JPS59149833A - Locking device in rear seat for vehicle - Google Patents

Abstract

PURPOSE:To make lock releasing impossible when necessary, by prohibiting the shift of a hook by whether or not the hook and a handle are to be coupled. CONSTITUTION:A hook member 12 and a handle member 14 are rotatably supported on a pivot 10 of both side plates 9 of a support bracket 7 for a seat back 5. A U-shaped latch member 15 is tightly set to the back upper part of the seat back 5, and in time of locking the seat back 5, it is engaged with a hook 11 of a hook member 12. A lock releasing prohibitive device 21 consists of a working leve 24 and a coupling member 25 coupling the working lever 24 with the handle member 14. A pin 26 of the coupling member 25 is fitted in a long hole 29 of the handle member 14, while a projecting pin 28 is fitted in a hole 30 of the working lever 24. And, with the pin 26, coupling between the handle member 14 and the hook member 12 is released, and the shifting of the hook member 12 is prohibited as occasion demands, thereby making the lock releasing impossible when necessary.

Description

[Detailed description of the invention] Regarding equipment.

In order to accommodate long items that cannot fit inside the trunk, the rear seat backs are made foldable and can be folded down onto the seat cushions, creating a long item that spans the space above the seat back and inside the trunk. 2. Description of the Related Art Rear seats for vehicles that are configured to accommodate all items are well known in the art. In such a folding rear seat, when the seat back is in the upright position of use, the seat back can be locked by the full locking device to prevent it from falling over inadvertently. ing. However, this locking device can be unlocked from inside the car, so if you lend your car to someone else, it is illegal to unlock the locking device without permission, and it is illegal to steal luggage in the trunk. Considering that there are many occasions, especially these days, where you have to hand over your car to a complete stranger, the above-mentioned inconvenience will be ignored. This is an important issue that cannot be solved.

The present invention is based on the above recognition, and an object of the present invention is to provide a locking device that can make unlocking impossible if necessary.

Advantageous embodiments of the invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing the arrangement of a foldable rear seat 2 of a passenger car 1 and a lock device 3 according to the present invention. The rear seat 2 has a seat cushion 4, a seat back 5, and a seat back 5, and the seat hack 5 can be tilted between an upright use position shown by a solid line in FIG. 1 and a tilted position shown by a chain line. I have no support for it. When the seat back 5 is in the use position, the seat back is locked by the locking device 3 to prevent inconveniences such as inadvertently tipping forward. Note that the terms "front" and "rear" used in this specification mean the front-rear direction of the vehicle (the left-right direction in FIG. 1).

Details of the lock device 3 will be explained with reference to FIGS. 2 to 4. Both lunges 8 of a substantially U-shaped support bracket 7 are fixed to the lower surface of the package tray 6 provided 71 behind the seat back 5. , a laterally extending pivot 10 is fixed. This pivot 10 has a hook 11 on the front part.
A hook member 12 having a handle member 12 and a handle member 14 having a grip 13 on an upper portion thereof are rotatably supported. On the other hand, on the upper part of the back surface of the seat back 5, there is a hanging member 15 which is formed into a substantially U-shape and is fixed as shown in FIG.
rt, this latch member 15 engages with the seven hooks 11 of the hook member 12 when the seat back 5 is in the locked position as shown in FIGS. 2 and 3.

The grip 13 of the handle member 14 passes through a notch 16 formed in the package tray 6 and projects above the tray 6, so that it can be operated from inside the vehicle. 1
Reference numeral 7 denotes a tension spring whose ends are locked to the handle member 14 and the support bracket 7, and this spring 17 causes the handle member 14 to rotate clockwise in FIG. Moreover, the back surface of the handle member 14 comes into contact with the end surface 18 defining the notch 16 of the package tray 6, and the handle member 14 is thus held in the state shown in FIG. On the other hand, the hook part 12 has a torsion spring 20 which is wound around the pivot point f@]0 and has one end fixed to the bottom plate 19 of the support bracket 7 and the other end fixed to the hook member 12 itself.
3, and is prevented from rotating clockwise beyond the position shown in FIG. 3 by a stopper (not shown).

