JPH01214310A - Spring construction for vehicle seat and the like - Google Patents

Abstract

PURPOSE:To prevent noise from being generated and to make it possible to lower a sitting position, by a method wherein a window section which is larger than a size of a framework for a skeleton frame, is made under its framework, and coil springs elastically move up and down with its framework part within the window section. CONSTITUTION:A window section (20) where is larger than the size of a framework (7), is made under the framework part (7) of a bottom plate (19) for a skeleton frame (2). When seated (1) the seat and a spring object (3) is lowered by weight, the framework part (7) of back end of the spring object (3) moves up and down within the window section (20) of the bottom plate (19) for the skeleton frame (2) and, at the same time, coil springs (23) for mounting the framework part (7) also move up and down within the window section (20) of the bottom plate (19) for the skeleton frame (2). Vertical motion is, therefore, worked smoothly, excellent cushion effect is obtained, and no noise is generated because both the framework (7) and the coil springs (23) are not contacted with the bottom plate (19). Moreover, since both the framework section (7) and the coil springs (23) are mounted on the lower part, relatively, to the skeleton frame, it is possible to make the skeleton frame thin and to take a low sitting position.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a spring structure for a vehicle seat or the like.

(Prior Art) Japanese Patent Application No. 141178/1983 filed by the applicant states:
Zigzag springs C running in the front and back direction are arranged in parallel at a predetermined interval in the left and right direction in a substantially rectangular skeleton frame B provided in the seat sea) A, and at the rear of the spring group are a front frame Φ and a rear frame.
The left frame φ A square frame line consisting of a wooden frame is overlapped and fixed, and a spring body E consisting of the zigzag spring C and the frame line frame is formed.
A cushioning material F is provided on the upper surface, and the outer peripheral surface of the cushioning material F is covered with a skin G. A window hole is formed below the frame line of the skeleton frame B, and a window hole is formed below the frame line of the skeleton frame B.
is fixed to the skeletal frame B in a state in which the frame fflD portion is elastically lifted up, and the frame line portion is attached so as to be pulled down by a coil spring H that is engaged with the periphery I of the skeletal frame B. is proposed.

(Problems to be Solved by the Invention) In the prior application, the frame line portion is pulled down by a coil spring H that is locked to the peripheral edge of the skeleton frame B, so that the load is not applied to the seat A. When this happens, there is a problem that the inner end portion of the coil spring H comes into contact with the inner surface of the skeleton frame B as shown in FIG. 10, and that abnormal noise may be generated at that time.

Therefore, the present application improves the mounting structure of the coil spring H,
This solves the above problem.

(Means for Solving the Problem) Therefore, the present invention includes zigzag springs 6 arranged in the front-back direction in parallel at a predetermined interval in the left-right direction on the inside of the substantially rectangular skeleton frame 2 provided in the seat 1. , a rectangular frame line 7 consisting of a front frame 8, a rear frame 9, a left frame 10 and a right frame 11 is superimposed and fixed to the rear of the group of springs 6, and a spring consisting of the zigzag springs 6 and the frame line 7 is fixed. In the case where a cushion material 4 is provided on the upper surface of the body 3 and the outer peripheral surface of the cushion material 4 is covered with a skin 5, the frame line 7 of the skeleton frame 2
A window hole 4 larger than the frame line 7 is formed below the frame line 7, and the spring body 3 is fixed to the skeleton frame 2 in such a manner that the frame line 7 portion is elastically lifted, and the spring body 3 is fixed to the skeleton frame 2 so that the frame line 7 portion Lock one end of the coil spring N to the left and right side parts of the coil spring N.
The other end is locked to the frame line 7, and the coil spring n
This is a spring structure for a vehicle seat or the like in which the window hole pronation is elastically moved up and down together with the frame line 7 portion.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is a seat for a vehicle, and a frame frame 2 has a spring body 3.
is attached, a cushioning material 4 is placed on the upper surface of the spring body 3, and the outer peripheral surface of the cushioning material 4 is covered with a skin 5.

As shown in FIG. 3, the spring body 3 has a plurality of longitudinally long zigzag springs 6 arranged side by side on the left and right sides at a predetermined interval, and a substantially rectangular frame line 7 at the rear of the zigzag springs 6. Polymerize (Fig. 1, Fig. 4).

The frame line 7 is formed by bending steel wire to form a front frame 8, a rear frame 9, a left frame 10, and a wooden frame 11 into a substantially rectangular shape.

At both left and right ends of the front frame 8, locking portions and hills are formed by bending the front frame 8 inward in a V-shape. The ends of the locking part 12.12 are connected to the left and right frames 10.11 by connecting parts 13.13 parallel to the front and rear frames 8.9.

The locking part 12 and the connecting part 13.13 are generally N-shaped.

Similarly, locking portions 14.14 are formed at both left and right ends of the rear frame 9 by bending the rear frame 9 inward in a V-shape. Locking part 14
．． The end of 14 is a connection part 15.1 parallel to the front and rear frames 8.9.
5, it is connected to the left and right frames 10.11. Locking part 14
and the connecting portion 15.15 are of N type as a whole.

