JP2007046332A - Vertical handrail device for spiral stairs - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical handrail device for spiral stairs, which is arranged at a spiral portion of the spiral stairs including oblique stairs, and contributes to improved safety of the user who climbs up and down the stairs, near a spiral center. <P>SOLUTION: The vertical handrail device for the spiral stairs, is arranged near the spiral center 2 of the spiral portion 1 of the spiral stairs including the oblique stairs 1a, 1b. The handrail device has vertical handrails 3 protruded from the spiral center 2 of the spiral portion 1 on both sides of the same in a manner securing a space between the same. Herein a partition wall 5 is erected between rectangular stairs 4 on both sides of the spiral portion 1, and an end face 6 of the partition wall 5 is located near the spiral center 2 of the spiral portion 1, and both the vertical handrails 3 are arranged along ridge lines 61 of both side angles of the end face 6 of the partition wall 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vertical handrail device for a staircase provided in the vicinity of the center of a periphery of a staircase having an oblique step.

  Conventionally, as shown in FIG. 7, a vertical handrail device for a staircase in which a vertical handrail 3 is provided in the vicinity of a center 2 of a periphery 1 of a staircase having an oblique step is known (Patent Document 1). : JP-A-8-27988). In this case, the turning part 1 is composed of an oblique step, but some turning stairs are composed of a landing where the turning part is flat. In the case of a staircase where the surrounding part is a flat landing, the posture is stable and safe because it does not move up and down at the turning part, but it may be difficult to secure a space by design because it requires a flat landing. On the other hand, as described above, in the surrounding staircase in which the surrounding portion 1 is an oblique step, the surrounding portion 1 is accommodated in a compact manner, so that it is easy to secure a space by design.

  And as mentioned above, safety is also ensured by adopting the vertical handrail device for the rotating staircase in which the vertical handrail 3 is provided in the vicinity of the rotation center 2 of the rotating portion 1 of the rotating staircase. That is, in this kind of staircase, the posture is not stable because it goes up and down at the turning part 1, and the tread surface is smaller around the center 2 side. However, in the case of the above, the vertical handrail 3 is gripped when raising and lowering the vicinity of the center 2 of the periphery 1. Can be moved up and down, ensuring safety.

Further, in the above, a partition wall 5 is provided between the straight step portions 4 on both sides of the surrounding portion 1, and an end portion 6 of this partition wall 5 is located near the surrounding center 2 of the surrounding portion 1. The vertical handrail 3 is provided in the vertical direction along the end 6 of the partition wall 5. In this case, a notch 10 is formed in substantially the upper half of the end 6 of the partition wall 5, and the vertical handrail 3 is provided in the notch 10 so as not to interfere. Further, a horizontal handrail 8 is provided on the outer wall surface of the turning portion 1, and the outer peripheral side away from the turning center 2 of the turning portion 1 can be moved up and down by grasping the horizontal handrail 8.
JP-A-8-27988

  However, in the conventional vertical handrail device for staircase steps disclosed in Patent Document 1, the vertical handrail 3 is hidden by the end portion 6 of the partition wall 5 when entering the turn portion 1 from the straight step portion 4. The timing of gripping the vertical handrail 3 is delayed, and the hand gripped from the vertical handrail 3 must be released quickly when going from the turn part 1 to the straight part 4. The range in which the body can be supported by holding the vertical handrail 3 during lifting is limited to be short and safety is not sufficiently ensured.

  The present invention has been made in view of the above-described background art, and its problem is that a vertical type for a staircase in which the safety at the time of raising and lowering the vicinity of the center of the surrounding staircase having an oblique step is improved. A handrail device is provided.

  In order to solve the above problems, the vertical handrail device for a staircase of the present invention is provided in the vicinity of the center of the periphery of the peripheral staircase having an oblique step, and protrudes to both sides from the center of the periphery of the periphery. At each of the positions, vertical handrails are arranged with a space between them.

