JP7460146B2 - lower back mat - Google Patents

Description

The present invention relates to a lumbar mat placed on a person's back and below their waist.

Until now, a back and lumbar pad has been created that allows the user to assume a comfortable sleeping position when tossing and turning, and is intended to alleviate and relieve stiff shoulders and back pain when used in conjunction with a pillow. JP Patent Publication No. 2003-61786 (Patent Document 1) discloses a back and lumbar pad with a raised portion on the top surface of a urethane plate.

Japanese Patent Application Publication No. 2003-61786

However, in the back and waist pad disclosed in Patent Document 1, a raised portion is provided on the upper surface of the urethane plate, and the raised portion is brought into direct contact with a person's back or waist. For this reason, the stimulation to the human body becomes too strong, which may even cause pain in the lower back and back.

The present invention has been made in view of the above points, and by arranging the convex portion on the back side of the back plate part, the back plate part has a smooth curve and can act gently on the human body. The purpose is to provide

The lumbar mat of the present invention is
A back panel made of foamed synthetic resin that is placed on the person's back and under the waist;
A vertical bar portion made of a foamed synthetic resin and arranged in a convex shape at a lateral end portion of the rear surface of the back plate portion;
A horizontal bar portion made of foamed synthetic resin, arranged in a convex shape on the back surface of the back plate portion and in the vertical middle portion, and extending so as to connect the vertical bar portions to each other;
The present invention is characterized by comprising:

The lumbar mat of the present invention has flexibility because the back panel is made of foamed synthetic resin. In addition, vertical and horizontal bars are arranged in a convex shape on the reverse side of the back panel. As a result, when the lumbar mat is placed over a person's back and waist, the back panel bends in a smooth curve. This prevents partial strong contact with the person's back or waist.

A preferred example of the lumbar support mat of the present invention is:
A convex sub-vertical beam portion is further provided on the bottom surface of the vertical beam portion,
A convex sub-horizontal section is further provided on the bottom surface of the horizontal section.

In a preferred embodiment of the lumbar mat of the present invention, the sub-vertical and sub-horizontal rails are provided, so that when the lumbar mat is placed on a futon or mattress and a person lies on the lumbar mat, the sub-vertical and sub-horizontal rails first sink into the futon, and then the vertical and horizontal rails come into contact with the surface of the futon. This further softens the impact between the lumbar mat and the person.

A preferred example of the lumbar support mat of the present invention is:
The corners between the back surface of the back plate portion and the vertical rail portions and the corners between the back surface of the back plate portion and the horizontal rail portions are rounded or have fillets.

According to a preferred example of the lower back mat of the present invention, the corners between the back surface of the back plate portion and the vertical and horizontal beam portions are rounded or provided with fillets, so that the back plate portion is There is no sudden bending at the border between the vertical and horizontal beams. As a result, when a person lies on the back plate, the curve of the back plate becomes smoother.

A preferred example of the lumbar support mat of the present invention is:
The foamed synthetic resin is polystyrene foam.

According to a preferred example of the lumbar mat of the present invention, the lumbar mat is made of styrofoam, so the material is easily available and has appropriate flexibility.

As described above, according to the lower back mat of the present invention, by arranging the convex portion on the back side of the back plate part, the back plate part can be made to have a smooth curve and act gently on the human body.

1 is a perspective view of a lumbar mat according to one embodiment of the present invention; FIG. 2 is a perspective view showing the lower back mat of FIG. 1 turned over; 2 is a cross-sectional view taken along line AA in FIG. 1. FIG. 3 is a diagram illustrating how the lower back mat is used. 13 is a diagram illustrating a state in which the back plate portion is bent. FIG.

EMBODIMENT OF THE INVENTION Hereinafter, embodiments of the lower back mat 1 of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 to 3, the lower back mat 1 of this embodiment includes a back plate part 10, a vertical bar part 20, and a horizontal bar part 22. Note that FIG. 3(A) is a sectional view taken along line AA in FIG. 1, and FIG. 3(B) is a diagram illustrating a form in which fillets are provided at the corners of the back plate portion and the horizontal beam portion.

The back plate part 10 is placed on a person's back and below the waist, and is made of foamed synthetic resin. As this foamed synthetic resin, a flexible material such as foamed polyethylene or foamed polystyrene is used. In this embodiment, foamed polystyrene is used (the same applies to the vertical bar portion 20 and the horizontal bar portion 22).

The vertical bars 20 are arranged in a convex shape along the vertical direction at both the left and right ends of the rear surface 12 of the back panel 10, and are made of foamed synthetic resin. In addition, a convex auxiliary vertical bar 21 is further provided on the bottom surface of the vertical bar 20.

The horizontal bar portion 22 is disposed in a convex manner on the back surface 12 of the back plate portion 10 and at the middle portion in the vertical direction, extends so as to connect the vertical bar portions 20, and is made of foamed synthetic resin. Further, a convex sub-horizontal section 23 is further provided on the bottom surface of the horizontal section 22. Note that the sub-vertical bar portion 21 and the sub-horizontal bar portion 23 do not need to be provided over the entire length of the vertical bar portion 20 and the horizontal bar portion 22, and may be provided over a portion thereof. In this embodiment, the sub-vertical bar portion 21 is provided along the length of the vertical bar portion 20 except for the position where the horizontal bar portion 22 is located. Further, a sub-horizontal section 23 is also provided except for the central portion of the horizontal section 22.

As shown in Fig. 3(A), the corners between the back surface 12 of the back plate portion 10 and the vertical bar portion 20, and the corners between the back surface 12 of the back plate portion 10 and the horizontal bar portion 22 are rounded with a rounded cross section 30. Also, as shown in Fig. 3(B), instead of the rounded cross section 30, a fillet 31 can be provided.

