JP2013019123A - Staircase attachment for staircase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an existing staircase of a building such as a house to be changed to an alternated type staircase.SOLUTION: A staircase attachment for a staircase comprises: a tread part 11 which has a width almost equivalent to the width of a tread of the existing staircase and has an extension surface part 12 with a width of almost half the width of the tread part 11 extended to the front side; and a riser part 13 which stands upright on the back side of the tread part 11. On a back surface of the extension surface part 12 of the tread part 11, a fixing member 15 is provided. The riser part 13 is joined to a riser of the existing staircase, suited to a nosing of the existing staircase, and fixed to the existing staircase by the fixing member 15. A plurality of staircase attachments 10h and 10m each provided with the extension surface part 12 on a different side, left or right, are prepared and alternately attached to the existing staircase. Or, the staircase attachment for the staircase comprises a tread part which has a width equivalent to half the width of the existing staircase, an extension part at the front of the tread part, a height-adjustable support provided on a lower surface of a tread part front side, and a fixing member provided on a lower end of the support, and the staircase attachments are fixed to the front side of respective step parts of the existing staircase alternately on the right and left.

Description

  The present invention relates to a staircase attachment for staircases that can be additionally attached to existing staircases of buildings such as various houses and can be changed to “alternate staircases” (registered trademark) in which treads are alternately stepped left and right.

The applicant of the present application has already obtained a plurality of design registrations for various staircases in which the treads are formed in different steps.
Design registration Nos. 1344132, 1356675, 1356676, 1387344, 1408737, 1401768, 1401769, 1401770, 1401771, and No. 1401772 can be mentioned.

Design Registration No. 1344132 Design Registration No. 1356675 Design Registration No. 1356676 Design Registration No. 1387344 Design Registration No. 1401737 Design Registration No. 1401768 Design Registration No. 1401769 Design Registration No. 1401770 Design Registration No. 1401771 Design Registration No. 1401772

The staggered staircase relating to the registered design is entirely a finished product, and the finished product is installed in various houses.
In the present invention, the problem is to provide a stair attachment for an existing staircase that can be additionally formed on an existing normal staircase of a building such as various houses to easily form this staggered staircase. It is to propose.

The reason why the staircase of such a staggered type is used instead of the existing type of staircase is that it is easy to go up and down first.
Moreover, the length of the actual tread (tread) in the front-rear direction of the tread can be increased by adopting the alternate form. This reduces the risk of stepping off and slipping.
Furthermore, in the present invention, since it is of a staircase attachment type that is additionally attached to a normal existing staircase, it is also a problem that it can be changed to a normal existing staircase and returned to its original form as needed. Become.

In order to solve the above-mentioned problem, the applicant of the present application has already proposed a staircase attachment for staircase in Japanese Patent Application No. 2010-185365 dated August 20, 2010. Suggest something.
The improvement is to reduce the number of columns that support the treads, and to eliminate the columns.

In order to solve the above-described problem, a first aspect of the present invention is a staircase attachment for a staircase that can be detachably attached to an existing staircase of a building such as a house, and is substantially the same as the width of a step board of the existing staircase. A step plate portion having an extended surface portion extending substantially in front and a kick plate portion standing upright on the front side of the step plate portion, and / or the back surface of the extended surface portion of the step plate portion and / or A fixing member is provided at the front side edge portion, and the kick plate portion is joined to the kick plate of the existing staircase so as to fit the nose of the existing staircase, and can be attached and fixed to the existing staircase by the fixing member. Stair attachment.
Here, the “near side” in the “extended surface portion extending toward the near side” means the near side as viewed from the direction of going up the stairs. The same applies hereinafter.

  According to a second aspect of the present invention, there is provided a staircase attachment for staircases according to the first aspect, wherein at least one fixing member is provided at an upper end side edge portion of the kick plate portion.

