JPH0327476Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a reclining device for a vehicle seat (automobile seat), and more specifically relates to an improvement in the lock release mechanism of the reclining device.

(Prior Art) In an automobile seat, a seat back and a seat cushion are connected via a reclining device so that a seated person can freely change the sitting posture according to their body shape or preference. The inclination can be adjusted. An example of a lock release mechanism for this type of reclining device is shown in FIGS. 7 to 10.

In the figure, reference numeral 1 denotes a seat bag of an automobile seat, which is formed to be tiltable with respect to a seat cushion (not shown). Inside this seat bag 1,
A locking mechanism 2 is installed for adjusting the reclining device. Further, a lock release mechanism 3 is attached to the seat bag 1, and the lock mechanism 2 is released by operating the lock release mechanism 3. The lock release mechanism 3 has an operating knob 4 protruding from the top of the seat back 1 for operation by the occupant, and is provided with a rod 5 for connecting the operating knob 4 and the lock mechanism 2. By operating the rod 5 up and down, the rod 5 moves up and down to release the lock mechanism 2.
An operating knob 4 forming the lock release mechanism 3 is disposed within a guide bracket 1a provided at the top of the seat bag 1, a cushion member 1b at the top of the seat bag 1, and a hole 6 formed in the skin 1c. That is, the operation knob 4 passes through the guide bracket 1a, the cushion member 1b, and the ring member 7 of the skin 1c, and its bulging portion 4a projects to the top of the seat bag 1 (see FIGS. 7 and 8).

Further, the lock release mechanism 8 shown in FIGS. 9 and 10 has the same structure as described above, but the rod 10 below the operation knob 4 is inserted into the guide bracket 9, and the guide bracket 9 holds the rod 10. This prevented Rod 10 from swinging.

(Problems to be Solved by the Invention) The reclining device for an automobile seat having the above structure is arranged so that the operating knob 4 and the rods 5 and 10 forming the rod release mechanisms 3 and 8 are connected to the cushion member 1b of the seat back 1 and the ring of the outer skin 1c. It is held by a member 7 and guide brackets 1a and 9, and when the seat bag 1 vibrates while the car is running, the operation knob 4
When the ring member 7 of the skin 1c or the guide brackets 1a and 9 came into contact with each other, an abnormal noise was generated, and the passenger could not enjoy a comfortable driving feeling.

This invention was made to solve this problem, and eliminates the occurrence of abnormal noises when the seat bag vibrates when the car is running, without causing contact between the seat bag operating knob and the ring member on the skin or the guide bracket. To provide a reclining device for a car seat which can prevent the above and provide a comfortable driving feeling.

(Means for Solving the Problem) This invention connects a locking mechanism disposed inside the seat bag that locks the tilting state of the seat bag to an operation knob provided in a hole at the top of the seat bag via a connecting member. The operation knob of the lock release mechanism for releasing the engagement state of the lock mechanism, or the operation knob and the connecting member, is supported by a tongue piece formed on the cushion member of the seat bag.

(Function) In this invention, since the operation knob of the lock release mechanism or the operation knob and the connecting member are supported by the tongue piece formed on the cushion member of the seat bag, even if the seat bag vibrates while driving, the operation knob will not move during driving. Also, since the connecting member does not vibrate and come into contact with its surroundings, it is possible to prevent abnormal noises from being generated due to vibrations between the operation knob and the connecting member.

(Example) An example of this invention is shown in Figures 1 to 6.
This will be explained based on the diagram. In the figure, 11 is a car seat, with a seat back 12 and a seat cushion 13.
It has A seat cushion 13 is attached to the seat back 12 via a reclining device, so that the seat back 12 can be tilted relative to the seat cushion 13. The seat back 12 is provided with a lock mechanism 14 for locking the reclining device, and a lock release mechanism 15 for releasing the lock mechanism 14. This lock release mechanism 15 has a rod 16 for connecting the lock mechanism 14 and the upper part of the seat bag 12, and an operating knob 17 for operating this rod 16.
The operating knob 17 is disposed in a hole 18 formed at the top of the seat bag 12, and its upper end 17a projects above the upper surface of the seat bag 12. The operation knob 17 is disposed in a hole 18 formed in the skin 12a of the seat bag 12 and the cushion member 12b, and a rod 16 connected thereto is a guide bracket 19 disposed below the cushion member 12b.
will be inserted into. Note that a ring member 1 is attached to the epidermis 12a.
2c is attached, and the operation knob 17 is inserted through the inside thereof.

