JPH0247205B2 - MATSUTORESUSENTAKUYOSOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a pinerest selection device for selecting a pinerest with a hardness suitable for the weight and physique of a user.

[Technical background of the invention and its problems]

Bed devices are generally constructed by placing a mattress on a bed frame, but the performance of this bed device largely depends on whether the hardness of the mattress matches the weight and physique of the person using it. Depends on it.

In other words, when we look at the sleeping state of humans, we find that sleep is deepest when the spine is stretched straight to some extent in a supine position, and when the body is supine on a pinerest, the lumbar region is parallel to the tangent between the chest and the back of the buttocks. It is comfortable to sleep at a certain height of 2 to 3 cm. On the other hand, it has been recognized from physiology and ergonomics that people suffering from pine stress, in which the chest and buttocks are extremely depressed and the lower back is pushed up, can experience early pain and have trouble sleeping. Therefore, in order to reduce the depression between the chest and buttocks, a hard pine tress is better. However, if the pinerest is too hard, although the chest and buttocks do not fall into a small area, the human body will be supported only by these parts, and pressure will be concentrated on the chest and buttocks, making it uncomfortable to sleep.

By the way, in order to choose a pine tress that is comfortable to sleep on, even if you simply choose a pine tress that is hard or soft,
The amount of depression in the chest and buttocks will differ depending on the weight and physique of the person using this pine stress. Therefore, the quality of a pine restraint is determined not only by whether the pine restraint is hard or soft, but also by whether the hardness of the pine restraint is suitable for the weight and physique of the person using it. Therefore, it is necessary to select pine tresses based on these criteria.

Therefore, the present applicant proposed a pine tress selection device shown in Japanese Utility Model Publication No. 17169/1983. This device works when the user lies supine on a reference pinerest.
The display shows how the reference pinerest elastically deforms and supports the human body as a line graph, allowing the user to understand its overall condition. In other words, in this device, a first curve indicating a good elastic deformation state of the reference pinerest and a second curve indicating an uncomfortable elastic deformation state of the reference pinerest are vertically spaced apart from each other on the display, and the user By comparing the line graph displayed when the user lies supine on the reference pinerest with the first and second curves, the user can select a pinerest with a firmness suitable for him/her.

However, comparing the bending states of the line graph displayed on the display with the first and second curves drawn here shows that the first and second curves are This can be done quickly and reliably by ensuring that the line graphs are spaced apart in the vertical direction and that the position where the line graph is displayed does not remain constant with respect to the first and second curves, depending on the weight of the user. I had a problem that I couldn't do it.

[Purpose of the invention]

An object of the present invention is to provide a device for selecting a mattress that allows a user to quickly and reliably grasp the state of elastic deformation of a reference mattress when the user lies on the reference mattress.

[Summary of the invention]

In this invention, one end of each interlocking rod is connected to a displacement body that displaces in conjunction with a plurality of leaf springs installed on a bed frame when a user lies supine on a reference mattress, and the other end of each interlocking rod is A cable-like body is connected to the display section to display the displacement state of each interlocking rod as a continuous line graph, and a band-shaped reference plate is provided in conjunction with the other end of two of the plurality of interlocking rods, This reference plate is displaced approximately horizontally in response to changes in the interlocking rod, so that the degree of curvature of the line graph formed by the cable-like body is compared with the approximately horizontal reference plate.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1 in the figure is a bed frame. Receiving bars 3 are provided horizontally on the inner surfaces of a pair of opposing side plates 2 of this bed frame 1, and on these receiving bars 3, a plurality of substantially box-shaped supporting members 4 are provided.
are arranged at equal intervals. In each pair of support members 4 corresponding in the width direction of the bed frame 1, leaf springs 5 are curved upward and slidably inserted into the ends thereof, and are installed between the side plates 2. There is. A reference mattress 6 having a predetermined hardness is placed on these leaf springs 5.
In addition, in order to keep the spring constant of each leaf spring 5 constant,
For example, it is made of stainless steel plate.

