JPH0325645Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a headrest that can be used for a variety of purposes.

``Prior art'' A headrest provided at the top of a seatback is intended to hold the head of a seated person while the car is running and protect it in the event of a collision. There was a problem that if the seat was empty, it was useless, wasteful, and even a nuisance.

``Purpose of the invention'' The present invention was created by focusing on these conventional problems, and is designed to be able to be used for other purposes when there is no need to hold or protect the head of a seated person. The purpose of this invention is to provide a headrest that solves the above problems.

"Structure of the invention" In order to achieve the above object, the present invention provides a headrest comprising a headrest main body held at the tip of a support arm whose base end is pivotally supported on the side surface of a seat bag, the headrest main body being held on the front side of the headrest main body. The supporting arm is extendable and can be held at a desired extendable and retractable position, and rotates around a horizontal axis so that the headrest main body at the tip extends between the front and rear footwells of the seat back. The base of the headrest is pivoted to the side surface of the seat bag via a rotational positioning mechanism so that the headrest body can be moved between The headrest is characterized in that the headrest main body is attached via a rotation adjustment mechanism that holds the headrest with the side facing upward, and the headrest main body is moved forward and backward of the seat by a support arm, and furthermore, the headrest main body itself can be rotated. By making it fixable, it can be used as a table, footrest, armrest, etc.

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

FIGS. 1 to 7 show an embodiment of the present invention, and as shown in FIG.
Rotational positioning mechanism 2 on side S1 of seat bag S
0, the support arm 30 is rotatable around a horizontal axis and fixed, and its tip is supported so as to be movable back and forth around the seat bag, and the tip 31 of the support arm 30 has a cushion 40a on the front side and a cushion 40a on the back side. A headrest main body 40 having a flat portion 40b formed thereon is supported around a substantially horizontal axis via a rotation adjustment mechanism 50 so that the rotational position of the headrest main body 40 can be adjusted by holding the headrest main body 40 with the front side facing upward or the back side facing upward. Become.

As shown in FIG. 2, the rotational positioning mechanism 20 is
Base 2 fixed to side surface S1 of seat bag S
1 is provided with an internal mechanism, a base 32 of a support arm 30 is pivotally connected to the base 21 via a pivot pin 22 protruding from the base 21, and the pivot pin 22 and the base 3
A biasing spiral spring 23 for a balancer is tensioned between a locking pin 33 protruding from the balancer.

A spur gear 24 is fixed to the base 32,
The restraining member 25 is located close to the spur gear 24 and is connected to the pivot shaft 25a.
The restraining member 25 is pivotally supported on the base 21 so as to be able to swing, and has a partial tooth 25b that engages with and disengages from the peripheral edge 24a of the spur gear 24. Free end 2 of restraining member 25
Engagement pin 26a and release pin 26 that can be engaged with 5c
An operating member 26 having a shape of 26 b is swingably supported on the base 21 via a pivot 26 c, and the operating member 26 is provided with an operating handle 26 d.

The support arm 30 includes a base arm 34 and a distal end 3.
As shown in FIG. is inserted through the support arm 30, and the base end 35a is fixed with a set screw 36 whose tip presses against the base end 35a so that the length of the support arm 30 can be adjusted. Further, a biasing spring 37 is inserted into the fitting hole 34a to make it easier to remove the distal arm 35. The support arm 30 is supported by the rotational positioning mechanism 20 so that the headrest body 40 at the tip thereof can be moved between the front and rear footwells of the seat bag S, and further expands and contracts at a desired rotational position to adjust the position of the headrest body 40. It is set so that it can be changed and retained.

As shown in FIG. 4, the rotation adjustment mechanism 50 includes a support tube 51 that can be pressed against a support base 41 (see FIG. 1) built into the headrest main body 40;
A support shaft 52 inserted into and engaged with the support tube 51 is arranged to extend horizontally from the distal end 31 of the support arm 30 , and the support shaft 52 is inserted into and engaged with the support tube 51 .
a is in contact with the tip 31, and the support shaft 52 is in contact with the tip 31.
1, and is screwed into a threaded portion 52a formed at the tip of the support shaft 52, so that the tip 31 is held between the base end 51a of the support tube 51. The support cylinder 51 and the support shaft 5
2 is provided with a rotating knob 53 for fixing the tip 2 to the distal end portion 31.

Furthermore, in this embodiment, the headrest main body 40
The support base 41 is configured to be adjustable in front and back movement by a front-rear adjustment mechanism that moves and holds the support base 41 in front and back directions, and as shown in FIGS. A first guide groove 41b and a second guide groove 41c that are parallel to each other in the front-rear direction are formed inside. The tip of the support shaft 52 extends from the open groove 41a to the support base 41.
A guide member 52b inserted into the support shaft 52 and externally fitted onto the tip of the support shaft 52 is slidably fitted into the first guide groove 41b.

The tip 51b of the support tube 51 is fixed to a guide member 52c that is slidably fitted into the second guide groove 41c on the front side. The leading edge of the support shaft 52 forms a locking/disengaging protrusion 52d, and the support base 41
It is possible to selectively fit into an engagement hole 41d continuous to the back wall of. A locking notch 51 is provided in the support tube 51.
A locking groove 51e having diameters c and 51d is bored, and a locking pin 52e protruding from the support shaft 52 engages with the locking groove 51e, and is stretched between it and the support base 41. The support shaft 52 is moved by the tabular spring 52f so that the engagement/disengagement protrusion 52d engages with the engagement hole 4 in the back wall of the support base 41.
It is biased in the direction of fitting into and protruding from 1d.

