JPH0511737Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a slide mechanism that is interposed between an automobile seat and a vehicle body and slides the seat relative to the vehicle body.

(Prior Art) An example of a conventional slide mechanism for an automobile seat will be explained based on FIG. 5.

In the figure, 101 is a pedestal fixed to the floor of the vehicle body, and a lower slider 102 is fixed to the upper surface of this pedestal 101. lower slider 10
2 is a bottom portion 102 fixed to this pedestal 101;
a, an upwardly extending portion 102b extending upwardly from both left and right sides of the bottom portion 102a, and an outwardly extending portion 102c extending outwardly from the upper ends of both upwardly extending portions 102b.

An upper slider 103 fixed to the seat side is provided above the lower slider 102.
The Atsupah slider 103 includes an upper surface 103a fixed to the seat side, a lower extending portion 103b extending downward from the outside of the vehicle on the upper surface 103a, a lower extending portion 103c extending downward from the inside of the vehicle on the upper surface 103a, and It consists of inner extension parts 103d and 103e extending inward from both lower extension parts, respectively. A steel ball 104 held by a retainer (not shown) and a roller 105 are interposed between the inner extension portions 103d and 103e and the outer extension portion 102c, and between the bottom portion 102a and the upper surface 103a. . The steel balls 104 and rollers 105 roll when the Atsuba slider 103 slides.

Furthermore, on the side surface of the outer downward extending portion 103b,
A bracket 106 for attaching the belt anchor of the seat is fixed. At the lower end of this bracket 106 is a hook portion 106 that bends upward.
a, and on the other hand, the above-mentioned pedestal 10
1, there is a hook 101 on the outside of the vehicle that is bent downward and faces the hook 106a.
It forms a. When a tensile load (arrow in FIG. 5) is applied to the belt anchor, the hook 101a and the hook 106a receive the load.

However, in this structure, the hooks 101a and 106a that receive the load must necessarily be formed on the sides of the lower slider 102.
The pedestal 101 has to be extended to the outside of the vehicle body as shown in the figure, and there is a drawback that an extra space is required in the width direction of the slider.

(Purpose of the invention) The present invention is intended to eliminate the above-mentioned drawbacks, and aims to provide a sliding mechanism for a car seat that allows a seat belt anchor to be attached with a minimum space in the width direction of the slider. purpose.

(Structure of the invention) The present invention is a sliding mechanism for an automobile seat, which is composed of a lower slider fixed to the vehicle body side and an Atsupas slider fixed to the seat side, and in which the lower slider and the Atsupas slider are configured to be slidable relative to each other. The lower slider has a bottom portion fixed to the vehicle body, an outer wall portion extending upward from the outer end of the vehicle body at the bottom portion, and an outer wall portion extending from the inner end of the vehicle body to approximately the same height as the outer wall portion at the bottom portion. The atsupa slider has an inner wall portion extending upward, an inwardly extending portion extending inwardly from the upper end of the inner wall portion, and a hook portion extending inwardly from the upper end of the outer wall portion and further bending downwardly. A ball is placed between a horizontal part that is housed between the outer wall part and the inner wall part and is placed on the upper surface of the bottom part via a roller, and the outer wall part that protrudes upward from the horizontal part toward the inside of the hook part. a protruding part for storing the ball; an upper part extending upward from the horizontal part to the outside of the lower slider and storing the ball between it and the wall part; It covers from above and forms a receiving part whose upper surface is fixed to the seat, and in this receiving part, a mounting part to which a seat belt anchor is attached extends upward from substantially above the outer wall part. .

According to such a configuration, the load from the seat belt can be received by the hook part formed on the lower slider and the protrusion part formed on the upper slider, so that the load from the hook part etc. on the sides of both sliders can be received. There is no need to provide a receiving part. Therefore, it is possible to set the position of the anchor attachment portion of the seat belt almost above the outer wall portion, thereby almost eliminating wasted space in the width direction of the slide mechanism. Moreover, since the upper part of the hook part is covered with the receiving part of the upper slider, this hook part is prevented from riding on the protruding part of the lower slider and peeling off.

(Example) Embodiments of the present invention will be described with reference to FIGS. 1 to 4.

In FIG. 1, 1 is a car seat;
A slide mechanism 2 is provided at both ends of the lower part of the seat 1. The slide mechanism 2 includes a lower slider 3 fixed to the vehicle body side and an upper slider 4 fixed to the seat side, and the lower slider 3 and the upper slider 4 are configured to be slidable relative to each other.

The lower slider 3 has its front and rear portions fixed to the vehicle floor via pedestals 5 and 6, respectively. This lower slider 3 has a bottom part 31 whose front part is fixed to the upper surface of the holder 5 by rivets 7, 8, and 9, and whose rear part is fixed to the upper surface of the receiver part 6 by rivets 10, 11. Outer wall portion 3 extending upward from the outer end of the vehicle body
2, an inner wall portion 33 extending upward from the inner end of the vehicle body at the bottom portion 31 to approximately the same height as the outer wall portion 32, an inner extending portion 34 extending inward from the upper end of the inner wall portion 33, and the outer wall. A hook portion 35 extends inward from the upper end of the portion 32 and bends further downward.
and is formed.

