JPS6010937Y2 - Open/close lid stay device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stay device for opening/closing lids of automobile bonnets, trunk lids, etc.

Specifically, in an opening/closing lid whose one end is rotatably connected to the vehicle body via a hinge member and whose other end opens upward, the opening/closing lid is provided between the opening/closing lid and the vehicle body to enable the opening/closing lid to be opened and closed, and to open the lid. The stay device that supports the
An object of the present invention is to provide a stay device for an opening/closing lid that can be opened/closed with a single-touch operation by simply opening and closing the lid, securely supporting the opening/closing lid in the open position, and enabling smooth opening/closing operations. It is.

In order to achieve the above object, this invention connects one end of two arms in a bendable manner via a connecting pin, and the other end of one arm is attached to the opening/closing lid, and the other end of the other arm is attached to the vehicle body. The locking pin is rotatably attached to the arm, and a locking pin biased by a spring is provided on the other arm side at a fixed position from the arm connection side end of one arm, while the locking pin is attached to the other arm. Two engaging cam grooves are arranged in parallel, and when the locking pin is engaged with the closing side of the cam grooves, the pivot points of both arms are connected and the locking release side is established from the connecting line, When the locking state is maintained by the spring and the locking pin is engaged with the cam groove on the opening side, the connecting pins of both arms are on the locking and holding side from the connecting line connecting the pivot points of the arms, and the connection is made. It is an object of the present invention to provide a stay device for an opening/closing lid which is designed to achieve a safety lock by preventing the arms from rotating in the closing direction unless the pin exceeds the points of interest of both arms.

This invention will be explained in detail below with reference to embodiments shown in the drawings.

The lower end of the arm 1 and the vicinity of the upper end of the arm 2 are bendably connected via a connecting pin 3, and the upper end of the arm is rotatably connected via a pin 6 to a bracket 5 fixed to an opening/closing lid 4 consisting of a lid. On the other hand, the lower end of the arm 2 is rotatably connected to a bracket 8 fixed to the vehicle body 7 via a pin 9.

The opening/closing lid 4 is hinged to the vehicle body 7 at the right end in the figure.
The left end is opened upwards.

The arm 1 has a bent part 1a to the right in the figure at a certain distance from the tip at the end (lower end in the figure) connected to the arm 2, and is locked to the bent part 1a. One end of a pin mounting plate 10 is rotatably attached via a pin 11, and a locking pin 12 is provided protruding from the other end of the locking pin mounting plate 10.

A spring 13 is stretched between the locking pin 12 and the pin 3 located near the upper end of the other arm 2.
The bent portion 1a is urged to protrude to the left side in the figure.

Further, the arm 2 is provided with a locking portion 2a projecting to the left in the figure at the upper end on the side connected to the arm 1, and the locking pin 12 is continuously engaged with the end surface of the locking portion 2a. Cam groove 15.
16, and the cam groove 16 on the left side in the figure is used as a safety cam groove.

When the locking pin 12 engages with the cam groove 15, the locking position and the connecting pin 3 are located from the connecting line (center line) between the pivot pin 6 of the arm 1 and the pivot pin 9 of the arm 2. The connecting pin 3 is located on the unlocking side of the left opening side in the figure, and on the other hand, when the locking pin 12 engages with the safety cam groove 16, the connecting pin 3 is connected to the pivot pin connecting line of the arms 1 and 2. It is positioned in the locking and holding direction on the right side in the figure.

The operation of the stay device having the above structure will be explained with reference to FIGS. 2 to 5. When the opening/closing lid 4 is closed, the arms 1 and 2 are in a horizontally bent state as shown in FIG. The locking pin 12 of arm 1 is connected to the cam groove 15 of arm 2.
, 16 on the connection side.

From the closed state, when the left end of the opening/closing lid 4 in the figure is opened upward, the lower end of the arm 1 is pulled upward to the right, and the arm 2 connected by the pin 3 is also pulled upward to the right, as shown in FIG. As shown, arm 1 and arm 2 are opened in the vertical direction.