Reference numeral 21 denotes an unlocking inhibiting means that disables unlocking of the locking device as necessary, as will be explained in detail later. A bending portion 221 which is bent into a rising shape W, an actuating lever 24 which is pivotally connected by a pivot pin 23, and a connecting member 2 which connects this lever 24 and the handle member 14.
5. As clearly shown in FIG. 4, the connecting member 25 consists of a round bar-shaped pin 26 extending laterally, and a projecting pin 28 integrally formed with this pin 26 via a support rod 27. . Each end of the pin 26 is slidably fitted into a long hole 29 formed at the rear of the handle member 14, while the projecting pin 28 is rotatably fitted into a hole 30 formed in the actuating lever 24. They are fitted in a freely movable state. In this case, in the state shown in FIG. 3, the pin 26 of the connecting member 25 is in contact with the front end 31 of the elongated hole 29 (see also FIG. It is in contact with the contact portion 32. Therefore, the handle member 14 and the hook member 12 are connected to each other by the pin 26,
These parts 14,12 can pivot together on the pivot 10. 33 is a torsion coil spring whose ends are locked to the actuating lever 24 and the bent portion 22;
This spring 33 has a so-called toggle function, and the actuating lever 24
3 and 5, or the second position shown in FIGS. 6 and 7. Reference numerals 34 and 35 indicate stops for stopping the actuating lever 24 in the first and second positions, respectively, and these stops 34 and 35 are attached to the support bracket 7. Further, one end of a link 36 is pivotally attached to one end of the operating lever opposite to the one in which the hole 30 is formed.
As shown in FIG. 1, this link 36 extends rearward along the inner surface of the side wall ζ in the i-rank room, and its rear end is connected to an operating member 3 rotatably supported on the vehicle body by a support pin 37.
8 (Fig. 3). This actuating member 38 is located within the trunk compartment.

The lock device 3 is generally constructed as described above, and when the seat back 5 is in the use position shown in FIGS.
are engaged with each other, and the other elements of the locking device 3 also maintain the state shown in the compartment 3M, so the seat back 5 is firmly locked and its forward tilting is reliably prevented.

When tilting the seat back 5 forward, grasp the grip 13f of the handle member 14 from inside the vehicle and pull it forward to move the handle member 14 counterclockwise in FIG. 3 against the action of the spring 17. Rotate it. At this time as well, due to the action of the torsion coil spring 330, the operating lever 2
4 is a connecting member 25 that maintains the first position shown in FIG.
The pin 26 also remains in contact with the contact portion 32 of the hook member 12. Therefore, when the handle member 14 is rotated counterclockwise, the hook member 12 is also rotated integrally with the handle member 14.
The hook 11 is rotated counterclockwise against the action of the hook 15, and the hook 11 is disengaged from the latching member 15, as shown in FIG. The seat back 5 is thus unlocked and can be freely tilted forward. When you release your hand from the grip 13, the handle member 14, the hook member 12, and the spring 17
．． 20 automatically returns to the position shown in FIG.

When the seat back 5 is raised to return to its use position, the latching member 15 hits the outer surface of the hook 11, and the force 5 is applied.
Since the hook member 12 acts as a cam surface, after the hook member 12 is rotated slightly counterclockwise together with the handle member 14, the latching member [5] engages with the hook 11, and the seat back 5 is locked again.

