JPH0316510A - Regulator for pillow of chair - Google Patents

Abstract

PURPOSE:To set a pillow in a state for a comfortable bed by changing the state of a compression spring so that a pillow main-body may be pressed forward, to keep its changed state, when the lower section of the pillow main-body is pushed forward, and by arranging the front surface of the pillow main-body and a back support in rough parallel with each other. CONSTITUTION:A support 3 rising from the upper end of a back support 1 is covered with a pillow main-body 4, and the main-body 4 is fitted to be oscillated at the front and rear of a bearing shaft 8 set at the upper section of the support 3. Besides, a bearing rod 10 rising at the lower section of the support 3 is pivotally fitted to be vertically moved and horizontally oscillated, and the tip section of the bearing rod 10 is pivotally supported on a bracket 12 projected from the pillow main-body 4. The pivotally supporting section 13 of the bracket 12 with the bearing rod 10 is formed movably to the front and rear of the support 3 by oscillation in the front and rear directions of the bearing rod 10, and between the pivotally fitting section 9 of the bearing rod 10 with the support 3, and the pivotally supporting section 13 of the bracket 12 with the bearing rod 10, a compressed spring 14 is placed. As a result, when the back support is brought down, then a pillow can be regulated in a state for a comfortable bed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention mainly relates to a pillow adjustment device for attaching to a pillow for a bus or passenger car seat, a backrest of other chairs, and especially a reclining backrest.

[Conventional technology]

In the conventional pillow of this kind, as shown in FIG. , which is mounted so that it can swing back and forth with large frictional resistance.

[Problem to be solved by the invention]

On long-distance bus trips, especially when traveling at night, most passengers recline their backrests to fall asleep.If they then fold down their backrests in the state shown in Figure 7, the solid line in Figure 8 will occur. As shown in the figure, the pillow hits a part of the head, which causes fatigue faster, and when the pillow is tilted backwards around the support shaft, as shown by the two-dot chain line, the pillow becomes lower, making it uncomfortable to sleep. In order to solve the above-mentioned conventional drawbacks, the present invention has developed a means for adjusting the pillow to a comfortable state, especially when the backrest is reclined.

[Means to solve the problem]

The solution according to the present invention is to cover a pillar that stands up from the upper end of the backrest with the main body of the pillow, attach it to a support shaft provided at the top of the pillar so that it can swing back and forth, and to stand up a support rod at the bottom of the pillar. It is pivoted to be able to move up and down and swing back and forth, and the tip of the support rod is pivotally supported on a bracket that protrudes from the pillow body, and the pivot point between the bracket and the support rod moves in the front-rear direction of the support rod. A compression spring is interposed between the pivot portion of the support rod to the support rod and the pivot portion of the bracket to the support rod.

[For production]

The pillow body is pivoted to the top of the support, and when the backrest is folded down and the bottom of the pillow body is pushed forward, the compression spring moves the pillow body from the backwards position to the dead point of the upright position. The state changes to a state of pushing forward past ,
The pillow body rotates forward about the support shaft and maintains that state. Moreover, by pushing the lower part of the pillow body forward,
The front surface of the pillow body is approximately parallel to the backrest, providing a comfortable sleeping condition.

〔Example〕

To specifically explain the pillow adjustment device according to the present invention, the fifth
As shown in the figure, it is attached to a reclining seat of a bus, and as shown in Figure 3, a pair of left and right columns 3, 3 are protruded from the upper end of a frame 2 that forms a backrest 1. death,
The sleeper body 4 is installed by covering both supports 3, 3, but from the installation construction, the sleeper body 4 is attached to the metal middle frame 5.
It is formed of a metal outer frame 6 which is placed over the outer frame 6, and a cushioning material 7 is attached to the outer surface of the outer frame 6.

Therefore, as shown in Figures 1 and 3, both pillars 3, 3
A support shaft 8 is installed between the upper ends, a fixed shaft 9 is installed between the lower ends, and the middle frame 5, which covers both supports 3, 3, is rotatably supported on the upper support shaft 8, and the lower Cylindrical support rods 10, 10 are rotatably attached to the left and right sides of the fixed shaft 9, respectively, and the holes 11 of each support rod 10 through which the fixed shaft 9 passes are made long in the horizontal direction, so that the support rod 10 can be moved up and down. Provided as follows. The tip of the support rod 10 is pivotally supported by a pin 13 on a bracket 12 protruding inside the middle frame 5, and each support rod 1 is further supported as shown in FIG.
A compression spring 14 is installed inside the 0 in a state in which it is in pressure contact with the fixed shaft 9 and the pin 13. Inner frame 5 installed as above
Cover with the outer frame 6 with the cushioning material 7 attached, and tighten the screws 15.
The outer frame 6 is integrally fixed to the inner frame 5. Further, a band-shaped handle 16 is provided at the lower end of the sleeper body 4 so as to hang down from the front side of the backrest 1.

