JPS5963235A - Seat for vehicle - Google Patents

Abstract

PURPOSE:To adjust cushion effect by permitting the engagement or disengagement of each engaging edge of suspension members through stopper members. CONSTITUTION:Each spring supporting bracket 2 is integrally mounted to a seat frame 1, one end of each suspension spring 3 is anchored to the spring supporting bracket 2 and the other end thereof is resiliently supported by a resilient member 4. Hinge brackets 6 are fixed to the spring supporting bracket 2, one end of each planar members 7 is pivotally attached to the hinge bracket 6, and the other end thereof is anchored to a frame 5 of the resilient member 4. Projecting pieces 8, 9 are provided on the undersurface of the planar member 7 and on the bottom of the frame, each stopper rod 10 is rotatably supported by the projecting pieces 9, link pieces 11 are secured, link pieces 12 are pivotally attached to the projecting pieces 8, and the link pieces 11, 12 are connected, so that the stopper members 15 in the form of a link are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a vehicular seat having a novel structure in which the cushioning performance can be adjusted and changed according to differences in body shape, weight, etc. of occupants.

[Background technology of the invention]

For seats installed in automobiles, etc., in order to reduce passenger fatigue, it is extremely important to optimally select cushioning performance that includes the seat's constant characteristics, load-deflection characteristics, body pressure distribution, etc. is important.

Theoretically, this cushioning performance can be determined to be optimal considering the occupant's body shape, weight, and other factors, but in reality, it is designed to fit a standard body shape, so in practice It is not necessarily possible to provide ideal cushioning performance to all occupants with moderately different body shapes and weights. As a result, for some people, the seat feels hard and causes pain, such as body aches, while for others, the cushion is too soft, causing fatigue.
There was an inconvenience.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and aims to provide a seat in which the cushioning performance of the seat can be adjusted to either soft or hard according to the individual's preference, depending on individual differences in body shape, weight, etc. It is something.

The adjustment and modification of the cushioning performance according to the present invention can be carried out in either or both of the sitting part and the back part of the seat.

[Summary of the invention]

In the seat of the present invention, one end of a group of suspension springs is attached to each opposite side of a rectangular seat frame, and a seat portion or a backrest portion of the seat is provided between each other end of the two spring groups. By suspending and supporting the elastic member to be placed in the center of the seat, the seat has dual elasticity of the elasticity of the central elastic member, which has different characteristics from the suspension spring, and the elasticity of the suspension spring group, and Separately, a rigid suspension structure is provided for the central elastic member, and if necessary, this rigid suspension structure is operated to seal the elasticity of the suspension spring group and only the elasticity of the central elastic member is activated, or the rigid suspension structure is operated as necessary. The function of the structure is released to make use of the dual elasticity.

The rigid suspension structure is disposed between the seat frame and the central elastic member under the suspension spring group or at a location where the suspension spring group is not disposed, and has one end connected to the seat frame. A rigid plate-like member is pivotally supported on the side and the other end is hooked to the side of the central elastic member, and the rigid plate-like member is engaged with the plate-like member or the frame so as to wedge the pivot of the central elastic member. It consists of a removable and rotatable stopper member.

When the pivoting is stopped, the plate-like member serves as a member that rigidly suspends the central elastic member from the frame, and the cushioning performance of the seat is carried only by the central elastic member, so that the seat exhibits a hard-feeling cushioning property.

When the wedging on the plate member is released, the plate member stops or reduces its rigid support to the central elastic member, and the elasticity of the suspension spring group is added to the elasticity of the central elastic member, improving the cushioning properties of the seat. becomes soft.

[Embodiments of the invention]

Several embodiments of the present invention will be described below with reference to the drawings.

Figures 1 to 4 show the first embodiment.
The figure is a plan view, Figure 2 is a front view shown together with the skin material, and Figures 3 and 4 are enlarged views of the end face taken along line A-A in Figure 1, with the rigid suspension structure wedged. (Figure 3) and the released state (Figure 4).

In these figures, the seat of the present invention has a rectangular seat frame 1 with an upright outer periphery, a spring holding bracket 2 is integrated with the seat frame 1, and one end of a plurality of suspension springs 3 is fixed to the seat frame 1. are doing. The other end of the snow ring 3 elastically supports an elastic member 4 disposed at the center of the seat (all nine seats in the first embodiment).

The elastic member 4 shown in the first embodiment is surrounded by a frame 5, to which a large number of linear elastic bodies 16, such as elastic wires or piano wires, are stretched. In addition to this, the central elastic member 4 may have a structure shown as a modification in FIG. 5, for example, or others. In the modification shown in FIG. 5, a large number of S-shaped springs 17 are stretched around the frame 5.

A hinge bracket 6 is fixed to the spring holding bracket 2 below the suspension spring 3. One end of an oblong plate-like member 7 is pivotably hinged to the hinge bracket 6 to form a part of the rigid suspension structure. It consists of The other end of the plate member 7 is hooked to the frame 5 of the central elastic member 40.