Next, we will explain the effect when the above-mentioned seat bank cannot be unlocked, such as when handing over the military to another person. In this case, the seat back 5 should be locked as shown in Fig. 3, and the trunk lid l
a (Fig. 1) and operate the actuating member 38 provided at the rear inside the trunk from outside the vehicle to apply this force to the third
Rotate clockwise in the figure to push the link 36 forward in the figure. This causes the operating lever 24 to rotate clockwise around the pivot pin 23, and when it reaches the second position shown in FIG. is held in this second position. When the operating lever 24 rotates as described above,
Along with this, the connecting member 25 also operates, and its pin 26 moves toward the rear end 31a of the elongated hole 29, thereby causing the pin 2
6 is removed from the contact portion 32 of the hook member 12. Therefore, the integral connection state between the hook member 12 and the handle member 14 is released, and even if the handle member 14 is rotated counterclockwise in FIG. 6 by grasping the grip 13, the handle member 14 Although the hook member 12 rotates, the hook member 12 remains engaged with the latching member 15 and does not rotate (FIG. 7). This prevents the locking device from being unlocked and makes it impossible to fold down the seat back 5 from inside the vehicle.As long as the trunk lid 1a is closed and locked, the luggage in the trunk compartment will not be stolen. You can definitely prevent this from happening. The handle member 14, which has been rotated to the position shown in FIG. 7, is prevented from rotating further in the counterclockwise direction from this position by a stopper (not shown).

Rotate the actuating member 38 counterclockwise to open the actuating lever 24.
When the locking device is returned to the first position and the pin 26 of the connecting member 25 is engaged with the abutting portion 321 of the hook member 12, the locking device returns to the state shown in FIG.

8 to 13 show a second embodiment of the present invention,
In this embodiment, the unlocking inhibiting means 21 has an actuation lever 24, but does not have the connecting member as in the previous embodiment, and therefore no elongated hole is formed in the handle member. Moreover, this operating lever 24 is rotatably supported on the handle member 14 by a pivot pin 23, and the operating lever 24 is
A protrusion 40 bent at the tip of the hook member 12
It can come into contact with a contact portion 32 formed in the. Further, the actuation lever 24 in this example also has a first position (FIGS. 10 and 11) where the protrusion 40 touches the contact portion 32, and
A second position (first position) where this protrusion 40 is removed from the contact portion
2 and 13). In this case, the operating lever 24 is located at these positions.
f! R-holding coil spring with toggle function 3
3 is anchored at one end to the operating lever 24 and at the other end to the handle member 14 itself. Stoppers 34 and 35 for stopping the shutter operating lever 24 at the first and second positions are provided in a protruding manner on the handle member 14.

The other configurations of the second embodiment are substantially the same as those of the first embodiment described above, and the same parts as those of the embodiment shown in FIGS. The same reference numerals as those in FIG. 7 are given, and detailed explanation thereof will be omitted. Further, its operation is almost the same as that of the previous embodiment. That is, when the hook 1.1 and the latching member 15 are engaged with each other and the seat back 5 is in a locked state as shown in FIG. At the contact portion 32, the handle member 14 and the hook member 12 are integrally connected. Therefore, when the handle member 14 is rotated counterclockwise in FIG. 10 from inside the vehicle, the hook member 12 is also rotated together, the hook 11 is engaged and disengaged from the latching member, and the seat back 5 is rotated.
is unlocked (Fig. 11).

To prohibit unlocking of the locking device, open the trunk lid (see Figure 1), operate the actuating member 38 from outside the vehicle, rotate the actuating lever 24 clockwise, and rotate the protrusion 4.
0 from the abutting portion 32 of the hook member 12 (FIG. 12), thereby moving the handle member 14 to the first position.
As shown in FIG. 3, even if the hook member 12 is rotated,
5 and does not rotate, so that the locking state of the locking device can be maintained completely. Rotated to the position shown in Figure 13/'
%Handle member] 4 is fixed by a stopper (not shown).
It is also the same as in the previous embodiment that it is not rotated counterclockwise beyond this position.

By the way, as is often seen in modern vehicles, the rear seats 1 to 1 are divided into two parts, and the two seat backs are tilted independently. 4J, it is possible to provide each of the divided seatbacks with the above-mentioned locking device. However, in this case, the unlocking inhibiting means in each locking device must be operated separately, which makes the operation somewhat complicated and inconvenient in use. The embodiments shown in FIGS. 14 to 20 are constructed to eliminate this inconvenience, and the details of ζ will be explained below.

The rear seat 2 shown in FIG. 14 also has a seat cushion 4 and seat backs 5, 5a, but the seat back in this example is divided into two parts (in this specification, each divided seat back is When it is necessary to make a distinction, one seat back 5 will be referred to as a first seat back, and the other seat back 5a will be referred to as a second seat back).

