JPH0436974Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a door rigidity reinforcement device that is attached to a side opening of a vehicle, and in particular, a door rigidity reinforcement device that can cope with the impact that the vehicle receives from the front and rear directions. Regarding.

(Prior Art) A vehicle receives a large load from the front during a collision or the like.
At this time, the large load is transmitted to the left and right front pillars and the cowl top and darts panels that connect them. Then, these members may be pushed backward and may move. As a way to prevent or reduce the occurrence of such member fluctuations, the rigidity of the door between the front pillar and the center pillar in the longitudinal direction of the vehicle is strengthened.
The load is distributed through the door to the center pillar and other components behind it.

(Problem that the invention attempts to solve) However, as shown in Figure 6, the conventional door
An impact bar 4 is attached to the outer panel 1, the inner panel 2, and the end of the space 3 inside the door, which are made of sheet metal, to provide rigidity in the longitudinal direction of the vehicle (perpendicular to the paper surface).
This is ensured by In this way, the reason why a longitudinal rigidity reinforcing member is not installed in the central part of the space 3 where it is easy to strengthen the rigidity is that the door glass 5 enters and exits in this part, and the sash and regulator that guide it occupy the space. This is because there are many cases.
An object of the present invention is to provide a door rigidity reinforcing device that can timely arrange a rigid bar in a space long in the front and back direction inside the door.

(Means for Solving the Problems) The present invention provides a front rigid wall that is opened and closed in the width direction of the vehicle and is made up of the front and rear walls of the inner panel and each reinforcing member through a long space in the longitudinal direction of the vehicle. A rigid bar that is pivotally connected via a pin to the door body in which the member and the rear rigid wall member are disposed, and the front and rear rigid wall members, and whose cross section along the vehicle width direction has a closed cross-sectional shape. One end is locked to the rigid bar side and the other end is locked to the door body side, and the pin is always rotated from the standby position to the standby position without interfering with the door glass that exists in the long space in the longitudinal direction due to its elastic force. a spring member that biases the rigid bar to rotate toward the strengthened position, and a spring member that restricts the rotational position of the rigid bar toward the strengthened position;
a stopper piece whose one end is fixed to the rigid bar side and whose tip end is formed to abut against the body side; and a rigid bar control means for rotationally displacing the rigid bar to the reinforced position by the elastic force when an impact force of a predetermined value or more is applied to the vehicle body. There is.

(Function) When an impact force of more than a specified value is applied to the vehicle body,
Since the rigid bar control means rotationally displaces the rigid bar from the standby position to the reinforced position and fits between both rigid wall members, this rigid bar can strengthen the rigidity of the door in the front-rear direction.

(Example) FIG. 1 shows a door rigidity reinforcing device as an example of the present invention. This door rigidity reinforcement device is applied to the outer panel 11, inner panel 12, and door sash 1 of the door 10 that is opened and closed in the vehicle width direction Y.
3, a rigid bar 15 accommodated in an internal space 14 extending in the longitudinal direction of the vehicle within the door body, and a rotating means 1 connected to the rigid bar.
6 (see Figure 3).

Note that the left front door 10 is shown in FIGS. 1 to 3.
However, the door rigidity reinforcing device to which the present invention is applied can be similarly attached to other doors (front right, left and right rear doors) that are not shown.

The opposing peripheral edges of the inner panel 12 are in contact with both edges and the lower edge of the outer panel 11 in the vehicle longitudinal direction X in FIGS. 1 and 2, and these peripheral edges on the inner panel side are connected to A circumferential edge and a folded piece 111 extending from this in a U-shaped cross section.
The two are sandwiched together, integrating the two. The inner panel 12 includes an inward flat plate portion 121 facing the inside of the vehicle;
The front and rear walls 12 are bent at a substantially right angle from their surroundings.
2, 123, and a downward wall portion 124. Incidentally, a peripheral edge portion which is held on the outer panel 11 side is bent and extends from the edge of each of the front, rear, and downward wall portions.

