JPH0522117Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a vehicle seat device, and particularly to a double-sided locking reclining device.

[Prior Art] Generally, a seat device for a vehicle such as an automobile is provided with a reclining device that allows the seat back of the seat to tilt in the front-rear direction so that the occupant can take a comfortable and optimal seating posture. This reclining device consists of an arm rotatably supported by a base plate fixed to a seat cushion, which is fixed to a seat back so as to be tiltable at a predetermined angle via a reclining operation mechanism attached to the base plate. . The reclining operation mechanism consists of a tooth member that is integrally connected to one end of the arm or the arm, and a ratchet that is pivotally supported on the base plate so that it can be engaged with and detached from the tooth member. This configuration includes an operating lever.
The operating lever is provided with a cam that engages and disengages from the ratchet, and is rotatably supported by the base plate (see Japanese Utility Model Publication No. 55-51310 and Japanese Utility Model Publication No. 62-34840).

Ideally, this type of reclining device would be provided as a pair on both the left and right sides of the seat, but in order to reduce the cost of the seat device, a simple hinge device is often used on either the left or right side. However, when either one is replaced with a simple hinge device, when the weight of the seated person is applied to the seat back due to inertia due to an increase in vehicle speed, the seat back twists toward the hinge device, resulting in an unfavorable seating sensation. There is.

Therefore, in recent years, reclining devices are often disposed symmetrically on both the left and right sides of the seat. However, when the reclining devices are disposed on both the left and right sides of the seat in this way, when tilting the seat back, each reclining device has a tooth member, so it is necessary to disengage or lock the tooth members. Since it is troublesome to have to operate the left and right mechanisms separately, a configuration is adopted in which when one of the left and right mechanisms is operated, the other moves in conjunction with the operation. As for this interlocking structure, the left and right reclining devices may have the same structure, and the axes of their operating levers may be connected to each other by a shaft so that they can be interlocked, but in general, it is possible to interlock them using wires. many. According to the configuration in which they are interlocked using wires, a relationship between the pulling side and the pulled side cannot help but be established.
Conventionally, the left and right reclining devices were configured to be symmetrical, that is, the movements of the left and right reclining devices were completely opposite, or by routing the wire to the rear of the bottom of the seat cushion.
The reclining device had the same configuration on both the left and right sides.

[Problems to be solved by the invention] However, according to the above-mentioned configuration in which the reclining device is connected using wires, if a reclining device with a symmetrical configuration is adopted, there will be two production lines, which will be expensive. If a reclining device having this configuration is adopted and the wire is routed to the rear and lower part of the seat cushion, there are disadvantages such as narrowing the leg space for a person sitting in the rear seat.

Therefore, if a reclining device with the same configuration on the left and right sides is used and the wire is routed below the front of the seat cushion, the relationship between the pulling side and the pulled side will not be established in the left and right reclining devices. As described above, when the operating lever of the main reclining device is rotated and the wire is pulled, the wire must push the operating lever of the secondary reclining device to rotate it. However, the configuration in which the control lever of the secondary reclining device is rotated by pushing it with a wire is complicated, inevitably leading to increased costs, and is also impractical.

On the other hand, there are two types of reclining devices: one in which the operating lever is rotated by manual operation, and the other in which the operating lever is rotated by pressing the pedal with the foot (see Utility Model Application Publication No. 55-51310). If this configuration is adopted, it is desirable to be able to use a foot-operated type as well.

This invention was devised in view of the above-mentioned circumstances, with the purpose of providing a vehicle seat device in which a pair of reclining devices having the same configuration on the left and right sides can be interlocked with each other on both the left and right sides of the seat.

[Means for Solving the Problems] In order to solve the above problems, this invention provides a pair of reclining devices with the same configuration on both the left and right sides of the seat bag, and configures the operation levers of the reclining devices to be interlocked by a wire. According to
In a vehicle seat device in which when the main reclining device is operated, the secondary reclining device is linked and the seat back can be unlocked and locked.
A back lever that is coaxial with the ratchet and rotates in conjunction with the operating lever is rotatably attached to the main reclining device, and one end of a wire is connected to the back lever, and the other end of the wire is connected to the back lever. This is a vehicle seat device characterized in that an end portion is connected to an operating lever of the secondary reclining device or a lever replacing it.

