JPH023954Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field to which the invention pertains) The invention relates to a sliding seat suitable for vehicles such as automobiles, and in particular, a pan-shaped seat cushion frame is placed on a slide rail. This is related to the sheet that is used.

(Background of the invention and problems with the prior art) Sliding separate seats are normally used for the front seats of automobiles, but the cushion frames of such seats are pan-shaped frames. This is often the case. In that case, the pan-shaped frame is placed on the upper rail of the slide rail and fixed with screws or the like. Normally, the slide rails are provided at the bottom of both left and right sides of the seat along the longitudinal direction of the vehicle body, and therefore the cushion frame is
It is designed to be supported by slide rails only on the left and right sides.

By the way, large loads are applied to such vehicle seats in the downward and longitudinal directions when the user sits down forcefully, when the seat suddenly starts or stops, and when the seat is subjected to vibrations while driving. Sometimes. Such a load is transmitted from the cushion frame to the vehicle body through the slide rail and supported. For this reason, in the case where the cushion frame is supported only on the left and right sides as described above, the cushion frame, especially the attachment part between the cushion frame and the slide rail, must have sufficient strength. be.

On the other hand, in automobiles, in order to reduce fuel consumption, it is required to reduce the vehicle weight as much as possible. Therefore, consideration is being given to using lightweight materials such as plastic and thin steel plates for seat frames as well. However, in bread-type cushion frames for sliding seats, it is difficult to use such lightweight materials due to the above-mentioned strength problems.

(Purpose of the invention) The present invention was made in view of the above circumstances, and its purpose is to effectively transmit the load applied to the shoe frame to the slide rail, thereby improving the load on the shoe frame. To reduce the load applied to a cushion frame and the load applied to an attachment part between a cushion frame and a slide rail, and to use a lightweight bread-type cushion frame.

(Characteristics of the invention) In order to achieve this purpose, in the invention, a reinforcing rod is spanned between the left and right slide rails, and an engaging portion that engages with the reinforcing rod is provided on the pan-shaped seat cushion frame. The load applied to the cushion frame is transmitted to the slide rail through the reinforcing rod.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

Figures 1 to 4 show an embodiment of the cushion frame support device according to the present invention. Figure 1 is an exploded perspective view of the device, Figure 2 is a side view of its assembled state, and Figure 3 is its main components. FIG. 4 is an enlarged exploded side view of the main parts.

As is clear from Fig. 1, slide rail 1
consists of a lower rail 2 and an upper rail 3 that is slidably supported by the lower rail 2, and the left and right lower rails 2 are fixed in parallel to each other along the longitudinal direction of the vehicle body. There is. This slide rail 1 is provided with a suitable locking device (not shown) so that the upper rail 3 can be fixed at any position on the lower rail 2. The upper rail 3 is provided with a flat upper surface 3a, and a bracket 4 projecting upward from the upper surface 3a is attached.

The bread-shaped plastic seat cushion frame 5 is provided with flat support parts 5a, 5a extending in the front and back direction on both left and right sides of the bottom surface, and the support parts 5a are connected to the top surface 3a of the upper rail 3.
2, and is fixed with bolts and nuts 6, etc., as shown in FIG. The support portion 5a of the cushion frame 5 has an opening 5 at a position corresponding to the bracket 4 of the upper rail 3.
b, so that when the cushion frame 5 is placed on the upper rail 3, the bracket 4 passes through the opening 5b and projects upward. In addition, cover portions 5c are provided at both left and right ends of the cushion frame 5, and the cover portions 5c protrude downward when the cushion frame 5 is placed on the upper rail 3. It is located on the outside and covers it.

As is clear from FIG. 2, a seat back frame 7 is pivotally supported by a pin 8 on a bracket 4 fixed to the upper rail 3. The lower end 7a of the back frame 7 extends downward from the pivot supported by the pin 8, and projects downward through the opening 5b of the cushion frame 5 when assembled. A rod-type reclining adjuster 9 is attached between the lower end 7a of the back frame 7 and the front end of the upper rail 3.
The length of the reclining adjuster 9 can be changed arbitrarily by operating the operating lever 9a, and is fixed at the current length when the operating lever 9a is released. Therefore, by operating the operating lever 9a, the back frame 7 can be rotated around the pin 8 or fixed there, and the back frame 7 can be adjusted to an appropriate inclination angle. It becomes like this. This reclining adjuster 9 is also covered by the cover portion 5c of the cushion frame 5.

As shown in FIG. 1, the pair of left and right upper rails 3, 3 are provided with notch-shaped rod locking portions 3b, 3b on the upper surface of their respective rear ends. As a result, a reinforcing rod 10, which is stretched between these upper rails 3, is supported in a locked manner. This reinforcement rod 1
0 is formed of a pipe made of metal or the like, and both ends thereof are covered with plastic caps 11 as shown in FIG. A locking piece 11a that protrudes in the outer circumferential direction is provided at the inner end of the cap 11, and the reinforcing rod 1
When the reinforcing rod 10 is fitted into the rod locking portion 3b of the upper rail 3, the locking piece 11a engages with the inner surface of the upper rail 3 to prevent the reinforcing rod 10 from slipping out in the left-right direction of the vehicle body. There is.

