JPH037215Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a reinforcing structure for a seat frame in an automobile seat device.

(Prior Art) Conventionally, in reclining seat devices, as described in, for example, Japanese Utility Model Application No. 14038/1983, the seat device is slidably engaged with a floor rail fixed to the floor surface. It is fixed via screws to two places on the front and back of the matching movable side rail.

However, in the above-mentioned seat device,
When your body moves forward during a rear-end collision, your body is pushed back toward the seatback by the reaction force because you are wearing a seatbelt, or when you recline the seat device, your weight shifts toward the seatback. If the vehicle is overturned, a large load will be applied to the seat frame, causing the seat frame to deform, causing the seat back, which is rotatably fixed to the seat frame, to tilt backwards, making it difficult for the driver to maintain a good driving posture. It was hot. Therefore, it is necessary to increase the rigidity by increasing the thickness of the seat frame or by providing a reinforcing plate, which causes the problem that the weight of the seat increases.

(Purpose of the invention) The present invention has been made in view of the above-mentioned problems, and the approximately T-shaped locking portion provided on the upper surface of the approximately central portion of the slider rail in the longitudinal direction of the vehicle body is connected to the seat cushion. By engaging with the substantially convex fitting hole provided at the bottom of the seat frame disposed inside, deformation of the seat frame can be prevented without increasing the plate thickness or providing a reinforcing plate. The present invention provides a seat device that has excellent strength and is easy to assemble.

(Structure of the invention) In order to solve the above problem, the structure of the invention is a seat device consisting of a seat cushion and a seat back. A pair of left and right slide rails extending in the direction are fixed, and slider rails supported and fixed at two places in the front and back at the lower part of the seat frame provided at the bottom of the seat cushion are slidably engaged with the slide rails, A substantially convex fitting hole is provided on either the upper surface of the approximately intermediate portion of the slider rail in the longitudinal direction of the vehicle body or the seat frame, and the slider rail is inserted into a wide hole located in one direction of the fitting hole on the other side. The present invention is characterized in that the seat frame is provided with a substantially T-shaped locking portion that engages with the fitting hole by sliding the seat frame relative to the slider rail after doing so.

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

FIG. 1 shows a side view of a sliding/reclining type seat 1 to which the present invention is applied.
3 represents a seat cushion portion, and 3 represents a seat back portion. It is rotatably mounted on a shaft 4 via.

The above sliding/reclining seat 1 is
A pair of left and right slide rails 7 fixed to the floor surface 5 via a bracket 6 and provided in the vehicle width direction.
A seat frame is installed at the bottom of the seat cushion section 2 via screws 9 in front and behind a pair of left and right slider rails 8 (one not shown) that slidably engages with the slider rails 8 (one not shown). 10 is fixed.

Note that reference numeral 11 is an operating lever for adjusting the amount of reclining inclination of the seat back portion 3.

Fig. 2 is a detailed enlarged view of part A in Fig. 1, and Fig. 3 is a cross-sectional view of part B in Fig. 2. The explanation will be omitted.

A sliding/reclining type seat 1 is located approximately at the center of the slider rail 8 in the longitudinal direction of the vehicle body.
An operation lever 17 that adjusts the amount of sliding in the front-rear direction.
A bracket 14 is fixed by welding, and a recess 14a facing toward the outside of the vehicle interior is formed in the bracket 14.
A pin shaft 18 that stands perpendicularly to the operating lever 17 and a lock member 13 that engages with a lock hole 12 provided on the side surface of the slide rail 7 are disposed on the pin shaft 4a. This locking member 13 is provided with an opening hole 13a into which the lower end of the pin shaft 18 is inserted, and when the operating portion of the operating lever 17 is pulled upward, the lower end of the pin shaft 18 is inserted into the opening hole 13a.
The claw portion 13 of the locking member 13 comes into contact with the edge of the lock member 3a.
b is rotated downward to release the locked state between the lock hole 12 of the slide rail 7 and the claw portion 13b of the lock member 13.

The bracket 14 provided on the slider rail 8 has a substantially T-shaped fitting hole 15 that engages with a substantially convex fitting hole 15 provided on the lower surface of the substantially central portion of the seat frame 10.
A locking portion 16 in the shape of a letter is provided, and a locking portion 16 in the shape of a letter T (not shown) is similarly provided at a substantially central portion of the other slider rail 8 .