These first and second seat backs 5, 5a are supported so as to be able to tilt independently between a use position shown by a solid line in FIG. 14 and a reclined position shown by a chain line. When these first and second seat backs 5 and 5a are in their use positions, the tenth locking means 103 and the twentieth locking means 1 provided for the respective seatbacks are
03a to prevent inconveniences such as the seat backs 5, 5a inadvertently falling forward. As described above, the locking device 3 in this example has the first and twentieth locking means 103, 103a, but each of these locking means itself is operated by the locking device 3 shown in FIGS. 1 to 7. It has a structure similar to that except for the member 38, and the tenth hooking means 103 and the twentieth
The locking means 03a are constructed in the same manner as shown in FIG. 15, and the respective means 103, 103a are spaced apart from each other in the lateral direction of the vehicle. Therefore, each element of the tenth locking means 103 corresponding to each element of the locking device shown in FIGS. 1 to 7 is given the same reference numeral as the one shown in FIGS. 1 to 7, Furthermore, each element of the 20th locking means 103a corresponding to each element of the 10th locking means 103 is distinguished by adding the symbol "a" to each element of the 10th locking means 3. do. When it is necessary to specifically identify each element of the first and twentieth locking means, the tenth
The element number of the picking means 3 is "1st", the 20th picking means 3a
The word "second" is added to the elements to distinguish them. The structure of the tenth locking means 103 will be described in detail below, focusing on the differences from the locking device shown in FIGS. 1 to 4.

As can be seen from FIGS. 15 and 16, the f4 lock inhibiting 1F means 21 in this example is pivoted to the bottom plate 9 of the support bracket 7 by a pivot pin 23 so that it can rotate in a substantially horizontal plane. The operating lever 24 has an attached operating lever 24, and a connecting member 25 that connects the lever 24 and the handle member 14. This connecting member 25 is also formed in substantially the same manner as the connecting member 25 shown in FIG. 4, and as shown in FIG. The pin 28 connects to the rising portion 139 of the operating lever 24.
It is rotatably fitted into a hole 30 formed in the.

FIG. 16 corresponds to FIG. 3 explained earlier and similarly shows the first
Figure 8 is similar to Figure 5, Figure 19 is similar to Figure 6, and Figure 20 is similar to Figure 7.
FIG.
When the pin 2 of the connecting member 25 is in the first position shown in FIGS. 6 and 18 and shown in solid lines in FIG.
6 abuts against the abutting portion 32 of the hook member 12, and when the actuating lever 24 is in the second position shown in FIGS. 19 and 20 and indicated by the chain line in FIG. Engaging and disengaging from the portion 32 is the same as in the previous embodiment.

Further, a torsion coil spring 33 that urges the actuating lever 24 to either the first position or the second position is locked at each end by the bottom plate 19 of the support bracket 7 and the actuating lever 24, and is actuated. A stop 34,35 for stopping the lever 24 in the first or second position also projects from the bottom plate 19. Also in this example, a link 36 is pivotally attached to the actuation lever 24, and there is a gap between this link 36 and the actuation lever 24.
A snap 22 is interposed in this case, whereby both members 36
, 24 is reduced.

The other structure of the tenth locking means 103 is exactly the same as that of the locking device 13 shown in FIGS. 1 to 4 except that the actuating member 38 is removed. Further, as described above, the 20th locking means 103a has the same structure as the 10th locking means 103, and therefore, detailed explanation regarding the structure of the 20th locking means 103a will be omitted.

Now, the rear ends of the first link 36 and the second link 36a of the first and twentieth locking means constructed as described above are pivotally connected to the actuating member 38 through snaps 40, 40a, 40a, 40a, 40a, 40a, 40a, 40a, 40f, similar to the snap 22 described above. has been done. The actuating member 38 in this example is formed into a lever shape, and is
It is pivotally mounted via a support pin 42 to a bracket 41 fixed via a mounting plate 39 to the bracket 41 so as to be rotatable in a substantially horizontal direction.

