JP2014040700A - Step for stairs - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a step for stairs for forming cantilever stairs in which it is possible to go up and go down the stairs safely regardless of an angle of a wall part to be installed.SOLUTION: In order to form cantilever stairs, a step can be mounted to a wall surface 1 while preventing front and rear tread parts 5 from being buffered in a planar view, and freely adjusting height positions of neighboring upper and lower tread parts 5. Further, a distal end portion 61 of a reinforcing part 6 which protrudes obliquely forwards from a lower portion 33 of a fixed part 3, is mounted to a support part 4 so as to form a triangle between the fixed part 3 and the support part 4. Therefore, a sufficient strength with respect to a load applied to the tread part 5 can be provided even in a cantilever manner.

Description

  The present invention relates to a staircase step for providing a cantilevered staircase on a wall surface.

  In general, for the stairs provided on the wall surface, in the stairs consisting of a parallel frame, a step suspended from this frame, and a handrail supported by a support column standing on the frame, the above steps can be freely rotated on the frame. In addition, there is disclosed a slope installation stair including a fixing means for supporting the step and preventing the rotation of the step (for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-269882

  However, the staircase steps constituting the conventional staircase form a so-called double-supported staircase that is designed to support both the left and right sides of the step. As the angle increases, the back and forth staircase steps will buffer in plan view, and when going up, the next staircase step will catch your foot, or when going down, the staircase step will have a narrow depth and you will lose your foot. Was a concern.

  The present invention eliminates the above-mentioned concerns and provides a stair step for forming a cantilevered staircase that can safely go up and down regardless of the angle of the wall to be installed. Is.

In order to achieve the above object, the present invention is configured as follows.
In other words, a plurality of steps for staircases according to the present invention are attached to a wall portion, and are steps for forming a cantilevered staircase on the wall portion. The steps for staircase are attached to the wall portion. The support portion protrudes in a cantilevered manner from the upper portion of the fixed portion, with its longitudinal direction facing forward, and a tread plate portion is formed on the upper surface of the support portion, and a triangle is formed between the fixed portion and the support portion. The tip of the reinforcing part protruding obliquely forward from the lower part of the fixed part is attached to the support part as formed.

  Further, in the step for staircase according to the present invention, the support portion and the reinforcing portion are provided so as to be rotatable in the vertical direction with respect to the fixed portion, respectively, and the distal end portion of the reinforcing portion is the protruding direction of the support portion. It is attached to the said support part so that movement is possible with respect to.

  According to the step for staircase of the present invention, a cantilevered staircase is formed, so that the front and back stepboard portions are not buffered in plan view according to the angle of the wall surface to be attached, and adjacent upper and lower stepboard portions. It can be mounted on the wall surface by freely adjusting the height position. Further, the tip of the reinforcing portion protruding obliquely forward from the lower portion of the fixed portion is attached to the support portion so that a triangle is formed between the fixed portion and the support portion, thereby being cantilevered. Even if it is a type | formula, sufficient intensity | strength with respect to the load concerning a tread board part can be provided.

  Further, according to the step for staircase of the present invention, the support portion and the reinforcement portion are provided so as to be rotatable in the vertical direction with respect to the fixed portion, respectively, and the tip end portion of the reinforcement portion is projected from the support portion. Since it is attached to the support portion so as to be movable with respect to the direction, it can be easily attached so that the tread portion is substantially horizontal in accordance with the angle of the wall surface to be attached.

It is a front view of the stairs formed using the step for stairs concerning the present invention. It is the elements on larger scale of FIG. FIG. 3 is a left side view of FIG. 2. It is a left view which shows embodiment of the step for stairs which concerns on this invention. FIG. 5 is a plan view of FIG. 4. FIG. 5 is a bottom view of FIG. 4. FIG. 5 is a front view of FIG. 4. FIG. 5 is a rear view of FIG. 4. It is a left view which shows another embodiment of the step for stairs which concerns on this invention. FIG. 10 is a plan view of FIG. 9.

Next, embodiments for carrying out the present invention will be specifically described with reference to the drawings.
In the drawings, 1 is a wall portion such as a concrete retaining wall, 2 is a step for a staircase that is attached to the wall portion 1 to form a cantilevered staircase, 3 is a fixed portion, 4 is a support portion, and 5 is a tread plate , 6 is a reinforcing part, and the stair step 2 has a support part 4 protruding in a cantilevered manner from the upper part 32 of the fixing part 3 attached to the wall part 1 with its longitudinal direction facing forward. 4 is formed on the upper surface of 4 and a reinforcing part protruding obliquely forward from the lower part 33 of the fixing part 3 so as to form a triangle between the fixing part 3 and the support part 4. 6 is attached to the support 4. In addition, each of the fixing | fixed part 3, the support part 4, and the reinforcement part 6 consists of two steel L angle | corners of the cross-section L arrange | positioned in parallel.

  That is, the fixing portion 3 is composed of two steel angle members having an L-shaped cross section arranged in parallel at a predetermined interval, and is attached to the wall portion 1 by the anchor bolt A. Has been made. Further, the support portion 4 and the reinforcement portion 6 are also composed of the same two L-shaped steel angle members, and the angle members constituting the support portion 4 and the reinforcement portion 6 are fixed portions 3. Are attached to each of the angle members forming two parallel triangles, and the tread plate portion 5 is fixed on the two angle members forming the support portion 4.

  Thus, the step 2 for stairs comprises a pair of a fixing part 3, a supporting part 4 and a reinforcing part 6 each formed by combining two angle members to form a triangle, and A tread plate portion 5 is bridged and fixed with bolts or the like on the upper surface of the support portion 4 protruding in a cantilevered manner from the upper portion 32 of the fixing portion 3 to the front, and one step of the stairs is formed. Is formed. The fixing portion 3 is fixed to the wall portion 1 by inserting anchor bolts A into fixing holes 31 provided at a total of four locations, two at the top and two at the bottom of the angle member. A plurality of steps 2 for staircases are fixed to the wall 1 at a predetermined interval to form a cantilevered staircase.

  Further, the support portion 4 and the reinforcement portion 6 are provided so as to be rotatable in the vertical direction with respect to the fixed portion 3, respectively, and the distal end portion 61 of the reinforcement portion 6 is in the protruding direction of the support portion 4. It is attached to the said support part 4 so that movement is possible. That is, the base end portion 41 of the support portion 4 and the upper portion 32 of the fixing portion 3, and the lower portion 33 of the fixing portion 3 and the base end portion 62 of the reinforcing portion 6 are pivotally supported by the bolt B1, respectively. And the tip portion 61 of the reinforcing portion 6 and the tip portion 42 of the support portion 4 are respectively fixed by fixing bolts B2 and are attached to the tip portion 42 of the support portion 4. The portion for fixing the tip portion 61 of the reinforcing portion 6 can be shifted by a plurality of through holes 43 into which the fixing bolts B2 provided along the longitudinal direction can be inserted. Corresponding to the angle of the wall part 1, the support part 4 and the reinforcing part 6 are respectively rotated in the vertical direction with respect to the fixed part 3, so that the tread plate part 5 can be arranged substantially horizontally. Has been made.

  Further, in the present embodiment, the stair step 2a to which the short tube 45 capable of inserting and fixing the support column is attached to the tip 44 of the support portion 4 is provided every five steps of the stair step 2; A support column 7 is inserted and fixed to the short tube 45, and a four-stage horizontal beam 8 is attached to the support column 7 in the vertical direction to form a fence body S. Thereby, it is possible to prevent the user of the stairs from falling. In the step 2a for stairs, one support portion 4 is longer than the other support portion 4 and protrudes from the tread plate portion 5. A short tube 45 is attached to the tip 44 of the protruding support portion 4.

  In the stairs shown in FIG. 1, the user of the stairs goes up and down in an oblique direction with respect to the wall 1, but the present invention is not limited to this. It may be one that goes up and down in the direction.

  Of the four horizontal beams 8, the uppermost horizontal beam 8 is green, and the column cap attached to the upper end of the column 7 emits green light. A guide mark or a route for guidance may be represented.

  Furthermore, in the above embodiment, the fixed portion 3, the support portion 4, and the reinforcing portion 6 are each composed of two angle members, but are not limited to this, for example, composed of a plate material, An arbitrary material can be used without departing from the gist of the present invention, such as a combination of an angle material and a plate material.

  The step 2 for staircase of the form illustrated above includes an anchor bolt A for fixing the fixing portion 3 to the wall portion 1, a base end portion 41 of the support portion 4, an upper portion 32 of the fixing portion 3, and a lower portion 33 of the fixing portion 3. A bolt B1 that pivotally supports the base end portion 62 of the reinforcing portion 6, a fixing bolt B2 that fixes the distal end portion 61 of the reinforcing portion 6 to the distal end portion 42 of the support portion 4, and a tread plate portion 5 on the upper surface of the support portion 4. By removing these bolts, such as bolts to be fixed, they can be disassembled into the fixing part 3, the support part 4, the tread part 5, and the reinforcing part 6, so the volume during transportation is small, the transportation efficiency is very excellent, and the site The assembly workability is good. Furthermore, when each of the above members is damaged, it is possible to recover by replacing only the damaged member, so that maintenance and maintenance are excellent.

DESCRIPTION OF SYMBOLS 1 Wall part 2, 2a Stair step 3 Fixing part 31 Fixing hole 32 Upper part 33 Lower part 4 Support part 41 Base end part 42 Front end part 43 Through-hole 44 Tip 45 Short pipe 5 Tread board part 6 Reinforcement part 61 Front end part 62 Base end Part 7 Post 8 Horizontal beam A Anchor bolt S Fence body B1 Bolt B2 Fixing bolt

Claims (2)

  A plurality of steps for attaching to a wall portion to form a cantilevered staircase on the wall portion, wherein the step portion for the staircase has a support portion at an upper portion of a fixed portion attached to the wall portion; The lower part of the fixed part protrudes in a cantilever shape with the longitudinal direction facing forward, and a tread plate part is formed on the upper surface of the support part, and a triangle is formed between the fixed part and the support part. A stair step, wherein a tip portion of a reinforcing portion protruding obliquely forward is attached to the support portion.   The support portion and the reinforcement portion are provided so as to be rotatable in the vertical direction with respect to the fixed portion, respectively, and the tip end portion of the reinforcement portion is movable in the protruding direction of the support portion. The stair step according to claim 1, wherein the step is attached.

Images