JP7398110B2 - staircase structure - Google Patents

Description

The present invention relates to a stair structure that can be easily climbed and descended in hospitals and households, even by elderly people and people with disabilities such as those undergoing rehabilitation due to injury.

In recent years, with the increase in the number of elderly people, the number of people who have difficulty going up and down stairs has increased, and while escalators and elevators are being added to public places such as stations, handrails are being installed on stairs, and stairs are being made with gentle slopes. It is being done.
Further, as a means for making it easier to go up and down regular stairs in hospitals and homes, a staircase in which an auxiliary step with a half-step difference has been provided has been developed (see Patent Document 1).

The stair structure of Patent Document 1 has auxiliary steps approximately half the height of a normal staircase installed in a row on one side of the normal staircase in the left-right direction, with one foot serving as the auxiliary step and the other foot serving as the auxiliary step. By using stairs, you can go up and down at almost the same level as stairs with lower steps.

Japanese Patent Application Publication No. 2000-226919

The stair structure of Patent Document 1 is simple and economical because the auxiliary steps are simply fixed to each step of the regular stairs with adhesive or bolts.
By the way, stairs are not always climbed with the left foot (or right foot), but it depends on whether the crippled foot is on the right or the left. Therefore, it is usually desirable to install the auxiliary step on the left side or the right side of the stairs, depending on whether the right or left foot is weak.
However, in the stair structure of Patent Document 1, once the auxiliary step is installed, changing it to either the left or right requires peeling off the adhesive or removing the bolt, and fixing the step to the installation location again, which is not easy.
Furthermore, when using an auxiliary step for rehabilitation in a hospital or the like, it is necessary to change the installation location of the auxiliary step depending on the worse foot, but this is difficult in practice. Furthermore, installing two types of staircase structures, one for the left and the other for the right, requires a lot of space and cost.

Therefore, the present invention provides a stair structure in which an auxiliary step is installed on a normal staircase, which does not require any work of adhesion or fixing with bolts, and in which the auxiliary step can be easily changed to the left or right side of the normal staircase. is intended to provide.

In order to solve the above object, the staircase structure of the present invention was constructed as follows. That is, an auxiliary step with a width of 15 to 35 cm, a step difference of half that of a normal staircase, and a tread surface approximately the same as that of a normal staircase was installed at each step on one side of the normal staircase in the width direction and on the floor of the normal staircase. In the stair structure, the auxiliary step is usually removably attached to the left or right end of a support consisting of a flat base placed on the tread of the stairway and a mounting frame erected at one end of the base, The support is generally characterized in that it is placed on the stairs without being fixed.

Supports and auxiliary steps are usually simply placed on the stairs without being glued or bolted. Therefore, installation and removal can be performed easily. The materials of the support and the auxiliary stage are not particularly limited, but it is desirable to use a steel plate with some weight so that the support and the auxiliary stage do not shift.
Note that a non-slip member is usually fixed at the tip of the tread of a staircase, but it is preferable to provide the anti-slip member with the function of a stopper to prevent the support from shifting forward. In addition, if the staircase does not have a non-slip device, install a non-slip device that also serves as a stopper for the support.

Normally, stairs can be indoors or outdoors. Note that the steps, widths, and dimensions of the treads vary depending on the staircase, so the supports and auxiliary steps are designed for each staircase.
The width of the support should be about half of the width of normal stairs, such as those in hospitals, which are wide, and the width of the support should be the full width of the stairs, since the width is narrow for stairs in general homes.

The auxiliary step is attached to a support that is placed on each step of the stairs, and for domestic stairs, it may be about 1/3 of the width of the stairs (15 to 35 cm), and for wide stairs such as hospitals, it may be a little wider. good. The step difference in the auxiliary step is half that of the normal staircase. The treads are usually shorter than regular stairs because a non-slip tread is installed at the front end of the stairs.

The support body is composed of a flat plate-shaped base and a mounting frame erected at one end of the base, and is not particularly limited as long as it can securely attach the auxiliary stage, but according to claim 2 or claim 3. It is desirable to have the following configuration.

