JP5270950B2 - Stairs, tread mounting brackets for stairs - Google Patents

Description

  The present invention mainly relates to a staircase in which a side plate such as a spar girder is eliminated, a pole is built on at least one side of the tread plate, and the tread plate is fixed to the pole, and a tread plate mounting bracket for the stair used for this stair .

  Conventionally, the staircase is constructed by fixing both ends of a step board arranged stepwise in a staircase shape to a wall (Patent Document 1), or sandwiching it between side girders called diagonally installed girders (Patent Document) 2). When such a staircase is installed in a room such as a house, there is a feeling of blockage, which restricts the design of the tread. In the surrounding staircase, the support material for supporting the tread was fixed to the center pole with a diameter of about 200 mm in a spiral shape. However, the pole is large and heavy, Reinforcing materials such as “tsuka” were necessary.

Then, in order to show a tread more actively, the proposal which supports the lower surface of a tread with a side girder is also made (patent document 3).
JP-A-6-294191 JP-A-6-32917 JP2007-146499A

  In the conventional staircase, in order to secure a safe walking by supporting the step board with one side girder even if the lower surface of the tread board is supported by the side girder, the side girder must be made large in cross section. The entire heavy image could not be wiped out. Further, in order to support the side girders, beams and the like for receiving the upper and lower sides of the side girders on the floors of the upper and lower floors are necessary. In particular, when adding stairs by renovation, the reinforcement was complicated and could not be adopted.

  However, the present invention solves the above-mentioned problems because the side girders such as the spar girders are eliminated and the end faces of the stairs are fixed to the poles arranged vertically.

That is, the present invention is a staircase characterized in that it is configured as follows.
(1) The treads are arranged in a staircase shape, and the end surfaces in the step width direction of the treads are defined as one end surface and the other end surface.
(2) The one end face is connected to a pole arranged in parallel in the vertical direction, and the other end face is fixed to a pole or wall face arranged in parallel in the vertical direction.
(3) The nose side of the end surface of the upper floor tread and the kick side of the end surface of the lower floor tread are fixed to the one pole.
(4) The end surface of the tread is exposed between the poles, and the end surface of the tread is fixed to the pole via a tread mounting bracket .
(5) The tread plate mounting bracket includes a horizontal support plate that can support the lower surface of the end edge portion in the width direction of the tread plate, and a fixed plate that contacts the end surface of the tread plate at both ends in the staircase traveling direction. Configure. The width of the fixed plate is set to be equal to or smaller than the outer diameter of the pole, the fixed plate is fixed to the pole, and an opening is formed between the fixed plates so that the end surface of the tread plate to be attached can be faced. The support plate and the tread plate lower surface are fixed.

Further, another invention is a metal fitting for fixing the end face of a step board arranged in a staircase shape with a pole arranged in a vertical direction, which is constructed as follows. is there.
(1) A horizontal support plate that can support the lower surface of the edge portion in the width direction of the tread plate, and a fixed plate that contacts the end surface of the tread plate is provided at both ends in the staircase traveling direction.
(2) The fixing plate has a width equal to or less than the outer diameter of the pole, and a fixing means for fixing the pole to the pole is formed on the fixing plate.
(3) An opening capable of facing the end surface of the treadle to be attached is formed between the fixed plates.
(4) Forming means for attaching the lower surface of the tread plate to the support plate .

  The pole in the above is mainly a round pipe (hollow material), but a material having an equivalent cross-sectional structure such as a square pipe, a round bar (solid material), a square bar, etc. can also be used.

  In addition, “not visually recognized” in the above includes cases where it is physically hidden and cannot be seen, and cases where it is difficult to see due to the positional relationship.

  In the stairs of the present invention, since one end face of the tread is fixed with a pole and the other end face is fixed with a wall or a pole, the side girders are unnecessary, and the end face of the tread can be seen from between the pole and the pole. The width of the staircase design can be expanded. In addition, because it is supported by a pole without using side girders, the weight of the components used is extremely light, no scaffolding for assembly is required, and work efficiency and safety are improved, enabling assembly by one person. There is an effect to.

