JPS5939586B2 - Space efficient use stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a staircase, and particularly to a staircase that is installed in a narrow space and makes efficient use of space.

The steeper the stairs, the more difficult it becomes to go up and down the stairs.

This will be briefly explained below with reference to the drawings.

FIG. 1A is a side view of a staircase that has a moderate slope and is relatively easy to ascend and descend.

FIG. 1B shows a side view of a staircase that has a steeper slope than the staircase shown in FIG. 1A.

As can be easily seen by comparing these Figures 1A and 1B, when the spacing of the treads is made equal, the slope of Figure 1A is gentler.
In the staircase shown in the figure, the effective usable width (width in the longitudinal direction) dl of the tread is large, whereas in the staircase shown in FIG. 1B, which has a steep slope, the effective usable width d2 of the tread is small.

This means that when the distance between the treads is constant, as the slope of the stairs becomes steeper, the effective width of the treads becomes smaller, making it easier (and dangerous) to trip on the treads when going up or down.

To avoid this, the distance between the treads can be widened, but there is a limit to this distance, and the reality is that it is difficult to go up and down steep stairs.

In reality, there are many cases where it is necessary to install steep stairs in narrow spaces, and many dangerous stairs are installed.

In addition, the required length, inclination, spacing between treads, overall shape of the stairs, etc. vary depending on the installation location and purpose, and various modifications are made to the design to meet these many requirements. It is.

Therefore, the material must be changed depending on the installation location and purpose.

In view of the current situation, it is an object of the present invention to provide a staircase with a steep slope but with a wide range of effective use of treads, in other words, with high safety and effective use of space.

Another object of the present invention is to provide a space-efficient staircase that can be easily adapted to any installation location or use and is easy to install.

In the staircase of the present invention, plate-shaped treads for one foot are provided alternately on the left and right sides of a single post installed at an angle via an attachment position adjustment means, and this attachment position adjustment means According to the inclination angle of the footboard, the angle of the footboard can be adjusted so that it is always horizontal.

It is characterized by this.

In the present invention, one post is provided with treads for one foot on the left and right alternately, so the length and inclination of the entire staircase can be changed simply by changing the length and inclination of the support, and the slope can be made steeper. However, the effective use of the tread can be widened, making it easy to go up and down the stairs, and there is no risk of tripping over the tread, resulting in high safety.

Further, since the footboards can be attached to one support column in an adjustable manner, the footboards can be installed at desired intervals as appropriate, and assembly is easy.

This position adjustment can be performed by not only adjusting the height or spacing of the treadle or the vertical position, but also the horizontal position to the left or right.

Additionally, the tread can be rotated around a horizontal axis to change its angle.

It is also possible to change the orientation of the treads around a post by fixing the treads to the post by means of sleeves that can slide and rotate around a single post, thereby making the stair entrance more or less You can also climb from a lateral direction to the left or right, or you can use your left and right feet alternately to go up and down the stairs, rotating the whole thing around the support (like a spiral staircase). You can also.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2A is a perspective view of a space-efficient staircase showing one embodiment of the present invention, FIG. 2B is a front view of some details of the embodiment shown in FIG. 2A, and FIG. 2C is a side view of FIG. 2B. It is.

In this embodiment, single-foot footboards 1 are fixed to a single support post 3 alternately on the left and right, and one end of the support post 3 is fixed to a floor surface 11 and the other end is fixed to a wall surface 12.

This support 3 may have a sliding double-tube structure so that its length can be changed, or it may have a fixed length cut at the factory.

In addition, in order to change the inclination depending on the installation location, a rotating structure is provided on the mounting parts at the upper and lower ends, and the support 3 can be rotated freely around the horizontal axis by the rotating structure 3a, so that the installation angle can be changed. You can also.

The one-foot footboard 1 is fixed to the support column 3 by a support member 6 consisting of a curved cylindrical arm 5 and a sleeve 4 that fits into the support column 3 to which the arm 5 is fixed.

The height and rotational position of the one-legged footboard 1 can be set arbitrarily by the sleeve 4 which is slidably fitted and fixed to the support column 3, so that the pitch and rotational position of the single-footed footboard 1 can be freely changed. It has become.

The one-foot treadle 1 (la, lb) is placed alternately on the left and right pillars 3 in the center.
They are installed on both sides of the foot so that neither foot gets caught on the other foot's single foot treadle 1 when walking.

The setting positions of the one-legged footboards 1a and lb in the direction of the arrow in FIG.
It is designed to be fixed by sliding it along and adjusting it.

This allows the width of the tread in the left and right directions to be changed.

The pillar 3 and the support member 6 may be made of any material having sufficient strength, such as metal, wood, or plastic.

Next, the fact that the effective usable width of the stair tread of this embodiment is larger than the available usable width of a typical stair tread and its effects will be described.

iaA diagram is a schematic plan view showing a typical staircase, 3B
The figure is a schematic plan view showing the staircase of the present invention.

As shown in FIG. 3A, in a typical staircase, when the horizontal mounting pitch of each step is t, the effective width of the tread 1 is D.
On the other hand, as shown in Fig. 3B, in the staircase of the present invention, the treads are provided alternately on the left and right, so at the same pitch of 7, the effective usable distance of the tread 1 is Dl, which is twice Dl, and the steps are You won't have to worry about getting caught, making it easier to go up and down.

As explained above in detail, the space efficient use staircase of the present invention has treads for one foot alternately on the left and right! Therefore, even if the footboard is installed on a steep slope in a narrow installation space, the effective width of the footboard becomes larger, and the part of the footboard that supports the foot becomes larger, and the foot is less likely to get caught when walking, resulting in high safety.

In addition, since the treadle is attached to a single post so that its mounting position can be adjusted, the spacing between the treadles can be selected as appropriate, and assembly is easy, which is of great practical value.

[Brief explanation of drawings]

Figure 1A is a side view showing a staircase with a moderate slope;
Figure B is a side view showing a staircase with a steep slope. Fig. 2A is a perspective view of a space-efficient staircase showing one embodiment of the present invention, Fig. 2B is a partially detailed front view of the embodiment shown in Fig. iZA, and Fig. 2C is a side view of the front view shown in Fig. i2B. 3A is a schematic plan view showing a general staircase, and FIG. 3B is a schematic plan view showing the space efficient use staircase of the embodiment shown in FIG. 2A. 1...Treadboard, 3...Post, 6...
...Supporting member, 5...Arm.

Claims (1)

[Scope of Claims] 1. Plate-shaped treads for one foot are provided alternately on the left and right sides of a single pillar installed at an angle through mounting position adjusting means, and the mounting position adjusting means A space-efficient staircase characterized in that the angle of the tread can be adjusted so that it is always horizontal according to the inclination angle of the tread, and the horizontal position of the tread can be adjusted in the left-right direction. 2. The staircase according to claim 1, wherein the length of the support column is variable. 3. The staircase according to claim 1, wherein the support column is provided with angle adjustment means for changing the mounting angle at both ends. 4. The staircase according to claim 1, wherein the mounting position adjusting means is adjustable to change the height of the step board.