JPH0527642Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention consists of a first opening/closing door attached to the vehicle body so as to be openable/closable, and a first opening/closing door attached to the opening of the first opening/closing door so as to be openable/closable. The present invention relates to a lock device having a second opening/closing door, and a locking mechanism for locking the first and second opening/closing doors, respectively, which can be opened and closed using a single key cylinder.

Conventional technology In the rear body structure of general passenger cars, the rear window is fixed to the vehicle body, as is typical of sedan-type cars, and only the trunk is opened using a luggage door to allow loading and unloading of luggage from the trunk. Some vehicles, such as hatchback-type vehicles, have a large back door that includes a rear window that opens the entire rear of the vehicle to allow luggage to be taken in and out of the trunk.

However, with the former, although it is easy to take small items in and out, it is troublesome to fold down the pack seat to enlarge the luggage compartment and take in and take out large items because the opening is small. In addition, the latter type has a large opening area, making it easy to take in and take out large items, but the large back door must be opened and closed even when taking out and taking out small items, which is cumbersome.

Therefore, in order to be able to change the opening area of the vehicle body according to the size of the luggage, the present applicant installed two opening/closing doors 2, 3 at the rear of the vehicle body 1, as shown in FIGS. 3 and 4. A large first opening/closing door 2 is provided on the vehicle body 1 so as to be openable and closable, and a small second opening/closing door 3 is provided at the rear opening of the first opening/closing door 2 so as to be openable and closable. did. According to this car, when putting in and taking out small items, it is possible to do so by opening the second door 3, and when taking out and taking out large items, it is possible to do so by opening the first door 2, which is very convenient. It is.

Problems to be solved by the invention The above-mentioned automobile has the first and second opening/closing doors 2,
A locking device is provided to prevent the accidental opening of the door 3, and this locking device includes a locking mechanism that locks the first opening/closing door 2 to the vehicle body 1, and a locking mechanism that locks the second opening/closing door 3 to the first opening/closing door. It is necessary to provide a lock mechanism to lock the door 2, and to release each lock mechanism, it is necessary to provide two key cylinders corresponding to each lock mechanism, which complicates the structure and makes the release operation troublesome. become. Therefore, it is desirable to be able to independently release the two lock mechanisms using one key cylinder.

For example, there is one disclosed in Japanese Utility Model Application Laid-open No. 156155/1983, in which two lock mechanisms can be operated with one key cylinder.

As shown in FIG. 5, a rear gate 6 is provided at the top of the vehicle body 5, a rear hood 7 is provided at the bottom,
A lock mechanism 8, 9 is provided on both, a key cylinder 10 is attached to the vehicle body 5, a rotating operation plate 11 is provided on the key cylinder 10, and the rods 12, 13 are operated to release the lock mechanisms 8, 9 by pulling. By locking the rods into long holes 14a and 14b of the plate 11, one of the locking mechanisms 8 and 9 can be released by pulling one rod without affecting the other rod.

However, the above-mentioned locking device
must be provided in the middle of the locking mechanisms 8 and 9,
As described above, a vehicle in which two opening/closing doors are provided at the top of the vehicle body cannot be used because a key cylinder cannot be provided in the middle.

Means for Solving the Problems This invention provides an automobile in which a first opening/closing door is provided in the vehicle body so as to be openable and closable, and a second opening/closing door is provided in the opening of the first opening/closing door so as to be openable/closable. The first striker and the second openable door can be opened with a single key cylinder provided on the bottom of the door, and the first striker provided on the lower surface of the first openable door and the second openable door A second striker provided on the lower surface of the door, a first lock lever swingably provided on the vehicle body and holding the first striker, and a first lock lever swingably provided on the first opening/closing door and holding the second striker. a second lock lever for holding a lock; a lock link provided swingably in proximity to the second lock lever to restrain the second lock lever; a lock link swingably provided on the vehicle body in correspondence with the first lock lever;
A first lock release lever that locks or releases the lock lever; a second lock release lever that is swingably provided on the vehicle body in correspondence with the lock link and that releases the lock link; and the first lock release lever and the second lock lever. It is attached to the vehicle body corresponding to the release lever, and by inserting the key and rotating it in one direction, the first operation lever provided at the tip can be used to release the first
The lock device is composed of a key cylinder that swings the lock release lever in the release direction and rotates it in the opposite direction to swing the second lock release lever in the release direction using a second operating lever provided at the tip. are doing.

Function: This device inserts the key into the key cylinder and rotates it by a certain angle in one direction, and the first operation lever swings the first lock release lever.
By releasing the lock lever, the first door can be opened, and by rotating the key in the opposite direction by a certain angle, the second operation lever swings the second lock release lever, and then the second lock release lever is rotated. The second lock lever is released by swinging the lock link, and the second opening/closing door can be opened.