As shown in FIG. 3, the front wall portion 122 faces the rear facing surface 171 of the front pillar 17 of the vehicle and is formed in a substantially vertical surface. A reinforcing member 18 made of a relatively thick sheet metal is welded to the back surface of the front wall portion 122 at a substantially intermediate position in the vertical direction. The reinforcing member 18 is connected to the front rigid wall member A together with the front wall portion 122.
is formed. In particular, the reinforcing member 18 is
A protruding surface 182 is located at a predetermined distance rearward from 2.
A stepped portion 181 is formed. Front wall part 1
The rotating means 16 is housed in a portion on the back side of the holder 22 from which the stepped portion 181 is removed.

The rear wall portion 123 faces the front surface 191 of the center pillar 19 of the vehicle and is formed into a substantially vertical surface. A relatively thick reinforcing member 20 made of sheet metal is welded to the back surface of the rear wall portion 123 at a substantially intermediate position in the vertical direction. The reinforcing member 20 forms a rear rigid wall member B together with the rear wall portion 123. In particular, the reinforcing member 20 has a first stepped portion 201 located at a predetermined distance in front of the rear wall portion, and a second stepped portion 202 located further forward at a predetermined distance. 1st
A door sash 13 is welded to the stepped portion 201,
A second stepped portion 202 having a projecting surface 203 projects further forward from the door sash. The rotation means 16 is attached to the reinforcing member 20 and the rear wall portion 123.
is accommodated.

The door sash 13 has a well-known structure for vertically guiding the door glass 21, and here, as shown in FIG. The cut is made at a higher position than the vertical position of.

The rigid bar 15 housed in the internal space 14 is made of a plurality of thick sheet metals and is formed into a bar shape with a closed cross section. Pins 33 and 34 protrude from opposing ends 151 and 152 (see FIG. 4), respectively, and are pivotally connected to the front and rear rigid wall members A and B via these pins. It should be noted that the front and rear opposing ends 151 and 152 are arranged so that the rigid bar 15 fits between both protruding surfaces 182 and 203 when in the later-described reinforced position, which is the position indicated by the two-dot chain line in FIG. The length in the front-rear direction X near the rotation end is set to be slightly smaller than the length between both protruding surfaces 182 and 183.

The rotating means 16 rotates the rigid bar 15 approximately 90 degrees at a suitable time, and forcibly moves the rigid bar 15 from the standby position indicated by the solid line in FIG. 1 to the strengthened position indicated by the two-dot chain line. That is, as shown in FIGS. 3 and 4, the rigid bar 15 has spiral springs 23 and 24 attached to a pair of integral pins 33 and 34, respectively, so that the rigid bar 15 is always urged to rotate toward the reinforced position. Ru. Note that the rotational force generated by this spring is strong enough to break and rotate the door glass 21 even if there is a door glass 21 in the interior space 14. In order to easily destroy the door glass 21 in such a case, a claw 39 as shown by the two-dot chain line in FIG.
A plurality of them may be formed.

Further, of both spiral springs, the front spiral spring 23 is housed in a space adjacent to the stepped portion 181 of the reinforcing member 18 , and the rear spiral spring 24 is housed in the space next to the stepped portion 181 of the reinforcing member 20 . It is accommodated in the inner space that is formed.

Furthermore, a pair of curved stopper pieces 25 and 26 are attached to the rigid bar 15, respectively. That is,
One stopper piece 25 is directly welded to the front opposing end 151, and the other stopper piece 26 is welded to the pin 34, and together they restrict the rotational position of the rigid bar 15.

Each stopper piece 25, 26 is formed with a locking hole 27, 28 penetrating in the front-rear direction It's rushing in. Note that when this pin is released from the lock, the tip of each stopper piece 25, 26 rotates together with the rigid bar, comes into contact with the stopper surface 183, 204 of each reinforcing member 18, 20, and moves the rigid bar 15 to the reinforced position. Hold.

The solenoids 29 and 30 are both reinforcing members 18 and 2.
0, and as shown in FIG.
The drive current I is supplied in a more timely manner. A controller serving as rigid bar control means outputs a drive current I when it receives a detection signal greater than a predetermined level, such as at the time of a vehicle collision, from a G sensor 32 attached to the front end of the vehicle body. Note that in place of the G sensor 32, a limit switch may be used which is attached to a bumper stay (not shown) and can detect the displacement at the time of a collision and output a detection signal, or a strain meter attached to the bumper may be used. good.