A third aspect of the present invention is a staircase attachment for a staircase that can be detachably attached to an existing staircase of a building such as a house, and includes a stepboard portion having a width that is approximately half the width of the stepboard of an existing staircase. The front edge of the tread has an extension that extends forward and can be placed on the top of the tread of the existing staircase. The lower end is provided with a fixing member that can be fixed to the nose on the near side of the step board of the existing staircase. The front extension of the step board is placed on the step board of the existing staircase, and the lower end of the post is adjusted by adjusting the height of the column. A staircase attachment for staircases that can be attached and fixed to an existing staircase by a fixing member.
Here, “front” in “to the front edge of this tread” means the front as viewed from the direction of going up the stairs. The same applies hereinafter.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, a fixing extension portion extending forward is also provided on the front back surface side of the tread plate portion, and the stair nosing of the existing staircase is fixed from below by the fixing extension portion. It is a staircase attachment for staircases characterized by being made possible.

  According to a fifth aspect of the present invention, in the staircase attachment for staircases according to the first aspect of the present invention, a plurality of extension surface portions extending on the front side are provided on either side, and these are provided for each of the existing staircases. A staircase attachment for staircases characterized in that the staircases of existing staircases can be alternately formed on the left and right alternately by being fixed to the treadles alternately.

According to a sixth aspect of the present invention, the stair attachment for a staircase according to the third aspect of the present invention is mounted on and fixed to the front side of the step board of the existing staircase or on the tread board alternately so that the step board of the existing staircase is alternately left and right. A staircase attachment for staircases characterized in that it can be formed alternately.
The above "front side of the tread board or above the tread board" means that at the bottom of the existing staircase, it will be installed on the front side of the tread board, the top step of the existing staircase, that is, the front side of the upper floor This is because it will be mounted on the top of the existing staircase.

  A seventh aspect of the present invention is the staircase for stairs according to the fifth aspect, wherein the staircase attachment according to the third aspect of the present invention is further attached and fixed to the existing staircase one step below the upper floor surface. It is an attachment.

In the first embodiment of the present invention, the stair attachment can be easily changed to a staircase of a staggered type by attaching the stair attachment to the existing staircase. The attachment can be removed and easily returned to the original existing stairs.
In this stair attachment, since no column is provided on the back surface of the tread plate portion, the height adjustment of the column is unnecessary, and the installation is easy.
Furthermore, since there is no column on the lower surface of the tread plate and there is no tension bar or the like, the column and the tension bar do not get in the way when going up and down the stairs.

In the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the fixing member is provided at the upper edge portion of the kick plate portion, the attachment and fixing are more reliable.
In the present invention, the kick plate portion is fitted between the nose of the existing staircase (protrusion portion of the front side edge portion of the tread plate) and the tread plate, and the upward movement (movement due to the rotational moment) is prevented, The stair attachment according to the present invention is attached and fixed to the existing staircase by preventing the movement of the tread plate portion toward the front by the function of the fixing member provided on the back surface of the extended surface portion of the tread plate portion, etc. By providing the fixing member, the stair attachment according to the present invention is more firmly fixed.

In the third one of the present invention, unlike the above invention, it has one column, but by attaching this stair attachment to the existing staircase, it can be easily changed to a staggered staircase, This is unnecessary, and when returning to a normal staircase, the stair attachment can be easily removed to easily return to the original existing staircase.
That is, it consists of a tread that has a width that is approximately half the width of the tread of the existing staircase, and the front extension is placed on the top surface of the tread of the existing stair, and the height of the front strut is adjusted, The fixing member at the lower end can be attached and fixed to the step nose of the step board one level below the existing stairs.

According to a fourth aspect of the present invention, in the third aspect of the present invention, a fixing extension portion extending forward is also provided on the front back surface side of the tread plate portion so as to be fixed from the lower side of the nose.
Thus, for example, the tread plate portion can be fixed to the nose by tightening from the lower surface of the fixing extension portion with a screw or the like.

  According to a fifth aspect of the present invention, in the staircase attachment according to the first aspect of the invention, a plurality of left and right extension surface portions are prepared, and the extension surface portions are arranged on the step plates of all the steps of the existing staircase. By installing them in a staggered manner, all the existing staircases can be easily changed to staggered staircases.

  Similarly, in the sixth aspect of the present invention, all the existing stairs can be easily obtained by alternately installing the staircase attachment according to the third aspect of the present invention on the front side or on the right side of all the stairs. It can be changed to staggered staircases.