In this lower slider 3, between the rivets 8 and 9 and between the rivets 9 and 10,
Rollers 12 and 2 rolling inside the lower slider 3
Retainer 1 that holds steel balls 13
4 is placed. As shown in FIG. 4, the retainer 14 includes ball grooves 14a for storing the steel balls 13 on both sides of the lower slider 3;
It has a roller storage part 14b that holds the roller 12 extending in the width direction of the slide mechanism 2 from both front and rear sides. The roller 12 has rivets 8, 9, or 1
The two retainers 14 are placed on the upper surface of the bottom part 31 so as to be in contact with the retainers 14, and therefore, the movement of the two retainers 14 is restricted between the rivets 8 and 9 and between the rivets 9 and 10, respectively.

The above-mentioned top slider 4 includes a horizontal portion 41 that is placed on the bottom portion 31 via the two rollers 12 and is housed between the outer wall portion 32 and the inner wall portion 33, and a horizontal portion 41 that is connected to the hook from the horizontal portion 41. Part 35
a protruding portion 42 that protrudes upward toward the inside of the
An upper extension part 43 extends upward from the horizontal part 41 to the outside of the lower slider 3 through between the hook part 35 and the inner extension part 34; , and a receiving portion 44 whose upper surface is fixed to the seat. That is, the protruding portion 42 and the hook portion 35 are in a state facing each other. Further, the protruding portion 42 and the upper extension portion 43 are arranged between the protruding portion 42 and the outer wall portion 32;
The steel ball 13 is formed between the upper extension part 43 and the inner wall part 33 so as to be housed therein.

Further, in the receiving portion 44, the outer wall portion 3
A mounting portion 45 extends upward from substantially above the seat belt 2, and a mounting bracket 16 of a seat belt anchor 15 (FIG. 1) is fixed to this mounting portion 45.

In such a structure, the horizontal portion 41 of the Atsupa slider 3 is supported by two rollers 12,
In addition, the four surfaces of the hook portion 35, the outer wall portion 32, the horizontal portion 41, and the protruding portion 42, the inner extension portion 34, and the inner wall portion 3
3. The top slider 4 can slide relative to the lower slider 3 while its position is regulated in the vertical and width directions by the steel balls 13, two of which are in contact with each of the four sides of the horizontal portion 41 and the upper extension portion 43. can. Moreover, the upward tensile load from the belt anchor 15 is received by the hook portion 35 and the protruding portion 42 that face each other. That is, in this structure, the hook portion 35 and the protruding portion 42 are similar to the hook 10 in FIG.
It has the same function as 1a and 106a.

As described above, this slide mechanism 2 has the belt anchor mounting portion 45 substantially above the outer wall portion 32 of the lower slider 3, and the belt anchor 1
Since the load-receiving portion 5 is formed within the slider 3, there is no wasted space in the width direction of the vehicle body, unlike in the conventional case. Therefore, the dimension a (Figs. 1 and 2) between both slide mechanisms 2 can be made larger, so the leg space for the rear seat occupant can be made wider, and the cushion portion of the seat 1 can also be made wider. This also improves the cushioning properties of the seat. Moreover, since the parts receiving the load, that is, the hook part 35 and the protruding part 42, are located closer to the centers of the sliders 3 and 4 than the hooks 101a and 106a in FIG. 5, the moment due to the load is small and the strength is also improved. It has an advantageous structure.

(Effects of the invention) As described above, the present invention has a slide mechanism consisting of a lower slider and an upper slider that slide each other, in which a protrusion and a hook are formed on the lower slider and an upper slider, respectively. Since the load is received inside both sliders, there is no need to provide a portion receiving the load on the outside of the slider. Therefore, it is possible to form the mounting portion of the belt anchor almost above the outer wall surface of the lower slider, which has the effect of minimizing the space in the width direction of the slide.
Furthermore, since the upper part of the protrusion is covered by the receiving part on the upper slider side, it is possible to prevent the hook part of the upper slider from running over the protrusion and peeling off due to the load.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an automobile seat according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line - - in Fig. 3, Fig. 3 is a side view of the slide mechanism provided in the seat, and Fig. 4 is a FIG. 5 is a perspective view of a retainer placed in the slide mechanism, and a sectional view showing a conventional slide mechanism. 1... Car seat, 2... Slide mechanism,
3...Lower slider, 4...Atsupa slider, 1
2...roller, 13...steel ball, 15...
...Belt anchor, 16...Mounting bracket, 3
1...bottom, 32...outer wall, 33...inner wall,
34... Inner extension part, 35... Hook part, 41... Horizontal part, 42... Projection part, 43... Upper extension part, 44...
...Receiving part, 45...Mounting part.

Claims (1)

[Scope of utility model registration request] A slide mechanism for an automobile seat is composed of a lower slider fixed to the vehicle body and an atspa slider fixed to the seat side, and the lower slider and the atspa slider are configured to be slidable relative to each other. an outer wall portion extending upward from the outer end of the vehicle body at the bottom portion; and an inner wall portion extending upward from the inner end of the vehicle body at the bottom portion to approximately the same height as the outer wall portion; The atspa slider has an inwardly extending portion extending inwardly from the upper end of the inner wall portion and a hook portion extending inwardly from the upper end of the outer wall portion and further bending downward. a horizontal part that is housed and placed on the upper surface of the bottom via a roller; a protruding part that protrudes upward from the horizontal part toward the inside of the hook part and stores the ball between it and the outer wall; an upper extension part extending upward from the lower slider to the outside of the lower slider and storing the ball between the upper extension part and the upper extension part, and covering the hook part from above by being located at the upper end of the upper extension part;
A vehicle for use in an automobile, characterized in that the upper surface forms a receiving portion that is fixed to the seat, and in this receiving portion, a mounting portion to which a seat belt anchor is attached extends upward from substantially above the outer wall portion. Seat sliding mechanism.