JPH0721395Y2 - Seat back lock device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention provides a small doorway that communicates with the passenger compartment and the trunk room with a front seat back of the rear seat so that it can be opened and closed, and the seat back has a double lock. The present invention relates to a seat back lock device that can be locked by a device.

(Prior Art) For example, when someone asks another person to move a car in a parking lot or the like, valuables may be stolen.

In order to prevent such theft, conventionally, valuables are put in the trunk room at the rear of the vehicle body, and the sub-key that cannot unlock the trunk lid for opening and closing the trunk room is handed to others for moving the vehicle. Is being done.

Even in this case, since the other person who is requested to move the vehicle enters the vehicle compartment, even when the other person operates the door opener provided in the vehicle compartment to open the trunk lid, even if the trunk lid is in the open state. You will be in trouble. Therefore, it is considered that a cancel mechanism is provided to prevent the trunk lid from opening even if the door opener is operated.

On the other hand, in such a vehicle, as shown in FIG. 8, in order to easily put valuables and small articles in and out of the passenger compartment 1 into the trunk room 2, a partition for partitioning the passenger compartment 1 and the trunk room 2 is provided. Form a small doorway 4 on the wall 3,
The small goods entrance / exit 4 is also closed by a seat back 6 of a rear seat 5. A seat lock device 7 for fixing the seat back 6 to the partition wall 3 is provided.
(See FIG. 9) are provided.

In this case as well, for the same purpose of preventing theft as described above, the operation knob 9 (see FIG. 9) of the knob fixing device (not shown) for disabling the unlocking knob 8 of the seat lock device 7 is attached to the small article entrance / exit. It is also possible to face the trunk room 2 from 4. As a result, the operating knob 9 can be operated from the trunk room 2 by opening the trunk lid 10, but cannot be operated from the vehicle compartment 1 side.

(Problems to be solved by the invention) However, fixing the knob fixing device by the operation knob 9
Since the releasing operation can be performed only from the inside of the trunk room 2, the knob fixing operation cannot be easily performed from inside the vehicle compartment 1, which is inconvenient.

Therefore, an object of the present invention is to provide a seat back lock device that can easily perform the fixing operation of the knob fixing device from the passenger compartment side.

(Means for Solving the Problem) Based on this object, the present invention is provided with a small article entrance and exit provided on a partition wall between a passenger compartment and a trunk room, which can be opened and closed by a front seat back of a rear seat, A seat lock device is interposed between the seat back and a member on the vehicle body side, a lock release knob is provided at a free end portion of a lock release lever of the seat lock device, and the knob is the seat back. A knob fixing device for fixing and releasing the knob is interposed between the lever and the seat back, and the operation knob of the knob fixing device faces the trunk room. And a seat back lock device in which the seat lock device is unlocked by pulling the knob toward the passenger compartment. The lever is composed of a first lever portion on the seat lock device side and a second lever portion on the knob side, and the first and second lever portions are connected to each other so as to be relatively displaceable in a predetermined range in the longitudinal direction. When the knob fixing device is urged by a spring in a mutually extending direction and the knob fixing device presses the second lever portion between the first lever portion and the seat back against the spring urging force, the second lever portion is pushed. The seat back lock device is provided so as to be lockable.

(Operation) According to such a configuration, when the seat back is erected and the seat back is fixed to the partition wall by the seat lock device, when the knob for unlocking is pushed, the knob fixing device is activated. , The unlocking knob is fixed,
The seat lock device cannot be released from the passenger compartment.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 6, 11 is a vehicle body, 12 is a vehicle compartment, 13 is a rear seat provided in the vehicle compartment, and 14 is a vehicle body 11.
A rear trunk room, 15 is a trunk lid for opening and closing the trunk room 14, and 16 is a partition wall for partitioning the trunk room 14 and the vehicle compartment 12.

The partition wall 16 is formed with a small article entrance / exit 17 that connects the vehicle compartment 12 and the trunk room 14 to each other. In the figure, 18 is a passenger compartment
12 rear parcel shelves at the rear. The small goods entrance 17 is closed by the seat back 19 of the rear seat 13.

In addition, this seat back 19 is provided so as to be able to tilt up and down forward,
A back plate 19a made of a steel plate is provided on the back surface of the seat back 19 as shown in FIG. Moreover, a seat lock device 20 (see FIGS. 3 and 7) is interposed between the seat back 19 and the partition wall 16.

The seat lock device 20 includes a seat back 19 of the partition wall 16.
A striker 21 fixed to the side surface and a latch mechanism 22 (see FIG. 3) attached to the back plate 19a are provided.

The latch mechanism 22 includes a case 23, side walls 23a of the case 23,
23a includes a support shaft 24 rotatably held, a latch claw 25 fixed to the support shaft 24, and a coil spring 26 wound around the support shaft 24 and having both ends fixed to the latch claw 25 and the case 23. . When the tip end 21a of the striker 21 is inserted between the latch claw 25 and the lower wall 23b of the case 23, the striker 21
The distal end portion 21a of the above is configured to rotate the latch claw 25 against the spring force of the coil spring 2b and be locked to the latch claw 25. Since such a structure adopts a well-known structure,
Detailed illustration and description are omitted.