In the seventh aspect of the present invention, the staircase attachment according to the third aspect of the present invention is attached and fixed to the existing staircase one step below the floor on the floor, so that the existing staircase is in a staggered form in a more complete form. It can be a staircase.
In any of the fifth to seventh inventions, if necessary, the staggered staircase can be removed and returned to the state of the existing staircase.

BRIEF DESCRIPTION OF THE DRAWINGS It is the whole perspective view of the stair attachment for stairs which concerns on the 1st Embodiment of this invention, Comprising: (A) is what the extended surface part extended in the near side of a tread board part was provided in the left side, (B) Shows an extension surface portion provided on the right side. It is explanatory drawing which looked down from the upper side of the state which attached and fixed to the existing staircase the staircase attachment for staircases concerning the said 1st Embodiment. It is explanatory drawing seen from the downward side of the state which attached and fixed the staircase attachment for stairs which concerns on the said 1st Embodiment to the existing stairs. It is the perspective view seen from the lower side which illustrates the staircase attachment which concerns on the 2nd Embodiment of this invention. It is explanatory drawing of the state which looked down on the state which fixed the staircase attachment which concerns on the said 2nd Embodiment to the existing staircase from the top. It is explanatory drawing which looked at the state which fixed the staircase attachment which concerns on the said 2nd Embodiment to the existing staircase from the downward direction.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is an overall perspective view of a staircase attachment for staircases according to a first embodiment of the present invention, in which (A) is provided with an extended surface portion on the left side extending to the front side of the tread plate portion, The (B) shows that the extended surface portion is provided on the right side.

  The stair attachment 10 according to the first embodiment of the present invention includes a step board portion 11 placed on the upper surface of a step board of an existing staircase, and a kick provided to stand vertically upward from the front side of the step board portion 11. And an extended surface portion 12m extending from the left half of the tread plate portion 11 to the near side (FIG. (A)), and extending from the right half portion of the tread plate portion 11 to the near side. There are two types of ones (Fig. (B)). These have a symmetrical shape.

Although not shown, the tread portion 11 has substantially the same shape and size as the tread of the existing staircase.
The plan view shape of the extended surface portion 12 may be a substantially rectangular shape and may be approximately half the size of the existing staircase, but the front side corner portion is chamfered to have a radius as in this embodiment. It can be a shape. Design is taken into consideration. Therefore, the extension length of the front side of the extension surface portion 12 is substantially the same as the length in the front-rear direction of the tread surface of the existing stairs.
The step board part 11, the kick board part 13, and the extended surface part 12 are all made of wood.
The fixing member and the like will be described with reference to subsequent drawings.

FIG. 2 is an explanatory diagram viewed from above the state in which the stair attachment for staircases according to the first embodiment is attached and fixed to an existing staircase.
In the figure, S indicates the second floor, but the stair attachment 10h according to the present embodiment is attached and fixed to the step board F1 below the second floor S.

The stair attachment 10h is provided with an extended surface portion 12h in which the left half portion (half portion on the left side) of the tread plate portion 11 extends toward the front side.
A stair attachment 10m is attached and fixed to the step board F2 at the lower level.
The stair attachment 10m is provided with an extended surface portion 12m in which the right half portion (1/2 portion on the right side) of the tread plate portion 11 extends toward the front side.
Thereafter, staircases of staggered form are formed sequentially and sequentially downward.

The stair attachment 10 is fixed on the back surface of the extended surface portion 12 with a metal angle member or the like. The state will be described with reference to FIG.
Moreover, the fixing member 14 is provided in two places of the upper end side edge part 13u of the kick board part 13 of each staircase attachment 10h and 10m.

The fixing member 14 is made of a metal main body, and is provided with a pressing rod that can be raised and lowered in the vertical direction of the main body, and the pressing rod protrudes upward by rotating a knob below the main body. The kick plate portion 13 can be fixed by pressing the nose against which the tip abuts. In this embodiment, as the fixing member 14, a commercially available product (trade name “Strong Benly Shimari” manufactured by Shimizu Co., Ltd. (Osaka City)) is used.
The fixing member can be freely selected.
For example, an embedded nut is provided at the upper edge of the kick plate, and a bolt is screwed into the embedded nut so that the bolt can be rotated and extended so that the lower surface of the nose can be pressed and fixed. You can also

FIG. 3 is an explanatory diagram viewed from the lower side in a state in which the staircase attachment for staircases according to the first embodiment is attached and fixed to an existing staircase.
The stair attachment 10h is fixed to the step board F1 one step below the second floor part S, and the stair attachment 10m is fixed to the step board F2 below it.

For fixing, a fixing member 15 provided on the lower surface of the extended surface portion 12 of the stair attachment 10 is used.
The fixing member 15 is screwed and fixed to the back surface of the extension surface portion 12 and the front side surface of the nose F1 by screws using a metal angle member.
Thereby, it can prevent that the tread part 11 of the stair attachment 10 moves to the near side.
Here, instead of the angle member, it is also possible to fix using a Z-shaped (crank-shaped) metal fitting that is joined to the back surface of the extended surface portion 12, the front side surface of the step board F1, and the back surface of the nose of the step board F1. it can.
Thus, the selection of the fixing member is free.

Further, as described above, the kicking plate portion 13 is pressed and fixed on the lower surface of the nose of the footboards F1 and F2 by the fixing members 14 and 14 provided at two locations 13u on the upper edge portion of the kicking plate portion 13. The
The stair attachments 10h and 10m according to the present invention are firmly fixed to the existing staircases by the fixing member 15 and the fixing members 14 and 14, respectively.
In addition, in the stair attachment 10 according to the present invention, the fixing member 14 provided at the upper edge portion of the kick plate portion 13 is not necessarily essential but is optional. This is because even if the fixing member 14 is not provided, the stair attachment 10 according to the present invention has the vertical length of the kick plate portion 13 matched to the distance between the step board and the nose of the existing staircase. It is because it can be fixed to the existing stairs by fitting.

FIG. 4: is the perspective view seen from the downward side which illustrates the stair attachment which concerns on the 2nd Embodiment of this invention.
The stair attachment 20 according to the second embodiment includes a wood-made step board portion 21 having substantially the same size and shape as a half portion (substantially 1/2 portion) of an existing stair step board. A metal extension portion 24 is provided on the front side H, and a height-adjustable support column 23 is provided on the back side of the front side.

A fixing means 25 is provided at the lower end portion of the column 23, and metal fixing extensions 28, 28 are provided on the lower surface side of the front side H of the tread plate portion 21.
More specifically, the extension 24 uses a metal mold having a substantially crank shape (Z-shape) in cross section, and the fixing extensions 28 and 28 are each formed using a metal plate. The reason why this metal plate material is used is that the tread plate portion 21 uses a parquet, so that the reinforcing function is also exhibited.

Therefore, if the fixing extension portion 28 is formed in a U-shaped cross section at the front edge of the tread plate portion 21 using, for example, a channel material or an H-shaped material, the extension portion 24 and the fixing extension portion 28 are formed. Can be formed so that they can be fitted to the nose of the existing staircase.
A round hole provided in the fixing extension 28 indicates a screw insertion hole 28h.

The column 23 is composed of an upper end portion 27 provided above and a screw rod 26 below the upper end portion 27, and an upper end fixing portion 27 h of the upper end portion 27 is formed in a disc shape and is screwed to the tread plate portion 21.
The upper end portion 27 is provided with a female screw hole in its axial direction, and the male screw portion 26s of the screw rod 26 is screwed into the female screw hole, so that the length (height) of the column 23 can be adjusted.

A head portion 26h provided at the lower end portion of the screw rod 26 of the support post 23 is disposed inside a metal fixing member 25 having a substantially U-shaped cross section, and the fixing member 25 is attached to the nose of an existing staircase. By tightening the screws 29, 29 on the lower surface, the support post 23 can be fixed to the nose of the existing staircase.
FIG. 5 and FIG. 6 below show a state where the second embodiment is attached and fixed to an existing staircase.