The torque bar portion 16 of the zigzag spring 6 and the connecting portion 15.15 of the frame line 7 are overlapped and locked to each other, and similarly the connecting portion 15.15 of the torque bar portion 16 of the zigzag spring 6 and the frame line 7 is
The hills overlap and lock together. Then, the locking portion 12.
12, 14, 14 will be located in the center of each inner loop portion 17 of the zigzag spring 6.

A bent portion 18.18 is formed, and the overlapping portion of the bent portion 18.18 and the zigzag spring 6 is fixed with a stopper.

Therefore, a window opening larger than the frame line 7 is formed below the frame line 7 of the bottom plate 19 of the skeleton frame 2, and mounting portions n are provided on the left and right sides of the inner peripheral edge of the window opening. form. The upper surface of the attachment part η is the outer peripheral edge 2 of the skeleton frame 2.
lower than the top of 1.

The zigzag spring 6 is attached with its front end to the skeleton frame 2 so that the rear end of the spring body 3 is located above the outer peripheral edge 21 of the skeleton frame 2 (FIG. 4), and then The rear end of the spring body 3 is locked by the coil screw 7 against the upwardly moving spring elasticity so that the frame line 7 is at the upper surface position of the mounting portion η (FIG. 6).

The coil spring n locks one end to the upper surface of the mounting portion η,
The other end is locked to each locking member 14 of the frame line 7.

(effect) Next, we will discuss the effect.

When the user is seated on the seat seat 1 and the spring body 3 is lowered by a load, the frame line 7 portion at the rear end of the spring body 3 moves up and down in the window hole pronation of the bottom plate 19 of the skeleton frame 2. Also, frame line 7
Similarly, the coil spring n for fixing the part moves up and down in the window hole pronation of the bottom plate 19 of the skeleton frame 2.

In the above case, since both the frame line 7 and the coil spring n move up and down in the pronation of the window hole, the up and down movement is smooth and the cushioning effect is extremely good, and
Since the frame line 7 portion and the coil spring n do not come into contact with the bottom plate 19, no abnormal noise is generated.Also, since both the frame line 7 portion and the coil spring n are mounted at a relatively low position with respect to the skeleton frame, The frame itself may be formed shallowly, and the seating position can be lowered.

(Effects) The present invention provides zigzag springs 6 in the front-rear direction in parallel at a predetermined interval in the left-right direction on the inside of the substantially rectangular skeleton frame 2 provided in the seat 1, and the rear part of the group of springs 6. A rectangular frame line 7 consisting of a front frame 8, a rear frame 9, a Hanayo 1011, and a right frame 11 is superimposed and fixed, and a cushion material 4 is placed on the upper surface of the spring body 3 consisting of the zigzag spring 6 and the frame line 7. in which the outer peripheral surface of the cushion material 4 is covered with a skin 5, a window hole larger than the frame line 7 is formed below the frame line 7 of the skeleton frame 2, and the spring body 3 is The frame line 7 portion is fixed to the skeleton frame 2 in a resiliently lifting state, one end of the coil spring B is locked to the left and right side portions of the peripheral edge of the window opening, and the other end of the coil spring N is fixed to the frame Because the spring structure of the vehicle seat or the like is configured so that the coil spring n is fixed to the wire 7 and elastically moves up and down the pronation of the window hole together with the frame line 7. Both the coil spring and the coil spring move up and down in the pronation of the window hole, so the cushioning effect is good.

■Both the frame line 7 and the coil spring n have 8 window holes 2
Since it moves up and down within 0, the above frame &! 7 and the coil spring n are not attached to the bottom plate 19, so no abnormal noise is generated.

■Since the frame line 7 and the coil spring n both move up and down within the window hole, the frame line 7 and the coil spring n can be installed at a low position relative to the frame, so the frame itself can be formed shallowly. In addition, the seating position can be lowered.

This effect is achieved.

[Brief explanation of the drawing]

Figure 1 is a plan view of the skeleton frame, Figure 2 is a perspective view of the skeleton frame, Figure 3 is a perspective view of the spring body in its assembled state, Figures 4 and 5 are perspective views of the spring body in its attached state, FIG. 6 is a longitudinal sectional front view, FIG. 7 is a usage state diagram, and FIGS. 8 to 1θ are prior application drawings. Explanation of symbols

Claims (1)

[Claims] Zigzag springs 6 in the front-rear direction are arranged in parallel at predetermined intervals in the left-right direction on the inside of a substantially rectangular skeleton frame 2 provided in the seat 1, and a front frame 8 is provided at the rear of the group of springs 6.
- A rectangular frame line 7 consisting of the rear frame 9, left frame 10, and right frame 11 is overlapped and fixed, and a cushioning material 4 is provided on the upper surface of the spring body 3 consisting of the zigzag spring 6 and the frame line 7. In the case where the outer circumferential surface of the cushioning material 4 is covered with a skin 5, a window opening larger than the frame line 7 is formed below the frame line 7 of the skeleton frame 2, and the spring body 3 is formed on the frame line 7. The skeletal frame 2 is in a state where the parts are lifted elastically.
, one end of the coil spring 23 is locked to the left and right side portions of the periphery of the window hole 20, and the other end of the coil spring 23 is locked to the frame line 7, so that the coil spring 23 is fixed to the frame line 7. A spring structure for a vehicle seat or the like configured to elastically move up and down within the window hole 20 together with the rest.