JP6362649B2 - Vehicle seat - Google Patents

Description

  The present disclosure relates to a vehicle seat and can be applied to a vehicle seat including a seat position adjusting mechanism, for example.

  The vehicle seat is a slide adjuster that adjusts the front and rear position of the seat and the angle of the seat back so that the steering, pedals, levers, and switches can be safely and comfortably operated when the vehicle is driven, and the road can be looked over. It has various adjustment functions that adjust the driving posture according to the occupant's physique, such as a reclining adjuster that adjusts the vehicle. To adjust the front / rear position of the seat using the slide adjuster, pull the operating lever at the lower front edge of the seat to release the seat lock, move the seat in the longitudinal direction of the vehicle, and release the operating lever at the optimal position to lock the seat. ing.

Japanese Utility Model Publication No. 60-125230

A slide adjuster lock release mechanism may be attached to the side surface of the slide adjuster. When there is a space under the vehicle seat, there is a possibility that a load placed on the foot of the rear seat occupant or the floor interferes with the lock release mechanism, and the lock is unexpectedly released.
An object of the present disclosure is to provide a vehicle seat that does not interfere with the lock release mechanism of the slide adjuster.
Other problems and novel features will become apparent from the description of the specification and the accompanying drawings.

An outline of typical ones of the present disclosure will be briefly described as follows.
That is, the vehicle seat includes a seat cushion, a seat back, a slide adjuster that moves and adjusts the seat cushion back and forth, and an upper riser that supports the seat cushion. The slide adjuster includes: an upper rail fixed to the upper riser; a lower rail fixed to a vehicle floor; a lock mechanism that controls front and rear movement of the upper rail; a lock release mechanism that unlocks the lock mechanism; An operation lever disposed on the inner side of the upper rail and a protection member for protecting the lock release mechanism are provided. The unlock mechanism includes a bracket that is interlocked with the operation lever. The lock mechanism includes a stopper that moves up and down by the bracket. The lock release mechanism releases the lock of the slide adjuster by lowering a stopper of the lock mechanism via the bracket. The said protection member is comprised with a wire, and it is comprised so that it may suppress pushing in the said stopper other than operation of the said operation lever.

  According to the vehicle seat, it is possible to prevent interference with the unlocking mechanism of the slide adjuster.

FIG. 1 is a side view of the vehicle seat according to the embodiment. FIG. 2 is a perspective view of the lock release mechanism of the slide adjuster according to the embodiment. FIG. 3 is a perspective view of the lock release mechanism of the slide adjuster according to the embodiment. FIG. 4 is a sectional view of the slide adjuster according to the embodiment. FIG. 5 is a side view of the vehicle seat and the vehicle seat for the rear seat according to the embodiment.

  Examples will be described below with reference to the drawings. However, in the following description, the same components may be denoted by the same reference numerals and repeated description may be omitted. In order to clarify the description, the drawings may be schematically represented with respect to the width, thickness, shape, etc. of each part as compared to the actual embodiment, but are merely examples, and the interpretation of the present invention is not limited to them. It is not limited. In the present specification, directions such as the front-rear direction, the up-down direction, and the left-right direction are the Y-axis positive direction shown in FIG. 1 as the forward direction, the Y-axis negative direction as the rear direction, the X-axis positive direction as the right direction, and the X-axis. The negative direction is defined as the left direction, the positive Z-axis direction is the upward direction, and the negative Z-axis direction is defined as the downward direction.

  First, the structure of the vehicle seat according to the embodiment will be described with reference to FIG. FIG. 1 is a side view illustrating a vehicle seat according to an embodiment.

  The vehicle seat 1 according to the embodiment includes a seat cushion 10 that can move back and forth, a seat back 20 that can tilt with respect to the seat cushion 10, and a headrest 30 that is connected to the seat back 20.

