JPH018199Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a headrest storage device equipped with a reclining mechanism, and in particular, the invention relates to a headrest storage device equipped with a reclining mechanism. The present invention relates to a headrest storage device that can be stored.

[Conventional technology and problems to be solved]

For example, many automobile seats are equipped with a headrest at the upper end of the backrest, but this headrest usually protrudes above the backrest and has various drawbacks. . In particular, if a headrest is provided at the upper end of the front seat of a car with a reclining mechanism, if you try to use the reclining mechanism to push the front seat horizontally backwards, the front seat will Since the headrest provided at the upper end touches the tip of the seat of the rear seat, there is a drawback that the headrest gets in the way and prevents the front seat from being reclined horizontally rearward.

In view of the above-mentioned drawbacks of the conventional technology, an object of the present invention is to provide a seat with a reclining mechanism by moving a headrest provided at the upper end of the backrest of the seat to the inside of the backrest in conjunction with the operation of the reclining mechanism. can be stored automatically,
Moreover, it is an object of the present invention to provide a headrest storage device that allows this operation to be easily performed even when the user is not seated.

[Means to solve the problem]

In order to achieve the above object, this invention provides a stay for movably supporting the headrest with respect to the backrest in a headrest storage device for a seat having a reclining mechanism, and a case where the stay is pulled into the back of the backrest. a guide holder that guides the movement of the stay and holds the stay; and a guide holder that elastically engages with the stay to hold the head rest in a predetermined position. It is provided with a locking means for preventing the backrest from moving to the side, a rotatable arm having a mounting member, and a connecting member for connecting and interlocking this arm side with the base side of the reclining mechanism. Activation configured to cause the arm to perform a rotational displacement based on a distance change between the base side attachment member of the reclining mechanism and the arm side attachment member that occurs when the reclining mechanism is actuated for a tilting operation. A coil spring provided between the locking means and the arm is used to release the locked state of the locking means by the rotational movement of the mechanism and the arm, and to allow the stay to move freely downward. and a wire for moving the lower end of the stay to the inner side of the backrest in order to store the headrest in the storage section of the backrest, and a wire for moving the lower end of the stay to the back of the backrest, and a rotation of the arm that occurs with the operation of the reclining mechanism. and a tensioning means for moving the wire toward the inner part of the backrest based on the dynamic displacement operation.

[Effect]

In this invention, in order to store the headrest in the headrest storage section, first move the operating lever to the second
As shown by arrow 28 in the figure, move it upward to activate the reclining mechanism. Then, the backrest portion of the seat begins to tilt rearward about the rotation axis provided at the back of the cover. In this case, since the support shaft provided in the middle of the inside of the cover and the rotation shaft of the backrest are in different positions, that is, as shown in FIGS. 3 and 4 in detail, the support shaft is The rotation axis of the backrest is located at the upper left part of the cover, while the rotation axis of the backrest is located approximately in the center of the cover, so the distance l between the pivot and the arm when the backrest is standing upwards and not tilted is ₁ (see Figure 3) and the distance between the spindle and the arm when the backrest is tilted l ₂ (see Figure 4)
are different in length, and the distance l ₂ is longer.

Therefore, when the backrest begins to tilt, the arm is pulled by the connecting member due to the difference in distance, and rotates about the support shaft in the counterclockwise direction shown by arrow 30 (see Figure 2). do. When the arm rotates, the two wires are stretched and stretched. In this case, one wire is slightly shorter than the other, so when the other wire is fully extended first and the coil spring is pulled, this pulls the locking piece. Then, the engagement between the locking piece and the stay is released.
One wire is then fully extended, thereby pulling the stay downward. As a result, the headrest attached to the upper end of the stay is also pulled downward and stored in the storage section of the backrest.

〔Example〕

Hereinafter, the present invention will be explained with reference to preferred embodiments shown in the drawings.

A seat 1 to which the headrest retracting device of the present invention is applied, shown in FIG.
A headrest 4 is mounted above the backrest portion 3 and supported by stays 5 and 50. A storage section 6 for storing the headrest is formed at the upper end of the backrest section 3, and the stays 5 and 50 protrude from approximately the center of the bottom surface 6a of the storage section 6. As will be described later, the stays 5 and 50 are movable in the vertical direction, and when they are moved downward, the headrest 4 attached to the upper end of the stays 5 and 50 is retracted. It is designed to be stored in the section 6. Further, a protective cover 7 is provided on the right side of the connecting portion between the seat portion 2 and the backrest portion 3, and this cover 7 protects the connecting portion between the seat portion 2 and the backrest portion 3, the reclining mechanism, and Parts of the headrest storage device etc. are covered. In front of the cover 7, an operating lever 8 is provided so as to protrude in the horizontal direction for operating the reclining mechanism and the headrest storage device of the present invention. Further, an arm 9 that supports the backrest 3 projects above the cover 7 and is integrally attached to a side surface of the backrest 3.

