JPH0247872Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a headrest device for a vehicle seat, and more particularly to a headrest device in which the headrest can be folded down in the longitudinal direction of the seat bag.

[Prior art]

This type of headrest device was developed to ensure a wide field of view for rear seat occupants.It is installed on the seat back of the front seat and when no one is seated in the seat, the headrest can be folded down to provide a wide field of vision. It is becoming secured. An example of this is shown in Japanese Unexamined Patent Publication No. 14530/1983.

[Problem that the invention attempts to solve]

In this way, this type of headrest device is installed in the seatback of the front seat, so for those seated in the rear seat who wish to secure a wide field of view, the headrest device is right in front of them and they have to operate the headrest to fold down. Since this is easy, no headrest device has been proposed that allows the headrest to be lowered by remote control.

However, there are cases where the driver of the vehicle wants to lower the headrest of the rear seat to ensure a wide field of view to the rear, and in such a case, it is desirable to configure the headrest so that it can be lowered by remote control.

[Means for solving problems]

In order to deal with such problems, the present invention has a headrest device that is attached to a fixed bracket provided on the back frame of a seat bag so that its lower end can be rotated in the front and back direction, and a stay that supports the headrest at its upper end is fixed. a rotating bracket; a locking means provided between the two brackets for releasably fixing the rotating bracket to the fixed bracket to restrict forward rotation of the rotating bracket; a spring means provided between the two for biasing the pivot bracket forward;
A release operation means is provided on the other seat side and connected to the locking means to release the rotation bracket from the fixed bracket.

[Functions and effects of the idea]

As a result, in the present invention, the forward rotation of the rotating bracket is restricted by the action of the locking means, the stay and the headrest integrated with the stay are erected, and the headrest is positioned at the top of the seat bag to restore the seat back to its original position. It can have a function. In addition, by operating the release operation means provided on the other seat side, the locking means releases the locking means from restricting the rotating bracket from rotating forward relative to the fixed bracket, and the rotating bracket automatically moves under the biasing force of the spring means. Rotate forward to lower the headrest forward.

Therefore, according to the present invention, it is possible to lower the headrest by remote control, and if such a headrest device is installed in the seatback of the rear seat, the driver can easily operate the headrest to lower it in order to secure a wide field of view to the rear. It can be done easily.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a headrest device according to an embodiment of the present invention. As shown in Fig. 4, the main body of the headrest device is assembled to the seat back Sr1 of the rear seat Sr of the vehicle, and when the driver is seated on the front seat Sf, the headrest 10a constituting the device is folded forward. This ensures that the driver has a wide field of vision directly behind him or through the interior mirror m.

Therefore, the headrest device is headrest 1.
0a, a support mechanism 10b that supports this, a locking means 20a, a spring means 20b, and a release operation means 20c.

The headrest 10a is located at the top of the seatback Sf1 of the rear seat Sr and supports the rear side of the head of the person seated in the rear seat Sr.
It is supported by a support mechanism 10b assembled to a back plate Sr2 that constitutes Sr1. This support mechanism 10b includes a plate-shaped fixed bracket 11 fixed to the upper center of the back plate Sr2 and facing forward, and a plate-shaped rotating bracket 11 attached to the front surface of the bracket 11 so that its lower end can be rotated in the front-rear direction. It is fixed by a bracket 12 and a pair of left and right stays 13a and 13b that are fixed to both sides of the front surface of the bracket, project upward, and support the headrest 10a at their upper ends. As a result, the headrest 10a is placed in the first position.
As shown by the solid line and the two-dot chain line in the figure, it rotates in the front-rear direction integrally with both stays 13a, 13b and the rotation bracket 12.

The locking means 20a includes a locking lever 21, a torsion spring 22, and a striker 23 to releasably fix the rotating bracket 12 to the fixed bracket 11 to restrict forward rotation of the rotating bracket 12. It is configured. The lock lever 21 is rotatably supported in the vertical direction by a support pin 24a on the back of the fixed bracket 11 and extends to the right, and is always urged in the direction of the second arrow A in the figure by the action of a torsion spring 22. It is held in a substantially horizontal state by a release operation means 20c, which will be described later. The striker 23 is provided so as to protrude rearward at approximately the center of the back surface of the rotating bracket 12, and is capable of moving forward and backward into a circular hole 11a opened in the fixed bracket 11 opposite thereto. When this striker 23 is inserted into the circular hole 11a, its hook portion 23a engages with the upper edge of the lock lever 21, fixing the rotating bracket 12 to the fixed bracket 11 and preventing forward rotation. control and keep it in an upright position. Incidentally, rubber stoppers 24b, 24b are provided protruding from both upper sides of the rear surface of the rotating bracket 12. These stoppers 24b, 24b prevent play between the two brackets 11, 12.