The first and second links 36, 36a are pivotally connected to each end of the operating member 38 with a support pin 42 in between, and one tip of the operating member 38 is configured as a grip 43.

The operation of locking or unlocking the seat hacks 5, 5a in their use positions is carried out by the tenth locking means 103.
The operation is carried out separately and independently by the 20th locking means 103a and the 20th locking means 103a, but the manner of operation is the same for both, and the manner is the same as in the embodiment described above. Therefore, the unlocking operation in the tenth locking means 103 will be briefly explained.

As shown in FIG. 16, when the hook 11 and the hooking member 15 are engaged with each other and the seat back 5 is locked, the operating lever 24 is in the first position, and the connecting member 2
The pin 26 of No. 5 hits the contact portion 32 of the hook member 12,
The handle member 14 and the hook member 12 are integrally connected. Therefore, when the handle member 14 is rotated from the inside of the vehicle in the counterclockwise direction in FIG. Condition shown in Figure 18) 1
When the handle member 14 and the hook member 12 rotate,
The connecting member 25 rotates around the axis of its protruding pin 28, and its pin 26 remains in contact with the abutting portion 32.

When attempting to disable unlocking of a locking device,
State t in which the first and second seat backs 5 and 5a are locked
After straining, open the trunk lid (Fig. 1), grasp the grip 43 of the operating member 38 from outside the vehicle, and remove the operating member 38.
15 in the counterclockwise direction. Due to the stiffness, the first link 36 is pulled rearward (in the direction of arrow A), and the first operating lever 24 rotates around the first pivot pin 23 in the counterclockwise direction in FIG. 15, which is indicated by the chain line in FIG. When the actuating lever 24 reaches the position shown (second position), the actuating lever 24 is held in this second position by the cooperative action of the torsion coil spring 33 and the stopper 35, as in the previous embodiment. When the pin 26 rotates to the second position like a child chain, the connecting member 25 is also pulled to the 19th position shown in the figure.That is, the pin 26 moves toward the rear end 45 of the elongated hole 29. As a result, the pin 26 is removed from the abutting portion 32 of the hook member 12.

Therefore, the integral connection state between the hook member 12 and the handle member 14 is released.

On the other hand, by rotating the actuating member 38 as described above, the second link 36^ of the twentieth locking means 103a is pushed forward (in the direction of arrow B) as shown in FIG. Therefore, the second actuating lever 24a is connected to the second pivot pin 23a.
, in a counterclockwise direction, to reach the second position indicated by the chain line. Thus, just as in the case of the tenth hooking means 103, the second pin 26a of the second connecting member 25a comes off the second abutting portion of the second hook member 12a, and the second hook member 1, 2a and the second pin 26a are separated from each other. The connection with the second handle member 14a is released.

When the first and twentieth gripping means 103, 103a are in the above-mentioned state, grip the first or second grip 13°138 and turn the first or second handle member]4°14a in the counterclockwise direction in FIG. Even if the first or second hook member 12+12a and the first or second handle member 14, 142 are rotated to Alternatively, the second handle member 14.14a is pivotable, but the first or second hook member 12.12a
Is the first or second latching member 15.15a? It will not rotate while being engaged (Fig. 20). Thus, by simply operating one operating member 38, the first and twentieth locking means 103, 103a are both prevented from unlocking, making it impossible to fold down the seatback 5.5ai from inside the vehicle.

Rotate the actuating member 38 in the clockwise direction t in FIG. 15 to return the first and second actuating levers 24, 24a to the first position, and remove the pin 26 of the connecting member 25.25a.
Although the advantageous embodiments of the present invention have been described above, the present invention is not limited to the Jje embodiment t and can be modified in various ways. For example, in the embodiments shown in FIGS. 1 to 13, the link 36 and the actuating member 38 that are pivotally connected to the actuating lever 24 may be omitted, and the actuating lever 24 may be directly actuated by the operator. You can also do it.