FIG. 2 is an exploded perspective view of the headrest storage device of the present invention, which is partially stored in the backrest portion 3 of FIG. 50 protrudes above the backrest portion 3, and a support shaft 10 serving as a mounting member for connecting to one end side of a connecting member 21, which will be described later, is disposed halfway inside the cover 7. The stays 5, 50 are elongated rod-like members with the headrest 4 fixed to their upper ends, and pipe-shaped guide holders 11, 111 are provided in the middle of the stays. An elongated hole 5a is formed at the lower end of the stay 5. One end of a wire 12 is attached to the lower end of this hole 5a, and the other end of this wire 12 is attached to the tip of an arm 13 disposed below the stay 5. This arm 13 is disposed within the backrest 3, and the base end of the arm 13 is rotatable around a support shaft 14 fixed within the backrest 3. Above holder 1
1 and 111 are also fixed inside the backrest part 3, and at the upper end of the holder 11 provided on the right side is a locking means for locking the stay 5 in a predetermined position. A locking piece 15 of the locking mechanism is provided. This locking piece 15 is
A force is applied by a means (not shown) in the direction in which the tip portion 15a constantly contacts the stay 5, and the stay 5 is engaged with an engagement groove (not shown) provided in the stay 5 to that position. It has stopped. Due to this locking, the head rest 4 provided at the upper end of the stay 5 is brought into a state of protruding above the backrest portion 3 as shown in FIG. Left holder 11
1 does not have a locking mechanism, and the stay 5 is attached to holder 1.
It's just wandering around within 11.

Further, a hole 15b is formed in the locking piece 15, and one end of a coil spring 16 constituting a lock release means is provided in the hole 15b. The other end of the coil spring 16 is connected to a wire 17.
It is hung on a ring 18 attached to one end of the .

In the middle of the arm 13, two pins, namely a first pin 19 and a second pin 20, which serve as attachment members for connecting to the other end side of a connecting member 21, which will be described next, are fixedly planted. ing. A long hole 21a provided at the upper end of a connecting member 21, which is a component of the starting means, is loosely inserted into the tip of the first pin 19, and is prevented from coming off by a spacer 22 and an E-shaped ring 23. A ring 24 attached to the other end of the wire 17 is attached to the tip of the second pin 20, and an E-shaped ring 25 is further fitted therein.

The connecting member 21 has a shape made by combining two L-shaped members, and has an arm portion extending upward and an arm portion extending horizontally forward at right angles thereto,
The tip of the support shaft 10 loosely passes through a ring 21b provided at the tip of the arm extending horizontally forward,
Furthermore, the spacer 26 and the E-shaped ring 27 prevent it from coming off.

The headrest retracting device of the present invention configured as described above operates when the reclining mechanism operates and the backrest portion 3 tilts rearward. In this case, the wires 12 and 1
By adjusting the length of 7, the locking piece 15 and stay 5
The headrest 4 is retracted downward and stored in the storage section 6 based on the timing of the lock release and the downward pulling of the stay 5.

The effect will be explained in detail below.

The headrest storage device shown in FIG. 2 is operated to move the headrest 4 into the headrest storage section 6.
To store it, first move the operating lever 8 in the direction of arrow
8 (FIG. 2), move it upward to activate a reclining mechanism (not shown). Then, the backrest portion 3 of the seat 1 begins to tilt rearward about a pivot shaft (not shown) provided at the back of the cover 7. In this case, since the support shaft 10 provided in the middle of the inside of the cover 7 and the rotation axis of the backrest portion 3 are at different positions, that is,
In detail, as shown in FIGS. 3 and 4, the support shaft 10 is located at the upper left part of the cover 7, while the rotation shaft 29 of the backrest portion 3 is located approximately at the center of the cover 7.
The distance l ₁ between the support shaft 10 and the arm 13 when the backrest 3 is not tilted upward as shown in FIG. 3, and when the backrest 3 is tilted as shown in FIG. The distance l ₂ between the support shaft 10 and the arm 13 is different in length, and the distance l ₂ is longer.

