JPH0328684Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a locking device for an opening/closing body that is most suitable for automobiles.

[Prior art]

Conventionally, as a locking device for an opening/closing body such as a trunk lid, there is one described, for example, in Automotive Engineering Complete Book, Volume 13, "Passenger Car Body" (Sankaido Edition).

As shown in FIGS. 4 and 5, the locking device includes a striker 105 on the rear panel 103 side of the vehicle body, and an engagement mechanism 109 on the trunk lid 107 side that can be opened and closed in the direction of the arrow using a hinge (not shown) as a fulcrum. When the trunk lid 107 is closed, the latch 111 of the engagement mechanism 109 and the striker bolt 113 of the striker 105 are engaged, resulting in a locked state.

[Problem that the invention attempts to solve]

In such a locking device for the trunk lid 107, the lock case 115 of the meshing mechanism 109
is formed with a guide groove (not shown) for guiding the striker 105 to the latch 111;
Even if the striker 105 moves slightly in the vehicle width direction, it is shaped to correctly engage with the latch 111 at its normal position. However, before and after (arrow A in Figure 4)
There was no countermeasure for guiding the striker 105 to the normal position in response to the direction movement.

For this reason, for example, in the event of a rear-end collision, the rear panel 10
When the striker bolt 113 deforms and moves forward as shown by arrow B in FIG. There was a risk that the outer side a would interfere with the upper end C of the rear panel 103 and become unrotatable. In addition, when the trunk lid 107 is forcibly opened and then closed again, the outside a of the tip of the lock case 115 is
There was a problem in that the upper end C and the inner side b of the tip of the rear panel 103 interfered with the corner d of the striker bolt 113, making smooth opening and closing impossible.

Therefore, the purpose of this invention is to provide a locking device for an opening/closing body such as a trunk lid that can ensure smooth opening/closing even if deformation and movement occur in the event of a rear-end collision and the proper engagement position shifts. There is.

[Means to solve the problem]

In order to achieve the above object, this invention provides a locking device comprising a striker on one of the vehicle body and the opening/closing body, and an engagement mechanism that removably engages with the striker on the other,
The striker consists of a base plate and a U-shaped striker bolt that protrudes from the base plate, and the corner of the striker bolt that engages with the engagement mechanism is curved, while a lock case tip of the engagement mechanism that corresponds to the striker is connected from the striker bolt. A relief part is provided that slopes toward the base plate side.

[Effect]

In such a locking device for an opening/closing body, the opening/closing body can be opened and closed by unlocking the locking mechanism that engages with the striker.

Next, when the opening/closing body during closing is rotated upward in a state where the normal meshing position has shifted during a rear-end collision, the opening/closing body can be opened without being blocked by the lock case by the relief portion.

Furthermore, when the opening/closing body is rotated downward during opening, the lock case is not blocked by the relief portion and the trunk lid is closed. At this time, the lock case rotates and slides into the curved corner of the striker, and the engagement mechanism comes to engage with the striker.

〔Example〕

Hereinafter, one embodiment of this invention will be described in detail with reference to the drawings of FIGS. 1 to 3.

In the figure, numeral 1 indicates a trunk lid that serves as an opening/closing body of the automobile 3. The trunk lid 1 is made up of an inner panel 5 and an outer panel 7, and can be opened and closed in the direction of arrow R via a hinge (not shown), and is locked by a locking device 9 when the lid 1 is closed.

The locking device 9 consists of an engaging mechanism 11 provided on the inner panel 5 side of the trunk lid 1 and a striker 17 provided on the rear panel 15 side of the vehicle body. The striker 17 has a base plate 21 bolted 19 to the rear panel 15.
The U-shaped striker bolt 23 has a protruding shape, and an upper corner 25 of the striker bolt 13 that engages with the engagement mechanism 11 is formed into a large curve.

On the other hand, the engagement mechanism 11 is housed in a lock case 29 fixed to the inner panel 5 via a bracket 27, and has a latch 31 that engages with the striker bolt 23 in a detachable manner.
and a locking lever (not shown) that locks or releases the latch 31 when engaged.
The locking lever has a key cylinder 3.
3 or a remote control opener (not shown). As a result, when the latch 31 and the striker bolt 33 engage with each other, the lock can be unlocked by operating the key cylinder 33 or the remote control opener.

The lock case 29 is connected to the striker bolt 2.
A guide groove is provided at the tip to guide the bolt 23 to the latch 31 when entering the latch 31.
A relief portion 35 is formed that slopes from the striker bolt 23 to the base plate 21.

A weather strip 37 ensures a seal around the trunk lid when closed, and is mounted and supported on a flange 39 that stands up shorter than the rear panel 15.

In the lock device 9 configured in this way,
When the trunk lid 1 is rotated downward when opened, the latch 31 of the meshing mechanism 11 is in a locked state in which it is correctly engaged with the striker bolt 23 at its normal position. Furthermore, the trunk lid 1 can be opened by disengaging the latch 31 and the striker bolt 23 to unlock it. Next, when the rear panel 15 deforms and moves forward (arrow C) during a rear-end collision, causing a shift in the engagement position, when the trunk lid 1 is rotated upward, the lock case 29 slides into contact with the upper end 15a of the rear panel 15 and prevents it. It will rotate and open without happening. Further, when the trunk lid 1 in the open state is rotated downward, the lock case 29 rotates in without being blocked by the relief part 35 that slides into contact with the upper end 15a of the rear panel 15, and the trunk lid 1 is closed. At this time, lock case 29
The tip of the latch 3 slides into the curved corner 25 of the striker bolt 23 without any trouble.
1 and the striker bolt 23 come to mesh with each other.

Although this embodiment has been described as a trunk lid locking device, it is also possible to implement the locking device as a back door locking device.

[Effect of idea]

As explained above, according to the lock device of this invention, even if the lock device's engagement position shifts due to a rear-end collision, the lock case will not be blocked and the opening/closing body can be opened and closed without any hindrance. become.

[Brief explanation of drawings]

Figure 1 is a schematic cross-sectional view of the locking device of this invention in the locked state in the trunk lid, Figure 2 is a schematic explanatory diagram of the deformed state, and Figure 3 is a perspective view of an automobile in which this invention is implemented. 4 are schematic cross-sectional views similar to FIG. 1 showing the conventional example, and FIG. 5 is a schematic explanatory view similar to FIG. 2 showing the conventional example. Explanation of main drawing symbols, 1... Trunk lid (opening/closing body), 9... Lock device, 11... Engaging mechanism, 15... Rear panel (vehicle body), 17... Striker, 21... Base plate, 23... Striker Bolt, 25...corner, 29...lock case, 35...relief.

Claims (1)

[Scope of utility model registration request] A striker is installed on either the vehicle body or the opening/closing body.
On the other hand, in a locking device comprising an engaging mechanism that engages with the striker in a detachable manner, the striker comprises a base plate and a U-shaped striker bolt protruding from the base plate, and a corner portion of the striker bolt that engages with the engaging mechanism is curved. A locking device for an opening/closing body, characterized in that a relief portion is provided at a tip of a lock case of a meshing mechanism corresponding to the striker, the relief portion being inclined from the striker bolt toward the base plate side.