As can be understood from the above explanation, according to the present invention,
The intended purpose can be achieved with a simple configuration.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram schematically showing the rear part of a passenger car equipped with a locking device according to the present invention, FIG. 2 is a plan view of the locking device, and FIG. 3 is a first cross-sectional view taken along the line ■-■ in FIG. 4. An exploded perspective view showing only the components taken out; FIG. 5 is a sectional view similar to FIG. 3 showing the locking device in an unlocked state; and FIG. FIG. 7 is a sectional view similar to FIG. 3 explaining the operation, FIG. 7 is a sectional view similar to FIG. 3 explaining the state when the handle member is rotated from the state shown in FIG. 6, and FIG. A plan view of the locking device in the second embodiment, FIG. 9 is a plan view of the locking device shown in FIG.
An exploded perspective view showing only the main components of the device, No. 10
The figure is a sectional view taken along the line X-X of Figure 8, Figure 11 is a sectional view similar to Figure 10 when unlocking, and Figure 12 is Figure 10 explaining the operation when unlocking is disabled. 13 is a sectional view similar to FIG. 1O showing a state in which the handle member has been rotated from the state shown in FIG. 12, and FIG. 14 is a sectional view similar to FIG. 15 is a plan view of the locking device in Example t shown in FIG. 14, FIG. 16 is a sectional view taken along the line Y-X in FIG. 15,
FIG. 17 is a sectional view similar to FIG. 18, showing only the main components of the locking device shown in FIG. 15, and illustrating the operation when the locking device is disabled. FIG. 20 is a sectional view similar to FIG. 19 illustrating a state when the handle member is rotated from the state shown in FIG. 19; 2...Rear seat 3...Lock device 5, 5a...Nut base 12, 12a...Hook member 1, 4, 14 a...Handle member 15, 1
5a... Latching members 21, 218... Unlocking inhibiting means 24, 248... Operating levers 25, 25a... Connecting members 36, 36a... Links 38... Operating members 103, 103a. ... Locking means JP-A-59-149833 (13)

Claims (4)

[Claims] (1) A hook member provided on a tiltable seat back; a hook member that is rotatably supported in a state where it can be engaged and detached from the hook member; the same rotation as the hook member; The handle member is attached to the support 1 to allow full rotation of the moving axis;
and an unlocking inhibiting means operable between a first position where the handle member and the hook member are connected so that they can rotate together, and a second position where the connection is completely released. A locking device for vehicle use. (2) The unlocking inhibiting means is rotatably supported toward the vehicle body, connects the actuating lever with the actuating lever, and engages and disengages with the hook member. The locking device according to claim 1, comprising a connecting member. (3) The locking device according to claim 1, wherein the unlocking inhibiting means includes an operating lever rotatably supported on the handle member in a state that the unlocking inhibiting means can be engaged with and disengaged from the hook member. . (4) Two divisions are provided on one side of the seat back which can be tilted separately and independently from each other at n, and T'L7. ::first latching member,
A first hook member is rotatably supported in a state in which it can be retained and detached from the first hook member, and a first hook member is rotatably supported on the same rotation axis as the first hook member. a first handle member; a first position in which the first handle member and the fil'L1 hook member are connected so that they can rotate together; and a second position in which the connection is released; a first unlocking inhibiting means operable to open the lock with a sound; a tenth locking means having a first link pivotally connected to the first unlocking inhibiting means; provided on the other seat back, a T'L7. :jM2 latching member, a second hook member rotatably supported in a state in which it can be engaged with and disengaged from the second latching member, and a second hook member that rotates 1/t times on the same rotational axis as the second hook member. Movable Vr, bearing ζ, T'L
'f: iR2 handle member, the second handle member and the second hook member are designed so that they can rotate integrally.
Parts? a second unlocking inhibiting means operable to open a first position for coupling and a second position for releasing the coupling; 20 link means; and 1 eyebrow pivotably attached to the first link and the second link. A vehicle support groove comprising a rotatable operating member;
a P first actuation lever, the first actuation lever being coupled to the first handle member and secured to the VC711 hook member;
Claim 5 comprising a detachable first connecting member
Claims include: a second actuating lever, a second connecting member that connects the second actuating lever and the second handle member, and is capable of being engaged with and detached from the second hook member; The locking device according to item 4 or 5.