By the way, the compression spring 14 causes the sleeper body 4 to
The pivot point (pin 13) of the bracket 12 protruding from the middle frame 5 with the support rod 10 is located at the virtual center perpendicular to the fixed shaft 9 so that it can be pressed alternately forward and backward with the dead point as the boundary. It is formed so as to be located before and after line a.

The shapes of the middle frame 5 and the outer frame 6 are such that the front side stands vertically and the rear side slopes downward and widens rearward. Further, 17 in the figure is a reinforcing rod that holds the space between the two supports 3, 3.

With the above structure, when the backrest 1 is erected as shown in FIG. 5, by pressing the lower part of the sleeper body 4 backward, the lower part of the sleeper body 4 springs into compression spring as shown in FIG. At step 14, the state of being pressed backward is maintained. On the other hand, when the backrest 1 is folded down as shown in FIG. 6, by pulling the lower part of the sleeper body 4 forward with the handle l6, the pulled state is maintained by the compression spring 14 as shown in FIG. The front surface of the sleeper body 4 protrudes substantially parallel to the backrest 1.

〔Effect of the invention〕

In the chair pillow adjustment device according to the present invention, the pillow body is swingably mounted on a support shaft provided at the upper part of the support, and a supporting rod that can move up and down and swing back and forth is protruded from the lower part of the support, and the upper end thereof is pivoted to a bracket that protrudes from the pillow body, and a compression spring is installed inside the support rod, and as the support rod swings back and forth, the pillow body is alternately pressed forward and backward from the dead point. The pivot point of the pillow body is located at the top of the support, so by pushing the lower part of the pillow body forward, the front of the pillow body is almost parallel to the front of the backrest. It protrudes forward in a shape, and the head of the person lying down touches almost the entire surface of the body, without tightening the jaw or moving the head backwards.Although there are individual differences, this is generally the case when sleeping. It is possible to maintain the natural state of the body, prevent fatigue even when sleeping for a long time, and adjust the sleeping state to a comfortable state.

Furthermore, since the pillow body is held in a pressed state either forward or backward by a compression spring, the pillow body can be used in a stable state without fear of shaking during sleep.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view from the side showing the pillow adjustment device for a chair according to the present invention in a state in which it is pressed backwards, FIG. 2 is a cross-sectional view seen from the side in a state in which it is also pressed forward, and FIG. A sectional view as seen from the front, Fig. 4 is a sectional view showing how the support rod is attached, Fig. 5 is a side view showing the state of the pillow body when the backrest is erected, and Fig. 6 is a sectional view when the backrest is folded down. FIG. 7 is a side view of the conventional example, and FIG. 8 is a side view of the conventional example when the backrest is folded down. 1... Backrest 3... Support 4... Pillow body 5.
...Inner frame 6...Outer frame 7...Cushion material 8...
・Support shaft 9...Solid shaft 10...Support rod 12...
Bracket 13... Pin 14... Compression spring 3 Figure 1 Figure 2 Figure 7 Figure 8 Figure 4

Claims (1)

[Claims] 1. Cover the pillar (3) that stands up from the upper end of the backrest (1) with the pillow body (4), and attach it to the support shaft (8) provided at the top of the pillar (3) so that it can swing back and forth. A support rod (10) that stands up at the bottom of the column (3) is pivoted so that it can move up and down and swing back and forth, and the tip of the support rod (10) is attached to a bracket (12) that protrudes from the pillow body (4). The bracket (1
A pivot point with the support rod (10) of 2) is formed so that the support rod (10) can be moved back and forth by swinging the support rod (10) in the front-rear direction, and the support rod (10) is connected to the support rod (3). a pivot joint with,
A chair pillow adjustment device characterized in that a compression spring (14) is interposed between the pivot portion of the bracket (12) and the support rod (10).