Further, an unlocking means for the seat lock device 20 is provided at one end of the support shaft 24. This unlocking means
It has an arm 27 fixed to one end of the support shaft 24 and a lever or operating member 28 connected to the arm 27. The operating member 28 has first and second operating plates 29 and 30 as first and second lever portions, and the lower end portion of the first operating plate 29 is pivotally supported by the free end portion of the arm 27 by a pin 31. There is.

A first spring locking projection 29a is formed on the upper end of the above-mentioned first operation plate 29 as shown in FIGS. 1 and 4, and
A holding piece 29b is formed along the plate surface. Further, a vertically elongated guide hole 30a is formed near the lower portion of the second operation plate 30, and second spring locking portions are provided on both sides of the lower end portion of the second operation plate 30.
30b and a no-block claw 30c as a first locking portion are formed. The lower portion of the second operation plate 30 is arranged between the upper end of the first operation plate 29 and the holding piece 29b, and the upper end of the first operation plate 29 and the holding piece 29b are placed in the guide slot 30a. A guide pin 32 that penetrates is inserted.

The guide pin 32 has its end fixed by crimping.
A tension coil spring 3 is provided between the spring locking portions 29a and 30b.
3 is interposed to urge the second operation plate 30 upward.
As a result, the screw portion 30d (the fourth portion) on the upper end of the second operation plate 30 is
The lock release knob 34 screwed to the seat back 19
As shown in FIG. 1 (b), it is projected upward from the opening 19b at the upper end of the.

Further, a knob fixing device 35 (see FIGS. 2 and 5) that cooperates with the lock block claw 30c is mounted on the back plate 19a.

In this knob fixing attachment 35, the opening end 36b has the back plate 19a.
A cup-shaped support housing 35 fixed to the inner surface, and a rod 37 penetrating the back plate 19a and the bottom wall 36a of the support housing 36.
And a disk-shaped cam plate attached to the inner end of the rod 37
38, an operation knob 39 screwed to the outer end of the rod 37, a rotation imparting spring 40 wound around the rod 37, one end of which is fixed to the rod 37 and the other end of which is fixed to the support housing 36, A compression spring 4 interposed between the knob 39 and the back plate 19a.
1 and a locking pin 42 fixed to the side of the bottom wall 36a of the support housing 36 opposite to the back plate 19a. Locking claws 38a and 38b are formed on both sides of the cam plate 38, and the locking claw 38a is locked to the locking pin 42 by the spring force of the rotation imparting spring 40, and serves as a second locking portion. The stop claw 38b is located below the locking claw 30c.

Next, the operation of such a configuration will be described.

According to such a configuration, the seat back 19 is erected and the seat back 19 is fixed to the partition wall 16 by the seat lock device 20, and the knob 34 for unlocking the seat back 19 is used.
In the state of protruding upward from the opening 19b as shown in FIG. 1B, the lock releasing knob 34 can be pulled upward.

Therefore, when the lock releasing knob 34 is pulled upward from this state, the first operating plate 29 is displaced upward via the second operating plate 30 and the guide pin 32. As a result, the support shaft 24 is rotated via the arm 27, and the latch claw 25 is rotated in the unlocking direction so that the latch mechanism 22 can be extracted from the striker 21.

In this state, by tilting the seat back 19 to the front side, the small article entrance / exit 17 is opened in the vehicle compartment 12, and small articles can be taken in and out of the vehicle compartment 12 into the trunk room 14.

On the other hand, the seat back 19 is raised and the seat lock device 20
The seat back 19 is fixed to the partition wall 16 by means of the lock release knob 34, and the lock release knob 34 is inserted from the opening 19 of the seat back 19 to the first position.
When the unlocking knob 34 is pushed downward in FIG. 1 (b) in a state of protruding upward as shown in FIG. 2 (b), the first operation plate 30 is pulled as shown in FIG. 1 (a). Coil spring
It is pressed and displaced downward against the spring force of 33.

With this displacement, the arcuate surface of the locking claw 30c of the second operation plate 30 presses the arcuate surface of the locking claw 38b provided on the cam plate 38, and the cam plate 38 is rotated by the spring force of the spring 40. Rotate clockwise against. The tip of the locking claw 30c is the cam plate 38.
When the cam plate 38 is displaced downward from the rotation center O, the cam plate 38 is rotated counterclockwise by the spring force of the rotation imparting spring 40, and the locking claw 38a is brought into contact with the locking pin 42 and stopped.

In this state, if the pressing force is removed from the unlocking knob 34, the second operating plate 30 will be displaced upward by the spring force of the tension coil spring 33 as shown in FIG.
As shown in FIG. 1 (a), the locking claw 30c is locked by the locking claw 38b. In this state, since the second operation plate 30 cannot be displaced upward, the knob fixing device 35 cannot be unlocked. Therefore, in this state, the seat back 19 cannot be tilted forward from the inside of the vehicle compartment 12 to open the small article entrance / exit 17.

