JPH0435224Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a mounting structure for a seat cushion that is attached to a seat frame.

``Prior Art'' A conventional mounting structure for a seat cushion is shown in FIG. 7, for example.

That is, the seat cushion 2 is attached to the seat frame 1.
When mounting the seat cushion 2, the front part of the seat cushion 2 is fixed to the front bar 1a of the seat frame 1, and a locked hook 2b is fixed to the rear part of the seat cushion 2 so as to protrude rearward. The locking member 1 has this locked hook 2b fixedly attached to the seat frame 1.
It is inserted into b.

"Problems to be Solved by the Invention" However, in such conventional technology, since the rear part of the seat cushion 2 is supported only by the locking member 1b and the locked hook 2b, the holding force is low. is weak, and the seat cushion 2 becomes loose.
The problem was that it sometimes felt unstable.

The present invention was made in view of these conventional problems, and an object of the present invention is to provide a mounting structure for a seat cushion that can securely hold the rear portion of the seat cushion.

``Means for Solving the Problems'' The gist of the present invention for achieving the above purpose is that, in the mounting structure of the seat cushion to be attached to the seat frame, the rear end of the seat frame is low. a horizontal bar is disposed at a position, a central portion of the horizontal bar is raised to form a central locking portion, and locking members projecting upward are fixedly attached to both sides of the horizontal bar, respectively, and a seat cushion is provided. low on the side of the rear end of the
A side hook that is inserted into and locked by the locking member of the seat frame is provided so as to protrude rearward, and the center hook of the seat frame is placed at a high position in the center of the rear end of the seat cushion. The mounting structure for a seat cushion is characterized in that a central hook is provided to protrude rearward and engages with a stop portion from below.

"Operation" Both sides of the rear end of the seat cushion are locked by passing the side hooks over the horizontal bars of the seat frame at a low position and by inserting them into the locking members.

The center portion of the rear end of the seat cushion is locked at a high position by engaging the center hook with the center locking portion of the seat frame from below.

The side hooks at the rear end of the seat cushion mainly prevent the rear of the seat cushion from sinking downward, and the central hooks at the center prevent the rear of the seat cushion from floating. is securely held from above and below and will not wobble.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 to 6 show an embodiment of the present invention.

As shown in FIG. 1, a seat 10 is constructed by attaching a back cushion 11 and seat cushions 40, 40a to a seat frame 20.

As shown in FIGS. 1 to 4, the seat frame 2
0 consists of a seat frame 30 and a backrest frame 21 pivoted at a fulcrum 22, the backrest cushion 11 is attached to the backrest frame 21, and the seat frame 30 is a movable seat frame 30 installed on a seat slide (not shown). It forms a unit.

The seat frame 30 as a whole is formed in the shape of a frame made of pipe material, and a horizontal bar 31, which is a strength member, is disposed at a low position at the rear end, and the center part of the horizontal bar 31 is raised to provide a center engagement. A stop portion 32 is formed. Central locking part 32 of horizontal bar 31
Ring-shaped locking members 33, 33 projecting upward are fixedly provided on both outer side portions, respectively.

Between the horizontal bar 34 at the front end and the horizontal bar 31 at the rear end of the seat frame 30, side panels 35, 35 are installed at the sides, and from the central locking part 32 at the center. A central panel 36 is provided that extends downwardly and forwardly.

As shown in FIGS. 5 and 6, in this embodiment, the seat portion of the seat is divided into two seat cushions 40 and 40a, each of which has a cage-shaped elastic wire as its core. It is formed.

At a low position on the side of the rear end of the seat cushion 40, there is a side hook 4 which is inserted through the locking member 33 of the seat frame 30 and locked by the elastic wire.
1 is provided so as to protrude rearward. The tip 41a of the side hook 41 is slightly bent upward.

A central hook 42 that engages with the central locking portion 32 of the seat frame 30 from below is provided at a high position in the center of the rear end of the seat cushion 40 so as to protrude rearward. Tip 4 of central hook 42
2a is also slightly bent upward. An insertion hole 37 for a center hook 42 is bored in the rear raised surface of the center panel 36 in the center of the seat frame 30.

Only side hooks 41 are provided on the seat cushion 40a.

Next, the action will be explained.

To attach the seat cushions 40, 40a, first place the seat cushions 40, 40a at a position slightly forward of the seat frame 30, and then move them rearward.

The side hook 41 of the rear end of the seat cushion 40 passes over the horizontal bar 31 of the seat frame 30 at a low position, and is inserted into and locked by the locking members 33, 33.

At a high position in the center of the rear end of the seat cushion 40, the center hook 42 passes through the insertion hole 37 of the seat frame 30 and is locked by engaging with the center locking part 32 from below.

The seat cushion 40a forms the sides of the seat and is locked at the rear only by side hooks 41.

The front portions of the seat cushions 40, 40a are fixed to the front portion of the seat frame 30 by fixing means (not shown).

When vibration or the like is applied to the seat cushion 40 and the rear end portion attempts to sink downward, the side hook 41 hits the horizontal bar 31 of the seat frame 30 from above to prevent this sinking.

Conversely, if the rear end of the seat cushion 40 tries to lift up, the central hook 42 hits the central locking part 32 of the seat frame 30 from below, preventing the rear end of the seat cushion 40 from lifting. suppress. Also,
The center hook 42 is inserted into the insertion hole 37 of the seat frame 30.
Since the seat cushion 40 is inserted through the insertion hole 37, vertical movement is restricted by the insertion hole 37, and also here, the rise and fall of the rear end portion of the seat cushion 40 is suppressed.

Therefore, the rear portion of the seat cushion 40 is securely held from above and below, and does not wobble.

In the seat cushion 40a, the rear part is held by the side hooks 41, and only the sinking is suppressed, but since the area is small, this is sufficient and no problem occurs.

"Effect of the invention" According to the mounting structure of the seat cushion according to the present invention, the ups and downs of the rear end are reliably suppressed, so the holding force of the seat cushion is increased, and there is no wobbling, resulting in a feeling of instability. You will no longer feel

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, in which FIG. 1 is a cross-sectional view of the main part showing how the seat cushion is attached, FIG. 2 is a side view of the seat frame,
Fig. 3 is a partial plan view of the seat frame, Fig. 4 is a view taken in the direction of the arrow in Fig. 2, Fig. 5 is a partial plan view of the seat cushion, Fig. 6 is a side view, and Fig. 7 is a conventional seat cushion. FIG. 3 is a sectional view of a main part showing a state in which the part cushion is attached. 10...seat, 11...back cushion, 2
0... Seat frame, 21... Backrest frame,
30...Seat frame, 31...Horizontal bar, 32
... central locking part, 33 ... locking member, 34 ... horizontal bar, 35 ... side panel, 36 ... center panel, 37 ... insertion hole, 40, 40a ... seat cushion, 41 ... ...Side hook, 42...Central hook.

Claims (1)

[Claim for Utility Model Registration] In the mounting structure of the seat cushion attached to the seat frame, a horizontal bar is disposed at a low position at the rear end of the seat frame, and the center part of the horizontal bar is raised. to form a central locking part, and locking members protruding upward are fixedly installed on both sides of the horizontal bar, respectively, at low positions on the sides of the rear end of the seat cushion;
A side hook that is inserted into and locked by the locking member of the seat frame is provided so as to protrude rearward, and the center hook of the seat frame is placed at a high position in the center of the rear end of the seat cushion. A mounting structure for a seat cushion characterized by a rearwardly projecting central hook that engages with a stop from below.