JPS5925709B2 - Support device for top-opening door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device that is attached to a top-opening door such as a bonnet of an automobile and is used to fixedly support the door in its open position, and its main purpose is to The objective is to prevent the door from closing inadvertently even if an external force is applied from above or below when the door is opened and fixed.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which a support device S according to the present invention is implemented on a bonnet B of an automobile.

As shown in FIGS. 2 and 3, the support device S includes an outer frame rod 10, a locking piece 11 attached to the outer frame rod 10,
The inner frame rod 2 is fitted into the outer frame rod 10 so as to be slidable in the longitudinal direction.
0, a latch 21 and a pusher 22 attached to the inner frame rod 20.

As clearly shown in FIG. 5, the outer frame rod 10 is a frame having a U-shaped cross section, and has flanges 10d along the longitudinal direction at each end of both side walls 10b and 10c. 10e are integrally bent inward.

Therefore, in this outer frame rod 10, a rectangular first hole 10f through which a part of the locking piece 11 can pass is bored at the right end of the side wall 10b (the side wall located above in FIG. 2). , a rectangular second hole 10g through which a part of the latch 21 can pass and be engaged is provided in a portion of the side wall 10c (the side wall located below in FIG. 2) located to the left of the first hole 10f by a predetermined distance. It is perforated.

In addition, in this outer frame rod 10, the second hole 10g of the flange 10d (the flange located above in FIG. 2)
A first cam piece 10h, which is pushed when a part of the latch 21 engages with a portion located to the right of the required distance, is integrally formed to protrude inwardly, and a flange 10e (downward in FIG. A second cam piece 10i, which is pushed by a part of the latch 21 being engaged with a portion of the second hole 10g of the second hole 10g of the second cam piece 10g, is integrally formed to protrude inward. There is.

The locking piece 11 includes a pair of dog claws 11a, 11b and a pair of small claws 11c, 11d, and is inserted into the side wall 10b side by a pin 12 at a portion corresponding to the first hole 10f of the bottom wall 10a. It is pivoted with the required amount of deviation.

(See FIGS. 2 and 3) The inner frame rods 20 are fitted into the outer frame rod 10 so as to face each other, and like the outer frame rod 10, the inner frame rods 20 have a bottom wall 20a and both side walls 20b, 20c. Both flanges 2
0d and 20e.

(See Figure 5) However, in this inner frame rod 20,
A notch 20f through which a part of the latch 21 can pass is bored at the left end of the side wall 20c (the side wall located below in FIG. 2),
A locking piece 11 is attached to a portion of the side wall 20b (the side wall located above in FIG. 2) located to the right of the notch 20f by a predetermined distance.
A rectangular third hole 20g is bored through which the claws 11a to 11d can pass.

The latch 21 is a lever rotatably attached to the left end of the bottom wall 20a with a pin 23, and the side wall 10 is attached to the tip of the lever.
c, hook 21 that engages only in one direction toward 20c
a is formed, and an operating portion 21b is bent and protruded outward from a rectangular fourth hole 20h provided in the bottom wall 20a at approximately the center thereof.

This latch 21 is operated by the action of a spring 24 in the form of a coiled spring, which has one end locked in a locking hole 21c of the latch 21 and the other end locked in a locking hole 20i provided at the left end of the bottom wall 20a. , when the operating portion 21b engages with the first cam piece 10h, the operating portion 21b is in the locked position (lower side in FIG. 2);
1b engages with the second cam piece 10i, the release position (
2).

The pusher 22 is an L-shaped member, and is fixed to the bottom wall 20a located to the right of the latch 21.
2a is arranged along the longitudinal direction at the center of the bottom wall 20a.

The support device S configured in this way is rotatably attached to the vehicle body A with a metal fitting 13 fixed to the left end of the outer frame rod 10,
Bonnet B is attached to the metal fitting 25 fixed to the right end of the inner frame rod 20.
Next, the operation of the support device S configured as described above will be explained. When the bonnet B covers the opening of the vehicle body A (when the bonnet B is closed), , the support device S is in the state shown in FIG.