Further, the headrest main body 40 has a groove 4 for allowing the support tube 51 and the support shaft 52 to move back and forth.
0c has been opened.

In the headrest 10 having the above configuration, the first
When the headrest 10 is used for its original purpose as a headrest, as shown in position A in FIG. 30 and rotate the positioning mechanism 20.
The restraint member 25 is attached to the peripheral tooth 24a of the spur gear 24.
The cushion 40a of the headrest main body 40 is directed forward in order to engage and hold the partial teeth 25b of the seated person, and the cushion 40a of the headrest main body 40 is directed forward to the first guide groove 41b and the second guide groove 41c of the support base 41. guide member 52b and guide member 52 relative to each other.
To move the locking pin 52e, the support shaft 52 is moved backward against the biasing force of the spring 52f, and the locking/disengaging protrusion 52d is inserted into the engagement hole 41 of the support base 41.
d, move the support base 41, fit the locking/disengaging protrusion 52d into the locking hole 41d at an appropriate position, and lock the locking pin 52e in the locking notch 51c. After determining the position in the front-rear direction, tighten the rotation knob 53 in the rotation adjustment mechanism 50, and then tighten the rotation knob 53.
and the base 51a of the support tube 51.
The headrest main body 40 is fixed by pinching the tip 31 of the headrest.

As a result, the headrest main body 40 is held at an appropriate position, so that the head of the seated person is held by the headrest main body 40 and protected in the event of a collision or the like.

When it is desired to rotate the headrest main body 40 with respect to the support arm 30 or move it back and forth, the locking pin 52e is operated as described above.

Furthermore, when the rotation knob 53 is loosened, the clamping force between the support tube 51 and the base end 51a is loosened, so the support shaft 5
2 becomes rotatable, and by rotating together with the support shaft 52, the headrest main body 40 becomes rotatable.

When it is desired to rotate the support arm 30 about the pivot pin 22, the operating handle 26d is manually pulled upward and the operating member 26 is rotated clockwise in FIG. 2. Then, the release pin 26b pushes down the free end 25c of the restraint member 25, and the restraint member 25
is rotated counterclockwise, the partial tooth 25b separates from the peripheral tooth 24a of the spur gear 24, and the spur gear 24
is disengaged.

As a result, the support arm 30 becomes rotatable, so if it is stopped at an appropriate position and the operating handle 26d is pulled down, the partial tooth 25b of the restraining member 25 is rotated to the peripheral tooth 24a of the spur gear 24. , and the support arm 30 is held in that position.

Also, if you loosen the setscrew 36, the tip arm 35
can be pulled out or pushed in from the fitting hole 34a of the base arm 34, and by tightening the setscrew 36 at an appropriate position, the tip arm 3
5 can be fixed and the support arm 30 can be expanded and contracted to set an appropriate length.

Since each part can be moved appropriately as described above, the headrest 10 can be used for many purposes by combining them.

That is, in position B in FIG.
It is used as a rear table with its 0b facing upward, and at that time, the headrest main body 40 is located on the support arm 30 side, so the rear seat does not become narrow. In addition, in position C, the support arm 30 is lowered to the foot of the rear seat, and the cushion 40a is turned upward to be used as a foot rest for the person seated in the rear seat.

In addition, in position D, the support arm 30 is tilted forward and the flat part 40b of the headrest main body 40 is turned upward to be used as a table for the occupant of the seat. Since it is located ahead of section 31, the seated person will not feel cramped.

In addition, in the above embodiment, the support arm 30 was provided only on one side of the seat bag S, but
It goes without saying that they may be provided on both sides.

"Effects of the invention" According to the headrest of the invention, the headrest main body can be rotated back and forth behind the seat bag via the support arm and stopped at an appropriate position by the rotational positioning mechanism, and the headrest main body itself can also be rotated. Since the headrest can be fixed at an appropriate position, the headrest body can be moved to an appropriate position around the seat bag and used for a variety of purposes, and the headrest can be used in any situation, so there is no waste. The headrest becomes unnecessary and no longer gets in the way.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and Fig. 1 is a perspective view of a headrest attached to a seat bag;
Figure 2 is a front view of the main part of the rotation positioning mechanism, Figure 3 is a sectional view of the main part of the support arm, Figure 4 is a sectional view of the vicinity of the tip of the support arm showing the rotation adjustment mechanism, and Figure 5 is the support base. 6 is a sectional view taken from FIG. 5, and FIG. 7 is a side view of the headrest attached to the seat bag for explaining the operation. DESCRIPTION OF SYMBOLS 10... Head rest, 20... Rotation positioning mechanism, 30... Support arm, 40... Head rest main body, 50... Rotation adjustment mechanism.

Claims (1)

[Claims for Utility Model Registration] A headrest comprising a headrest main body held at the tip of a support arm whose base end is pivotally supported on the side surface of a seat bag, wherein the front side of the headrest main body is used as a cushion and the back side is a flat surface. The support arm is extendable and retractable and can be held at a desired extendable and retractable position, and rotates about a horizontal axis so that the headrest main body at the tip can be moved between the front and rear footwells of the seat back. The base of the headrest is pivoted to the side surface of the seat bag via a rotational positioning mechanism, and the headrest main body is held on a horizontal support shaft fixed to the tip of the support arm with the front side facing upward or the back side facing upward. A headrest characterized in that the headrest main body is attached via a mechanism.