JPH0316515Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a headrest device in which a headrest body is supported on a support stay erected on a seat bag so as to be movable up and down, and its position can be adjusted up and down.

``Prior Art'' Conventionally, there are various types of headrest devices that allow vertical position adjustment, but there are those that are equipped with a positioning mechanism and adjust by raising or lowering the headrest body with strong force, or those that have a locking mechanism. Generally, the headrest body is restrained by pressing and unlocking the knob etc. with one hand, raising or lowering the headrest body with the other hand, and then releasing one hand and locking it. It was spot on.

``Problems that the invention aims to solve'' However, with such conventional headrest devices, when raising and lowering the headrest body, it cannot be adjusted reliably without using both hands, so both hands are occupied, resulting in poor operability. However, if the driver operates the vehicle while driving, it may interfere with the driver's control, which is dangerous, and the driver may not be able to obtain a comfortable driving position.

The present invention was made with attention to these conventional problems, and the purpose of the present invention is to provide a headrest device that solves the above problems by allowing the vertical position of the headrest to be easily adjusted with one hand. There is.

``Means for Solving the Problems'' The gist of the present invention to achieve this purpose is to support the main body of the headdress so that it can rise and fall on a support stay that is erected on the seat bag, so that its vertical position can be adjusted. In the headrest device, the headrest main body is biased in the downward direction, a tooth member is fixed to either the headrest main body side or the support stay side, and the teeth of the tooth member are attached to the other side in the downward direction of the headrest main body. are engaged with each other, a claw member that can be climbed over in the upward direction is pivotally mounted, and a locking member having a locking end for locking and disengaging the claw member so as to be able to restrain the claw member and a release end for releasing the restraint is pivotally mounted; An end engaging portion is provided on one side including the tooth member to engage the pawl member at the end of the lifting stroke when the head rest main body is at the highest raised position, and rotates the headrest body to a large extent. The locking end is arranged on the locking member so as to restrain the locked end of the moved pawl member, and the locking end is engaged with the release end of the locking member at the starting end of the vertical stroke to lock the pawl member. The headrest device is characterized in that a release part that is rotated to release the headrest is provided on one side including the tooth member.

``Function'' However, if you place your hand on the lower end of the headrest body and apply force from below in order to raise it, the claw members will easily overcome the teeth of the tooth member, allowing you to easily raise the headrest body. If you release the headrest, it will stop at that position and stop at the desired position.If the headrest body is too high, as described above, once the headrest body is raised to the top end, which is the end of its lifting stroke, it will stop at the desired position. The engaging part is
The pawl member is locked to the locking member while being largely rotated, and the pawl member is disengaged from the tooth member and released, and the headrest body is lowered by the biasing force and returns to the starting end of the lifting stroke, and the locking member The release end of the headrest engages with the release part and the restraint of the claw member is released, so that the claw member meshes with the teeth of the tooth member, and when the headrest body is raised, the vertical position can be adjusted again. be.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 and 2 show an embodiment of the present invention, in which a support stay 10 erected on a seat back A of a seat has a substantially inverted U-shape with legs 11, 11, and a headrest main body. The headrest main body 20 is supported so as to be movable up and down via sliding brackets 12 and 13 which are fixed to the headrest frame 30 of 20 and slidably fit onto the legs 11 and 11.

The headrest main body 20 is made up of a pad covering the headrest frame 30, and a horizontal portion 1 at the upper end of the headrest frame 30 and the support stay 10.
4, there is a spring 2 that biases the headrest main body 20 and the headrest frame 30 in the downward direction.
1 is stretched.

A tooth member 40 is fixed to one side plate 31 of the head rest frame 30 in the vertical direction, and teeth 41, 41, .

A support plate 15 is fixed to the leg portion 11 of the support stay 10 facing the tooth member 40, and a claw member 50 and a locking member 60 are pivotally attached to the support plate 15.

The claw member 50 has a locking claw 51 at one end thereof,
The locking pawl 51 is pressed so as to mesh with the teeth 41 of the tooth member 40 by the urging force of the spring 52 stretched between the support plate 15 and one end is pressed against the stopper 16 fixed to the support plate 15. The locking claw 51 is attached to the head rest main body 20.
In the downward direction, the tooth member 40 meshes with the teeth 41 of the tooth member 40 without being able to be overcome, and in the opposite upward direction, the tooth member 40 can be overcome.

Following the terminal ends of the teeth 41, 41, the tooth member 40 engages with the locking pawl 51 of the pawl member 50 when the headrest main body 20 is raised to the end of the lifting stroke, and the locking pawl 51 is connected to the tooth member. 40 teeth 41,4
A terminal engagement portion 42 is formed that can be rotated greatly from 1 to a state where the engagement is released. The terminal engaging portion 42 is disposed so as to engage with a portion of the claw member 50 and may be provided anywhere on the headrest main body 20 side.