  A pair of left and right slide adjusters 40 for adjusting the front-rear position of the seat cushion 10 relative to the vehicle is provided on the lower surface side of the seat cushion 10, that is, the surface opposite to the seat surface side of the seat cushion 10. Each of the left and right slide adjusters 40 includes an upper rail 41 fixed to the lower surface side of the seat cushion 10 and a lower rail 42 fixed to the floor of the vehicle. The upper rail 41 is fixed to the upper riser 50 below the seat cushion 10. By engaging the upper rail 41 and the lower rail 42 and sliding the upper rail 41 on the lower rail 42, the front-rear position of the seat cushion 10 relative to the vehicle, that is, the front-rear position of the vehicle seat 1 relative to the vehicle can be adjusted. The slide adjuster 40 is provided with an operation lever 43. Using the operation lever 43, the front / rear slide (forward / backward movement) of the upper rail 41 on the lower rail 42 can be operated. Further, by releasing the lock with the operation lever 43, the upper rail 41 can be slid back and forth (moved back and forth) on the lower rail 42.

  Next, details of the slide adjuster will be described with reference to FIGS. FIG. 2 is a perspective view of the unlocking mechanism of the slide adjuster according to the embodiment, and is a view in which a protection member is omitted. FIG. 3 is a perspective view of the unlocking mechanism of the slide adjuster according to the embodiment, and is a view showing the protective member without being omitted. FIG. 4 is a sectional view of the slide adjuster according to the embodiment.

The left slide adjuster 40 has a lock mechanism 44 for restricting the forward / rearward movement of the upper rail 41 and an engagement portion interlocked with the operation of the U-shaped operation lever 43 to release the restriction of the forward / backward movement of the upper rail 41. An unlock mechanism 45 is provided for setting the front and rear positions of the seat 1 to a desired position. The lock mechanism 44 includes a stopper 44a attached to the upper rail 41 and a plate spring 44c that applies a biasing force to the stopper 44a.
The lock release mechanism 45 includes a bracket 45a that operates the stopper 44a and a wire spring 45c that applies a biasing force to both the operation lever 43 and the bracket 45a. The lock release mechanism 45 is disposed near the center of the upper rail 41 in the front-rear direction (broken line circle A in FIG. 1).

  More specifically, as shown in FIG. 4, in the locking mechanism 44, the stopper 44a is normally urged counterclockwise around the rotation shaft 44b by the urging force of the plate spring 44c. maintain. As shown in FIG. 2, the lock release mechanism 45 is normally in a state in which the bracket 45a is urged clockwise around the support shaft 45b by the urging force of the wire spring 45c, and the operation lever 43 is lowered downward. At the same time, the rear portion of the bracket 45a and the stopper 44a are separated from each other, so that the stopper 44a is not subjected to force and maintains the locked state. As a result, the longitudinal movement of the upper rail 41 is regulated.

  In this state, when the seated person of the vehicle seat 1 operates the operation lever 43 upward as shown by an arrow B in FIG. 2, the operation lever 43 resists the urging force of the wire spring 45c and supports the support shaft. The bracket 45a rotates counterclockwise about 45b, and the bracket 45a moves against the urging force of the wire-like spring 45c by this rotation to move the stopper 44a downward as shown by an arrow C in FIG. become. This downward movement of the stopper 44a causes the stopper 44a to rotate clockwise around the rotation shaft 44b against the urging force of the plate spring 44c, thereby releasing the slide adjuster 40 from the locked state. Thus, the upper rail 41 can move back and forth while being guided by the lower rail 42.

  Therefore, the seated person can set the vehicle seat 1 at a desired front-rear position by shifting the waist while operating the operation lever 43 upward. Then, by releasing the hand from the operation lever 43 with the desired front-rear position determined, the operation lever 43 is moved to the lower position by the urging force of the wire spring 45c, and the bracket 45a is rotated clockwise around the support shaft 45b. As described above, the forward / backward movement of the upper rail 41 is locked again.

  As shown in FIGS. 3 and 4, the protection member 51 is attached to the upper riser 50, and is disposed around a portion where the bracket 45a is connected to the stopper 44a. The protection member 51 is configured by a U-shaped wire. The protective member 51 includes a portion connected to the stopper 44a, and at least 1/2 of the rear portion from the support shaft 45b of the bracket 45a in plan view. Even if the operating lever 43 is not pulled up, as shown by the arrow D in FIG. 3, when the bracket 45a can be pushed directly from above, the stopper 44a is lowered and the lock of the slide adjuster 40 is released. However, by providing the protective member 51 as shown in FIG. 3, the protective member 51 guards the bracket 45a far from the support shaft 45b and cannot be pushed in from above.

