JPS6041159Y2 - Seats for vehicles, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vehicle seat used for various types of seats such as automobile seats.

2. Description of the Related Art A seat for a vehicle or the like includes a seat cushion 1 and a seat back 2, as shown in FIG. 1, for example.

The seat cushion 1 has a seat frame 3, within which a pad receiver 5 for receiving and supporting a seat pad 4 is arranged along the surface of the frame 3.

For example, as shown in FIG. 2, the pad receiver 5 includes a frame 6 having left and right frame sides facing each other and a center frame side.
An elastic wire 7, such as a piano wire, is strung across.

The pad receiver 5 is elastically stretched within the seat frame 3 by a plurality of coil springs 8 suspended between the left and right frame sides of the frame 6 and the left and right frame sides of the seat frame 3.

The left and right frame sides of the seat frame 3 to which the coil springs 8 are engaged are, as shown in FIG. A through hole 10 is formed in the upper flange portion 3a along the frame surface, into which the tip of a hook portion 9 provided at one end of the coil spring 8 is inserted and locked.

On the other hand, a hook portion 11 provided at the other end of the coil spring 8
is hooked onto the frame 6 of the pad receiver 5, and in this way, the pad receiver 5 is stretched within the seat frame 3 along the surface direction of the frame 3 by the coil spring 8.

The work of stretching the pad receiver 5 into the seat frame 3 is carried out in the usual manner.

That is, first, the tip of one of the hooks 9 of the spring 8 is inserted into the through hole 10 on either the left or right side of the seat frame 3, and is hooked and locked.

In this case, the hook portions 9 and 11 of the coil spring 8 are usually deeply bent into almost a ring shape, respectively, so that they will not come off the frame 3 or 6 due to vibrations, impacts, etc. Therefore, the hook part 9
In order to engage the spring 8 with the through hole 10, the spring 8 cannot be hooked in the direction along the surface of the upper flange portion 3a in which the through hole 10 of the frame 3 is formed; For example, hang it in a state close to 90 degrees to the surface.

In this case, the through hole 10 in the first left or right frame side where the end pad receiver 5 is not arranged in the seat frame 3
The locking of the hook portion 9 of the spring 8 against the upper surface flange portion 3a is relatively easy because the angle of the spring 8 relative to the upper surface flange portion 3a can be almost freely selected even inside the frame 3. be able to.

Next, after hooking and locking the hook portion 11 at the other end of these springs 8 to either the left or right frame side of the frame 6 of the pad receiver 5, the pad receiver 5 is attached to the seat frame using a jig. 1 and 3 toward the other right or left frame side, and in this state, the other right or left frame side of the frame 6 of the pad receiver 5 and the seat frame 3 opposite thereto. Similarly, a coil spring 8 is suspended between the other right or left frame side.

However, in this case, since the pad receiver 5 is already arranged in the frame 3, the hook part 9 of the coil spring 8
The work of inserting the screw into the through hole 10 of the frame 3 becomes extremely difficult.

That is, in this case, when hooking the hook portion 9 of the spring 8 into the through hole 10 of the upper flange portion 3a of the frame 3, the spring 8 is held at an angle of approximately 90° on the inside of the frame 3 with respect to the surface of the upper flange portion 3a. Since it is almost impossible to hook the pad from any direction due to the existence of the pad receiver 5 and the jig that supports it, in this case, it is necessary to hook the frame 3 from outside as shown by the broken line 8' in FIG. At this point, the hook portion 9 of the spring is engaged with the through hole 10 from the required direction with respect to the surface of the upper flange portion 3a, and then rotated to the inside of the frame 3 as shown by the solid line in FIG. A method is adopted in which the hook portion 11 of the pad receiver 5 is hooked onto the frame 6 of the pad receiver 5, which is extremely complicated and has low workability.

The present invention provides a seat for a vehicle or the like that avoids such drawbacks.

An example of the present invention will be explained with reference to FIG.
In the figure, parts corresponding to those in FIG. 1 are designated by the same reference numerals, and redundant explanation will be omitted.

In the present invention, as shown in FIG. 4, a seat pad 4 is provided in the seat frame 3 in the same way as explained in FIG.
A pad receiver 5 for receiving and supporting the pad receiver is arranged along the surface of the frame 3.

The hard support 5 is elastically supported by a plurality of coil springs 8 on the left and right frame sides of the seat frame 3, for example. on the left and right sides of the frame,
The locking portion of the coil spring 8 has a special structure.