At the end of the vertical stroke of the head rest main body 20, the locking pawl 51 engages the teeth 41 and 4 of the tooth member 40.
The locking member 60 that can restrain the claw member 50 in a disengaged state when disengaged from the support plate 1 has a locking end 61 that can engage with the locked end 53 that is one end of the claw member 50. 15 is biased counterclockwise in FIG. There is.

When the headrest main body 20 released at the end of the lifting stroke descends due to the biasing force of the spring 21 and returns to the starting end of the lifting stroke, the release end 6
A release portion 43 is formed on the end surface of the terminal engagement portion 42 to engage with the locking member 3 to release the locking member 60 . The release portion 43 may be provided somewhere on the headrest main body 20 side.

Next, the effect will be explained.

In FIGS. 1 and 2, the headrest main body 2
0 and the head rest frame 30 are in the middle of the lifting stroke, and the teeth 41, 41... of the tooth member 40 are in the middle of the lifting stroke.
The locking claw 51 of the claw member 50 is engaged with the intermediate portion of the headrest frame 30 and the headrest main body 20 to prevent them from moving up and down.

When adjusting the vertical position of the headrest main body 20, place a hand on the lower end of the headrest main body 20 and apply force to raise it. Since it is from below, you can apply force while seated. As a result, the headrest main body 20 and the headrest frame 3
0 tries to rise. When the force exceeds a predetermined value, the locking pawl 51 of the pawl member 50 rides on the side surface of one of the teeth 41, 41... and swings as shown by the dashed line in FIG. .

When you release your hand from the headrest main body 20 at an appropriate position, the locking pawl 51 of the pawl member 50 meshes with the teeth 41, 41, . frame 3
0 and the headrest main body 20 can be stopped and adjusted to desired vertical positions.

When the desired vertical position has been exceeded, when the headrest main body 20 is raised to the uppermost end, the locking claw 51 of the claw member 50 passes the terminal end of the teeth 41, 41... and engages the terminal end engaging portion 42, As shown by the two-dot chain line in FIG. 2, the claw member 50 is rotated greatly and the locked end 53 comes into contact with the locking end 61 of the locking member 60, and the locking member 60 is rotated and locked. After passing over the toe 61, the pawl member 50 is restrained in a state in which the pawl member 50 has rotated significantly to a disengaged state in which the locking pawl 51 is disengaged from the teeth 41, 41, .

The locked end 53 is locked to the locking end 61 of the locking member 60, and the claw member 50 is restrained in the disengaged state,
Since the locking pawl 51 and the teeth 41, 41, .

When the headrest main body 20 and the headrest frame 30 descend and return to the starting end of the lifting stroke, the release portion 43 of the headrest frame 30 comes into contact with the release end 63, and the locking member 60 is moved clockwise, which is the release direction. By rotating, the locked end 53 of the pawl member 50 is released from the locking end 61 of the locking member 60, and due to the biasing force of the spring 52, the locking pawl 51 of the pawl member 50 is moved to the teeth 41, 41 of the tooth member 40. It meshes with the starting end of...

Therefore, by raising the headrest main body 20 and the headrest frame 30, the vertical position can be adjusted as described above.

Note that it goes without saying that the claw member, the locking member, and the tooth member can perform the same function even if their mounting orientations are reversed.

"Effects of the invention" According to the headrest according to the invention, the vertical position can be adjusted simply by pushing up the lower end of the headrest body, so operability is extremely improved, and the operation of lowering the headrest body from top to bottom is easy. Since it is unnecessary and can be operated with only one hand, the driver can easily adjust the position while driving, and can drive with a good driving posture, improving comfort. Moreover, the vertical position can be adjusted by a simple mechanism with a minimum number of mechanical components, and a headrest whose vertical position can be easily adjusted can be provided at a low cost.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the headrest device with the interior partially omitted and seen through, and Fig. 2 is a view in the direction of the arrows in Fig. 1. It is shown enlarged from the figure. 10...Support stay, 20...Head rest main body, 30...Head rest frame, 40...Tooth member, 41, 41...Teeth, 50...Claw member, 51
... Locking claw, 53 ... Locked end, 60 ... Locking member, 61 ... Locking end, 63 ... Release end.

Claims (1)

[Claim for Utility Model Registration] In a headrest device in which a headrest main body is supported on a support stay erected on a seat bag so as to be movable up and down, and its vertical position can be adjusted, the headrest main body is biased in a downward direction, and the headrest main body side and a support stay side, and on the other side, a claw member that engages with the teeth of the tooth member in the downward direction of the headrest body and that can be climbed over in the upward direction is pivotally attached, A locking member having a locking end for locking and disengaging the claw member so as to be able to lock the claw member and a release end for releasing the locking member is pivotally mounted, and the end of the lifting stroke when the headrest main body is at the highest raised position; A terminal end engaging portion is provided on one side including the tooth member to engage with the claw member and rotate it largely, and the locking end is arranged so as to restrain the locked end of the claw member that has rotated greatly. A release part, which is disposed on the locking member and rotates to engage with a release end of the locking member at the starting end of the lifting stroke to release the locking of the claw member, is provided on one side including the tooth member. A headrest device characterized by being provided with.