JPH066086U - Body support device for automobile seats - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure that the seated person's body can be held and to reduce fatigue of the seated person. [Structure] A pivot 17 is fixed to a seat frame in a horizontal axis shape, and a pair of support arms 18 are pivotally attached to the pivot 17. A support pad 19 is provided at the tip of the support arm 18, and is provided between a non-use position located above the seat back 13 in accordance with the vertical turning of the support arm 18 and a use position supporting a seated person from both left and right sides. Displaceable. The support arm 18 is fixed to the seat back 13 with a binding cloth using so-called magic tape (registered trademark).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a body support device for supporting the body of a person seated in a vehicle seat.

[0002]

[Prior art]

 For example, the rear seat of a typical passenger car has a shape as shown in FIG. 8 and is designed to be more suitable for two passengers even if the lateral width of the entire seat is sufficient for three. . That is, when viewed from the rear seat as a whole, two main seating points 1 and 2 are set on the right and left sides, and the left and right sides of each seating point 1 and 2 are raised to prevent the seated person from rocking left and right. 1a and 2a.

[0003]

[Problems to be solved by the device]

 However, with the above-mentioned configuration, when a person sits in the two main seating locations 1 and 2 on the left and right, they can sit comfortably, but when three persons are seated or they are going to sit only in the center of the seat. Has the drawback of not being able to adequately hold a person sitting in the center. As shown in Fig. 9, a seated person in the center does not have a hold part that supports the body of the seated person from the left and right, so the seated person tends to wander when the vehicle turns or rolls. I am easily tired both physically and physically.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a body supporting device for a vehicle seat that can reliably hold the body of a seated person on the seat and reduce fatigue. is there.

[0005]

[Means for Solving the Problems]

 The body supporting apparatus of the present invention has a horizontal axis fixed to a seat frame of a seat, and rotatably attached base ends of a pair of support arms to the left and right sides of a seated person. It is not possible to swivel vertically on both sides.In addition, there is an unused position at the tip of each support arm located above the seat back according to the vertical swing of the support arm, and a usage position that supports a seated person from both left and right sides. It is characterized by the configuration in which a support pad that can be displaced between is provided.

[0006]

[Action]

 Now, assuming that the support pad is in the non-use position, when trying to support the body by sitting on the seat, for example, the support pad is grasped and the support arm is swung downward. If both support arms are pivoted downwards, both support pads will be located on the left and right sides of the occupant to the use position that supports the occupant from both sides. Therefore, even if a lateral force is applied to the seated person when the vehicle turns or rolls, the seated person's body can be securely held and the seated person can continue to sit stably.

Further, when the support pad is not required, if both support arms are turned upward, the support pad will reach an unused position above the seat back and will not be an obstacle.

[0008]

[Effect of device]

 As described above, according to the body supporting device of the present invention, the seated person's body can be securely held, so that fatigue can be reduced and, when it is unnecessary, it is not disturbed. It has a practically excellent effect that it can be easily retracted.

[0009]

【Example】

 An embodiment in which the present invention is applied to a rear seat of a passenger car will be described below with reference to FIGS. 1 to 7.

FIG. 1 shows an overall view of the rear seat 11. The width of the seat 11 is such that it can accommodate three people, and the seat cushion 13 has a general structure in which a seat back 13 is provided at a rear portion thereof. Left and right seating portions 14 and 15 are set side by side on the left and right, and slightly raised hold portions 14a and 15a are formed on both sides of the left and right seating portions 14 and 15, respectively. Since the hold portions 14a and 15a are located on the left and right sides of the body of the person sitting on the left and right seating portions 14 and 15, the body is stably held so as not to roll. A central seating portion 16 is formed between the seating portions 14 and 15. This is not as deeply recessed as the two seat portions 14 and 15, and has a protrusion dimension almost equal to that of the hold portions 14a and 15a.

Although not shown, a seat frame is provided inside the seat cushion 12 and the seat back 13 in the same manner as the known structure, and this is fixed to the floor of the automobile to receive a load. . Then, as shown in FIG. 1, a pivot 17 is welded and fixed in the form of a horizontal shaft to a portion of the seat frame located approximately in the middle of the seat back 13 in the vertical direction. Further, two supporting arms 18 are rotatably attached to the pivot 17, and can be vertically swung on both left and right sides of the central seating portion 16, and a support pad 19 is provided at the tip thereof. Has been installed.

The detailed structures of the support arm 18 and the support pad 19 are shown in FIGS. 2 and 3. As described above, the support arm 18 and the support pad 19 are provided as a pair on the left and right, but both have the same configuration, so only one will be described. As shown in FIG. 2, a sleeve 20 is rotatably fitted to the pivot shaft 17, and the base end portion of the telescopic rod 21 is welded and fixed to the sleeve 20. The expandable rod 21 has a well-known configuration in which, for example, three hollow pipes having different diameters are stepwise fitted to each other so that they can be expanded and contracted. A joint portion 21a is provided at the tip of the telescopic rod 21, an extension rod 22 is rotatably connected thereto via a pin 23, and the support arms 18 are constituted by both rods 21 and 22. Therefore, as for the support arm 18, the extension rod 22 portion is extendable and retractable, and the extension rod 22 portion on the distal end side is rotatable with respect to the extension rod 21.