Therefore, when the backrest portion 3 begins to tilt,
Due to the difference in distance, the arm 13 is pulled by the connecting member 21, and the arm 13 is pulled by the arrow 3 about the support shaft 14.
Rotate counterclockwise as shown at 0. When the arm 13 rotates, the wires 17 and 12 are stretched and stretched. In this case, since the wire 17 is formed a little shorter than the wire 12, when the wire 17 is first fully extended and the coil spring 16 is pulled, this causes the locking piece 15 to be pulled. The locking piece 15 and the stay 5 are disengaged from each other. Then, the wire 12 is fully extended, thereby pulling the stay 5 downward. As a result, the headrest 4 attached to the upper end of the stay 5 is also pulled downward, and is stored in the storage section 6 of the backrest section 3 shown in FIG. 1.

In the above embodiment, an example was explained in which a rod-shaped member was used as the stay 5, but the stay 5 is not limited to this, and other materials such as a plate-shaped member, a square member, etc. may be used.

Further, the other constituent members are not limited to the above embodiments, and various changes are possible.

〔effect〕

As explained above, according to the present invention, the support shaft 10 and the arm 13 due to the operation of the reclining mechanism
Due to the difference in distance from When the reclining mechanism is operated to tilt the backrest part 3 backward, the headrest 4 is automatically retracted and the headrest 4 does not hit the rear seat when the backrest part 3 falls completely backward.

In addition, the headrest retracting device of the present invention uses the operation of the reclining mechanism to perform the retracting operation, so no operating member is required, and the mechanism is simple and economical. There is no need to operate the device while seated in the seat.
It can be easily operated from the seat next to you or from outside the vehicle. In this case, the reclining mechanism is operated using the difference in distance between the support shaft and the arm due to the inclination of the backrest, making the mechanism particularly simple.

Furthermore, the headrest storage device of the present invention utilizes a wire to pull and release the locking means locking the headrest in place, and then to retract the stay supporting the headrest. The head rest is automatically retracted into the backrest by pulling the stay downward using wires, and by appropriately adjusting the length of both wires, the inclination angle of the backrest can be adjusted. You can change the timing at which the headrest is retracted. For example, the headrest may be retracted when the backrest tilts 60 degrees, or retracted when the backrest becomes approximately horizontal. In addition, by making the length of the wire that releases the locking means that locks the headrest longer than the length of another wire that pulls the stay downward, after first removing the locking means,
Next, the stay can be pulled downward to store the headrest inside the backrest.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a seat device to which the headrest storage device of the present invention is applied, Fig. 2 is an exploded perspective view of the headrest storage device showing an embodiment of the invention, and Figs. 3 and 4 are the same as those shown in Fig. 2 above. FIG. 3 is a partially enlarged side view showing the working mode of the headrest storage device shown in FIG. 3...Backrest portion, 4...Headrest, 5,
50... Stay, 6... Storage section, 8... Operating lever, 10... Support shaft, 11, 111... Guide holder, 12... Wire, 13... Arm, 14...
Support shaft, 15... Locking piece, 16... Coil spring, 17... Wire, 21... Connection member, 29...
...The rotation axis of the backrest.

Claims (1)

[Claims for Utility Model Registration] A headrest storage device for a seat having a reclining mechanism includes a stay that movably supports the headrest with respect to the backrest, and a stay that supports the headrest when the stay is pulled into the back of the backrest. a guide holder that guides the movement of the headrest and holds the stay; and a guide holder that elastically engages the stay and moves the stay toward the back of the backrest so as to hold the headrest in a predetermined position. and a rotatable arm having a mounting member, and a connecting member for connecting and interlocking this arm side with the base side of the reclining mechanism, and for tilting the backrest portion to the rear side. an activation mechanism configured such that the arm performs a rotational displacement based on a distance change between the base-side mounting member of the reclining mechanism and the arm-side mounting member that occurs when the reclining mechanism is operated; In order to release the locked state by the locking means by rotational displacement of the arm and to allow the stay to move freely downward, a lock release mechanism is provided with a coil spring provided between the locking means and the arm. and a wire for moving the lower end of the stay to the inner side of the backrest in order to store the headrest in the storage section of the backrest, and a wire for moving the lower end of the stay to the inner side of the backrest, and a wire for moving the lower end of the stay to the inner side of the backrest, and a wire for moving the lower end of the stay to the inner side of the backrest, and a wire for moving the lower end of the stay to the inner side of the backrest, and for rotating the arm that occurs with the operation of the reclining mechanism. 1. A headrest retracting device comprising: a tensioning means for moving the wire toward the inner part of the backrest.