JP2557362Y2 - Center armrest locking device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a center armrest, for example, which can lock a retractable center armrest provided at the center of a seat back of a rear seat of an automobile in a storage position.

[0002]

2. Description of the Related Art In recent years, a retractable center armrest for use in a front-down state has been provided in the center of a seat back of a rear seat of an automobile so as to alleviate occupant fatigue and improve comfort. There is. This type of conventional center armrest is generally designed so that when not in use, it can be locked and held in the storage position only by the frictional force between the storage recess formed in the center of the seat back and the center armrest. It is.

[0003]

As described above, if there is no locking means at the time of storage and only the friction is applied between the seat back and the center armrest, the vehicle can be easily turned forward when suddenly stopping. It may move forward and fall down, which is not preferable in appearance and appearance. In particular, when the center armrest changes over time due to long-term use, the frictional force between the center armrests is reduced, and it is expected that the center armrest will easily jump forward when not in use.

The present invention has been made in view of the above-mentioned problem, and an object thereof is to securely lock a center armrest in a storage position so that the center armrest is not easily rotated to a use position unless the lock is released. To provide a locking device for a center armrest.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to provide a center armrest which can be displaced between a substantially horizontal use position and a storage position stored in a concave portion formed in a central portion of a seat back when not in use. The center armrest is rotatably attached to the lock device held in the storage position .
From both sides of the center armrest from the seat back side
, And both pivots formed on the both plates
A guide groove forming an arc-shaped groove centered on
It is slidably engaged with the lower end of the center armrest.
And a locking member movably provided in the center armrest so as to be movable up and down. The locking member is always attached downward so that the lower end thereof can protrude a required length from the lower end surface of the center armrest. A biasing means for urging, a strap having a lower end connected to the lock member and an upper end protruding from an upper end of the center armrest, and a lower end of the lock member provided on the seat back side can be disengaged. This can be achieved by providing a locking member.

[0006]

When the center armrest in the use position is rotated to the retracted position, the lower end of the lock member which is constantly urged downward is automatically locked and held by engaging with the locking member. Also, when the strap protruding from the center armrest is pulled, the lock member connected thereto moves upward against the biasing means, thereby disengaging the lock with the locking member and releasing the lock. By pulling the strap, the center armrest falls forward and can be rotated to the use position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 3 shows a bench-type seat at the rear of the vehicle, comprising a substantially horizontal seat 1 and a slightly inclined rear seat back 2. At the center of the seatback 2, a center armrest 3 described in detail below is provided with a substantially horizontal use position (shown by a two-dot chain line in the drawing).
Can be displaced by rotating between a storage position (shown by a solid line in the drawing) which is stored in a vertically long recess 4 formed in
It is provided so that it becomes.

1 and 2, reference numeral 5 denotes a resin or metal reinforcing insert housed in a pad 6 constituting the center armrest 3, and a rear plate 5a having a substantially vertically rectangular shape. And a frame plate 5b facing forward, which is provided continuously around the entire circumference. At the upper end of the insert 5,
An opening 7 through which a strap 20 described later is inserted is formed.

[0009] 8 is fixed to the front surface of the rear plate 5a,
It is a 1st reinforcement frame which makes a U-shaped downward facing front view. Frame plate 5b
A pair of upper and lower pivots 9, 9 facing in the left-right direction (vehicle width direction) is fixed to the front end of the lower end portion of the lower end portion of the frame plate 5b so as not to rotate. 10 is a support bracket rear end portion forms a planar view forward U-shaped fixed to the seat back frame 11, the side plates 10a, 10a are Sea
Extending from the back side to the center armrest side.
The center armrest 3 is located laterally on both sides so as to surround the lower half of the lower part.

Both ends of the upper pivot 9 are rotatably supported on both side plates 10 a of the support bracket 10 via bushes 12. Both ends of the lower pivot 9 are slidably engaged with guide grooves 13 formed on both side plates 10a of the support bracket 10 and formed in an upwardly arcuate shape with the upper pivot 9 as a center. . This allows
The center armrest 3 is moved upward from a substantially vertical storage position to a substantially horizontal use position to serve as a rotation axis.
Can be rotated about the pivot 9 of the
At this time, the lower pivot 9 is guided along the guide groove 13.
Functions as a pin.

At the center of the lower end of the insert 5, a guide bracket 14 having a U-shape facing forward when viewed from the side is provided with a lower piece 1 thereof.
4a on the lower surface of the frame 5b of the insert 5,
4b is fixed to the rear surface of the rear plate 5a of the insert 5, and the upper piece 14c is fixed so as to extend to the vicinity of the pivot 9 through the rear plate 5a. Both ends of the upper piece 14c near the base piece 14b are fixed to a second U-shaped reinforcing frame 15 fixed to the lower front surface of the rear plate 5a. 16 is an upper piece 14c and a lower piece 14a of the guide bracket 14, and a lower frame plate 5b of the insert 5.
With a lock pin that penetrates vertically
A stopper 17 is also fixed to the lower end of the lock pin 16 and also serves as a spring receiver for restricting the amount of protrusion of the lock pin 16 from the lower piece 14a by being brought into contact with the upper surface of the frame plate 5b.