A protruding piece 8 is provided on the back surface of the plate-like member 7, and a protruding piece 9 is provided on the bottom of the frame 1, and the protruding piece 9 has a stone/f-operating rod 10 disposed in parallel below the plate-like member 7. It is rotatably inserted and supported. In the example of Fig. 1, this rod 10
are installed along each side of the seat and can be operated independently. Link pieces 11 are fixed to appropriate locations on each rod 10, two locations in the figure, so that they can rotate together with the rod 10.

Another link piece 1 is attached to the protruding piece 8 in front of the plate member 7.
2 are pivotally connected, and the proximal ends of the two link pieces 11 and 12 are connected by a pin 13 to form a link-like stopper member 15. One side edge 12' of the link piece 12 is an engaging edge that engages with the back surface of the plate member 7, which is a rigid suspension member (FIG. 3), and separates (FIG. 4). In addition, 14 in the figure is a handle of the stone operating rod 10.

ζ Then, the pivot plate member 7 and the pivot arm part 15
The rigid suspension structure consisting of the above becomes a rigid support structure for the central elastic member 4 when put in the wedged state as shown in FIG. 3, and becomes a rigid support structure for the central elastic member 4 when put in the released state as shown in FIG.
Demonstrate elasticity.

That is, if the operating rod 10 is turned in one direction (clockwise # in FIG. 3) with the handle 14, one side edge 12' of one link piece 12 forming the stop horn 91 member 15 is rotated.
is firmly engaged with the back surface of the plate-like member 7, and the plate-like member 7 is wedged. At this time, even if a load (arrow) is applied from above the seat, the rigid suspension structures 7 and 15 are functioning, so the elasticity of the suspension spring 3 is suppressed, the frame 5 itself cannot move up and down, and the cushion Almost all of the performance depends solely on the elasticity of the elastic member 4, that is, the elasticity of the wire 16 and the S-shaped sedge ring 17, and the spring constant of the seat becomes high. On the other hand, if the operating rod 10 is rotated counterclockwise to disengage the retaining edge 12' of the link piece 12 from the plate-shaped member 7 as shown in FIG. 4, a rigid suspension structure is created. The body is no longer wedged and the elasticity of the suspension spring 3 is restored, so the frame 5 elastically moves up and down in response to the load from above, and the elasticity of the central elastic member 4 is added to this, so that It exhibits a low Nonone constant, that is, soft cushioning performance.

In the above description, the group of suspension springs 3 and the rigid suspension structures 7, 15 are installed on the same side of the seat in a vertical relationship, but the present invention is not limited to this. For example, in FIG.
They can also be arranged separately along the sides (top and bottom in the figure). In this case, the handle 14 of the operating rod 10 will protrude in the lateral direction of the seat.

Further, the link piece 11.1 constituting the stopper member 15
2 are shown in FIG. 1 as two sets provided on each of the left and right operating rods 10, but more than two sets may be provided if necessary. This also applies to other embodiments of the stopper member shown in FIGS. 6 and 7, which will be described later.

FIG. 6 shows another embodiment of the stone/base member 15, and in the case of the stone base, two link pieces 11m and 1
2 m as a component, but the difference is that one end edge 11' of the lower link piece 11a is held onto the bottom surface of the seat frame 1 to wedge the plate member 7.

FIG. 7 shows yet another embodiment of the stone/base member 15, in which a single camulus is used instead of a link.
The rod 19 is fixed to the operating rod 10, and its end edge 19' is wedged into engagement with the plate member 7.

Although not shown in the drawings, other stopper members can be used, for example, by hinged a stone or arm piece on the bottom of the seat frame, and by pulling an operating rod connected to or inserted through this member forward or backward. It is also possible to have a structure in which the shaft is raised upright and engaged and wedged with the bottom surface of the plate-like member 7. In any case, the stone and arm parts are not limited to those described and illustrated above.

The above description has been made of adjusting and changing the cushioning performance of the seat, especially the sitting part, but it is clear that the present invention can be applied not only to the sitting part but also to the backrest (pack part) of the seat. Such an example is shown in FIG. & indicates a total of 9 parts, and b indicates a backrest part. In FIG. 8, a total of four sets of rigid suspension structures 7 and 15, each of which can be operated independently, are installed on the front and back sides of all nine parts a of the seat, and on the top and bottom sides of the backrest. In this way, in addition to adjusting the spring constant of the seat, the stiffness of the front and rear edges of the seat a and the upper and lower edges of the backrest can be adjusted according to the occupant's body shape, weight, etc. (by changing it independently), it is also effective in adjusting the body pressure distribution. For example, the front edge of all 9 parts a is made hard and the rear edge is made soft, the lower edge of the backrest part is made hard and the upper edge is made soft, or both the front and rear edges of all 9 parts a are made hard,
By making the upper and lower edges of the backrest soft or by making various other combinations, it is possible to select the most appropriate cushioning performance according to the passenger's preference.

