JPH0140751Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reclining adjuster for automobiles, etc.

Some recent passenger cars are equipped with a low-shoulder type seat with a two-fold folding seat back, as shown in FIG.

FIG. 1 is a perspective view of a reclining seat equipped with a seat bag that can be folded up and down in two stages. 1 in Figure 1
2 shows the seat part, 2 shows the lower backrest part, 3 shows the upper backrest part, 4 shows the side part, 5 shows the pillow, and 18 shows the installation position of the upper recliner. This upper and lower folding seat back is of a low shoulder type, and the lower backrest part 2 is arranged below the upper backrest part 3, and the upper end part is located on both sides of the lower backrest part 2 at the upper end of the upper backrest part 3. A lower side portion 4 is attached. The upper backrest part 3 of the upper and lower folding seat bag shown in FIG.
Its tilt is controlled by a recliner (not shown). The low-shoulder type seat is designed to provide more freedom for the occupant's shoulders and to improve visibility for rear occupants. In FIG. 1, the two-dot chain line 4 shows the case of the conventional high shoulder type for comparison.

As shown in FIG. 2, in this kind of low-shodder type two-stage folding type, a reclining adjuster 6 for adjusting the angle of the upper backrest is installed in the upper backrest part 3. Here, FIG. 2 is a sectional view taken along the line A-A showing the structure and device position of a conventional reclining adjuster 6 for a seat bag that folds in two stages, such as the one shown in FIG. In FIG. 2, 3 is an upper backrest, 4 is a side part, 6 is a reclining adjuster, and 7 is a passenger's shoulder.

In the conventional system shown in Figs. 1 and 2, when acceleration is applied or the occupant sits deeply in the back,
There was an inconvenience in that the occupant's shoulder 7 hit the reclining adjuster 6, causing pain and discomfort.

The object of the present invention is to provide a reclining adjuster with a structure that does not cause such discomfort.

The structure of the reclining adjuster according to the present invention that achieves the above purpose is that the seat back is folded in two upper and lower stages, and has an upper backrest section, a lower backrest section located below the upper backrest section, and an upper backrest section on both sides of the upper backrest section. an upper bracket that is attached to a low shoulder type seat and is fixed to the upper backrest; and a side part whose upper end is lower than the upper end of the upper backrest; A lower bracket fixed to the lower bracket, a connecting pin fixed to the lower bracket and rotatably connecting the upper bracket, a spring that applies a restoring force between the upper bracket, and a locking mechanism between the upper and lower brackets. In the reclining adjuster, which includes an operating lever for adjusting the opening angle of the upper and lower brackets by connecting and releasing them, the length of the connecting pin is increased, a spacer is interposed between the lower bracket and the upper bracket, and the lower bracket is adjusted. The recliner main body made of the spring is located at the side portion away from the center of the seat bag in the width direction.

The reclining adjuster according to the present invention will be explained with reference to the drawings of one embodiment.

Figure 3 is a front sectional view of the reclining adjuster according to the present invention, Figure 4 is a left side view of the thing shown in Figure 3, Figure 5 is a right side view of the thing shown in Figure 3, and Figure 6 is the figure 1. FIG. 2 is a cross-sectional view taken along line A-A of FIG. In FIGS. 3, 4, 5, and 6, 8 is a lower bracket fixed to the side part 4;
9 is an upper bracket fixed to the upper backrest part 3; 10 is a connecting pin that is fixed to the lower bracket 8 at one end and rotatably connects the upper bracket 9 at the other end; and 11 is a spacer that fits loosely into the connecting pin 10. , the upper and lower brackets 8 and 9 are spaced apart.
This spacer 11 is fixed to the locking plate 14 at one end and to the upper bracket 9 at the other end. Reference numeral 12 denotes a spiral spring whose middle end was fixed to one end of the connecting pin 10 closer to the lower bracket 8, and its outer end was fixed to a locking plate 14 fixed to the lower bracket 8 side of the spacer 11. It is fixed to pin 13. The locking plate 14 includes teeth 14a. Reference numeral 15 denotes a hook that is pivotally supported on the lower bracket 8 via a pin 16, and is provided with pawl teeth 15a that engage with the teeth 14a of the locking plate 14, so that the hook 15 can be rotated about the pin 16. By this, the toothing is attached and detached, and the inclination of the upper backrest portion 3 due to the rotation of the locking plate 14 is maintained and released. Pin 16 is operating lever 1
Operated by 7.