  Moreover, since one end surface or the other end surface of the tread is supported by the pole, a heavy side beam (about 60 to 80 kg) can be eliminated. For example, although depending on the width of the stairs and the material and structure of the tread, the load borne by one pole is about 6 kg, and the load borne by one pole and the floor can be dispersed. Therefore, it is not necessary to reinforce the lower surface of the pole, and the construction work of the stairs can be simplified. Therefore, it is effective particularly when a staircase is newly constructed by renovation.

  Also, when using a pole floor holder, there is no need to center the pole on site. Furthermore, the parallel work of poles can be simplified and the stair assembly work can be made more efficient.

(1) step board 22 to be used in the practice of this invention, the stairs width _{W 0,} has a step width _{W 0} direction of the end faces 24, 24a. Further, both sides in the dimension direction in which the treadle is stepped (the direction in which the staircase proceeds) are defined as a nose side 25 and a kick side 25a, respectively.

(2) In the mounting bracket 1 of the present invention, the substantially horizontal support plate 2 that can support the lower surface 23a of the tread 22 is connected to the end surface 24 of the tread 22 or the substantially vertical fixing plates 7 and 7 that can be fixed to the end surface 24a. Install and configure (FIG. 4). The support plate 2 is configured according to the shape of the lower surface in the vicinity of the end surfaces 24, 24a of the staircase 22. Fixed plate 7 is formed with a width _{W 2,} the width _{W 2} is the outer diameter _{D 00} equal to or smaller than that of the pole 28 of the mounting schedule (FIG. 4 (b), the Figure 3 (a)). Further, one fixing plate 7 corresponds to the nose side 25 and the other fixing plate 7 corresponds to the kicking side 25a.
Further, at the edge 3a of the support plate 2, the fixed plate 7, between the fixed plate 7, and notched by a length _{L 2,} to form the notches 5 (FIG. 4 (c), the FIG. 5 (c)). A through hole 6 for fixing to the lower surface 23 a of the tread plate 22 is formed in the support plate 2, and screw holes 10 and 10 for attachment are formed in the fixing plate 7.

(3) Protrusions 33, 33 are provided on the base plate 32 in accordance with the pole mounting position to constitute the pole floor support 31 (FIG. 8). On the lower floor 33, the pole floor holders 31, 31 are fixed according to the positions of the end surfaces 24, 24 a of the tread 22, and the poles 28, 28 are attached to the protrusions 33, 33, and between the adjacent poles 28, 28. The mounting bracket 1 is fixed in order (FIG. 9A). At this time, the fixing plate 7 (step nose side) of the upper mounting hardware 1 and the fixing plate 7 (kick side) of the lower mounting bracket 1 are fixed to one pole 28 (FIG. 8). . Further, in this case, the mounting brackets 1 and 1 can be fixed to all or a part of the poles 28 and 28 in advance.
Subsequently, a tread plate 22 is installed between the mounting brackets 1, 1 arranged facing each other, and the lower surfaces 23 at both ends of the tread plate 22 are fixed to the support plates 2, 2, respectively. If this work is carried out from the lower stage side, the step board 22 attached on the lower stage side can be used as a foothold and the work can be made safe. However, the installation work of the tread board 22 can be performed simultaneously from an arbitrary position or each height. .
Stairs 40 are constructed by fixing the upper ends of the poles 8 and 28 with a swing-fastener 41 (FIG. 7). In this staircase 40, the lower side is a surrounding staircase.

An embodiment of the mounting bracket 1 of the present invention will be described based on the drawings.

(1) A rectangular support plate 2 having a width W ₁ (depth D ₁ ) corresponding to the step width W ₀ of the floor plate 22 to be attached is formed, and the edge of the width W ₁ of the support plate 2 is the edge 3 and the edge 3a And Fixed plates 7 and 7 (width W ₂ , height H ₁ ) are erected on one end side and the other end side of the edge 3 a at right angles to the support plate 2. Width _{W 2} is the outer diameter _{D 00} equal to or smaller than that of the mounting plan of the pole 28 (FIG. 4 (b), the Figure 3 (a)). The height _{H 1} is equal to or smaller form than the thickness _{t 0} of the step board 22 to be used (FIG. 4 (b), the Figure 3 (b)).