Furthermore, the lower end 17b of the operation knob 17 is supported by a tongue piece 20 formed on the cushion member 12b. The tongue piece 20 is formed at the lower part of the cushion member 11b, and has a tongue hole 20a having an inner diameter smaller than the hole 18 and approximately the same diameter as the lower end portion 17b of the operation knob 17.

This tongue piece 20 supports the lower end portion 17b of the operating knob 17 and restricts the movement of the operating knob 17 in the left-right direction in the drawing.

According to the reclining device for a car seat having the above configuration, the tongue piece 20 is formed on the cushion member 11b of the seat bag 11, and the lower end portion 17b of the operating knob 17 is inserted into the tongue hole 20a of the tongue piece 20. Since the operation knob 17 does not come into contact with the ring member 11c of the skin 11a and the guide bracket 19, even if the seat bag 11 vibrates while the car is running, the operation knob 17 does not shake. It is possible to prevent the occurrence of abnormal noise caused by the vehicle, and it is possible to perform comfortable driving.

A second embodiment of this invention will be explained based on FIGS. 4 to 6. Basically, the configuration is substantially the same as that of the previous embodiment, but in this embodiment, the arrangement of the tongue piece 22 formed on the cushion member 21a of the seat bag 21 is different from that of the previous embodiment. In this embodiment, the tongue pieces 22 are formed on the cushion member 21a at different levels, and the operating knob 23
The rod 24 is laterally abutted and supported by the tongue piece 22.

According to this reclining device for a car seat, the operating knob 23 and rod 24 forming the lock release mechanism can be reliably supported by the tongue piece 22 formed on the cushion member 21a, so even if the seat back 21 vibrates, the operation cannot be performed. knob 23
And it is possible to prevent the rod 24 from swinging,
It is possible to prevent abnormal noises from occurring during driving.

(Effects of the invention) As explained above, in this invention, a locking mechanism for locking the tilting state of the seat bag disposed inside the seat bag is connected via a connecting member to an operation knob provided in a hole at the top of the seat bag. By using a simple structure in which the operation knob of the lock release mechanism that releases the engagement state of the lock mechanism is supported by a tongue piece formed on the cushion member of the seat bag, sideways shaking of the operation knob can be prevented, and abnormalities can be prevented. The effect is that a reclining device for a car seat that does not generate noise can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a car seat showing an embodiment of this invention, Fig. 2 is a partially cutaway front view of the car seat shown in Fig. 1, and Fig. 3 shows the main parts of Fig. 2. FIG. 4 is an enlarged front view, FIG. 4 is a perspective view of the seat bag showing the second embodiment, FIG. 5 is an enlarged perspective view of the main part of FIG. 4, and FIG. FIG. 7 is a perspective view of a car seat showing a conventional device; FIG. 8 is a partial cross-sectional view of an enlarged main part of FIG. 7; FIG. 9 is a car seat showing a conventional device. 10 is a perspective view of the 9th
FIG. 3 is an enlarged perspective view of the main part of the figure. In the figure, 12 and 21 are seat bags, 14 is a lock mechanism, 15 is a lock release mechanism, 16 and 24 are rods, 17 and 23 are operation knobs, and 20 and 22 are tongue pieces.

Claims (1)

[Claims for Utility Model Registration] (1) A seat back that is tiltably attached to a seat cushion or a vehicle body, a lock mechanism provided within the seat bag to lock the tilted state, and a hole in the top of the seat bag attached to the lock mechanism. In the reclining device for a vehicle seat, the lock releasing mechanism is connected to a provided operating knob via a connecting member and releases the engaged state of the locking mechanism by operating the operating knob. A reclining device for a vehicle seat, characterized in that a tongue piece extending in the lateral direction is formed, and the tongue piece abuts on the operating knob or the operating knob and the connecting portion. (2) The reclining device for a vehicle seat according to claim 1, wherein the tongue pieces are formed at different levels.