  Next, the effect of an Example is demonstrated using FIG. FIG. 5 is a side view of the vehicle seat and the vehicle seat for the rear seat according to the embodiment.

  If there is a large space under the front seat 1 for the vehicle, the seat of the seated person on the rear seat 2 and the luggage placed on the floor can directly contact the unlock mechanism 45. There is sex. Specifically, there is a possibility that a seated person of the vehicle seat 2 for the rear seat depresses the bracket 45a of the lock release mechanism 45 of the vehicle seat 1 for the front seat with his / her foot from above to unlock the slide adjuster. . However, in the embodiment, since the protective member 51 is disposed around the upper portion of the bracket 45a, the seated person cannot step on the bracket 45a connected to the stopper 44a. Thereby, the unlocking of the unexpected slide adjuster 40 during operation can be avoided.

  Further, since the protective member 51 is made of a wire, it can be easily manufactured and the cost can be reduced as compared with the case where the entire unlocking mechanism 45 is covered with resin or the like.

  As mentioned above, although the invention made by the present inventors has been specifically described based on the embodiments, it is needless to say that the present invention is not limited to the above embodiments and can be variously changed.

  For example, in the embodiment, the example in which the lock release mechanism 45 is provided on the left slide adjuster has been described, but the lock release mechanism 45 may be provided on the right or both side slide adjusters.

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat 10 ... Seat cushion 20 ... Seat back 30 ... Headrest 40 ... Slide adjuster 41 ... Upper rail 42 ... Lower rail 43 ... Operation lever 44 ... Lock mechanism 44a ... stopper 44b ... rotating shaft 44c ... plate spring 45 ... lock release mechanism 45a ... bracket 45b ... support shaft 45c ... wire spring 50 ... upper riser 51 ... Protective member

Claims (6)

The vehicle seat
Seat cushion,
Seat back,
A slide adjuster for moving the seat cushion back and forth; and
An upper support for supporting the seat cushion;
With
The slide adjuster is
An upper rail fixed to the upper riser;
A lower rail fixed to the floor of the vehicle,
A lock mechanism for controlling the back-and-forth movement of the upper rail;
An unlocking mechanism for unlocking the locking mechanism;
An operation lever disposed closer to the center of the seat cushion than the upper rail;
A protective member for protecting the unlocking mechanism;
With
The unlocking mechanism is
Provided with a bracket interlocking with the operation lever,
The locking mechanism is
With a stopper that moves up and down by the bracket,
The lock release mechanism releases the lock of the slide adjuster by lowering the stopper of the lock mechanism via the bracket,
The protective member is formed of a U-shaped wire, and is configured to suppress pushing the stopper by other than the operation of the operation lever .
In the U-shaped wire in a plan view, ½ or more is contained in the forward direction starting from a portion where the stopper is lowered from the support shaft of the stopper and the bracket. The vehicle seat according to claim 1,
The protective member is fixed to the upper riser, and the fixing position is above the bracket. The vehicle seat according to claim 2,
The locking mechanism further includes a plate-like spring that biases the stopper around the rotation axis and maintains the locked state.
The stopper is the bracket abutting parts you located on the center side of the seat cushion than the lower rail. In the vehicle seat according to claim 3,
The unlock mechanism further includes a wire spring that applies a biasing force to both the operation lever and the bracket. The vehicle seat according to claim 4, wherein
The operating lever is urged toward the first direction around the support shaft by the urging force of the wire-like spring, and the operating lever is lowered downward, and the bracket is also urged by the urging force of the wire-like spring. A force directed in the first direction around the support shaft is received, no force is applied to the stopper, and the slide adjuster maintains the locked state. The vehicle seat according to claim 4, wherein
When operated toward the operating lever upwards, the operating lever against the biasing force of said wire-like spring rotates in a second direction supporting lifting axis, said bracket said wire-like spring by the rotation The stopper is moved downward against the urging force, and the slide adjuster is unlocked.

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