JP2528272Y2 - Instrument panel frame mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a frame mounting structure for an instrument panel of a vehicle.

(Prior Art) Conventionally, a main frame extending in the vehicle width direction is provided between left and right front pillars, and an instrument panel and a steering column are supported on the main frame. A configuration in which the stays are connected by stays extending in the vertical direction is known (see Japanese Patent Laid-Open No. 57-4466).

By the way, in order to protect the occupant's knee at the time of a frontal collision of the vehicle in recent years, the installation of a knee protector may be required depending on the specification. The knee protector is generally made of a curved metal plate, and is attached to the main frame in the instrument panel.

However, when a load is applied to the knee protector at the time of a frontal collision of the vehicle, a force is applied to the main frame on which the knee protector is mounted to push upward, thereby connecting the central portion of the main frame and the vehicle body floor. There is a problem that stress concentrates on the lower part of the stay and the part is sheared.

(Purpose of the present invention) Accordingly, the present invention aims to improve the mounting strength of the stay without increasing the thickness of the stay by dispersing the stress when the upward pushing force acts on the main frame. And

(Structure of the Invention) The frame mounting structure of the instrument panel according to the present invention includes a main frame that supports the instrument panel body, extends in the vehicle width direction, and has both ends fixed to the vehicle body side,
In an instrument panel frame mounting structure having an upper portion connected to an intermediate portion of the main frame and a lower portion connected to the vehicle body floor at two positions in the front-rear direction, the upper portion is connected to the main frame, A lower frame is provided at a connection position on the rear side of the stay with respect to the vehicle body floor, and a subframe connected to the body floor together with the stay is provided on a side of the stay.

(Effects of the Invention) Since a knee protector and a steering column are generally attached to the main frame, a load is applied to the knee protector and the steering column during a head-on collision of the vehicle, so that the force for pushing up the main frame upwards. At the same time, a rotational force is applied to the front and upward centering on the support point of the lower part of the steering column to the vehicle body, and the lower part of the stay connecting the middle part of the main frame and the vehicle body floor, especially the lower part of the stay, is on the vehicle body floor. On the other hand, when the connection is made at two places in the front-rear direction, stress concentrates on the connection position on the rear side, but according to the present invention,
Since the lower portion of the sub-frame is connected to the vehicle body floor together with the stay at a connection position on the rear side of the stay with respect to the vehicle body floor, stress applied to the stay can be dispersed. It is possible to prevent the stay from being sheared and increase the support rigidity of the main frame without increasing the height.

(Example) Hereinafter, an example of the present invention is described with reference to drawings.

1 to 3, reference numeral 1 denotes a pipe-shaped main frame that supports an instrument panel main body (not shown), extends in the left-right direction (vehicle width direction) and is installed substantially horizontally in a cab. , Brackets 5a, 5b on both ends
Are welded, and both ends of the main frame 1 are fixed to the cowl side panel 4 extending forward from the front door opening edge 3 below the front pillar 2 via brackets 5a and 5b. At a middle portion of the main frame 1, a pair of lower ends are fastened to the raised portion 7 of the vehicle body floor 6 by bolts 15 and 16 at two front and rear portions on a raised portion (tunnel) 7 at the center of the vehicle body floor 6 and extend upward. The upper ends of the stays 8a and 8b are connected by welding. FIGS. 1 and 3 show the main frame 1 at an intermediate position between the driver's seat side end and the upper end of the stay 8a.
A bracket 10 for supporting the steering column, whose axis 9 is shown only in the figure, on the main frame 1 is fixed. A pair of knee protectors 11a and 11b is attached to the main frame 1 with a steering column support bracket 10 interposed therebetween. Reference numeral 12 denotes a sub-frame which connects the main frame 1 and a lower portion of the stay 8a on the side of the stay 8a.
Main frame 1 at an intermediate position between
As shown in FIG. 1, the lower ends of two bolts 1 connecting the stay 8a to the raised portion 7 of the vehicle body floor 6 as shown in FIG.
The bolt 16 on the rear side of the bolts 5 and 16 is bolted to the raised portion 7 of the vehicle body floor 6 together with the stay 8a. In FIG. 3, reference numeral 13 denotes a dash lower panel, and reference numeral 14 denotes a front window glass.

The above is the frame mounting structure of the instrument panel according to the present invention. In the above configuration, the main frame 1 and the lower portion of the stay 8a are connected by the sub-frame 12 on the side of the stay 8a. When a load is applied to the knee protectors 11a and 11b at the time of a collision and a force for pushing the knee protectors 11a and 11b upward is applied to the main frame 1, concentration of stress on the stay 8a can be avoided. In particular, the lower end of the sub-frame 12
Since the rear bolt 16 of the two bolts 15 and 16 connecting the upper portion 8a to the raised portion 7 of the vehicle body floor 6 at the front and rear is bolted to the raised portion 7 together with the stay 8a by a bolt 16 on the rear side, a frontal collision of the vehicle occurs. Sometimes knee protectors 11a, 11b
When a load is applied to the steering wheel, the main frame 1 can be pushed upward and the main frame 1 can be rotated forward and upward about a support point for the vehicle body below the steering column. 1 can sufficiently secure the support rigidity. Therefore, the mounting strength of the main frame 1 can be improved without increasing the thickness of the stays 8a and 8b.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cab provided with an instrument panel frame mounting structure according to the present invention, FIG. 2 is a front view of main parts, and FIG. 3 is a side view of main parts. 1 ... main frame 2 ... front pillar 4 ... cowl side panel 6 ... body floor, 8a, 8b ... stay 10 ... steering column support brackets 11a, 11b ... knee protector 12 ... sub-frame

Claims (1)

(57) [Scope of request for utility model registration] 1. A main frame, which extends in the vehicle width direction while supporting an instrument panel main body, and has both ends fixed to side portions of a vehicle body, an upper portion connected to an intermediate portion of the main frame, and a lower portion connected to a vehicle body floor. On the other hand, in an instrument panel frame mounting structure including a stay connected at two places in the front-rear direction, an upper portion is connected to the main frame, and a lower portion is connected to the body floor together with the stay at a connection position on a rear side with respect to a vehicle body floor. A frame mounting structure for an instrument panel, wherein a subframe connected to the vehicle body floor is provided on a side of the stay.