When the opening/closing lid 4 is further opened upward and the arms 1 and 2 become substantially straight, the locking pin 12 of the arm 1 first engages with the cam groove 15 on the right side in the figure, as shown in FIG.

When the opening/closing lid 4 is released in the engaged state, the locking pin 12 is pulled by the spring 13 and engaged with the cam groove 15, so it is locked in the engaged state, and the opening/closing lid 4 is released.
is supported in the open position by arms 1 and 2.

In the open state, the connecting pin 3 between the arm 1 and the arm 2 is
It is located in the locking and releasing direction on the left side of the connection line (shown by a dashed line in the figure) connecting the pivot pin 6 of the arm 1 and the pivot pin 9 of the arm 2.

In order to close the opening/closing lid 4 from the open state, since the connecting pin 3 is located on the locking release side, the opening/closing lid 4 is moved by the spring 13.
When pushed downward against a force, the arms 1 and 2 are bent into a dogleg shape, and the opening/closing lid 4 is closed, and the opening/closing lid 4 can be opened and closed with a one-touch operation.

Furthermore, if the locking pin 12 is moved and engaged with the cam groove 16 as shown in FIG. It is located in the locking and holding direction on the right side in the figure from the connection line 1 with the pivot pin 9.

Therefore, unless the connecting pin 3 moves beyond the connecting line 1 (consideration point) in the locking and releasing direction, the arms 1 and 2 will not close and the opening/closing lid 4 will be safely locked. .

Note that this invention is not limited to the above embodiment, and the spring 13 that biases the locking pin mounting plate 10 does not need to be attached to one end of the connecting pin 3, but may be attached to another spring stop provided on the arm 2. good.

Alternatively, the arm 1 provided with the locking pin 12 may be attached to the vehicle body 7 side, and the arm 2 provided with the cam grooves 15, 17 may be attached to the opening/closing lid 4 side.

As is clear from the above explanation, according to this invention, 2
In an opening/closing lid stay device in which two arms are bendably connected by a pin, one arm is pivoted to the vehicle body side, and the other arm is pivoted to the opening/closing lid side, one arm is biased toward the other arm side by a spring. In addition to attaching the locking pin, the locking pin forms a cam groove on the other arm that engages when the lid is opened, making it an extremely simple structure that allows you to simply open and close the lid with a single touch. By operation, the opening/closing lid can be supported in the open state by the stay device.

Further, since the cam groove is provided with a cam groove for a safety lock, the opening/closing lid can be more reliably locked in the open state.

Furthermore, since this device has an extremely small number of parts, it has the advantage of being inexpensive and easy to implement.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the stay device according to this invention, Fig. 2 is a side view showing the stay device in the closed state, Fig. 3 is a side view showing the stay device in the open state from the closed state, and Fig. 4 is the open state. A side view showing the state, FIG. 5 is a side view showing the safety lock state. 1...Arm, 2...Arm, 3...
...Connecting pin, 4...Opening/closing lid, 6...
... Pivot pin, 7... Vehicle body, 9... Pivot pin, 12... Locking pin, 13...
Spring, 15, 16...cam groove.

Claims (1)

[Scope of utility model registration request] In an opening/closing lid whose one end is rotatably connected to the vehicle body via a hinge member and whose other end opens upward, the arm has one end pivotally connected to the vehicle body, and the other end of the arm has one end pivotally connected to the opening/closing lid. They are connected in a bendable manner by a connecting pin, and a locking pin biased by a spring is attached to one arm at a fixed position from the end of the arm connection side to the other arm, while the locking pin and the locking pin are attached to the other arm. There are two cam grooves that engage when the opening/closing lid is opened, and when the locking pin engages with one of the cam grooves, the connecting pin of both arms will move toward the opening/closing lid from the connecting line connecting the pivot points of both arms. It is located on the unlocking side of the opening side and rises to the spring to maintain the locked state, and when the locking pin engages with the other cam groove, the connecting pin of both arms connects the pivot points of both arms. A stay device for an opening/closing lid, characterized in that it is located on a lock holding side opposite to a lock release side and is set to act as a safety lock.