Embodiment FIGS. 1 and 2 are drawings showing an embodiment of the present invention. In the figures, 15 is a vehicle body, which has a closed cross section with an inner panel 16 and an outer panel 17, and constitutes a luggage room. ing. 18 is the car body 15
A first opening/closing door, such as a back door, which covers the opening of the vehicle body 15, is composed of an inner panel 19 and an outer panel 20, and is attached to the opening of the vehicle body 15 via a suitable hinge mechanism (not shown) so as to be openable and closable. ing. 21 is a second door that covers the opening of the back door 18;
An opening/closing door, such as a luggage door, is composed of an inner panel 22 and an outer panel 23, and is attached to the opening of the back door 18 via a suitable hinge mechanism (not shown) so that it can be opened and closed.

24 is a first base attached to the inner panel 16 of the vehicle body 15; 25 is a second base attached to the inner panel 19 of the back door 18; and 26 is a reinforcing member attached to the inner panel 22 of the luggage door 21. A first striker 27 is provided on the lower surface of the second base 25 so as to protrude downward, and is made of a round bar bent into a U shape, and is arranged along the longitudinal direction of the vehicle body. 28 is a second striker provided on the inner panel 19 and reinforcing member 26 of the luggage door 21 so as to project downward;
a and a lock pin 28b fixed to its lower end. The lock pin 28b is also arranged along the front-rear direction. 29 is the first striker 27
The first lock lever locks the first base 2.
It is pivotally connected to a pivot 30 protruding from the center of 4. The first lock lever 29 has a lock groove 31 for holding the first striker 27 at its left end, an engagement recess 32 at the lower surface of the entrance of the lock groove 31, and a locking arm 33 bent at its lower end. , when the back door 18 is closed, the first striker 27 enters into the lock groove 31 and the lock groove 3
1 is held horizontally. A second lock lever 34 holds the second striker 28, and is pivotally connected to a pivot shaft 35 protruding from the center of the second base 25. The second lock lever 34 has a lock groove 36 at its right end that holds the lock pin 28b of the second striker 28, and an engagement recess 3 at its left end.
7, and a locking arm 38 is bent at the upper part of the engagement recess 37. When the luggage door 21 is closed, the locking pin 28b of the second striker 28 enters into the locking groove 36 and locking the locking groove 3.
6 is held horizontally. Reference numeral 39 denotes a lock link disposed close to the second lock lever 34, and is pivotally connected to a pivot shaft 40 protruding from the second base 25. The lock link 39 has an engaging protrusion 41 formed on the right side, a locking arm 42 at the upper left side, and an engaging arm 43 at the lower part. The locking arm 42 and the locking arm 3 of the second lock lever 34
A spring 44 is stretched between the lock link 39 and the second lock lever 34 to constantly apply a clockwise rotational force to the lock link 39 and a counterclockwise rotational force to the second lock lever 34. When the luggage door 21 is closed, it is locked. The engagement protrusion 41 of the link 39 engages with the engagement recess 37 of the second lock lever 34 to restrain the second lock lever 34 and lock the luggage door 21. Further, the engaging arm 43 projects downward from the slit 25a of the second base 25. 45 is a first lock lever 29 that locks or releases the first lock lever 29;
The lock release lever is pivotally connected to a pivot shaft 46 protruding from the first base 24. The first lock release lever 45 has an engagement protrusion 47 formed on the right side slightly below the pivot 46, which engages with the engagement recess 32 of the first lock lever 29, and a locking arm 48 formed at the lower part of the locking lever 45. A first operating arm 49 is bent at the lower part of the arm 48. A spring 50 is stretched between the locking arm 48 and the locking arm 33 of the first lock lever 29 to constantly apply clockwise rotational force to the first lock lever 29 and to the first lock release lever 45 at all times. A rotational force is applied in the counterclockwise direction, and when the back door 18 is closed, the engagement protrusion 47 of the first lock release lever 45 engages the first lock lever 2.
The first lock lever 2 is engaged with the engagement recess 32 of 9.
9 and lock the back door 18. 51
is a second lock release lever that releases the lock link 39, and is pivotally connected to a pivot shaft 52 protruding from the first base 24. The second lock release lever 51 has an extended operating arm 54 for swinging the lock link 39 upward, a locking arm 55 on the lower left side, and a second operating arm 56 on the left side. . And this second lock release lever 5
A spring 57 is stretched between the first locking arm 55 and the first base 24 to constantly apply a counterclockwise rotational force to the second lock release lever 51, and the operating arm 54 is connected to the lock link 39. It is opposed to the engagement arm 43 at a slight distance from it. A key cylinder 58 is fixed to the outer panel 17 of the vehicle body 15 between the first lock release lever 45 and the second lock release lever 51. A first operating lever 60 is fixed in correspondence with the operating arm 49, and a second operating lever 61 is fixed in correspondence with the second operating arm 56 of the second lock release lever 51. By inserting the key 62 into the key cylinder 58, the rotation shaft 5
9 becomes rotatable, and when the key 62 is rotated clockwise, the rotation shaft 59 and the first and second operating levers 6 are rotated.
0 and 61 rotate in the same direction, and the first operating lever 60
The first operating arm 49 of the first lock release lever 45
Push up to swing the lever 45 clockwise. Further, when the key 62 is rotated counterclockwise, the rotation shaft 59 and the first and second operation levers 60,
61 rotates in the same direction, and the second operating lever 61 pushes up the second operating arm 56 of the second lock release lever 51 to swing the lever 51 clockwise.

