JPS6320361Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a seat tilting device that tilts the backrest of an automobile seat, and more specifically, the invention relates to a seat tilting device that tilts the backrest of an automobile seat. The present invention relates to a seat tilting device that integrates a plate holder that prevents displacement in the right angle direction and a cover that covers the locking mechanism.

As shown in FIG. 1, the conventional seat tilting device is attached to the backrest 2 of the seat on a base plate 3 fixed to the seat 1 of the seat, as described in, for example, Japanese Utility Model Application Publication No. 53-80607. An arm 4 is rotatably connected around a shaft 5. A locking tooth 4A is formed on the end opposite to the attachment side of the arm 4, and a locking piece 9 connected to the drive piece 7 is attached to the locking shaft 8 protruding from the base plate 3. , external teeth 9A formed on this locking piece 9
is designed to mesh with the locking teeth 4A.
Further, the projection piece 6A of the operation lever 6 rotatably attached around the shaft 5 is connected to the drive piece 7.
It is now possible to come into contact with Therefore, when the operating lever 6 is rotated clockwise around the shaft 5, the engagement between the locking teeth 4A and the external teeth 9A is released. Note that when the operating lever 6 that has been rotated clockwise is released, it can be returned to its original position by the biasing force of the spring member 10. In order to prevent misalignment between the locking teeth 4A and the external teeth 9A, a fixing pin 1 is provided on the base plate 3 so as to protrude therefrom.
A plate-shaped plate holder 11 having a notch is fixed by 1A and 11B. Further, a cover 12 is attached to the base plate 3 to cover the entire plate holder 11 and a locking mechanism including the locking teeth 4A of the arm 4, the locking piece 9, and the like.

However, such a conventional seat tilting device has a plate holder 11 as shown in FIGS. 2 and 3.
The plate holder 11 has a size sufficient to cover the locking mechanism, and the cover 12 is made up of separate members, and an extra step is required to attach the cover 12 twice. This naturally causes an increase in costs, and has the problem of increasing the weight and thickness of the entire device.

The present invention was made to solve the above problems, and it integrates the conventional plate holder and cover by providing a hold cover that is plate-shaped and fixed to a pin shaft protruding from the base plate. It is an object of the present invention to provide a seat tilting device that can reduce the weight of the entire device and reduce the number of manufacturing steps to reduce costs.

Embodiments of the present invention will be described below based on the drawings. Note that the same reference numerals are used for each member that is common to the conventional device, and a description of the member will be omitted. In FIG. 4, the hold cover 20 is attached to pin shafts 20A and 20B protruding from the base plate 3, and the periphery of the hold cover 20 is bent at a substantially right angle toward the base plate 3. The entire locking mechanism is therefore well covered. Note that since the operating lever 6 needs to be rotated clockwise or counterclockwise around the shaft 5, a cutout groove 2 is provided in the hold cover 20 to guide the operating lever 6 so that it can rotate freely.
0D is provided.

In this way, the hold cover is a combination of a conventional plate holder and a cover, so
This prevents each component of the locking mechanism, which is composed of a large number of relatively thin plate-like members, from shifting in the direction perpendicular to the plate surface, thereby ensuring the operation of the locking mechanism, and reducing the thickness and weight of the device. The intended purpose of reducing the number of manufacturing steps can be achieved.

FIG. 5 shows another embodiment of the present invention, in which a backing plate 21 is fixed to the back side of the hold cover 20 to prevent the heads of the shaft 5 and locking shaft 8 from being exposed on the front side of the hold cover 20. At the same time, the heads of the pin shafts 20A and 20B are directly attached to the hold cover 2.
A recessed mounting hole 22 is provided so as not to protrude from the front surface of the 0. The embodiment shown in FIG. 5 has the effect of improving the appearance in addition to the effect of the embodiment shown in FIG. 4.

In addition, in the above embodiment, the hold cover 2
Although the periphery of 0 is bent at a right angle, it may be a simple flat plate.

[Brief explanation of the drawing]

Figure 1 is a schematic front view of a conventional seat tilting device;
Fig. 2 is a perspective view of a plate holder attached to a conventional device, Fig. 3 is a perspective view of a cover attached to a conventional device, Fig. 4 is a perspective view showing the seat tilting device of the present invention, and Fig. 5 FIG. 2 is a perspective view of main parts showing another embodiment of the present invention. 1...Seat portion, 2...Backrest, 3...Base plate, 4...Arm, 6...Operation lever, 20...
Hold cover, 20A, 20B...pin shaft.

Claims (1)

[Scope of utility model registration request] A base plate 3 fixed to the seat side of the seat, fixed to the backrest 2, rotatably attached to the base plate at a shaft 5, and locking teeth 4A are formed at the end opposite to the mounting side. Arm 4 and
A locking piece 9 is rotatably attached to a locking shaft 8 protruding from the base plate and has external teeth 9A that engage with the locking teeth, and a locking piece 9 is rotatably attached around the shaft. In the seat tilting device, the seat tilting device has a locking mechanism including an operating lever 6 that is connected to the locking piece, and a driving piece 7 that is connected to the locking piece and comes into contact with the protruding piece 6A of the operating lever.
The arm 4, the locking piece 9, the drive piece 7, the operating lever 6, etc., which are each component of the locking mechanism, are attached to the pin shafts 20A and 20B protruding from the plate surface, respectively. A seat tilting device characterized in that a hold cover 20 is provided to suppress displacement.