[Operation] According to the above structure of this invention, when the operating lever of the main reclining device is operated, the operating lever of the secondary reclining device or a lever replacing it rotates in the same direction, and both the main and secondary reclining devices perform the same operation. to unlock and lock.

[Example] Next, an example of this invention will be described based on the drawings. Figure 1 is a perspective view showing the main parts of this invention, Figure 2
The figure is a front view of the main reclining device, and FIG. 3 is a side view of the secondary reclining device. As shown in the figure, a tooth member 4 is integrally fixed to an arm 3 rotatably attached to the base plate 1 via a shaft 2, and a tooth portion 5a that meshes with a tooth portion 4a of the tooth member 4. A ratchet 5 having a ratchet 5 is pivotally attached to the base plate 1 so as to be rotatable about a shaft 6. The ratchet 5 includes a cam convex portion 5b and a cam concave portion 5.
A cam 7 that engages and disengages from the operating lever 8 is pivotally attached to the base plate 1 via a shaft 9 integrally with the operating lever 8. One end of a spring 10 is connected to the operating lever 8, and the other end of the spring 10 is connected to the base plate 1, so that the operating lever 8 is always urged to rotate counterclockwise. The shafts 2, 6, and 9 are each fixed at one end to the base plate 1 and at the other end to the reinforcing plate 11. In particular, the shaft 2 is elastically loaded with a spring 12 that urges the arm 3 to rotate counterclockwise. has been done. On the other hand, the second
As shown in the figure, one end of a link 13 is rotatably attached to the operating lever 8 via a shaft 13a, and the other end of the link 13 is attached to a lever portion 14a of a back lever 14 via a shaft 13b. It is rotatably attached via the shaft. The back lever 14 is the shaft 6
It is pivotally supported by the base plate 1 so as to be rotatable around the center, and has two branched lever parts 14a and 14b. The lever portion 14b has an end bent at a right angle to form a rising portion 14c, and one end portion of a wire 16 is connected to the rising portion 14c via a ball end 15. The wire 16 is
Support bracket 1 attached to the side of base plate 1
It extends inside the base plate 1 through the guide tube 22a supported by the guide tube 22a and the tube 22 that follows it, and passes through the front lower part of the seat cushion frame 19 on which the seat cushion 18 is mounted to the secondary reclining device 20 on the other side. connected.
The secondary reclining device 20 has the same configuration as the main reclining device, but as shown in FIG. The other end of the wire 16 is connected to the end. Note that the tube 22 of the wire 16 is attached to a mounting bracket 17 fixed to the base plate 1a.
It is supported by a. The base plate 1a has a different length from the base plate 1,
It has substantially the same configuration as the base plate 1, and the arm 3 is rotatably biased and pivoted. Seat back frames 23 are connected to the arms 3 as shown in phantom lines in FIG. 1, and a seat back 24 is attached to the arms 3. Reference numeral 25 denotes a cushion spring stretched on the seat cushion frame 19.