The projecting dimension of the lock pin 16 from the lower piece 14a is set so as to project from the lower end surface of the center armrest 3 by a required dimension. Reference numeral 18 denotes a compression coil spring fitted into a lock pin 16 between the upper piece 14c and the lower piece 14a of the guide bracket 14, the lower end of which is pressed against the stopper 17 and the upper end thereof is pressed against the lower surface of the upper piece 14c. , The lock pin 16 is constantly urged downward.

Lock pin 1 protruding from upper piece 14c
A pull-up plate 19 is fixed to the upper end of 6, and the lower end thereof contacts the upper piece 14 c of the guide bracket 14 and also serves as a stopper. Pull plate 1
A lower end of a band-shaped strap 20 is connected to 9, and an upper end of the band-shaped strap 20 is inserted through an upper opening 7 of the insert 5 and protrudes forward from an upper end of the center armrest 3.

Reference numeral 21 denotes a seat back frame 11 at the rear end.
A locking plate fixed to the lower end of the lock pin 15 is inserted into an engagement hole 22 of a horizontal piece 21a connected to the upper end of the front end.
The lower end portion of the can be disengaged. In the above embodiment, when the center armrest 3 in the storage position is pulled out to the use position, first, the strap 20 projecting from the upper end of the armrest 3 is gripped and pulled forward. Then, the lock pin 16 integral with the lifting plate 19 is
Is pulled up against the compression coil spring 18, and the lower end thereof is detached from the engagement hole 22 of the locking plate 21, whereby the lock is released.

By continuing to pull the strap 20 forward, the center armrest 3 is rotated forward to be used. On the other hand, when the center armrest 3 in the use position is inserted into the recess 4 with the strap 20 released, the lock pin 16 urged downward projects into the engagement hole 22 of the engagement plate 21. As a result, the storage position is automatically locked and held. In addition, such case
In the delivery position, the lock pin 16 and the locking plate 21 are engaged.
And the lower pivot 9, which functions as a guide pin, is
And engage with the guide grooves 13 respectively, and the upper
Pivots 9 are pivotally supported at both ends by support brackets 10, respectively.
Holding force of the armrest 3 in the retracted state
Is expensive. As described above, in the above embodiment, the lock can be easily released by simply pulling the strap 20 and pulled out to the use position, and when not in use, it is automatically locked by simply inserting it into the recess 4. Therefore, the operation is extremely easy. In addition, when not in use, securely lock the storage position.
As a result, it is possible to maintain a high holding force, so that the vehicle does not fall forward unnecessarily when the vehicle is suddenly stopped or the like, and there is no danger of impairing the appearance.

[0016]

According to the present invention, the center armrest can be securely locked in the storage position when not in use, and can be prevented from naturally falling down, so that the appearance and appearance are impaired. There is no fear.

[Brief description of the drawings]

FIG. 1 is a central longitudinal side view of a center armrest including an embodiment of the present invention.

FIG. 2 is an arrow view of a main part taken along line AA in FIG.

FIG. 3 is a perspective view of the entire rear seat to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat 2 Seat back 3 Center armrest 4 Depression 5 Insert 5a Rear plate 5b Frame plate 6 Pad 7 Opening 8 First reinforcement frame 9 Axis 10 Support bracket 10a Side plate 11 Seat back frame 12 Bush 13 Guide groove 14 Guide bracket 14a Lower Piece 14b base piece 14c upper piece 15 second reinforcing frame 16 lock pin (lock member) 17 stopper 18 compression coil spring (biasing means) 19 lifting plate 20 strap 21 locking plate (locking member) 21a horizontal piece 22 Hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigeo Kuroiwa 1251 Honjo, Komaki City, Aichi Prefecture Inside Marubishi Industry Co., Ltd. (56) References Japanese Utility Model Showa 61-117741 (JP, U) Japanese Utility Model Showa 57 −182363 (JP, U) Real opening 61-131329 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A substantially horizontal use position and a seat back
Storage position stored in the recess formed in the center of theStrange
PossibleWhen the center armrest is not in use,
In the lock device to be held in the device,The center armrest is rotatably mounted, and
Extend from the back side to both sides of the center armrest
With both side plates, An arcuate shape formed on the both side plates and centered on the rotation axis
A guide groove forming a groove, The center armrest is slidably engaged in the guide groove.
A guide pin provided at the lower end of the  Provided vertically movable within the center armrest
And a lower end of the lock member below the center armrest.
Always urges downward so that it can protrude the required length from the end face
A lower end is connected to the lock member and an upper end is
The strap protruding from the upper end of the armrest and the lower end of the lock member provided on the seatback side
A center provided with a locking member that can be disengaged.
Armrest locking device.