At the tip of the extension rod 22, a connecting rod 24 is welded and fixed so as to form a T shape as shown in FIG. 3, and a holder pipe 25 is fitted to the outside of the connecting rod 24. The holder pipe 25 has an inner diameter slightly larger than an outer diameter of the connecting rod 24, and is freely rotatable with respect to the connecting rod 24. Then, a screw hole 25a is formed in the upper portion of the holder pipe 25, and the holder bolt 25 is fixed to the connecting rod 24 by tightening the adjusting bolt 26 screwed into the holder pipe 25 and pressing the tip thereof against the connecting rod 24. Thus, the rotation can be prevented.

On the other hand, the support pad 19 is divided into right and left halves as shown in FIG. 2, and includes a pad block 27 for cushioning and a cover cloth 28 covering the pad block 27. A storage recess 27a is formed inside the pad block 27 to store the holder pipe 25 located at the tip of the support arm 18. The tip of the support arm 18 is wrapped around the holder pipe 25 from both sides. Is attached to. In this mounted state, the head of the adjusting bolt 26 projects from the upper portion of the support pad 19 and can be operated from the outside.

A fixing plate 29 made of a steel plate is integrated with the extension rod 22 of the support arm 18 by welding as shown in FIG. 3, and both sides of the fixing plate 29 are formed by so-called magic tape. The binding cloth 30 is attached. On the other hand, as shown in FIG. 4, the seat back 13 is formed with vertical cuts on both the left and right sides of the central seating portion 16 at the boundaries with the left and right seating portions 14, 15. A binding cloth 31 that engages with the binding cloth 30 of the fixed plate 29 is attached to the inside. As shown in FIG. 5, the binding cloth 31 is attached to the entire seat back 13 including the upper portion thereof.

Now, according to the present embodiment having the above-mentioned configuration, when a person sits on the central seating portion 16, the following may be done. First, the support pad 19 in the unused position shown in FIG. 1 is strongly pulled upward. Then, as the telescopic rod 21 of the support arm 18 extends, the binding cloth 30 attached to the fixing plate 29 of the supporting arm 18 is peeled off from the binding cloth 31 attached to the seat back 13. As a result, the support arm 18 can freely pivot about the pivot 17, so that the support pad 19 is pushed down to, for example, a portion positioned beside a seated person to pivot the support arm 18 downward. Then, if the support pad 19 is pushed into the seat back 13 at that position, the expansion rod 21 contracts, so that the binding cloth 30 of the fixing plate 29 is fixed to the binding cloth 31 of the seat back 13. The support arm 18 is fixed at the position (see the solid line in FIG. 6). After that, if the other support arms 18 are operated in the same manner and the support pads 19 are lowered and fixed, both support pads 19 are located on both sides of the seated person sitting on the central seating portion 16, as shown in FIG. It is possible to hold the body firmly from both sides. As a result, even if a lateral force acts on the seated person when the vehicle turns or rolls, the seated person's body can be prevented from wobbling, and the seated person can continue to sit stably, mentally or Physical fatigue can be significantly reduced.

Further, in order to fit the body shape of the seated person, the adjustment bolt 26 may be loosened and the support pad 19 may be rotated around the connecting rod 24. After the adjustment, the adjustment bolt 26 may be tightened again to support pad. 19 can be fixed.

In the above embodiment, the supporting arms 18 are fixed by the binding cloths 30 and 31 using so-called magic tape, but this is not always necessary. For example, the pivot 17 and the sleeve 20 An appropriate friction member may be interposed between the support arm 18 and the support arm 18 to hold the pivot position. Further, the structure for making the support arm 18 expandable and contractible is not limited to the expandable rod 21, and may be a structure using a pantograph mechanism. In addition, the configuration in which the support pad 19 is rotatable with respect to the connecting rod 24 of the support arm 18 may be variously modified within a range not departing from the gist, such as being provided as needed. it can.

[Brief description of drawings]

FIG. 1 is a perspective view of a rear seat showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a support arm and a support pad portion.

FIG. 3 is an enlarged perspective view showing a tip portion of a support arm.

FIG. 4 is an exploded perspective view of a rear seat.

FIG. 5 is an exploded perspective view showing a mounting position of the binding cloth.

FIG. 6 is a schematic side view of a rear seat.

FIG. 7 is a schematic plan view showing a state in which a seated person is held.

FIG. 8 is a perspective view showing a conventional seat.

FIG. 9 is a schematic plan view showing a state of being seated on a conventional seat.

[Explanation of symbols]

 11 ... Seat 12 ... Seat cushion 13 ... Seat back 17 ... Axis 18 ... Support mark 19 ... Support pad 26 ... Adjustment bolt

Claims (1)

[Scope of utility model registration request] 1. A vehicle seat which is positioned on both left and right sides of a seated person to support a seated person's body, wherein a horizontal axis is fixed to a seat frame of the seat, and a base end portion thereof is A pair of support arms rotatably attached to the pivot shaft, which are located on both left and right sides of a person sitting on the seat and can pivot in the vertical direction; and a pair of support arms provided at the tips of the support arms depending on the vertical pivot of the support arms. A body supporting device for an automobile seat, comprising: a support pad that is displaceable between a non-use position located above a seat back and a use position that supports a seated person from both left and right sides.