By the way, when the bonnet B is opened upward from the vehicle body A, the inner frame rod 20 in the support device S slides upward within the outer frame rod 10 and extends from the outer frame rod 10.

At this time, the latch 21 moves while being pressed against the side wall 20b by the action of the spring 24, so the latch 21 and the second hole 10g do not engage with each other.

After the latch 21 passes through the second hole 10g, its operating portion 21b abuts against the first cam piece 10h and the side wall 20
When the latch 21 is pushed toward the c side (locked position), the latch 21 rotates to the opposite side past the rotational dead center, so the hook 21a of the latch 21 passes through the notch 20f by the action of the spring 24 and is attached to the side wall 10c. Press directly against.

Further, at this time, the first hole 10f and the third hole 20g overlap, and at the same time, the pushing part 22a of the pusher 22 is moved to the locking piece 11.
The large kite 11a of the locking piece 11 contacts the large kite 11b and rotates the locking piece 11 counterclockwise by a predetermined amount.

(See the imaginary line in FIG. 2) After that, when the bonnet B is lowered downward by its own weight, the side wall 20b located near the right side of the third hole 20g is held by the large kite 11a and small claw 11c of the locking piece 11. It has been accepted, and the inner frame rod 20 is downward (left side in the illustration)
Movement to is regulated.

Also, at this time, the second hole 10g of the outer frame rod 10 and the notch 20f of the inner frame rod 20 overlap, and the hook 21a of the latch 21
is inserted into and engaged with the second hole 10g by the action of the spring 24, so that the movement of the inner frame rod 20 upward (to the right in the figure) is restricted.

Therefore, in this state, an upward external force acts on the bonnet l-B, and the force on the lever is applied to the hook 21a of the latch 21.
Even if a downward external force were to act on the bonnet B, this force would be absorbed by the pair of large and small pawls 11a, 11c of the locking piece 11 and the third hole 20g. Since the bonnet B is received by the engagement, the bonnet B is reliably supported by the support device S in the predetermined open position.

Further, when you want to close the bonnet B, if you manually push the operating part 21b of the latch 21 toward the side wall 20b, the latch 21 rotates beyond its rotational dead center, and the action of the spring 24 causes the side wall 20b to be opened (released). position), the hook 21a of the latch 21 is released from the second hole 10g.

Therefore, if the bonnet B is moved upward in this state, the first hole 10f and the third hole 20g overlap, and at the same time, the pushing part 22a of the pusher 22 comes into contact with the small pawl 11d of the locking piece 11. Since the locking piece 11 is rotated counterclockwise by a predetermined amount, the small pawl 11c of the locking piece 11 projects outward from the third hole 20g.

(At this time, the latch 21 is again pushed toward the side wall 10c by the first cam piece 10h.

) Thereafter, when the bonnet B is moved downward by its own weight, the small pawl 11c of the locking piece 11 is rotated counterclockwise by the side wall 20b of the inner frame rod 20, so that the locking piece 11 is moved between the outer frame rod 10 and the inner frame rod. The bonnet B is housed within the frame rod 20, the inner frame rod 20 is housed within the outer frame rod 10, and the bonnet B is closed.

(At this time, the hook 21a of the latch 21 engages with the second hole 10g, but this engagement is released by moving the inner frame rod 20 downward (to the left in the figure).

) Also, when the bonnet B moves downward, the operating portion 21b of the latch 21 is pushed toward the side wall 20b (released position) by the second cam piece 10i, so the latch 21 moves beyond the rotational dead center to the original position. and is pressed against the side wall 20b by the action of the spring 24.

Therefore, when the bonnet B is subsequently opened, the above-described operation is repeated.

In the above embodiment, an example was explained in which the outer frame rod 10 was pivotally connected to the vehicle body A and the inner frame rod 20 was pivotally connected to the bonnet B. 2
0 is pivotally mounted on the vehicle body A, the same effect Φ as in the above embodiment can be expected.

Further, in the above embodiment, an example was described in which the support device S was implemented on the bonnet B of an automobile, but the support device according to the present invention can also be implemented in other top-opening doors.