In the lock device having the above structure, when the back door 18 and the luggage door 21 are closed, the first striker 27 enters and is held in the lock groove 31 of the first lock lever 29, and the first striker 27 is held in the lock groove 31 of the first lock lever 29.
The engagement recess 32 of the first lock release lever 45 is engaged with the engagement protrusion 47 of the first lock release lever 45, and the back door 18 is in a locked state. Also, the lock pin 28b of the second striker 28 is connected to the second lock lever 3.
4 and is held in the lock groove 36 of the second lock lever 34, and the engagement recess 37 of the second lock lever 34 engages and is restrained by the engagement protrusion 41 of the lock link 39, and the luggage door 21 is also in a locked state.

To release the back door 18, insert the key 62 into the key cylinder 58 and turn it clockwise. Then, the first operating lever 60 rotates in the same direction, and the first operating arm 4 of the first lock release lever 45 rotates in the same direction.
9 to swing the lever 45 clockwise to release the engaging protrusion 47 of the first lock release lever 45.
is removed from the engagement recess 32 of the first lock lever 29 to release the first lock lever 29, and at the same time, the first lock lever 29 is pulled by the spring 50 and swung clockwise to tilt the lock groove 31 upward.
The first striker 27 is unlocked. After this, when the back door 18 is opened, the first striker 2
7 rises to lock groove 3 of first lock lever 29.
1, the back door 18 is opened. Also, when the back door 18 is closed, the first striker 27
enters the locking groove 31 of the first locking lever 29, then the first locking lever 29 is swung counterclockwise, and at the same time as the closing is completed, the engaging recess 32 of the first locking lever 29 locks the first locking lever 45.
The back door 18 is automatically locked by being engaged with and restrained by the engaging protrusion 47 of the back door 18.

To open the luggage door 21, insert the key 62 into the key cylinder 58 and turn it counterclockwise. Then, the second operation lever 61 rotates in the same direction, pushes up the second operation arm 56 of the second lock release lever 51, and swings the lever 51 clockwise. Push the engagement arm 43 of the lock link 39 with the working arm 54 to swing the lock link 39 counterclockwise,
The second lock lever 34 is released by removing the engagement protrusion 41 of the lock link 39 from the engagement recess 37 of the second lock lever 34, and at the same time, the second lock lever 34 is pulled by the spring 44 and swung counterclockwise. The lock groove 36 is tilted upward to unlock the second striker 28. Thereafter, when the luggage door 21 is opened, the second striker 28 is raised, the lock pin 28b is separated from the lock groove 36 of the second lock lever 29, and the luggage door 21 is opened. When the luggage door 21 is closed, the lock pin 28b of the second striker 28 enters the lock groove 36 of the second lock lever 34, and then the second lock lever 34 is swung clockwise and the second lock lever 34 is engaged at the same time as closing is completed. Recess 37
is engaged with and restrained by the engagement protrusion 41 of the lock link 39, and the luggage door 21 is automatically locked.

During the above operation, when the back door 18 is released, the lock link 39 is completely separated from the second lock release lever 51, so even if the key cylinder 58 is turned counterclockwise, the luggage door 21 will not be opened.

Effects of the invention This invention improves operability because the first opening/closing door or the second opening/closing door can be opened by simply rotating one key cylinder clockwise or counterclockwise.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of a locking device according to the present invention, Fig. 2 is a longitudinal sectional side view of the locking device, Figs. 3 and 4 are perspective views of essential parts of an automobile having two opening/closing doors, and Fig. 5. 1 is a longitudinal sectional side view of a conventional locking device. 15...Vehicle body, 18...First opening/closing door, 21...
...Second opening/closing door, 27...First striker, 28
...Second striker, 29...First lock lever, 34...Second lock lever, 39...Lock link, 45...First lock release lever, 51...
...Second lock release lever, 58...Key cylinder.

Claims (1)

[Scope of utility model registration request] Used in an automobile in which a first opening/closing door is provided in the vehicle body so as to be openable and closable, and a second opening/closing door is provided in the opening of the first opening/closing door so as to be openable/closable, and the second opening/closing door is provided on the underside of the first opening/closing door. a first striker provided on the lower surface of the second opening/closing door; and a first striker provided swingably on the vehicle body and holding the first striker.
a second lock lever that is swingably provided on the first opening/closing door and holds the second striker; a lock that is swingably provided near the second lock lever and that restrains the second lock lever; a link, a first lock release lever that is swingably provided on the vehicle body in correspondence with the first lock lever and that locks or releases the first lock lever, and a first lock release lever that is swingably provided on the vehicle body in correspondence with the lock link;
A second lock release lever that releases the lock link is attached to the vehicle body in correspondence with the first lock release lever and the second lock release lever. By swinging the first lock release lever in the release direction with the first operation lever provided and rotating it in the opposite direction, the second operation lever provided at the tip swings the second lock release lever in the release direction. A locking device for an opening/closing door, characterized in that it is composed of a key cylinder for locking the door.