Further, at the edge 3a of the support plate 2, the fixed plate 7, between the fixed plate 7, and notched by a length L ₂ to the edge 3 side, to form a notch 5 (FIG. 4 (c), the FIG. 5 (c )). In the support plate 2, through holes 6 and 6 are formed in the vicinity of both ends 4 and 4 (near the edge of the notch 5 on the fixing plates 7 and 7 side). Notch 5 is formed at a distance _{L 2} from the step plate side surface 9 of the fixing plate 7 (i.e. the end surface 24 of step board 22 to be used) (FIG. 4 (c), the Figure 3 (a)).

  The fixed plate 7 has a surface on the pole side (support plate 2 side) as a surface 8 and a surface on the opposite tread plate side as a surface 9. Two fixing screw holes 10 and 10 are formed in the fixing plate 7 vertically. The screw hole 10 forms a large-diameter portion 11 that houses the head of the screw 51 on the surface 9 side on the tread plate side.

  The mounting bracket 1 of the present invention is configured as described above (FIGS. 4 and 5). An opening 12 is defined between the fixed plates 7 and 7.

(2) The mounting bracket 1 is a mounting bracket for the pole 28, but the wall mounting bracket 15 has the same shape as an angle steel in which a fixed plate 18 having the same width is connected to the edge of the support plate 16 at a right angle. A screw hole 19 and a through hole 17 are formed at the same positions as the screw hole 10 and the through hole 6 of the mounting bracket 1 (FIGS. 1 and 2), respectively. The through-hole 17 is a long hole that is long in the width direction of the tread plate 22 to be attached (FIG. 2).

  Next, the construction of the stairs 40 using the mounting bracket 1 will be described. In this embodiment, a case where a staircase 40 that linearly travels from the lower floor 35 to the upper floor 38 is constructed in the case of a one-side pole and one side wall will be described.

The member to use is
A wooden tread 22 having a width W ₀ , a kick length D ₀ and a thickness t ₀
· Outer diameter _{D 00} of the hollow pole 28
・ Mounting brackets 1, 15
・ Pole floor support 31
It is.

  Here, the tread plate 22 is provided with mounting holes (non-penetrating) 26 and 26 in advance so as to coincide with the through holes 6 and 17 of the mounting brackets 1 and 15 (FIG. 1).

  In addition, the pole 28 is formed with screw nuts 29 and 29 by attaching pipe nuts according to the positions of the screw holes 10 and 19 of the mounting brackets 1 and 15, so that welding is performed for fixing to the mounting bracket 1. It can be made unnecessary (FIGS. 1 and 3). Note that the screw hole 29 can be formed directly or by other methods (not shown) without using a pipe nut. Further, if the loosening can be prevented, a pin hole can be used instead of the screw hole 29 (not shown).

  Further, the pole floor holder 31 has protrusions (pole fixing means) 33 and 33 that can be fitted into the hollow side of the pole 28 on the upper surface 32a of the strip-shaped base plate 32 according to the parallel interval of the poles 28. (FIG. 8). The pole floor support 31 can be configured for one pole in which one protrusion 33 is formed on one base plate 32 (not shown).

(1) The pole floor support 31 is fixed to the lower floor 35 at the pole installation position. At this time, the pole floor support 31 may be fixed directly to the lower floor 35 (FIG. 6), but a recess 36 for receiving the base plate 32 is formed, and the surface of the lower floor 35 and the pole floor support 31 are formed. The base plate 32 may be flush with the upper surface 32a (FIG. 8). In this state, the projections 33 and 33 are arranged on the surface of the lower floor 35 according to the installation interval of the poles 28 and 28 (FIG. 8).