The attachment means for the auxiliary stage according to claim 2 is characterized in that the mounting frame is formed with a convex portion projecting horizontally in a U-shaped cross section, and the auxiliary stage has a recessed portion on the back surface thereof that fits with the convex portion of the mounting frame. The auxiliary stage is fastened to the mounting frame with mounting bolts. The auxiliary stage has a large contact area with the mounting frame and can be firmly mounted.

Further, in the attachment means of claim 3, plate-shaped engagement members are provided upright at the left and right ends of the attachment frame, and the auxiliary stage forms a fitting groove that fits into the engagement members from above. .
Do not fasten the auxiliary stage to the mounting frame with bolts, etc. Therefore, when changing from the left side to the right side of the mounting frame, the auxiliary step can be removed from the mounting frame by simply pulling it straight up, so the work can be done quickly.

In the stair structure of the present invention, the auxiliary step is removably attached to the left or right end of a support consisting of a base and a mounting frame erected at one end of the base, and is normally placed on each step of the staircase. It is easy to attach to regular stairs, and the auxiliary step can be easily changed to the left or right side of the regular stairs.

1 is a perspective view showing the entire staircase structure of the invention according to claim 1. FIG. It is a perspective view which shows the state which attached the auxiliary|assistant stage to the support body of Claim 2. It is a perspective view showing the whole support body in the same same. It is a perspective view showing the whole auxiliary stage of the same. It is a perspective view showing a state in which the auxiliary stage is attached to the left end or right end of the support body. 3 is a perspective view showing the support body and the auxiliary stage according to claim 3, (a) is a perspective view of the support body, (b) is a perspective view of the auxiliary stage seen diagonally from above, and (c) is a perspective view of the auxiliary stage. It is a perspective view seen diagonally from below.

Embodiments of the staircase structure of the present invention will be described based on FIGS. 1 to 5.
FIG. 1 is a perspective view showing the entire staircase structure of the invention according to claim 2, and shows an example applied to a wide existing staircase such as a hospital, and FIG. The perspective views, FIGS. 3 and 4, are overall perspective views of the support 10 and the auxiliary stage 15. Moreover, FIG. 5 is a perspective view showing a state in which the auxiliary stage 15 is changed from the left side to the right side.

As shown in Fig. 1, this stair structure has an auxiliary step 15 fixed to a support 10 and placed on each step, the step being half that of a normal staircase and the tread surface being almost the same as that of a normal staircase. . A non-slip member 1a having a width of 15 to 30 mm is fixed to the front end of the tread of each step.

As shown in FIG. 3, the support body 10 is composed of a flat base 13 and a mounting frame 11 fixed and erected at one end of the base 13. The mounting frame 11 has a central portion formed with a convex portion 12 that protrudes toward the front in a horizontal U-shape. A long hole 12a is formed in the surface of the tip of the protruding convex portion 12 in the horizontal direction. Further, end plates 11a are fixedly provided at both ends in the longitudinal direction.
The support body 10 is made of steel, has considerable rigidity due to the U-shaped convex portion 12 and the end plate 11a, and has a weight that can be easily held by an adult.

The auxiliary step 15 attached to the support body 10 is made of steel, and as shown in FIG. 4, has a rectangular parallelepiped shape and has a non-slip member 15b attached to the front end of the tread surface 15a. A recess 15c that fits into the convex portion 12 of the mounting frame 11 is formed in the back portion in the horizontal direction. Although not shown, two internal threads into which the mounting bolts 16 are screwed are formed in the recess 15c.
Further, in FIG. 4, 15a is a tread, 15e is a front plate, and 15d is a side plate.

As shown in FIG. 2, the auxiliary step 15 fits into the convex portion 12 of the mounting frame 11 of the support body 10, and is fastened with a mounting bolt 16 through the elongated hole 12a from the back.
Since the auxiliary step 5 is mounted in this way, it is normally placed on the step 1 almost integrally with the support 10.