Suppose that a vehicle equipped with such a door stiffening device crashes. At this time, if the controller 31 determines that the impact force is above a predetermined level based on the detection signal of the G sensor 32, the solenoid 2
Activate 9,30. As a result, both the stopper pins 291 and 301 are operated to retreat, and the spiral spring 2
The rigid bar 15 rotates due to the elastic force of 3 and 24,
At this time, if the door glass 21 is in the interior space 14, it is broken and held in a strengthened position determined by the action of the stopper pieces 25, 26 and the stopper surfaces 183, 204. When the front pillar 17 moves rearward, the door comes into contact with the center pillar 19, is compressed by both pillars, and receives a compressive force in the longitudinal direction X.
Then, the rigid bar 15 has its front and rear opposite ends 15
1,152 are pressed by both protruding surfaces 182,203. At this time, the rigid bar 15 having sufficient rigidity in the longitudinal direction X prevents the door 10 from being significantly deformed, and the load received by the front pillar 17 is distributed to the center pillar 19 and its rear member side. As a result, the amount of rearward movement of the front pillar 17 is small, the amount of movement of the cowl top portion is also small, and space around the driver's seat is secured.

In the above, the rotation means 16 is the spiral spring 2
Although the rigid bar 15 is rotated by the elastic force of No. 3, instead of this, a rotation means 16a may be formed as shown in FIG. A locking pin 37 may be projected at a position shifted from the pin 34 on the rear opposing end 152 of the rigid bar 15, and the solenoid 38 may operate the locking pin 37. In this case, the shaft 35, which is retracted by the solenoid 38, has a long groove 36 formed at its end in which a locking pin 37 is engaged. Thereby, in the event of a vehicle collision, the solenoid 38 can directly pull and hold the rigid bar 15 from the standby position to the reinforced position.

(Effects of the invention) According to the invention, the interior space of the door can be used effectively under normal conditions, and when an impact force of more than a predetermined value is applied to the vehicle body, the rigid bar that has reached the reinforced position is connected to both rigid wall members. This rigid bar can sufficiently strengthen the rigidity of the door in the front-rear direction, preventing the space around the driver's seat from being reduced and improving passenger safety. can be improved.

[Brief explanation of drawings]

Fig. 1 is a rear sectional view of a door equipped with a door rigidity reinforcing device as an embodiment of the present invention, Fig. 2 is a front view of the same door, and Fig. 3 is a sectional view taken along the - line in Fig. 2; Fig. 4 is an enlarged perspective view of the main parts of the rigid bar and rotation means used in the above device, Fig. 5 is a side view of the rotation means used in a door rigidity reinforcing device as another embodiment of the present invention, and Fig. 6 7 shows a rear sectional view of a conventional door, and FIG. 7 shows a solenoid drive circuit. 11...Outer panel, 12...Inner panel, 13...Door sash, 14...Interior space,
15... Rigid bar, 151, 152... Front and rear opposing ends, 16... Rotating means, 18... Reinforcing member,
20... Reinforcement member, 122... Front wall portion, 123...
...Rear wall, X...front and back direction, Y...vehicle width direction, 2
1... Door glass, 23, 24... Spiral spring, 2
5, 26... Stopper piece, 29, 30... Solenoid, 31... Controller, 32... G sensor, 33, 34... Pin.

Claims (1)

[Scope of utility model registration request] A door body that opens and closes in the vehicle width direction of the vehicle and is provided with a front rigid wall member and a rear rigid wall member that are formed of the front and rear walls of an inner panel and each reinforcing member through a long space in the longitudinal direction of the vehicle. and a rigid bar which is pivotally connected via a pin across both the front and rear rigid wall members, and whose cross section along the vehicle width direction forms a closed cross-sectional shape, one end of which is connected to the rigid bar, and the other end of which is connected to the rigid bar. The rigid bar is rotated from a standby position where it is locked to the door body side and does not interfere with the door glass existing in the longitudinally long space due to its elastic force to a strengthened position where it rotates around the pin from the standby position. In order to restrict the rotational position of the spring member and the rigid bar toward the strengthened position, one end of the spring member is fixed to the rigid bar, and its tip is formed to abut against the main body. A stopper piece is disposed in the space and restrains the rigid bar in the standby position against the elastic force of the spring member during normal use, but when an impact force of a predetermined value or more is applied to the vehicle body, the rigid bar is and a rigid bar control means for rotationally displacing the bar to the reinforced position by the elastic force.