That is, in the present invention, for example, the left and right frame sides of the seat frame 3 on which the coil springs 8 are suspended are
As shown in FIG. 6 and FIG. 6, the upper flange portion 3a along the frame surface and the side wall 3b bent at a right angle from the outer edge thereof have a substantially L-shaped cross section, and the upper flange portion along the frame surface 3a is formed with a through hole 10 through which a hook portion 9 formed at one end of the coil spring 8 is inserted and locked.In particular, in the present invention, the diameter of this through hole 10 is approximately 2 times the wire diameter of the coil spring 8. At the same time, a portion of the bent shoulder portion 3c between the upper surface flange portion 3a and the side wall 3b, which faces each through hole 10, is crushed, and a portion of the bent shoulder portion 3c between the upper surface flange portion 3a and the side wall 3b is crushed, and a portion of the bent shoulder portion 3c is formed from the edge of the through hole 10 toward the outside of the frame 3. That is, the upper surface flange portion 3
It spreads in a fan shape from a to the side wall 3b, opens to the outer peripheral surface of the frame 3, and further extends from the upper surface flange portion 3a to the side wall 3.
A recess 12 having an inclined surface that gradually becomes deeper toward the b side is provided.

As mentioned above, in the present invention, the coil spring 8
A through hole 10 into which the hook portion 9 of the frame 3 is inserted and engaged is formed in the upper surface flange portion 3a of the frame 3. In particular, since a recess 12 is provided on the outside of this through hole 10, these through holes 10
When inserting the hook portion 9 at one end of the coil spring 8 from its tip, insert the other end of the coil spring into the frame 3 as shown by the chain line 8' in FIGS. 5 and 6. Since the spring 8 can be inserted into the upper flange portion 3a with almost no inclination while being extended inward, even if the pad receiver 5 is already supported in the frame 3 by, for example, a jig, the spring 8 can be inserted. frame 3
The locking can be easily performed.

Then, once the spring 8 is attached to the frame 3 of the pad receiving part 5,
When the seat frame 3 is tensioned and suspended between the seat frame 3 and the seat frame 3, the force applied to the through hole 10 due to the spring force is in a direction substantially along the plate surface of the upper surface flange portion 3a inside the frame 3 on the opposite side from the recess 12. Therefore, the locking is performed reliably and firmly.

Further, the coil spring 8 suspended between the seat frame 3 and the pad receiver 5 in this way is attached to the seat frame 3 because the diameter of the through hole 10 is approximately twice the wire diameter of the coil spring 8. On the other hand, it is securely locked and fixed in place, and even if strong vibrations are applied to the entire seat, it will not shift or make any abnormal noise, providing a stable and comfortable seating feeling.

Furthermore, when inserting the hook portion 9 of the spring 8 into the through hole 10, the tip of the hook portion 9 can be guided toward the through hole 10 along the recess 12, so that it can be inserted very smoothly. There are benefits that can be made to that locking operation.

Further, since the recess 12 is formed, the hook portion 9 of the coil spring 8 is inserted into the recess and is inserted and locked into the through hole 10 while being located inside the seat frame 3, so that the coil spring 8 is It does not protrude significantly from the upper surface of the seat frame, so there is no risk of giving the seated person a feeling of being a foreign body.

There is also the advantage that the recesses 12 function as so-called reinforcing ribs on the frame sides of the frame 3, thereby increasing the mechanical strength of the frame.

As described above, according to the configuration of the present invention, it is easy to attach the coil spring 8 for elastically stretching the pad receiver 5 to the seat frame 3, so that the workability of assembling and manufacturing the seat can be improved. In turn, it is possible to reduce costs.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a part of a conventional vehicle seat, Fig. 2 is a perspective view of its pad holder, Fig. 3 is a perspective view of its essential parts, and Fig. 4 is a vehicle according to the present invention. FIG. 5 is a perspective view of the main part thereof, and FIG. 6 is a sectional view of the same main part. 1 is a seat cushion, 2 is a gear pack, 3 is a seat frame, 4 is a seat pad, 5 is a pad receiver, 6 is its frame, 8 is a coil spring, 9 and 11 are hooks at both ends, 10 is a through hole , 12 are depressions.

Claims (1)

[Scope of utility model registration request] In a seat for a vehicle, etc., in which a pad receiver is arranged in a seat frame, and a coil spring is suspended between the frame of the pad receiver and the seat frame,
A through hole into which a hook provided at the end of the coil spring is inserted is formed in the seat frame with a diameter approximately twice the wire diameter of the coil spring, and the end edge of the through hole is A seat for a vehicle or the like, wherein a recess is provided in the shoulder portion of the seat frame, extending over the flange portion and the side wall, slopes low toward the outer circumferential surface, and opens in a shape that widens toward the end.