In FIGS. 1 and 2, the auxiliary step 15 is attached to the left side of the stairs (as viewed toward the stairs), but when changing to the right side, first the support to which the auxiliary step 15 is attached is attached. 10 is moved forward, the back mounting bolt 16 is removed, and the auxiliary stage 15 is removed from the support body 10.
Next, the auxiliary stage 15 is moved to the right end of the support body 10 and fastened to the support body 10 using the mounting bolts 16 (see FIG. 5). Then, the support body 10 with the auxiliary step 15 moved thereto may be placed on the right end of the stairs.

Next, an embodiment of the invention according to claim 3 will be described based on FIG.
The stair structure according to claim 3 is similar to the stair structure according to claim 2, in which an auxiliary step 25 is fixed to the right or left end of a support 20 having a mounting frame 22 fixed to one end of a flat base 21. This is what I did. The method for attaching the auxiliary step 25 to the mounting frame 22 is different from the above-described stair structure.

FIG. 6(a) is a perspective view showing the entire support body 20 according to claim 3, FIG. 6(b) is a perspective view of the auxiliary stage 25 viewed diagonally from above, and (c) is a perspective view of the auxiliary stage 25 viewed diagonally from below. FIG.
The support body 20 is composed of a flat base 21 and a mounting frame 22 fixed and erected at one end of the base 21.

The mounting frame 22 has a back plate 22c erected at the end of the base 21, and an end plate 22d that is integral with the back plate 22c at the side end. and an intermediate plate 22b connected thereto are fixedly installed in parallel.
The engagement member 22a is erected apart from the back plate 22c, and a gap is formed between the engagement member 22a and the back plate 22c. The engaging members 22a are erected on the left and right sides of the base 21, one end is fixed to the end plate 22d, and the center part is formed integrally with a middle plate 22b fixed to the back plate 22c.

As shown in (b) and (c), the auxiliary step 25 is a rectangular parallelepiped, and has a non-slip member attached to the front end of the tread 25b. A fitting groove 25a is provided at the rear lower end to fit into the engaging member 22a of the mounting frame 22 from above. In addition, in the figure, 25d is a front plate, 25c is a side plate, and 25e is a bottom plate.

When changing the auxiliary step 25 to the right side of the stairs, it is only necessary to lift the auxiliary step 25, remove it from the engagement member 22a, and fit it into the right-side engagement member 22a. Then, for wide stairs, the support body 20 is moved to the right side of the stairs. Since there is no fastening work with bolts, there is no need to move the support body 20 forward. In addition, when the width is narrow like a staircase at home, it is sufficient to move only the auxiliary step 25 without moving the support body 20.

In the above embodiment of claim 2, the elongated hole 12a is formed to attach the auxiliary step 15 to the mounting frame 11, but the hole 12a is not limited to the elongated hole 12a. may be formed.

1 Normal stairs 1a Anti-slip 10 Support 11 Mounting frame 11a End plate 12 Convex portion 12a Long hole 13 Base 15 Auxiliary step 15a Tread 15b Non-slip 15c Recess 15d Side plate 15e Front plate 16 Mounting bolt 20 Support 21 Base 22 Mounting frame 22a Engagement member 22b Middle plate 22c Back plate 22d End plate 25 Auxiliary stage 25a Fitting groove 25b Tread 25c Side plate 25d Front plate 25e Bottom plate

Claims (3)

A stair structure in which an auxiliary step is installed on each step on one side in the width direction of an ordinary staircase and on the floor of the ordinary staircase, the width is 15 to 35 cm, the step is half that of an ordinary staircase, and the tread is almost the same as that of an ordinary staircase. The auxiliary step is usually removably attached to the left or right end of a support consisting of a flat base placed on the tread of the stairway and a mounting frame erected at one end of the base. A stair structure characterized by the fact that the body is usually placed on the stair without being attached to it. The mounting frame is formed with a protrusion that protrudes in the horizontal direction and has a U-shaped cross section, and the auxiliary stage has a recess formed on its back surface that fits into the protrusion of the mounting frame, and the auxiliary stage The stair structure according to claim 1, wherein the stair structure is fastened to the frame with bolts. The mounting frame has plate-shaped engagement members erected at the left and right ends thereof, into which the auxiliary stages fit, and the auxiliary stage is provided with a fitting groove into which the engagement members are fitted from above. The stair structure according to claim 1, characterized in that:

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