The dimensions of the lumbar mat 1 are, for example, 30 to 50 cm in the vertical direction, 40 to 60 cm in the horizontal direction, and 1 to 3 cm in the height direction for the back panel 10 alone, with a total of 4 to 7 cm including the vertical and horizontal sections 20, 22, and the sub-vertical and sub-horizontal sections 21 and 23. The width of the vertical and horizontal sections 20 and 22 is preferably 2 to 3 cm, and the height and width of the sub-vertical and sub-horizontal sections 21 and 23 are preferably about 0.5 to 1.5 cm.

Next, a method of using the lumbar mat 1 of this embodiment will be described with reference to Figures 4 and 5. Figure 4 is a diagram illustrating the state in which a person is lying on the lumbar mat 1, Figure 5(A) is a diagram illustrating the state in which the back plate portion 10 is bent from the state shown in Figure 3(A), and Figure 5(B) is a diagram of the bent state of the back plate portion 10 as viewed from the arrow B in Figure 1.

First, the lumbar mat 1 is placed on top of a futon 40 or mattress with the surface 11 (see Figure 1) of the back panel 10 facing up. At this time, the longitudinal direction of the vertical rails 20 faces in the direction from the person's head to their feet. Next, the person lies down on the lumbar mat 1 with the horizontal rails 22 abutting against the depression in the S-shaped curve of the person's spine around the lumbar vertebrae.

Then, first, the subvertical bar portion 21 and the subhorizontal bar portion 23 sink into the mattress 40, and then the vertical bar portion 20 and the horizontal bar portion 22 sink into the mattress 40 at a place where a large load is applied. Then, a portion of the back plate portion 10 where the vertical bar portion 20 and the horizontal bar portion 22 are not present on the back surface 12 is bent, and the back plate portion 10 is bent when viewed in a vertical cross-sectional view as shown in FIG. 5(A). It forms a gentle mountain shape.

As shown in FIG. 5(B), the back panel 10 bends downward near the center of the vertical end, forming a gentle concave shape. This allows a person's back and hips to fit into the concave portion, providing lateral support for the back and hips.

Moreover, when a person sleeps on the back plate part 10 as described above, the corner between the back surface 12 of the back plate part 10 and the vertical bar part 20 and the corner between the back surface 12 of the back plate part 10 and the horizontal bar part 22 Since the back plate portion 10 is provided with a round treatment 30 or a fillet 31, the back plate portion 10 is bent so as to draw a gentle curve. Further, since the vertical bar portion 20 and the horizontal bar portion 22 are also made of foamed synthetic resin, they flex to some extent under weight. At this time, since the subvertical bar portion 21 and the subhorizontal bar portion 23 are not provided near the center, the vertical bar portion 20 and the horizontal bar portion 22 tend to bend slightly near the center. As a result, when a person lies on the lower back mat 1, the curve of the back plate part 10 becomes smoother, and the back plate part 10 has an appropriate repulsive force against the person.

As explained above, the lumbar mat 1 of this embodiment is provided with a flexible back panel 10, vertical bars 20, and horizontal bars 22, so that when a person lies on the lumbar mat 1, the back panel 10 forms a gentle curve. This allows the back panel 10 to curve in accordance with the S-shaped curve of the human spine, which is effective in improving and preventing lower back pain.

Further, by providing the sub-vertical bar part 21 and the sub-horizontal bar part 23, when a person sleeps on the lower back mat, the sub-vertical bar part 21 and the sub-horizontal bar part 23 are placed on the mattress 40 first. Since the user sinks in, it is possible to reduce the discomfort caused by applying the lower back mat 1 from the back to the lower back.

In addition, at the vertical ends of the back panel 10, the back panel bends concavely and the horizontal ends become higher, so that the person's back and waist can be supported laterally and the lumbar mat 1 can be prevented from shifting while the person is sleeping. In addition, since the lumbar mat 1 can be simply placed on the mattress 40 or the like, the position of the lumbar mat 1 can be finely adjusted to suit each person's comfort.

Note that the waist mat of the present embodiment described above is an example of the invention, and its configuration can be changed as appropriate without departing from the spirit of the invention. For example, the entire lumbar mat may be covered with fabric or thin soft plastic.

1. Lower back mat,
10...Back plate part, 11...Front surface, 12...Back surface,
20... Vertical bar part, 21... Sub-vertical bar part, 22... Horizontal bar part, 23... Sub-horizontal bar part,
30...Round processing, 31...Fillet,
40...mattress,

Claims (4)

A backboard part made of foamed synthetic resin and placed from the back of the person under the waist,
a vertical beam part made of foamed synthetic resin and arranged in a convex shape at a lateral end of the back surface of the back plate part;
a horizontal bar part made of foamed synthetic resin, arranged in a convex shape on the back surface of the back plate part and at the middle part in the vertical direction, and passed so as to connect the vertical bar parts;
A lumbar mat characterized by comprising: A convex sub-vertical beam portion is further provided on the bottom surface of the vertical beam portion,
2. The lumbar mat according to claim 1, further comprising a convex auxiliary horizontal bar portion on the bottom surface of said horizontal bar portion. According to claim 1 or 2, a corner between the back surface of the back plate portion and the vertical bar portion and a corner between the back surface of the back plate portion and the horizontal bar portion are rounded or provided with fillets. Mat for the lower back. The lumbar mat according to any one of claims 1 to 3, wherein the foamed synthetic resin is foamed polystyrene.

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