Further, below each of the leaf springs 5 and approximately at the center in the width direction of the bed frame 1, end plates 7 (only one of which is shown) are provided at both ends of the bed frame 1 in the longitudinal direction.
A support rod 8 connected to is installed. As shown in FIG. 3, L-shaped mounting pieces 9 are fixed to the support rod 8 at positions corresponding to the leaf springs 5, respectively. One end of a displacement body 10 made of an angle member is pivotally attached to each of these mounting pieces 9 by a support shaft 11. Furthermore, a detection member 12 made of, for example, a bolt is protruded from one end of the displacement body 10 so that its protrusion height can be freely adjusted. This detection member 12
The upper end is in contact with the lower surface of the leaf spring 5 as the displacement body 10 is elastically held substantially horizontally by the spring 13. One end of the spring 13 is connected to the support rod 8, and the other end is connected to one of the support rods 3.
The displacement body 1 is
0 is connected to the upper surface of the other end. The other end of the displacement body 10 is set to such a length that it protrudes to the outside from a through hole 16 formed in one side plate 2 of the bed frame 1.

A display section 17 is provided integrally with the bed frame 1 on one side of the bed frame 1 from which the other end of the displacement body 10 projects. This display section 17
The main body 18 is formed into a flat box shape, and a display panel 19 such as a white acrylic plate is provided on one side of the main body 18. This display panel 19 has a supine human body diagram 20 printed on the upper half, and 11 slits 2 dividing the human body into 10 equal parts on the lower half.
1 is bored along the vertical direction. Note that each slit 21 is formed at a position approximately corresponding to the leaf spring 5 installed on the bed frame 1. Furthermore, a lamp 22 for illuminating the display panel 19 is provided within the main body 18 .

Further, at the other end of each displacement body 10 protruding from one side of the bed frame 1, an interlocking rod 23 is provided, the lower end of which is swingably connected by a connecting member 24a. A midway portion of each interlocking rod 23 is supported by a guide member 25a provided within the main body 18 so as to be vertically movable. Further, the upper end of each connecting rod 23 faces a slit 21 formed in the lower half of the display panel 19, respectively. As shown in FIGS. 4 and 5, the upper ends of the pair of connecting rods 23 located at both ends of the supine human body 20 are bent into an L shape and protrude from the slits 21 to the front side of the display panel 19. ing. The protruding ends of these connecting rods 23 are bent into an arc shape, and hooks 24 are fixed thereto. A belt-shaped reference plate 25 is attached to the pair of hooks 24 by engaging the engagement holes 27 of the connecting pieces 26 attached to both ends thereof. That is, the reference plate 25 is installed substantially horizontally along the width direction of the display panel 19. Note that both ends of the reference plate 25 may be installed on any pair of connecting rods 23 instead of the connecting rods 23. In other words, for some users lying supine on the reference pinerest 6, the foot side may be considerably lighter than the head side, so the end of the foot side of the reference plate 25 is not connected to the connecting rod 23 at the end. , attached to the second or third connecting rod 23 from the end,
The reference plate 25 may be easily displaced horizontally. Furthermore, a pair of connecting rods 2 located at both ends
A holding member 28 made of a wire bent into a U-shape is fixed to the upper end of the other connecting rods 23 except for 3 so as to protrude from the slit 21 to the front side of the display panel 19. And the upper end of the connecting rod 23,
That is, in the part corresponding to the reference plate 25, a cable-like body 29 is attached with both ends fixed to the arc-shaped curved parts of the connecting rods 23 at both ends, and the middle part inserted into the holding member 28 of the other connecting rod 23. It is provided. The cable-shaped body 29 is made of a stretchable material such as rubber, and the display panel 19 and the reference plate 29
A different color, such as red, is used. Therefore, as each connecting rod 23 of this cable-like body 29 is displaced in the vertical direction as described later, the displacement of the cable-like body 29 is displayed as a continuous line graph on the supine human body diagram 20. do.

When a person intending to purchase a bed using such a device selects a mattress of suitable firmness for him/her, the person lies supine on the reference mattress 6. Then, different loads are applied to the plurality of leaf springs 5 via the reference mattress 6 depending on the person's weight and physique, and each of these leaf springs 5 is elastically deformed downward by the load. When these plate springs 5 are elastically deformed, the detection member 12 in contact with the lower surface is pressed, and this pressing force causes each displacement body 10 to rotate downward with one end as a fulcrum and the other end. Each interlocking rod 23 slides downward in conjunction with the rotational displacement of the displacement body 10. Therefore, the cable-like bodies 29 connected to the upper ends of these interlocking rods 23 form a line graph to display the displacement state of each leaf spring 5 on the display panel 19. In other words, the standard pine tress 6
The amount of elastic deformation of the portions of the reference mattress 6 corresponding to each part of the human body due to the load applied to the reference mattress 6 is displayed by the above-mentioned line graph. Further, at this time, the reference plate 25 connected to the interlocking rods 23 at both ends is displaced downward in conjunction with these interlocking rods 23. Since the displacement of the interlocking rods 23 at both ends is almost the same,
The reference plate 25 is displaced downward in a substantially horizontal state. Therefore, if we compare the linear reference plate 25 in a substantially horizontal state with the line graph formed by the cable-shaped body 29, the bent state of the line graph, that is, each part of the human body of the reference pine tress 6 will correspond to the bent state of the line graph. It is possible to know the deformed state of the part.