The spring means 20b consists of a compression spring housed and fixed in a recess 11b opening approximately in the upper center of the front surface of the fixed bracket 11. In the free state, the spring means 20b protrudes forward from the fixed bracket 11 and is attached to the rotating bracket. 12 is fixed to the fixed bracket 11, it is pressed and compressed by the rotating bracket 12.

The release operation means 20c consists of an operation wire 25 and an operation lever 26, and both ends of an outer tube 25a constituting the operation wire 25 are fixed to the fixed bracket 11 side and the bracket 24c side provided on one side of the front seat Sf, respectively. There is. In addition, an inner wire 25 constituting the operation wire 25
Both ends of b are the lock levers 21 of the locking means 20a.
and the operating lever 26 attached to the bracket 24c, respectively. The operating lever 26 is attached to the bracket 24c so as to be rotatable in the vertical direction, and is in the downward movement position by the biasing force of the torsion spring 22 of the locking means 20a. Also, in this state, the lock lever 21
is held in a horizontal state against the biasing force of the torsion spring 22.

In a headrest device configured in this way, normally, as shown in FIGS. 1 and 4, a rotating bracket 12 and a stay 1 integrated therewith are provided.
3a, 13b, and the headrest 10a are in an upright state. At this time of standing up, the striker 23 protruding from the rotating bracket 12 enters through the circular hole 11a of the fixed bracket 11 and engages with the lock lever 21, fixing the rotating bracket 12 to the fixed bracket 11 and locking the rotating bracket 12. It restricts forward rotation. Further, the compression spring serving as the spring means 20b is compressed by being pressed by the rotating bracket 12.

In the headrest device in this state, when the driver seated on the front seat Sf rotates the operating lever 26 upward as shown by the arrow in FIG. 4, the inner wire 25b of the operating wire 25
is pulled, and the lock lever 21 rotates downward. As a result, the striker 23 moves to the lock lever 2.
1, the rotation bracket 12 is moved between both stays 13 by the repulsive force of the compression spring 20b.
a, 13b and the headrest 10a, and are rotated forward as shown by the two-dot chain line in FIGS. 1 and 4. Therefore, the driver can secure a wide field of vision to the rear through the rear window. Note that when the rotation operation of the operating lever 26 is released, the lock lever 21 returns to rotation due to the biasing force of the torsion spring 22, and at the same time, the operating lever 26 returns to rotation via the inner wire 25b.

When it is desired to make the headrest 10a function, the headrest 10a, which is in the state indicated by the two-dot chain line in FIGS. 1 and 4, is rotated rearward and raised.
As a result, the stays 13a, 13b, which are integral with the headrest 10a, and the rotating bracket 12 rotate integrally, and the striker 23 of the rotating bracket 12 enters the circular hole 11a of the fixed bracket 11 and engages with the lock lever 21. do. As a result, the rotating bracket 12 is fixed to the fixed bracket 11 and its forward rotation is restricted, and the headrest 10
a is held at the top of the seat bag Sr1 and performs its original function.

In this way, in this embodiment, the rear seat
Since the headrest 10a assembled to Sr can be folded down while the driver is seated on the front seat Sf, the driver can easily operate the system to ensure a wide field of view to the rear, and is extremely user-friendly.

Note that the head restraint device according to the present invention can of course be used by being attached to the seat back of the front seat Sf on the passenger's seat side, and in this case, the operating lever 26 can be attached to the rear seat Sr side or the front seat on the driver's seat side. provided.

[Brief explanation of the drawing]

Fig. 1 is a side view of a head restraint device according to an embodiment of the present invention, Fig. 2 is a front view of the device, Fig. 3 is a front perspective view of the device, and Fig. 4 is a view of the front seat and rear seat. FIG. 3 is a schematic diagram showing the positional relationship. Explanation of symbols, 10a...Headrest, 10b
...Support mechanism, 11...Fixing bracket, 12...
...Rotating bracket, 13a, 13b...stay,
20a...Lock means, 21...Lock lever,
22... Torsion spring, 23... Striker, 20b... Compression spring, 2
0c...Release operation means, 25...Operation wire, 2
6...Operation lever.

Claims (1)

[Scope of utility model registration request] A rotating bracket is attached to a fixed bracket provided on the back frame of the seat bag so that its lower end can be rotated in the front-rear direction, and a stay supporting the head rest at the upper end is fixed thereto, and the fixed bracket is provided between these two brackets. a locking means for releasably fixing the rotating bracket against the rotating bracket and restricting forward rotation of the rotating bracket; and a spring provided between the two brackets for biasing the rotating bracket forward. and a release operation means provided on the other seat side and connected to the locking means to release the locking of the rotating bracket from the fixed bracket.