As detailed above, in the present invention, as illustrated in the above embodiment, when the door is opened, the inner frame rod 20 (or the outer frame rod 10) is moved by the engagement between the inner frame rod 20 and the locking piece 11. When movement inward (downward) is restricted, the latch 21 attached to the inner frame rod 20 engages with a part of the outer frame rod 10, causing the inner frame rod 20 (or outer frame rod 10) to move outward. (upward) movement of the latch 21, and when the door is closed, the outer frame rod 1 of the latch 21 is released before the engagement between the inner frame rod 20 and the locking piece 11 is released.
Since the engagement with 0 is released, the door can be firmly and fixedly supported in the open position even if a strong wind blows from above or below when the door is opened.

Further, in the present invention, when the pusher 22 engages with the locking piece 11, the latch 21 is moved to its locking position by engagement with the first cam piece 10h, and the inner frame rod 20 and the locking piece When the engagement with 11 is released and the inner frame rod 20 is housed inside the outer frame rod 10, the latch 21 is disengaged from the second cam piece 10i.
Since the latch is moved to the release position by engagement with the latch, there is an advantage that the latch is always automatically locked to the outer frame rod when the door is opened.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example in which the support device according to the present invention is implemented on the bonnet of an automobile, FIG. 2 is an enlarged front view of the support device shown in FIG. 1, FIG. 3 is a plan view of the same, and FIG. The figure is a front view showing a locked state of the support device, and FIG. 5 is an exploded perspective view of essential parts of the support device. Explanation of codes, 10... Outer frame rod, 10h...
・First cam piece, 10i...Second cam piece, 11・
...Locking piece, 20...Inner frame rod, 21...
...-Latch, 22... Pusher, A...
...Vehicle body (fixed side), B...Bonnet (door that opens from the top).

Claims (1)

[Claims] 1 Inner frame rods that are pivotably pivoted to the door side or fixed side of a top-opening door such as the bonnet of an automobile, and inner frame bars that are pivotably pivoted to the fixed side or door side and that are an outer frame rod that is slidably accommodated in the longitudinal direction; a locking piece pivotally connected to the free end of the outer frame rod; and a locking piece pivoted to the free end of the inner frame rod with respect to the rotation center of the locking piece. and a pusher element fixed in a biased manner, so that when the door is opened, when the inner frame rod or the outer frame rod extends from the outer frame rod or the inner frame rod, the locking piece engages the pusher. When it rotates due to engagement with the mover and projects outward through the overlapping portion of both frame rods, and then moves the inner frame rod or outer frame rod slightly inward, the locking piece and When the engagement with the pusher is released, the inner frame rod or the outer frame rod is prevented from moving inward by the engagement between the inner frame rod and the locking piece, and when the door is closed, the inner frame rod is Alternatively, when the outer frame rod is slightly moved outward, the engagement between the locking piece and the inner frame rod is released, and the locking piece is rotated again by engagement with the pusher. In the support device for a top-opening door, the free end of the inner frame rod is accommodated inwardly from the overlapping portion of the both frame rods so that the inner frame rod or the outer frame rod is allowed to move inward. A latch that is selectively and elastically positioned and fixed in a lock position or a release position is attached to the part, and the engagement of the inner frame rod and the locking piece restricts inward movement of the inner frame rod or the outer frame rod. When the latch is in the locked position, the latch engages with a part of the outer frame rod to restrict outward movement of the inner frame rod or the outer frame rod, and also locks the inner frame rod and the locking piece. When the engagement of the latch is released, the engagement of the latch with the outer frame rod is released prior to the disengagement of the latch, and a first part that can be engaged with a part of the outer frame rod with the operating part of the latch.
and a second cam piece, and when the pusher engages the locking piece, the latch is moved to its lock position by engagement with the first cam piece, and the inner frame rod and the When the engagement on the locking piece is released and the inner frame rod is housed inside the outer frame rod, the latch is moved to its release position by engagement with the second cam piece. A support device characterized by: