JPH073970A - Staircase structure - Google Patents

Abstract

PURPOSE:To secure the rise dimension and the depth dimension of the stair tread so as to go up and down safely in a narrow space. CONSTITUTION:The stair part 1 of a staircase is laterally divided toward the height direction to form the stair tread 2 (2a-2n) alternately different in height. Case like stair members 3a-3f with the height double the rise dimension and different length corresponding to the depth dimension of the tread 2 are piled up, and storage parts 4a-4d are formed inside. Doors 5 are fitted to these storage parts 4a-4d. Casters 6 are fitted to the bottom face of the stair member 3a in the lowest stage so as to be movable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase structure that can move up and down even in a place with a narrow depth.

[0002]

2. Description of the Related Art In recent residential construction, an attic space is often used as a storage space or a living space, and it is required to make a private room for children. In such a residential building, how to utilize the limited space becomes an issue, and the number of stairs is increasing accordingly.

[0003]

Generally, stairs require a depth of 2.7 m, and the above space cannot always be secured when the internal space of a building is utilized as described above. For example, in order to construct a stairway in a space whose depth dimension is less than or equal to the above dimension, it is necessary to reduce the depth dimension of the footboard. In this case, the foot cannot be placed in a stable state, and the person cannot move up and down. In addition, when the depth of the footboard is increased, the lift must be increased, and in any case, there is a problem in that it is impossible to actually move up and down.

It is an object of the present invention to provide a staircase structure which can be installed in a place having a small depth dimension and can utilize the space.

[0005]

In order to solve the above problems, a staircase structure according to the present invention is one in which a stairway portion is divided into right and left in the height direction and treads having different heights are alternately formed. In addition, a storage portion is formed in the stairway portion.

[0006]

In the above staircase structure, the staircase portion is divided into the left and right in the height direction, and treads having different heights are alternately formed, so that the depth of the tread plate can be made large and the height of the lift can be increased. There is no need to increase the size. Therefore, it is possible to move up and down in a narrow space, and the space can be utilized.

Since the storage portion is formed in the staircase portion, the space under the staircase can be utilized as a space for storing articles.

[0008]

EXAMPLE An example of the above staircase structure will be described below with reference to the drawings. 1 is a side view of the stairs, FIG. 2 is a side view of the stairs, FIG. 3 is a rear view of the stairs, and FIG. 4 is a diagram showing an example of arranging the stairs.

In the figure, a stair A has a height from the floor B of the lower floor to the floor C of the upper floor and a depth dimension (left and right dimensions in FIG. 1) preset as a stair space. It is configured. In this embodiment, the depth dimension is set to 1.8 m.

The staircase portion 1 of the staircase A is divided into right and left in the height direction, and treads 2 (2a to 2n) having different heights are formed alternately on the right side and the left side. Adjacent treads 2, such as the treads 2a and 2b, are formed to have a lift dimension that is substantially equal to a normal lift dimension. It has twice the value.

Although the bottom tread 2a is formed independently, the treads 2b and 2c (treads 2d, 2e to 21 and 2m) are formed in the same plane with different heights. Therefore, the corners of the treads 2a to 2n adjacent to each other are rounded.
It is preferable to chamfer.

Stairs A are twice as high as the lifted dimension and tread 2
The box-shaped staircase members 3a to 3g having different lengths corresponding to the depth dimension are formed, and the staircase members 3a to 3g are sequentially stacked.

The inside of each of the staircase members 3a to 3g is hollow, and the hollow portions are used to form the storage portions 4a to 4d. The storage portions 4a to 4d are the stair members 3a to
It is possible to use the one that is 3 g and is within the height range that a person can reach. A door 5 is provided in each of the storage sections 4a to 4d.

In the present embodiment, the staircase members 3b to 3e are provided with storage portions 4a to 4d. However, it goes without saying that the staircase member 3a can also be provided with a storage portion. Further, in the present embodiment, the door 5 for loading and unloading the articles into and from the storage portions 4a to 4d is attached to the back surface of the staircase portion 1, but it may be attached to the side surface.

A caster 6 is attached to the bottom surface of the lowermost staircase member 3a of the staircase A so that it can be moved to a desired position. For this reason,
The stairs A can function as stairs when going up and down to the upper floors, and can function as unit furniture when not used as stairs.

The stair A is constructed in a narrow space (small flat area). Therefore, the handrail 7 is attached to the stairs A.

The stair A constructed as described above can be used in a room in which the floor surface C of the upper floor projects from the floor surface B of the lower floor, as shown in FIG. 4, for example. is there. In this case, the upper floor is used as a storage space or a living space. Further, the stair A is installed at a position facing the doorway 8 so that the storage sections 4a to 4
While utilizing 4d, it becomes possible to move up and down the floor B of the lower floor and the floor C of the upper floor in a narrow space.

In the stairs A, the treads 2 of the right and left feet are limited when moving up and down. Therefore, the stairs A are inevitable.
It is possible to reduce the width dimension of, and it is possible to effectively use a narrow space to move up and down.

[0019]

As described in detail above, in the staircase structure according to the present invention, the stairway portion is divided into the left and right in the height direction, and treads having different heights are alternately formed. It is possible to secure a lifted dimension. Therefore, it is possible to construct a staircase having high safety even when the depth dimension is small.

Further, since the storage portion is provided on the stairs, the space under the stairs can be utilized to effectively use a narrow space.

[Brief description of drawings]

FIG. 1 is a side view of stairs.

FIG. 2 is a side view of stairs.

FIG. 3 is a rear view of the stairs.

FIG. 4 is a diagram showing an example of arranging stairs.

[Explanation of symbols]

 A staircase B floor of lower floor C floor of upper floor 1 staircase 2, 2a to 2n tread 3a to 3g staircase member 4a to 4d storage 5 door 6 caster 7 handrail 7

Claims (2)

[Claims] 1. A staircase structure, characterized in that the staircase portion is divided into left and right parts in the height direction to alternately form treads having different heights. 2. The staircase structure according to claim 1, wherein a storage portion is formed in the staircase portion.