present invention, an airbag mounting bracket is provided on the passenger side of the reinforcing member connected to the driver pillar and the passenger pillar in this way, and the passenger side airbag is attached to the mounting bracket through the elastic member. Therefore, the elastic member causes the air bag to float and functions as a damper mass. If the attached airbag is set to resonate at 20 to 30 hertz, it will function as a dynamic damper, and vibration at the time of idling due to resonance of the steering wheel can be reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. 1 with the same members as those in FIGS. 1 is an automobile and 2 is a pipe which is a reinforcing member. The pipe 2 is hung and fixed between a driver side pillar and a passenger side pillar 3, and a steering column 4 is attached to the pipe 2 to hold a steering wheel 5 of a steering device 6.

A mounting bracket 16 for mounting the airbag 12 is fixed to the passenger seat side of the pipe 2. The mounting bracket 16 comprises a horizontal bracket 17 having a U-shape parallel to the pipe 2, and a vertical bracket 18 having a U-shape that connects the middle portion of the horizontal bracket 17 and the pipe 2 to each other. The bag 12 can be supported. Then, rubber members 19 and 20 as elastic members are attached to both inner sides of the horizontal bracket 17 and a portion corresponding to the bottom of the vertical bracket 17, and the horizontal bracket 17 and The passenger's airbag 12 is attached to the vertical bracket 18.

The passenger side airbag 12 vibrates while being used as a dynamic damper, but this vibration is small compared to the impact energy with which the airbag 12 is operated, and It does not adversely affect the operation of 12.

The operation of this embodiment described above will be described. In this embodiment, a horizontal bracket 17 and a vertical bracket 18 which are airbag mounting brackets 16 are provided on the passenger seat side of the pipe 2 connected to the driver's seat pillar 3 and the passenger seat pillar 3 as described above. Since the passenger airbag 12 is attached to the bracket 17 and the vertical bracket 18 via the rubber members 19 and 20, the rubber member 19 and 20 make the airbag 12 in a floating state to function as a damper mass. Will have.

Therefore, if the attached airbag 12 is set so as to resonate at 20 hertz to 30 hertz, it functions as a dynamic damper, and it is possible to reduce the vibration of the steering wheel 5 during idling. Become.

[0017]

[Effect of the device]

 As described above, according to the present invention, the airbag mounting bracket is provided on the passenger side of the reinforcing member coupled to the driver pillar and the passenger pillar, and the passenger bracket air bag is provided through the elastic member on the mounting bracket. Since the bag is attached, the elastic member causes the airbag to float and acts as a damper mass. Therefore, if the attached airbag is set to resonate at 20 to 30 hertz, it will function as a dynamic damper, and vibration due to resonance of the steering wheel during idling can be reduced. As a result, it is not necessary to attach a reinforcing plate, a reinforcing pipe, and a steering ring damper for reducing the vibration of the steering wheel, and it is possible to suppress an increase in cost and weight.

Further, since the dynamic damper is not provided inside the horn pad, there is no restriction on the mounting space, and the resonance frequency can be set easily. Furthermore, since a heavy airbag can be used as a damper mass, the effect of reducing vibration is great.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of the airbag attached to the pipe of FIG.

FIG. 3 is a side view of that of FIG.

FIG. 4 is a perspective view showing a conventional steering reinforcing device.

FIG. 5 is a side view showing the attachment of a conventional passenger side airbag.

FIG. 6 is a front view of that of FIG.

[Explanation of symbols]

 1 Automotive 2 Pipe 3 Pillar 12 Airbag 17 Horizontal bracket 18 Vertical bracket 19 Rubber member 20 Rubber member

Claims (1)

[Scope of utility model registration request] 1. A driver side pillar and a passenger side pillar of an automobile are connected by a lateral reinforcing member, an airbag mounting bracket is provided on the passenger side of the reinforcing member, and an elastic member is provided on the mounting bracket. An airbag supporting device for an automobile, characterized in that a passenger's side airbag is attached through the airbag.