On the other hand, as is clear from FIG. 4, on the rear lower surface of the cushion frame 5, there is a concave groove-shaped rod engaging portion continuous in the left-right direction with which the reinforcing rod 10 engages when the cushion frame 5 is placed on the upper rail 3. 5d is provided. The engaging portion 5d is shaped so that the reinforcing rod 10 is fitted therein with almost no gap so that the load applied to the cushion frame 5 is transmitted to the reinforcing rod 10.

When assembling the cushion frame support device with such a configuration, first, the slide rail 1
Attach to the vehicle floor. Then, the reinforcing rod 10 is fitted into the rod locking portion 3b of the upper rail 3. Next, the top surface 3a of the top rail 3
The cushion frame 5 is placed on the seat, and its support portion 5a is fixed with bolts and nuts 6, etc. By doing this, the reinforcing rod 10 fits into the engaging portion 5d of the cushion frame 5, and the load applied to the cushion frame 5 is also supported by the reinforcing rod 10. That is, the cushion frame 5 is connected to the upper surfaces 3a, 3a of the left and right slide rails 1, 1 and the reinforcing rod 1.
0 so that it is supported on three sides.

Therefore, when the user sits down forcefully,
Alternatively, even if a large downward load is applied to the cushion frame 5 when the vehicle body vibrates greatly while driving, the load is transferred from the support parts 5a, 5a on both the left and right sides of the cushion frame 5. It is transmitted to the upper rail 3 of the slide rail 1, and is also transmitted from the rod engaging portion 5d on the rear lower surface to the upper rail 3 through the reinforcing rod 10. Moreover, such a load is particularly strong on the rear part of the seat cushion, so
The load is effectively supported by the reinforcing rods 10.

In addition, the load in the longitudinal direction of the vehicle body that is applied to the seat when suddenly starting or stopping is also transferred to the slide rail 1 through the bolts and nuts 6, etc. that fix the cushion frame 5 and the upper rail 3.
It is also transmitted to the slide rail 1 from the reinforcing rod 10 that is engaged with both the cushion frame 5 and the upper rail 3. In this case, the cushion frame 5 and the reinforcing rod 10
Since there is surface contact with the surface, the load is transferred more effectively. Therefore, conventional bolts and
Unlike the case where the cushion frame 5 and the slide rail 1 are fixed only by the nuts 6, excessive load is not applied to the area around the bolt holes of the cushion frame 5, and damage to the cushion frame 5 is prevented. become.

Furthermore, by extending such a reinforcing rod 10 between the left and right upper rails 3, 3, it is possible to prevent these upper rails 3, 3 from lamely touching each other when sliding the seat.
It is also possible to prevent displacement in the front-rear direction between the left and right sides of the cushion frame 5. By providing the cushion frame 5 with such a concave groove-shaped engaging portion 5d that is continuous in the left and right direction, a bent portion is formed there, and the rigidity of the cushion frame 5 itself is increased. .

In addition, in the above embodiment, the reinforcing rod 10
Although only one reinforcing rod 10 is provided on the rear side of the cushion frame 5,
If necessary, they may be provided in the front side or the center of the cushion frame 5, so that a plurality of them can be provided. Depending on the case, it is also possible to provide it only on the front side of the cushion frame 5.

Further, the locking portions 3b of the reinforcing rods 10 provided on the upper rail 3 may be protrusions located at the front and rear of the reinforcing rods 10, instead of being cut-out-like. In short, reinforcement rod 1
It is sufficient that the load applied in the downward direction and in the longitudinal direction can be supported.

(Effects of the invention) As is clear from the above explanation, according to the invention, the load applied to the cushion frame is absorbed not only by the support part for the slide rail, but also by the reinforcing rod that is stretched between the left and right slide rails. Since the load is transmitted to the slide rail side through the cushion frame, the load is transmitted effectively and the strength of the cushion frame can be reduced. Therefore, it is possible to reduce the weight of the cushion frame.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing one embodiment of the seat cushion frame support device according to the present invention;
The figure is a side view showing the assembled state by cutting one side of the seat cushion frame, FIG. 3 is a perspective view showing the locked state of the reinforcing rod used in the frame support device, and FIG. 4 is a side view showing the assembled state. is an enlarged exploded side view of the main parts of the frame support device. 1...Slide rail, 3...Atsupa rail,
3a...Top surface, 3b...Rod locking part, 5...Seat cushion frame, 5a...Support part, 5d
...Rod engaging portion, 10...Reinforcement rod.

Claims (1)

[Claims for Utility Model Registration] A pair of left and right slide rails 1, 1 are provided in the front-rear direction, and are mounted and fixed on the upper surface 3a of the slide rails 1 extending in the front-rear direction on both left and right sides of the pan-shaped seat cushion frame 5. supporting part 5
In the support device for a pan-type seat cushion frame, the supporting device includes reinforcing rods 1 on each of the slide rails 1 and 1.
A rod locking portion 3b capable of locking and supporting 0 is provided,
Reinforcement rod 10 between each slide rail 1, 1
The load applied to the seat cushion frame 5 by extending continuously in the left and right direction and engaging with the reinforcing rod 10 when placed on the slide rail 1 is applied to the seat cushion frame 5. A concave groove-shaped rod engaging portion 5d that transmits the
is provided, and when the seat cushion frame 5 is fixed to the slide rails 1, 1, the seat cushion frame 5 is attached to the left and right slide rails 1, 1.
A support device for a bread-type seat cushion frame 5, characterized in that it is supported on at least three sides by the upper surfaces 3a, 3a of the bread-shaped seat cushion frame 5 and the reinforcing rod 10.