For example, when the line graph G almost matches the reference plate 25 as shown in FIG. 7a,
This means that the standard pine support 6 supports the heavy part of the human body without dropping significantly. As shown in FIG. 7b, if a portion of the line graph G protrudes significantly downward than the reference plate 25, this means that a portion of the human body is significantly depressed, and the user is required to use the reference plate 6. A harder pine tress would be suitable. In addition, when the line graph G is located above the reference plate 25 as a whole as shown in FIG. Therefore, a pine tress that is softer than the reference pine tress 6 is suitable.

That is, since the bending state of the line graph G showing the deformation state of the reference mattress 6 can be known by comparing it with the linear reference plate 25, the deformation state can be quickly and reliably grasped.

Furthermore, when the leaf spring 5 is elastically deformed, the displacement body 10
One end, which is pivoted, is pressed by the detection member 12. Then, the other end of the displacement body 10
It is enlarged according to the ratio of dimensions A and B shown in the figure.
Here, the dimension A can be sufficiently smaller than the dimension B, and in this embodiment, it is about 1/5 to 1/6, so the magnification is 5 to 6 times. Therefore, even if the leaf spring 5 is slightly deformed, the amount of displacement of the interlocking rod 23 that is displaced via the displacement body 10 will be sufficiently large, so that the line graph displayed by the cable-like body 29 due to the displacement of the interlocking rod 23 will be The bent state of G becomes clear, and the deformed state of the reference pinerest 6 can be easily determined.

〔Effect of the invention〕

As described above, the present invention connects a cable to an interlocking rod that is displaced in accordance with the elastic deformation of a leaf spring when a user lies supine on a reference pinerest, and the cable allows the leaf spring to The displacement state is displayed as a line graph, and a reference plate is attached to the interlocking rod, so that the bending state of the line graph can be compared with the display plate. Therefore, the bending state of the line graph can be quickly and reliably grasped using the reference plate. In other words, since the user can easily know whether the reference pinerest is too soft or too hard for the user, it becomes easier for the user to select a pinetress with a hardness suitable for the user.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view of the device, Fig. 2 is a front view, Fig. 3 is a perspective view of the displaceable body in an attached state, and Fig. 4 shows a part of the display section. An enlarged front view, FIG. 5 is a sectional view taken along the line of FIG. 4, and FIG. 6 is a sectional view taken along the line of FIG.
FIGS. 7a to 7c are explanatory diagrams of the relationship between the line graph and the reference plate. DESCRIPTION OF SYMBOLS 1... Bed frame, 2... Side plate, 5... Leaf spring, 6... Reference pinerest, 10... Displacement body,
12...Detection member, 23...Interlocking rod, 25...Reference plate, 29...Cable-shaped body.

Claims (1)

[Claims] 1 A bed frame, a plurality of leaf springs installed between the side plates of this bed frame, a reference mattress placed on these leaf springs, and a plurality of leaf springs disposed movably in opposition to each other below each of the leaf springs. a detection member that is integrally provided with these displacement bodies and has an upper end in contact with the lower surface of the leaf spring; and a detection member that is provided substantially perpendicularly with one end connected to each of the displacement bodies and that is connected to each of the displacement bodies. a plurality of interlocking rods that are displaced in the vertical direction due to displacement; a cable-like body that is continuously connected to the other end of these interlocking rods and displays the displacement state of each interlocking rod on a display section as a continuous line graph; a band-shaped reference connected to two other ends of the plurality of interlocking rods and provided substantially horizontally along the longitudinal direction of the display section, and displacing substantially horizontally in accordance with the displacement of the connected interlocking rod; A pine tress selection device characterized by comprising a plate.