To unlock the lock, open the trunk lid 15 and operate the unlock control knob from inside the luggage compartment 14.
39 by pulling against the spring force of the compression spring 41,
Is displaced to the right in FIG. As a result, the locking pin 42
Is disengaged from the locking claw 38a, and the cam plate 38 is rotated counterclockwise by the spring force of the rotation imparting spring 40 in FIG.
The locking claw 38b is disengaged from the locking claw 30c. As a result, the second operating plate 30 is displaced upward by the spring force of the tension coil spring 33 as shown in FIG. 1B, and the unlocking operation by the unlocking knob 34 becomes possible.

(Effects of the Invention) As described above, the present invention is such that the small doorway provided in the partition wall between the passenger compartment and the luggage compartment is provided so as to be opened and closed by the front seat back of the rear seat. A seat lock device is interposed between the seat lock device and the side member, and a lock release knob is provided at a free end portion of a lock release lever of the seat lock device. A knob fixing device for fixing and releasing the knob is interposed between the lever and the seat back, and an operation knob of the knob fixing device is exposed to the trunk room. A seat back lock device in which the seat lock device is unlocked by pulling the knob toward the passenger compartment. Is a first lever portion on the seat lock device side and a second lever portion on the knob side.
A lever portion, the first and second lever portions are connected to each other so as to be relatively displaceable in a longitudinal direction relative to each other within a predetermined range, and are biased by springs in a mutually extending direction, and the first lever portion and the seat back are provided. And the knob fixing device is arranged to be able to lock the second lever part when the second lever part is pressed against the spring biasing force, the ON operation of the knob fixing device is performed. Can be easily performed from the passenger compartment side.

Further, when the second lever portion is pressed against the spring biasing force, the second lever portion is locked by the knob fixing device, so that the second lever portion is not locked by the knob fixing device. In the state where the lever composed of the first and second lever parts is extended by the spring biasing force, and when the second lever part is locked by the knob fixing device, the lever composed of the first and second lever parts is reduced in length. It will be in the state of.

As a result, when the second lever portion is not locked by the knob fixing device, that is, when the lever including the first and second lever portions is extended by the spring biasing force, the second lever portion is By setting so as to project from the seat back, it is possible to easily operate the seat lock device by the second lever portion.

Moreover, the second lever portion is locked by the knob fixing device,
When the lever composed of the first and second lever portions is contracted, the second lever portion can be made inoperable by setting the second lever portion so as not to project from the seat back. With this, when the second lever portion is locked by the knob fixing device, it is possible to prevent the second lever portion from being pulled by an unreasonable force and breaking the second lever portion, the knob fixing device, or the like. .

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 (a), (b) to FIG. 7 show an embodiment of a seat back lock device according to the present invention, and FIG. 1 (a), (b) Is a schematic explanatory view of the operation of the main part of the present invention, FIG. 2 is a sectional view showing a relationship between a lock releasing knob and a knob fixing device, and FIG. FIG. 4 is a schematic perspective view, FIG. 4 is an exploded perspective view in which parts of FIG. 1 are partially omitted, FIG. 5 is an exploded perspective view of the knob fixing device shown in FIG. 1, and FIG. (A), (b) to FIG. 7 is a schematic explanatory view of an automobile having a seat back fixed by the seat back lock device shown in FIG. 5, and FIG. 7 is a perspective view of the seat back of FIG. FIG. 8 is a schematic explanatory view of an automobile equipped with a conventional seat back lock device. FIG. 9 is a perspective view of the seat back shown in FIG. 11 ... Car body 12 ... Car interior 13 ... Rear seat 14 ... Trunk room 16 ... Partition wall 17 ... Small doorway 19 ... Seat back 20 ... Seat lock device 28 ... Operating member (lever) 29 ... First operating plate (first lever part) 30 … Second operation plate (second lever part) 33… Tension coil spring 34… Lock release knob 35… Knob fixing device 39… Operation knob

Claims (1)

[Scope of utility model registration request] 1. A small doorway provided in a partition wall between a passenger compartment and a luggage compartment is provided so as to be openable and closable by a forward-folding seatback of a rear seat, and a seatlock device is provided between the seatback and a member on the vehicle body side. And a lock releasing knob is provided at a free end portion of a lever for releasing the lock of the seat lock device, and the knob is attached to the seat back so as to be pulled and operated from the upper surface. A knob fixing device for fixing and releasing the knob is interposed between the back and the back, an operation knob of the knob fixing device faces the trunk room, and the knob is pulled toward the passenger compartment. The seat back lock device is configured such that the seat lock device is unlocked by the above, wherein the lever is a first lever portion on the seat lock device side. And a second lever portion on the knob side, wherein the first and second lever portions are connected to each other so as to be relatively displaceable in the longitudinal direction within a predetermined range, and are biased by a spring in a direction in which they extend. The knob fixing device is interposed between the lever portion and the seat back so that the second lever portion can be locked when the second lever portion is pressed against the spring biasing force. Seat back lock device.