(2) Subsequently, the mounting brackets 1 and 1 are fixed between the arranged poles 28 and 28 (FIG. 8). At this time, the fixing plates 7, 7 are applied to the side surfaces of the pole 29, the screws 51 are driven into the screw holes 10 of the fixing plate 7 from the large diameter portion 11 side toward the screw holes 29 of the poles 28, and the fixing plate 7 is It fixes to 28 (FIG. 1, FIG. 3). At this time, since the screw head is housed in the large diameter portion 11, the screw 51 does not protrude from the surface 9 of the fixing plate 7. Further, among the parallel poles 28, 28, the pole 28 in the middle position excluding the poles 28 located at both ends is connected to the fixing plate 7 and the lower side of the upper mounting bracket 1 with respect to one pole 28. The fixing plates 7 of the mounting bracket 1 in the step are respectively fixed. In this state, the poles 28 and 28 are connected via the mounting brackets 1 and 1 so that the handling becomes easy (FIG. 8).
Next, the poles 28 and 28 connected by the mounting brackets 1 and 1 are fixed to the pole floor mounting tool 31 (FIG. 8). At this time, simply inserting the projection 33 of the pole floor fixture 31 into the hollow portion 30 at the lower end of the pole 28 enables easy operation.

  The work of fixing the mounting brackets 1, 1 to the poles 28, 28 is performed by inserting the poles 28, 28 in which the positions of the mounting brackets 1, 1 are preliminarily inserted into the protrusions 33 of the pole floor support bracket 31 one by one. After the poles 28 and 28 are attached in parallel, the mounting brackets 1 and 1 can be attached between the two poles 28 and 28 (not shown).

(3) (1) After, before, or simultaneously with the step (2), the wall 44 is marked according to the position of the tread plate installed on the wall 44, and the mounting brackets 15, 15 are attached to the wall 44. Fix it. At this time, the fixing plate 18 of the mounting bracket 15 is attached to the wall 44, and a screw (screw) 52 is driven and fixed from the screw hole 19 (FIGS. 1 and 2). Similar to the mounting bracket 1, the head of the screw (screw) 52 is accommodated in the large diameter portion 20 and does not protrude from the surface of the fixing plate 18.

(4) With the above operations completed, the mounting brackets 1 and 15 for mounting one tread 22 are arranged facing each other on the side of the wall 44 and the pole 22 (FIG. 9A). )).

(5) Subsequently, the pole 22 side, on the support plate 2, 16 for mounting furniture 1,15 wall 44 side, placing the ends 24,24a side of the width _{W 0} direction of step board 22 (FIG. 1, FIG. 9 ( b)). In this state, the surface 9 of the fixed plate 7 is blocked by the end surface 24 of the tread plate 22 coming into contact therewith. In this state, bolts 46 are driven through the through holes 6 and 17 of the mounting brackets 1 and 15 (from bottom to top) to fix the tread 22 to the mounting brackets 1 and 15 (support plates 2 and 16) (FIG. 9). (C)). Therefore, after the tread plate 22 is attached, there is no possibility that the screw 51 is loosened due to vibration or the like, and even if the screw is loosened, the screw 51 is blocked, so that the screw may come off from the fixing plates 7 and 18. No.
At this time, if the tread 22 is attached from the lower stage, the attaching work of the upper treads 22 and 22 can be performed using the attached tread 22 as a work scaffold. The tread plate 22 can be attached not only from the lower stage but also from the upper stage, from the intermediate stage, or from a plurality of positions at the same time.

(6) At this time, if the distance L between the fixing plates 7 and 18 of the mounting brackets 1 and 15 is longer than the width W _{0 of the} tread plate 22 (FIG. 1B), the tread plate With the end surface 24 of the tread plate 22 close to the pole 28 and the end surface 24 of the tread plate 22 in contact with the fixing plates 7 and 7, wedges 48 and 48 are driven between the end surface 24 a of the tread plate 22 and the fixing plate 18. Adjust the gap (Figure 2). At this time, since the through-hole 17 of the mounting bracket 15 on the wall 44 side is formed as a long hole, the wedge 48 even if the support plate 16 and the tread plate 22 are relatively displaced in the width W ₀ direction. If the number and size of 48 are adjusted, there is no hindrance to the mounting (FIGS. 2B and 2C). If the wedge 48 is used, the heads of the screws 51 and 52 are pushed by the end surface 24 of the tread plate 22 or the wedge 48, which helps to prevent the screws 51 and 52 from loosening.