FIG. 5 is an explanatory diagram of a state in which the stair attachment 20 according to the second embodiment is fixed to an existing stair as seen from above.
First, the extension part 24 is mounted on the front side edge of the second floor part S, and the tread part 21 is disposed above the right half of the tread F1 of the existing stairs just below.

That is, the opening part of the substantially U-shaped cross section of the fixing member 25 provided at the lower end part of the screw rod 26 constituting the support column is adapted to the nose D1 of the existing staircase F1.
The screw rod 26 is appropriately rotated to adjust the height of the column, and the height of the tread plate portion 21 is set to the same level as the plane of the second floor portion S.
Thereafter, the two screws 29, 29 arranged on the lower surface of the fixing member 25 are tightened to fix the support column, whereby the stair attachment 20 according to the second embodiment is attached and fixed.
In the same manner, the stair attachment 20 according to the second embodiment is attached and fixed to the left side of the step board below, and the steps are alternately repeated, thereby forming staggered staircases.

In this embodiment, as will be described with reference to FIG. 6, the extension 24 is fixed on the lower surface side.
FIG. 6 is an explanatory view of the state in which the stair attachment 20 according to the second embodiment is fixed to an existing staircase as viewed from below.
From this figure, the fixation of the fixing extension portion 28 on the front side of the lower surface of the tread plate portion 21 can be clearly seen.

As described above, the stair attachment 20 according to the second embodiment is first attached and fixed to the second floor part S and the step board F1 of the existing staircase just below it.
For fixing, the front extension is placed on the second floor S, and the height of the column 23 is adjusted. Then, the fixing member 25 at the lower end of the column 23 is fixed to the nose D1 of the tread F1 by the screw 29. Furthermore, it can fix with the screw 30 from the lower surface of the extension parts 28 and 28 for fixation on the front back surface side of the tread plate part 21.

Note that fixing of the fixing extension portion 28 by the screw 30 is not necessarily indispensable, and is an arbitrary configuration.
In this way, in the present invention, the stair attachment 20 according to the second embodiment is alternately installed in the right half and the left half of the existing staircase one after another, and fixed, so that the existing staircase can be easily staggered. It will be reborn as a staircase.

The stair attachment to be installed on the front side of the first step of the existing staircase can be set freely on the left side and on the right side. If the first step is on the left side, the first step of the existing staircase The stair attachment 20 according to the second embodiment of the present invention may be attached and fixed to the left side of the front side of the step board. On the other hand, when the right side is the first step, the stair attachment 20 is connected to the first step. It can be attached to the right side of the tread board.
In the first-stage stair attachment 20, the fixing member 25 at the lower end of the column 23 is not necessary. Therefore, the fixing member 25 may be removed from the screw rod 26. The head portion 26h at the lower end of the screw rod 26 can be directly screwed to the floor portion with a screw. Of course, it is also possible to carry out without screwing the head 26h.

Finally, in FIG. 2 of the first embodiment, the stair attachment 10 is fixed to the uppermost step board F1 of the existing staircase, and further, on the right side of the step board portion 11 in the figure, the staircase according to the second embodiment. The attachment 20 can also be attached and fixed.
By doing in this way, in FIG. 2, the staircase of the staggered form can be a completely staggered form in all of the existing staircases.

As described above, the stair attachments 10 and 20 according to the first and second embodiments can be attached to existing staircases to form staggered staircases.
And each tread of the staggered staircase is half the width of the existing staircase, but its length in the front-rear direction is twice that of the existing staircase. There is very little worry about stepping out.
That is, each tread has the area of a landing.
Note that the staircase attachment according to the present invention causes the staircase (registered trademark) to appear on the existing staircase. For this purpose, only the first embodiment or the second embodiment is used. It can be installed alternately on the left and right on each step, or can be realized by combining both.

Although the embodiment has been described above, in the present invention, the form can be variously changed as follows.
In the first embodiment, the shape and size of the tread plate portion and the kick plate portion are substantially the same as the size and shape of the existing staircase, but the shape of the extended surface portion can be changed as appropriate, A rectangular shape or a front corner portion thereof can be chamfered to form a rounded shape.
The length of the extended surface portion in the front-rear direction is substantially the same as the length of the existing staircase in the front-rear direction. Thereby, each tread surface of the staircase of the staggered form is twice as long as the existing staircase.