To explain the operation of the above embodiment, when tilting the seat back 24, the operating lever 8 of the main reclining device is rotated clockwise about the shaft 6 as shown by the phantom line in FIG. , the cam 7 integrated with the operating lever 8 is the ratchet 5.
By engaging the cam recess 5c of the latch 5 and rotating the ratchet 5 counterclockwise, the tooth member 4 and the teeth 4a, 5a of the ratchet 5 are disengaged, and the arm 3 then rotates the shaft 2. Spring 12 as the center
Rotates in the direction urged by. At this time, the link 13 whose one end is connected to the operating lever 8 is pulled to the left in the figure, and this causes the back lever 14 to be connected to the shaft 6.
The lever part 14b rotates clockwise around the lever part 14b.
pulls the wire 16 upward in the figure. wire 1
6 is pulled, the lever 21 of the secondary reclining device 20 is pulled and rotated in the same manner as the operating lever 8, and the ratchet (not shown) of the secondary reclining device 20 is rotated, so that the teeth of the secondary reclining device 20 and the teeth of the tooth member rotate. Since the engagement with the seat back 24 is released, the left and right reclining devices are interlocked to release the lock of the seat back 24. Therefore, when the seat bag 24 is fixed at a desired angle of the seated person, the operating lever 8 is returned to its original position by the force of the spring 10 by releasing the operating lever 8. At this time, back lever 1
4 rotates counterclockwise around the shaft 6, the wire 16 becomes free on the side of the secondary reclining device 20, and as a result, the lever 21 of the secondary reclining device 20, similar to the operating lever 8, corresponds to the spring 10. Since it has a spring, it has the effect of self-returning to its original position. These actions result in
The cam 7 pushes up the cam protrusion 5b and the ratchet 5
When the tooth portions 4a and 5a mesh with each other by rotating clockwise, the set inclination angle of the seat back 24 is locked.

FIG. 4 shows the back lever 14 in the above embodiment.
The lever part 14d for stepping is formed into a different shape, and a pedal 26 is attached to the tip thereof.The other structure is the same as that of the embodiment described above except that the lever part 14a is formed in an L-shape. , and the same reference numerals are used to omit the redundant explanation. It goes without saying that in this embodiment, when the operating lever 8 is rotated, the same effect as in the previous embodiment is obtained, and when the pedal 26 is depressed, the same effect is obtained. Therefore, when getting on or off the vehicle, the occupant in the rear seat can easily push the seat back of the front seat forward.

[Effects of the invention] According to the invention described above, in an interlocking configuration of a pair of reclining devices disposed on the left and right sides of a single seat device, the main reclining device rotates in conjunction with its operating lever. The back lever is provided so as to be rotatable on the same axis as the ratchet, one end of the wire is connected to the back lever, and the other end of the wire is connected to the operating lever of the secondary reclining device or a lever replacing it. When the operating lever of the main reclining device is operated, both the operating lever of the secondary reclining device or the lever that replaces it rotates in the same direction. Therefore, when using reclining devices with the same configuration on the left and right sides, the direction of wire movement can be changed. Because it can be the same,
It is possible to eliminate the waste of creating a reclining device with a bilaterally symmetrical configuration, and it is possible to reduce the cost of the reclining device with both sides. Further, since the back lever is attached coaxially with the ratchet, it does not take up space and can be applied without changing the basic design of the reclining device.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment showing the main parts of this invention, Fig. 2 is a front view showing the structure of the main reclining device, Fig. 3 is a front view showing the structure of the secondary reclining device, and Fig. 4 is a front view showing the structure of the secondary reclining device. FIG. 7 is a front view showing another example of the main reclining device. 1, 1a...Base plate, 2, 6, 9, 1
4...Shaft, 3...Arm, 4...Tooth member, 4
a, 5a...teeth, 5...ratchet, 5b...
Cam protrusion, 5c...Cam recess, 7...Cam, 8...
...Operation lever, 10, 12... Spring, 11... Reinforcement plate, 13... Link, 14... Back lever, 15... Ball end, 16... Wire,
17... Support metal fittings, 18... Seat cushion,
19...Seat cushion frame, 20...Sub-reclining device, 21...Lever, 22...
Tube, 23... Seat back frame, 24
...seat back, 26...pedal.

Claims (1)

[Scope of utility model registration request] A pair of reclining devices with the same configuration is provided on both the left and right sides of the seat back, and the operating levers of the reclining devices are configured to be interlocked with each other by a wire, so that when the main reclining device is operated, the secondary reclining device is interlocked, and the seat back can be unlocked and In a vehicle seat device that can be locked, a back lever that rotates in conjunction with the operation lever of the main reclining device is rotatably attached to the main reclining device coaxially with the ratchet, and one end of a wire is connected to the back lever. connected, and
A vehicle seat device characterized in that the other end of the wire is connected to an operating lever of the secondary reclining device or a lever replacing it.