Further, if the distance L between the fixing plates 7 and 18 of the mounting brackets 1 and 15 is previously formed to be equal to (same or slightly larger) the width W _{0 of the} tread plate 22, the wedges 48 and 48 and the wedge 48 are hidden. No finishing process is required. Even in this case, since the end surfaces 24 and 24a of the tread plate 22 protect the heads of the screws 51 and 52, the screws 51 and 52 can be prevented from loosening depending on the impact of walking.

(7) As described above, the attachment of all the treads 22, 22 is completed, and the staircase 40 is constructed between the lower floor 35 and the upper floor 38 (FIG. 6). Further, the edge on the wall 44 side can be covered with a cover or the like as appropriate so as to hide the wedges 48 and 48 (not shown). In FIG. 6, reference numeral 41 denotes a steady rest that connects the upper ends of the poles 28 and 28 and is supported by the wall 44. Further, 42 is a waist wall on the upper floor, and 43 is a ceiling.

(8) In the staircase 40 constructed in this way, on the pole 28 side, the end surface 24 of the tread 22 can be seen from the opening 12 of the mounting bracket 1 between the poles 28 and 28, and the mounting bracket 1 cannot be seen. Stairs that make use of patterns such as wood grain can be constructed (FIG. 1C). Here, since there is provided a notch 5, the edges 5a, so positioned on the back from the end surface 24 of step board 22 by L _2, equal to not be visible.

  Further, in the construction work, the worker constructs the stairs 40 by using only light members such as the pole floor support 31 for each of the poles 28 or the connected poles 28 and 28 and the tread plate 22 and assembling them in order. Therefore, the construction work of the stairs 40 can be performed even by a small number of people, for example, one person.

(9) Other embodiments

  In the above embodiment, the mounting bracket 15 on the wall 44 side is used, but the mounting bracket 1 can also be used on the wall 44 side (not shown).

  In the above embodiment, one end 24a of the tread plate 22 is attached to the wall 44. However, both end surfaces 24, 24a of the tread plate 22 may be fixed by poles 28, 28 (see FIG. 7). In this case, only the mounting brackets 1 and 1 for the pole are used as mounting brackets. Although the same mounting bracket 1 is used for the edges 24 and 24a of the tread plate 22, the through hole 6 of one mounting bracket 1 can be a long hole such as the through hole 17 of the mounting bracket 15 (see FIG. Not shown).

Moreover, in the said Example, although the staircase which goes straight from the lower floor 35 to the upper floor 38 was demonstrated, it can also be set as the staircase of the structure which combined the surrounding staircase, or the structure of only a surrounding staircase (refer FIG. 7). . In this case as well, the tread 22 is fixed to a pole 28 disposed between the treads 22 and 22a positioned above and below. Therefore, in the case of the tread 22a whose planar shape is not rectangular, the shape is changed according to the shape, and the shape of the support plate 2 of the mounting bracket 1 is changed, and the mounting positions of the fixing plates 7 and 7 on the support plate 2 are changed ( Not shown).
In this case, it is generally preferable in design that the mounting interval between the poles 28 and 28 is constant, so that the interval between the poles 28 and 28 in the surrounding staircase portion is the same as the interval between the treads 22 in the direct direction portion ( FIG. 7). Accordingly, the tread 22a is formed so that the poles 28 and 28 are located at at least two places on the end face. Therefore, the structure of the mounting bracket 1 for the tread 22a is also a structure in which the fixing plates 7 and 7 are attached according to the positions of the support plate 2 and the pole 28 according to the planar shape of the tread 22a (not shown). .

  In the above-described embodiment, the pole floor support 31 has the protrusion 33 that enters the hollow portion of the pole 28 as the pole fixing means. However, the pole fixing means may be formed from a cylindrical body or a recess into which the pole 28 can be inserted. Yes (not shown).

  Further, in the embodiment, since the notch 5 of the mounting bracket 1 is formed, the edge 5a is located at the back and is difficult to see, but a recess for accommodating the support plate 2 of the mounting bracket 1 is formed on the lower surface of the tread plate 22. It can also be formed (not shown). In this case, the edge 5a of the notch 5 is completely hidden and cannot be visually observed.

  In the above embodiment, the steady rest 41 is used, but the upper ends of the poles 28 and 28 can be supported by the ceiling 43 (not shown). Further, the lower ends of the poles 28 and 28 can be directly fixed to the floor 35 on the lower floor without using the pole floor support 31 (not shown).

FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 3C is a right side view in a state where one tread constituting the staircase of the present invention is attached to a pole and a wall. It is an enlarged view showing attachment on the wall side, (a) is a partially enlarged plan view, and (b) and (c) are partially vertical sectional views. It is an enlarged view showing attachment on the pole side, (a) is a partially enlarged plan view, (b) is a partially enlarged front view, and (c) is a partially side view. In the mounting bracket of the present invention, (a) is a front view, (b) is a rear view, (c) is a plan view, and (d) is a bottom view. In the metal fitting of the present invention, (a) is a right side view, (b) is an AA sectional view, and (c) is a BB sectional view. In the straight stairs which supported the tread with the pole and the wall, (a) is a side view, (b) is a front view. It is a partially surrounding staircase supported on both sides by poles, (a) is a plan view and (b) is a side view. It is an enlarged view explaining attachment of a pole, a mounting bracket, and a pole floor holder. (A)-(c) is a partially expanded longitudinal cross-sectional view explaining the assembly of a tread.

Explanation of symbols

1 Mounting bracket (for poles) (tread mounting bracket)
2 Mounting plate support plate 3, 3a Support plate edge 4 Support plate edge 5 Support plate notch 6 Support plate through hole (attachment means to bottom surface of tread plate)
7 Mounting plate fixing plate 8 Fixing plate surface (pole side)
9 Fixing plate surface (tread side)
10 Screw hole 11 of fixing plate Large diameter portion 15 of screw hole of fixing plate Mounting bracket (for wall)
16 Mounting plate support plate 17 Support plate through hole (long hole)
18 Fixing plate of mounting bracket 19 Screw hole of fixing plate (fixing means)
20 Large-diameter portion 22 of fixing plate screw hole Tread plate 23 Tread plate upper surface 23a Tread plate lower surface 24 Tread plate end surface (pole side)
24a End surface of tread (wall side)
25 Tread board nose side 25a Tread board kick side 26 Tread board mounting hole 28 Pole 29 Pole screw hole 30 Pole hollow part 31 Pole floor holder 32 Pole floor holder base board 32a Base board upper surface 33 Pole floor holder Tool projection (pole fixing means)
35 Lower floor 36 Lower floor recess 38 Upper floor 40 Stairs 41 Stabilizer 42 Waist wall 44 Wall 46 Bolt 48 Wedge 51 Screw 52 Screw (screw)

Claims (2)

A staircase characterized as follows.
(1) The treads are arranged in a staircase shape, and the end surfaces in the step width direction of the treads are defined as one end surface and the other end surface.
(2) The one end face is connected to a pole arranged in parallel in the vertical direction, and the other end face is fixed to a pole or wall face arranged in parallel in the vertical direction.
(3) The nose side of the end surface of the upper floor tread and the kick side of the end surface of the lower floor tread are fixed to the one pole.
(4) The end surface of the tread is exposed between the poles, and the end surface of the tread is fixed to the pole via a tread mounting bracket .
(5) The tread plate mounting bracket includes a horizontal support plate that can support the lower surface of the end edge portion in the width direction of the tread plate, and a fixed plate that contacts the end surface of the tread plate at both ends in the staircase traveling direction. Configure. The width of the fixed plate is set to be equal to or smaller than the outer diameter of the pole, the fixed plate is fixed to the pole, and an opening is formed between the fixed plates so that the end surface of the tread plate to be attached can be faced. The support plate and the tread plate lower surface are fixed. A metal plate for fixing the end face of a step board arranged in a staircase with a pole arranged in a vertical direction, and is constructed as follows.
(1) A horizontal support plate that can support the lower surface of the edge portion in the width direction of the tread plate, and a fixed plate that contacts the end surface of the tread plate is provided at both ends in the staircase traveling direction.
(2) The fixing plate has a width equal to or less than the outer diameter of the pole, and a fixing means for fixing the pole to the pole is formed on the fixing plate.
(3) An opening capable of facing the end surface of the treadle to be attached is formed between the fixed plates.
(4) Forming means for attaching the lower surface of the tread plate to the support plate .

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