JP2003125890A - Lumbar support - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lumbar support which has simple structure and can make a support condition adaptable to a body form and taste of a crew member. SOLUTION: This lumbar support includes right and left ribs 11, 11 which are extended in suitable vertical length and projected from prescribed positions of both opening side edges 37, 37 of a window 35 of a back board 34, and a lumbar plate 12 which has right and left groove shape cramps 15, 15 in both ends and is assembled to the back board 34 at the window 35 by slidably fitting the right and left groove shape cramps 15, 15 with the right and left ribs 11, 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to lumbar supports for use in automobile seats.

[0002]

BACKGROUND ART In a lumbar support used for an automobile seat, a lumbar plate is supported by a torsion bar, and the strength of the support is generally adjusted by lever operation according to a passenger's preference. Becomes complicated.

An object of the present invention is to provide a lumbar support that is structurally simple and can adapt the support condition to the occupant's body type and taste.

According to the present invention, the left and right ribs are vertically extended and projected at a predetermined position on both side edges of the opening of the back board window, and the left and right groove-shaped clamps are provided at both ends. , The left and right ribs are slidably engaged with the left and right groove-shaped clamps and attached to the back board at the window, and the both support surfaces of the lumbar plate are selectively included. To enable.

[0005]

DESCRIPTION OF SPECIFIC EXAMPLES In the following, the lumbar support of the present invention will be described based on the specified and illustrated specific examples.
1 to 4 show an embodiment 10 of the lumbar support of the present invention used in a front seat 30 of a recreational beagle, which front seat 30 includes a seat cushion 31, a seat back. 32, and a head restraint and 33, and a seat track (not shown) incorporated into its seat cushion 31 to be mounted back and forth on the floor of the recreational beagle and also for reclining. Device (not shown)
So the seat cushion 31 and the seat back 3
2 is assembled so that the angle can be adjusted. Further, the front seat 30 has a window 36 formed in the back board 34 of the seat back 32 and a cover 36.
Then, the window 35 is closed.

In this lumbar support 10, the left and right ribs 11, 11 are arranged in the window 35 of the back board 34.
At a predetermined position of both opening side edges 37, 37, the right and left groove-shaped clamps 15, 15 are provided at both ends, and the lumbar plate 12 has left and right groove-shaped clamps 15. The left and right groove-shaped clamps 15, 15 are slidably fitted to the ribs 11, 11 and assembled to the back board 34 in the window 35.

The left and right ribs 11, 11 may be L-shaped wires attached to the back board 34 at the windows 35.

The lumbar plate 12 uses each of the plate surfaces 13, 14 as a support surface, as shown in FIG. 3, and from the channel clamps 15, 15 to both support surfaces 13, 14. It is made by changing the thickness of the and, and adds strength to the support of the occupant's waist. Also, the lumbar plate 12 is made into another lumbar plate 20 which can be adapted to fat and thin persons by changing the radii of curvature of their support surfaces 21, 22 as shown in FIG. This alternative lumbar plate 20 may be made with different radii of curvature of its two bearing surfaces 21, 22 as shown in FIG.

Therefore, in the lumbar support 10, when the support surface 13 is used, the lumbar plate 12 has the support surface 13 in the front side, and the ribs 11 and 11 on the left and right of the lumbar plate 12 from the top and the The left and right groove-shaped clamps 15, 15 are slidably fitted together and assembled to the back board 34. Also, when using the support surface 14, the lumbar plate 12 is pulled up and down to be removed from the left and right ribs 11, 11 and inverted to bring the support surface 14 to the front side, and then again upward. The left and right ribs 11, 11 are slidably fitted to the left and right groove-shaped clamps 15, 15 and assembled to the back board 34. As such, the lumbar support 10 can be adapted to the lumbar support depending on the body shape and taste of the occupant, and can be adapted to a fat person and a lean person.

As is apparent from the specific embodiments of the present invention described above with reference to the drawings, those skilled in the art to which the present invention pertains have a general knowledge of the present invention. , The nature of the invention (nat
ure) and essence (substance),
Then, it is easily embodied in another mode that is objectively recognized when they are included. Of course, the content of this invention is
It corresponds to the subject of the invention (be commensura
te with), and is essential for the establishment of the invention.

[0011]

Benefits of the Invention As will be understood from the above, the lumbar support of the present invention has the left and right sides which are vertically extended and protruded at a predetermined position on both side edges of the opening of the window of the backboard. And the left and right groove-shaped clamps at both ends, and the left and right groove-shaped clamps are slidably engaged with the left and right groove-shaped clamps and assembled to the back board at the window. Therefore, with the lumbar support of the present invention, the structure is simplified and the occupant's lumbar support feeling is weakened and it can be adapted to fat and thin people, and the occupant's lumbar support state can be adjusted accordingly. It can be adapted to your body type and taste, and as a result, it is very useful and practical for automobiles, especially wagons and recreational beagle.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a specific example of a lumbar support of the present invention used for a front sheet of a recreational beagle.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a side view showing a lumbar plate.

FIG. 4 is a top view showing a lumbar plate.

FIG. 5 is a top view showing another lumbar plate.

[Explanation of symbols]

11 ribs 12 Lamba plate 13 Plate surface / Support surface 14 Plate surface / support surface 15 Groove type clamp 20 different lumbar plates 21 Support surface 22 Support surface 30 front seats 31 seat cushion 32 seat back 33 Head Restraint 34 back board 35 windows 36 cover 37 Opening side edge

Claims (3)

[Claims] 1. Right and left ribs extending vertically in an appropriate length and protruding at predetermined positions on both opening side edges of the window of the back board, and left and right groove-shaped clamps at both ends,
A lumbar support including a lumbar plate that is slidably fitted to the left and right ribs of the left and right groove-shaped clamps and assembled to the back board at the window. 2. The lumbar plate according to claim 1, wherein the lumbar plate uses each of both sides as a supporting surface, and changes the thickness from the groove clamp to both the supporting surfaces.
support. 3. The lumbar support according to claim 1, wherein the lumbar support uses each of both surfaces as a support surface and changes a radius of curvature of the both support surfaces.