The reclining adjuster of the present invention shown in FIGS. 3 to 5 is attached to the two-stage folding seat bag shown in FIG. 1, and its arrangement structure is shown in FIG. Shown below. In Fig. 6, 3 is the upper backrest part, 4 is the side part,
7 is the shoulder of the human body, 8 is the lower bracket, 9 is the upper bracket, 10 is the connecting pin, 11 is the spacer, 12
14 is a locking plate, and 17 is an operating lever. The upper bracket 9 is located within the upper backrest portion 3 and fixed therein, and the recliner main body including the lower bracket 8, spring 12, locking plate 14, etc. is located within the side portion 4 separated by a spacer 11. In FIG. 6, when the operating lever 17 is operated to disconnect the teeth 14a and 15a, the upper bracket 9 moves around the connecting pin 10 as indicated by the arrow in FIG. 5 due to the restoring force provided by the spring 12. The upper and lower brackets 8, 9 are tilted so that the opening angle becomes smaller, and by pushing up the upper backrest part 3 against this restoring force and engaging the teeth 14a, 15a at an arbitrary position, the upper and lower brackets 8, 9 can be opened. is fixed at that position, and the upper backrest portion 3 is positioned.

According to the reclining adjuster according to the present invention, as shown in FIG. 6, a spacer 11 is interposed on the connecting pin 10 of the reclining adjuster, and the spacer 11 is fixed to the upper bracket 9 fixed to the upper backrest part 3 and the side part 4. The lower brackets 8 are separated by a spacer 11. spring 12
is arranged on the outside of the lower bracket 8. The lower bracket 8 forming the main body of the recliner, the spring 12 engaged therewith, and the locking mechanism are removed from the upper backrest 3 as shown in FIG.
is located inside.

As described above, according to the reclining adjuster according to the present invention, a spacer is interposed between the lower bracket and the upper bracket, and the recliner main body including the lower bracket is located in the side part away from the center in the width direction of the seat bag. Shoulder part 7
does not hit the main body parts of the reclining adjuster unlike conventional ones, and therefore the occupant can obtain a comfortable seating effort.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a low shoulder type seat with a two-stage folding seat back, and Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, showing the position of a conventional reclining adjuster device for a two-stage folding seat back.
FIG. 3 is a sectional view of the reclining adjuster according to the present invention, FIG. 4 is a left side view of the one shown in FIG. 3, and FIG. 5 is a right side view of the one shown in FIG.
FIG. 6 is a sectional view corresponding to FIG. 2 showing the position of the reclining adjuster according to the present invention. In the drawing, 1 is the seat part, 2 is the lower backrest part, 3
is the upper backrest, 4 is the side part, 5 is the pillow,
6 is the reclining adjuster, 7 is the shoulder of the passenger, 8 is the lower bracket, 9 is the upper bracket, 10
is a connecting pin, 11 is a spacer, 12 is a spring, 13
14 is a locking plate, 15 is a hook, 16 is a pin, and 17 is an operating lever.

Claims (1)

[Scope of utility model registration request] The upper and lower folding seat back includes an upper backrest, a lower backrest located below the upper backrest, and an upper end located on both sides of the lower backrest, the upper end of which is lower than the upper end of the upper backrest. an upper bracket fixed to the upper backrest, a lower bracket fixed to the side part, and a lower bracket fixed to the lower bracket and fixed to the upper backrest. An operation for adjusting the opening angle of the upper and lower brackets by engaging and releasing a connecting pin that rotatably connects the brackets, a spring that applies restoring force between the upper and lower brackets, and a locking mechanism between the upper and lower brackets. In the reclining adjuster consisting of a lever, the length of the connecting pin is increased, a spacer is interposed between the lower bracket and the upper bracket, and the recliner body consisting of the lower bracket and the spring is moved away from the widthwise center of the seat back. A reclining adjuster characterized in that the reclining adjuster is located at the side portion.