In order to engage the fitting holes 15 provided in the seat frame 10 in the same left and right directions with the locking portions 16 provided on the top surface of the slider rail 8, first move the locking portions 16 into the fitting holes 15. After inserting the slide/reclining type seat 1 into the wide hole located toward the outside of the vehicle, and sliding the seat 1 toward the outside of the vehicle,
It is fixed to the front and rear of each slider rail 8 and the front and rear of the seat frame 10 via screws 9.

Next, to explain how the seat operates, when the operation lever 17 that adjusts the amount of sliding in the front-rear direction of the sliding/reclining type seat 1 is rotated upward, the claw portion 1 of the locking member 13 is rotated through the pin shaft 18.
3b rotates downward in conjunction with each other, the locked state with the lock hole 12 provided in the slide rail 7 is released, and the slide/reclining type seat 1 becomes able to slide back and forth. Furthermore, when the operating lever 17 is released, it is automatically locked by a spring (not shown).

Further, to adjust the reclining, when the operating lever 11 is pulled upward, the seat back 3 becomes rotatable, and by applying the body weight to the seat back 3, the seat back 3 rotates toward the rear of the vehicle body.

With the above configuration, when a large load is applied to the seat back 3 due to the reaction force of the body in the event of a rear-end vehicle collision, or when the seat back 3 is reclined, a load is applied to the seat back 3 due to the body weight. In this case, the seat frame 10 tends to displace with respect to the slider rail 8 in the peeling direction, but the locking portion 16 formed at the approximately intermediate portion of the slider rail 8 in the longitudinal direction of the vehicle body and the seat frame 10 Since the fitting holes 15 are engaged with each other, movement of the seat frame 10 in the peeling direction can be reliably prevented and the seat frame 10 will not be deformed. Since there is no need to increase the rigidity, the weight of the sliding/reclining seat 1 can be reduced. Furthermore, since the seat frame 10 and the slider rail 8 are engaged with each other through the substantially T-shaped locking portion 16 and the substantially convex fitting hole 15, for example, the seat frame 10 and the slide rail 7 may be engaged with each other. It is superior in strength because it is not necessary to form a long hole corresponding to the amount of seat sliding, as is the case when the seat frame 10 and the slider rail 8 are assembled. After inserting the seat 1 into the wide fitting hole 15, the seat 1 is slid relative to the slider rail 8, and then fixed to the front and rear of the slider rail 8 and the front and rear of the seat frame 10 via the screws 9. Therefore, both can be easily assembled and have excellent assembling properties.

In the present embodiment, the locking portions 16 are provided on each of the left and right slider rails 8, but the locking portions 16 may be provided on only one slider rail 8.

(Effects of the invention) With the above configuration, the present invention can prevent the seat frame from deforming, thereby ensuring a good driving posture for the driver in the event of a rear-end collision, and also by increasing the thickness of the seat frame. ,
Since there is no need to use a reinforcing plate, it has excellent strength and can reduce the weight of the sheet. Furthermore, it is excellent in assemblability.

[Brief explanation of the drawing]

FIG. 1 shows a side view of the sliding/reclining type seat device to which the present invention is applied, FIG. 2 is a detailed view of section A in FIG. 1, and FIG.
It is a sectional view taken along the line B of the B part in the figure. 1...Sliding/reclining seat, 2
... Seat cushion part, 3 ... Seat back part, 7 ... Slide rail, 8 ... Slider rail, 10 ... Seat frame, 15 ... Fitting hole, 16 ... Locking part.

Claims (1)

[Scope of utility model registration request] The seat device is composed of a seat cushion and a seat back, and a pair of left and right slide rails extending in the longitudinal direction of the vehicle body are fixed to the floor surface on which the seat device is placed. , a slider rail supported and fixed at two places in the front and rear is slidably engaged with the lower part of the seat frame provided at the bottom of the seat cushion;
Alternatively, one side of the seat frame is provided with a substantially convex fitting hole, and the other side is inserted into a wide hole located in one direction of the above fitting hole, and then the seat frame is inserted relative to the slider rail. A seat device for an automobile, comprising a substantially T-shaped locking portion that engages with the fitting hole by sliding.