Various fixing members provided on the back surface of the extended surface portion and the like can be freely selected. Two or more may be provided.
In the first embodiment, the fixing member is provided on the back surface of the extended surface portion. However, the fixing member is fixed by using a metal fitting that joins the near side edge portion of the tread plate portion 11 and the near side edge portion and / or the bottom surface of the existing stair nosing. You can also
Moreover, the fixing member provided in the upper end side edge part of a kick board part can also be selected freely, and the number provided is also free.

In the second embodiment as well, not only the shape of the tread portion in plan view is made a substantially rectangular shape, but also the front corner is chamfered, and a round is added to improve design and to design freely. it can.
The length in the front-rear direction may be substantially the same as the length in the front-rear direction of the existing staircase. Thereby, the front-back direction length of a tread surface can be made into 2 times of the existing staircase.
The struts may be anything that can be adjusted in height, and those having other configurations can be employed.

Further, after the stair attachment according to the present invention is installed on the existing staircase, various types of sheets, mats, and the like can be laid on the tread board portion to add a non-slip member or a cushion member.
Particularly in the second embodiment, it is desirable to lay various sheets and mats in order for the extension part to be placed on the upper surface of the nose of the existing staircase and appear outside.

  As described above, according to the present invention, staggered staircases can be made to appear on existing staircases of buildings such as extremely unique and epoch-making houses. It is possible to provide a staircase attachment for staircases that is excellent in safety.

DESCRIPTION OF SYMBOLS 10, 20 Stair attachment 11, 21 Tread board part 12 Extension surface part 13 Kick board part 14 Fixing member 15 Fixing member 23 Post 24 Extension part 25 Fixing member 26 Screw rod 27 Upper end part 28 Fixing extension part D Nose F Step board S 2 Floor

Claims (7)

A staircase attachment for a stair that can be detachably attached to an existing staircase of a building such as a house,
The step plate portion (11) having an extension surface portion (12) having a width substantially equal to the width of the step plate of the existing staircase, and approximately half of which is extended to the front side, and the front side of the step plate portion (11). It consists of a kick plate part (13),
A fixing member (15) is provided on the back surface and / or the front side edge of the extended surface portion (12) of the tread plate portion (11),
A staircase attachment for staircases, characterized in that the riser plate portion (13) is joined to a riser plate of an existing staircase so as to be fitted to the staircase of the existing staircase, and can be attached and fixed to the existing staircase by the fixing member (15).   The staircase attachment for staircase according to claim 1, wherein at least one fixing member (14) is provided on an upper end side edge portion of the kick plate portion (13). A staircase attachment for a stair that can be detachably attached to an existing staircase of a building such as a house,
It consists of a tread part (21) with a width that is approximately half the width of the tread of the existing staircase. Can be placed on the top surface
A height-adjustable support post (23) is provided on the back side of the front side of the tread part (21), and a fixing member (25) that can be fixed to the nose on the front side of the step board of the existing staircase at the lower end of the post (23) Provided,
Place the extension (24) in front of the tread (21) on the tread of the existing staircase, adjust the height of the column (23), and fix it to the existing stair by the fixing member (25) at its lower end Stair attachment for staircases characterized by being able to.   A fixing extension (28) extending forward is also provided on the front back side of the tread (21), and the stair nosing of the existing staircase can be fixed from below by this fixing extension (28). The stair attachment for stairs according to claim 3. A plurality of staircase attachments (10) according to claim 1, wherein a plurality of extension surface portions (12) extending on the front side are provided on either the left or right side,
A staircase attachment for staircases, wherein the staircases of the existing staircase can be alternately formed on the left and right sides alternately by fixing them to the respective stepboards of the existing staircase.   By attaching and fixing the stair attachment (20) for staircases according to claim 3 on the front side or on the tread of the existing stairs alternately, it is possible to alternately form the treads of the existing stairs alternately on the left and right. Stair attachment for staircase characterized by.   The staircase attachment for staircase according to claim 5, further comprising the staircase attachment (20) according to claim 3 attached and fixed to an existing staircase one step below the upper floor.