JPS6320587Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seat slide device for automobiles, etc., and more specifically, the present invention has a lower rail fixed to a floor panel and an upper rail fixed to a seat frame, and is unlocked by operating a lock lever. Accordingly, the present invention relates to a seat slide device configured so that the relative positions thereof can be changed.

This type of device is installed between the floor panel and the seat cushion, so if a large force is applied to the seat cushion in the event of a collision or sudden stop, the
Since not only a force in the longitudinal direction but also a force that tends to separate the lower rail and the upper rail acts on the lower rail and the upper rail, a high peeling strength is required between the lower rail and the upper rail.

The present invention was developed in view of the above circumstances, and its purpose is to provide a seat slide device that increases the peeling strength between the lower rail and the upper rail, and that also enables reliable engagement between the lower rail and the upper rail with a simple operation. It is about providing.

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 4, 1 is a lower rail fixed to a floor panel (not shown), and 2 is an upper rail fixed to a seat frame. A roller 3 is arranged between the base wall portions of the lower rail 1 and the upper rail 2, and a steel ball 4 is arranged between the flange portions. These rollers 3 and steel balls 4 are aligned and held by a retainer (not shown), and the upper rail 2 is held relative to the lower rail 1.
allows for relative movement. 5 is a lock plate whose base is fixed to the lower surface of the lower rail 1. A plurality of lock teeth 5a are downwardly carved at regular intervals on the tip of the sideward extension of the lock plate 5. 6 is attached to the hanging part of the L-shaped lock lever bracket 7 fixed to the upper surface of the upper rail 2 with a pin 8 at its intermediate part so that it can rotate vertically in a plane parallel to the side surface of the upper rail 2. The lock lever is pivotally mounted and has a flange 6a at its lower end so as to engage with the lock plate 5 from below. Furthermore, this flange 6a has lock teeth 5a of the lock plate 5.
A plurality of lock holes 6b are provided which are selectively engaged with each other and are disengaged at the lower position. Reference numeral 9 denotes a helical spring interposed between the lock lever bracket 7 and the lock lever 6 at a proper position, and constantly urges the upper end operation knob 6c of the lock lever 6 downward. Note that a spring (not shown) is stretched between the lower rail 1 and the upper rail 2, and urges the upper rail 2 to the left in FIG.

Next, the operation of the above embodiment will be explained.

First, when the lock lever 6 (operation knob 6c) is released, the spring 9 urges the lock lever 6 in a direction to press against the lock plate 5, and as shown in FIG. It meshes with the tooth 5a. Therefore, it becomes a locked state and movement of the upper rail 2 is prevented.

On the other hand, when the operating knob 6c is lifted and the lock lever 6 is rotated clockwise (see the imaginary line in Fig. 4), the flange 6a moves downward and disengages from the lock teeth 5a of the lock plate 5, releasing the locked state. be done. Therefore, the upper rail 2 can move in the left-right direction in FIG. When the desired adjustment position is obtained, when the operating knob 6c is released, the lock lever 6 is again pressed against the lock plate 5 by the movement of the spring 9, and the lock hole 6b engages with the nearby lock tooth 5a. Therefore, it returns to the locked state again.

In such a seat slide device, the lock lever 6 is provided with a flange 6a, and this flange 6a engages with the lock plate 5 from below, so that in the event of a collision, etc., the lock lever 6 is connected to the lower rail 1 and the upper rail 2. works to prevent peeling. Therefore, the peel strength is greatly increased.

In the above embodiment, the lock plate 5 has lock teeth 5a, and the lock lever 6 has lock holes 6.
Although the lock plate 5 is provided with a lock hole 6b and the lock lever 6 is provided with a lock tooth 5a as shown in FIG. 5, the same effect as in the embodiment described above can be obtained.

As explained above, according to the present invention, it is possible to increase the peeling strength between the upper rail and the lower rail, so it is safe even in the event of a collision. Furthermore, the number of parts is small, the structure is simple, and operation can be performed by raising and lowering the knob of the lock lever.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the device of the present invention, Fig. 2 is a sectional view along AA of Fig. 1, Fig. 3 is an explanatory diagram showing the relationship between the lock lever and the lock plate, and Fig. 4 is a diagram of the device of the present invention. FIG. 5 is a schematic diagram showing the operating state, and is an explanatory diagram of another embodiment of the present invention. 1...Lower rail, 2...Upper rail, 5...Lock plate, 5a...Lock tooth, 6...Lock lever, 6a...Flange, 6b...Lock hole, 7...Lock lever bracket, 8...Pin.

Claims (1)

[Scope of utility model registration request] It has a lower rail fixed to the floor panel and an upper rail fixed to the seat frame,
In a seat slide device configured such that the relative position between the two can be changed by unlocking by operating a lock lever, a lock lever bracket is fixed to the upper rail, and a lock lever bracket is attached to a side of the lock lever bracket substantially parallel to the side surface of the upper rail. a lock lever having a flange at the bottom thereof is pivotally mounted so as to be vertically rotatable in a plane, and a lock plate is provided along the lower rail so that the flange of the lock lever engages from below;
A seat slide device characterized in that one of the flange of the lock lever and the lock plate is provided with lock teeth, and the other is provided with a lock hole that selectively engages with the lock teeth.