JPH0130924Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a movable headrest for a vehicle seat. More specifically, the present invention relates to a movable headrest for a vehicle seat. More specifically, the present invention relates to a movable headrest for a vehicle seat that is movable in the width direction along a fixed rail extending in the upper width direction of the seat bag. Regarding a movable headrest.

In general, most vehicle seat headrests can be adjusted up and down according to the physique and preferences of the occupant, but there are few that can be adjusted quickly by a simple mechanism in the width direction of the seat back. Particularly in the rear seat, since a driving position is not required, the head is often moved widely in the left and right direction, and therefore a wide and large head rest is often used. However, when a wide and large headrest is used, the driver's rear visibility becomes narrow, increasing the danger.

The purpose of this invention is to allow the headrest to be easily moved and adjusted in the width direction of the seatback, to use the headrest at a desired position above the seatback without making the headrest large, and to allow passengers seated in the rear seat to move and adjust the headrest easily. A movable vehicle seat that allows the headrest to be moved to a position where it does not interfere with driving when there is no seat, expands the driver's rear visibility, and provides a simple and reliable locking mechanism. This will be described in detail below with reference to the drawings.

1 and 2 schematically show an embodiment of a movable headrest for a vehicle seat according to the present invention, and the movable headrest 1 includes a headrest main body 2 and a headrest supporting the headrest main body 2. It is composed of a stay 3.

A fixed rail 6 extending in the width direction is fixed to the seat back frame (not shown) or the like on the upper part of the seat back 5, and a movable member 7 is fitted into this fixed rail 6 and slides along the fixed rail 6 in the width direction. It is designed to be movable. In this embodiment, the vertical plate portion 7a of the movable member 7 is provided on the back side of the fixed rail 6.
Brackets 8 are formed on both sides of this vertical plate portion 7a.

A horizontally extending pivot pin 9 is pivotally supported on the bracket 8, and a midway portion of the headrest stay 3 is fixed to this pivot pin 9 by welding or the like. Alternatively, a shaft may be fixed to the bracket 8, and a cylindrical pivot pin 9 may be pivotally supported on the shaft.

A lock plate 11 is fixed to the lower part of the fixed rail 6, and a plurality of lock protrusions 12 are formed on the lock plate 11 so as to protrude toward the rear side. Further, the locking protrusion 1 is located at the bottom of the headrest stay 3.
A locking groove 13 is formed which can selectively engage with the locking groove 2. The locking protrusions 12 of the locking plate 11 and the locking grooves 13 of the headrest stay 3 can have opposite configurations, and if the spacing between the locking protrusions 12 is made extremely small, fine adjustment in the width direction is also possible. It is.

A spring 14 is provided that biases the headrest stay 3 in the direction of engaging the locking protrusion 12 of the locking plate 11 with the locking groove 13 of the headrest stay 3, so that the headrest body can be adjusted to the optimum position in the normal seating state. It is set to come into position. Therefore, when the load of the seated person is applied from the direction of arrow a in FIGS. 1 and 2, the locking groove 13 at the lower part of the headrest stay 3 is in the direction in which it is firmly engaged with the locking protrusion 12 of the locking plate 11. Pressed by

The above is the configuration of one embodiment of the movable headrest for a vehicle seat according to the present invention. Assuming that the headrest main body 2 is located approximately at the center of the seat back 5, the headrest main body 2 is shown in FIGS. When pressed forward as shown by arrow b in Figure 2 against the bias of the spring 14, the lock groove 13 at the bottom of the headrest stay 3 moves in the unlocking direction shown by arrow c around the pivot pin 9. Lock plate 1
The engagement with the first locking protrusion 12 is released. When the headrest main body 2 is pressed in the left-right direction of the seat bag 5 in this unlocked state, the movable member 7 moves in the left-right direction along the fixed rail 6.

Therefore, the headrest main body 2 can be moved at the desired position.
Release the horizontal pressure on the headrest body 2.
When the forward pressure is released, the biasing force of the spring 14 moves the locking groove at the bottom of the headrest stay 3 in the direction of engagement with the locking protrusion 12 of the locking plate 11 on the fixed rail 6 side, and the headrest stay 1 can be maintained in a normal usable state.

According to the movable head rest of a vehicle seat according to the present invention, the head rest can be easily moved and adjusted in the width direction of the seat bag, and the usability similar to that of a large head rest can be obtained without increasing the size of the head rest. A movable headrest for a vehicle seat that can improve safety by expanding the driver's rear visibility, has a simple mechanism, is easy to operate, and can securely lock the seat. You can get it.

[Brief explanation of the drawing]

1 and 2 schematically show an embodiment of a movable headrest for a vehicle seat according to the present invention, with FIG. 1 being a rear perspective view and FIG. 2 being a side explanatory view. In the figure, 1...movable headrest, 2...headrest body, 3...headrest stay, 5...
Seat back, 6...Fixed rail, 7...Movable member, 8...Bracket, 9...Pivot pin, 11...
...Lock plate, 12...Lock protrusion, 13...Lock groove, 14...Spring.

Claims (1)

[Scope of utility model registration request] The seat bag includes a fixed rail extending in the width direction of the seat bag, and a movable member that fits into the fixed rail and is movable in the width direction, a bracket is formed on the movable member, and the seat bag is pivoted on the bracket. The middle of the headrest stay supporting the headrest body is attached to a pivot pin extending in the horizontal direction, and a lock plate is fixed to the lower part of the fixed rail along the longitudinal direction, and the lock plate has a part that protrudes toward the rear side. A plurality of locking protrusions or locking grooves are formed, and the lower part of the headrest stay is adapted to fit with the locking protrusions or locking grooves of the locking plate, and the lower part of the headrest stay is connected to the locking plate. A spring is disposed that urges the lock plate in the forward direction to be engaged, and the engagement between the lock plate and the lower part of the headrest stay is released by rotating the headrest main body in the forward direction based on the urging force of the spring. A movable headrest for a vehicle seat, characterized in that it is configured to be able to move.