As described above, it is very convenient to provide independent cushion performance adjustment mechanisms on each edge of the seat, but the present invention is not limited to this. The cushion performance adjustment mechanism of the left and right operation Rondo 1
Of course, it is also possible to interlock the 0.10 with a single connecting rod so that the left and right sides can be adjusted simultaneously by operating one of the handles 14.

In the illustrated embodiment, a spring retaining bracket 2 is attached to the seat frame 1, but this is for convenience in manufacturing, and it is not possible to attach a hinge bracket 6 directly, separately, or integrally to the frame l. Of course, it may also be used as a pivot point for the plate member 7.

〔Effect of the invention〕

As described in detail above, according to the present invention, the spring constant of the seat can be changed at will according to individual differences in the body shape and weight of the occupant, and the cushioning performance of the seat can be uniformly distributed over the entire surface of the seat. Or, since each part can be adjusted in various ways, passengers can enjoy the optimal cushioning performance according to individual differences and preferences, and they do not have to endure the uniform cushioning of the standard specifications, and the vehicle It has the effect of making the operation more comfortable and easy.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the seat structure according to the present invention, Fig. 2 is a front view showing the seat structure shown in Fig. 1 covered with a skin material, and Fig. 3 is taken along line A-A in Fig. 1. An enlarged view of the end face of the cut part in
Fig. 4 shows a state in which the stone/base member is wedged; Fig. 4 also shows a state in which the stone/base member is released; Fig. 5 is a plan view showing a modified example of the central elastic member; The figure is an enlarged view of the end face of a cut part similar to Fig. 3 showing another embodiment of the stone/thread member, Fig. 7 is a diagram showing still another embodiment of the stone/f1 member, and Fig. 8 is a seated part. FIG. 2 is a cross-sectional side view of a seat in which the present invention is implemented in both the backrest and the backrest. [Main symbols] 1... Seat frame structure 3... Suspension spring 4... Central elastic member 5... Frame 7... Rigid suspension member (plate-like member) 10... Operating rod 11 + '12: 11 a; 12 a...
Link piece 15...Stock horn member 19...Cam plate 11a', 12', 19'-engaging edge Patent applicant Namba Press Kogyo Co., Ltd. #4 Figure Qin 7 Figure

Claims (1)

[Scope of Claims] (1) a seat frame; a suspension spring having one end attached to each opposite side of the seat frame; a central elastic member attached between each other opposite end of the suspension spring; It has a rigid suspension member that is pivoted on one side of the frame and hooked on the other end to the central elastic member, and a retaining edge that wedges the rigid suspension member so that it cannot pivot, and can be rotated between a wedge position and a release position. A seat characterized in that it has a strut horn 91 member that can be bent. (2. The seat described in claim (1), in which the rigid suspension member is composed of a plate-like member disposed below the suspension spring, and one end of the plate-like member is attached to the seat frame. The seat is hinged on the opposing sides and the other end is hooked to the central elastic member. (3) The seat according to claim (1), wherein the rigid suspension member is a suspension spring. consisting of a plate-like member disposed between the seat frame and the central elastic member, in which one end of the plate-like member is hinged to the other side sandwiched between the opposite sides of the seat frame. (4) A seat according to claim (1), in which the strut arm member is attached to the seat frame in parallel with the rigid suspension member. It consists of a link piece whose one end is fixed to a rotatable operating rod placed on the bottom of the frame, and another link piece whose one end is pivotally connected to this and the other end is pivotally connected to the back side of the rigid suspension member. , a seat in which one side edge of the other link piece constitutes a retaining edge that engages with the back surface of the rigid suspension member. (5) The seat according to claim (1). The stone/elbow member is connected to a link piece fixed at one end to a rotatable operating rod disposed on the bottom of the seat frame parallel to the rigid suspension member, with one end pivotally connected to this and the other end fixed to the rigid suspension member. and another link piece pivotally connected to the back surface of the suspension member, and one end edge of the first link piece constitutes a retaining edge that engages with the upper surface of the bottom of the seat frame. (6) A seat according to claim (1), wherein the stone 91 member is fixed at one end to a rotatable operating rod disposed on the bottom of the seat frame parallel to the rigid suspension member. A seat whose edges constitute a retaining edge that engages with the back surface of the rigid suspension member. (7) A seat frame and a suspension sedge ring with one end attached to the opposite side of the seat frame. a central elastic member attached between opposing ends of the suspension spring; a rigid suspension member having one end pivoted to one side of the seat frame and the other end hooked to the central elastic member; A seat characterized by having a stopper member on both or one of the seat portion and the backrest portion, which is provided with a retaining edge that locks the wedge in a non-pivotable manner and can be rotated between a wedge locking position and a release position. .