  In the vertical handrail device for staircases of the present invention, the vertical handrail has a space between each other at positions protruding from the center of the surrounding portion to both sides in the vicinity of the center of the surrounding portion of the staircase having an oblique step. Because it is arranged open, it is possible to hold one vertical handrail in advance when entering the turning part from the straight step part, and if it is changed to the other vertical handrail in the middle of the turning part When going from the surrounding part to the straight part, the other vertical handrail can be held for a long time, and as a whole, the body is supported by grasping the vertical handrail when moving up and down around the center of the surrounding part. A long range is ensured, and safety is improved.

  FIGS. 1 to 3 and FIG. 4 (a) show a vertical handrail device for turning stairs which is an embodiment corresponding to all claims 1 to 4 of the present application. As shown in FIGS. 1 and 2, the vertical handrail device for the staircase of this embodiment is provided in the vicinity of the rotation center 2 of the rotation portion 1 of the rotation staircase having the oblique steps 1a and 1b. A vertical handrail 3 is arranged at a position protruding from the center 2 around the part 1 to both sides with a space between each other. In this case, the two vertical handrails 3 are arranged in parallel so as to be substantially vertical and substantially parallel to each other.

  In the vertical handrail device for the staircase of this embodiment, a partition wall 5 is provided between the straight step portions 4 on both sides of the turn portion 1, and the end 6 of the partition wall 5 is positioned near the turn center 2 of the turn portion 1. Both vertical handrails 3 are arranged along ridge lines 61 at both corners of the end 6 of the partition wall 5. Further, as shown in FIG. 4A, a vertical handrail 3 is provided at each position protruding diagonally outward from the position of the ridgeline 6 on both corners of the end 6 of the partition wall 5, so that both vertical handrails 3 are provided. The space interval dimension L is set to be larger than the end portion 6 thickness dimension T of the partition wall 5. Also, as shown in FIG. 3, bracket portions 7 are provided at both upper and lower end portions of the vertical handrail 3, and both bracket portions 7 are fixed to the surface 51 near the end portion 6 of the partition wall 5, so that the vertical handrail is 3 is provided on both sides of the end 6 of the partition wall 5.

  Hereinafter, the vertical handrail device for the staircase of this embodiment will be described in more detail. The vertical handrail device for the staircase of this embodiment is constructed as an attached structure of the staircase in a general residential building. As shown in FIG. 1, a horizontal handrail 8 is provided on the outer wall surface of the turning portion 1, and the horizontal handrail 8 can be lifted and lowered along the outer peripheral side away from the turning center 2 of the turning portion 1. it can. Further, inner horizontal handrails 9 are also attached to both surfaces 51 of the partition wall 5 that partitions between the straight step portions 4 on both sides of the surrounding portion 1, and the straight step portion 4 is attached to the partition wall 5 by grasping the inner horizontal handrail 9. Can be moved up and down.

  A notch 10 is formed in the upper half of the end 6 of the partition wall 5, and both vertical handrails 3 are arranged so that the notch 10 is located within the space interval between the two. It is easy to insert a hand and grasp it, and it is easy to change both vertical handrails 3, and both vertical handrails 3 are not easily obstructed at the end 6 of the partition wall 5 and fit nicely. In this case, the two vertical handrails 3 are disposed along the ridge lines 61 at both corners of the notch 10 at the end 6 of the partition wall 5. In addition, as shown in FIG. 2, the turning section 1 has a four-stage configuration of a combination of a 30-degree oblique stage 1a and a 60-degree oblique stage 1b, and the wide 60-degree oblique stage 1b is a landing area. You can play a role and turn your body in this flat place.

  As shown in FIGS. 3 and 4A, both vertical handrails 3 are made of a bar material having a circular cross section, and are made of a wooden round bar material, a metal pipe material, or the like. In the vicinity of both upper and lower ends of the vertical handrail 3, rod-like bracket portions 7 are similarly coupled, and the base ends of both bracket portions 7 are fixed to the surface 51 near the edge 6 ridgeline 61 of the partition wall 5. Both vertical handrails 3 project from both sides of the end portion 6 of the partition wall 5. In this case, as shown in FIG. 4 (a), the bracket portions 7 on both sides are projected from the end portion 6 of the partition wall 5 so as to expand outward in both sides in a substantially inverted C shape, A space interval dimension L between both vertical handrails 3 is set to be larger than an end portion 6 thickness dimension T of the partition wall 5.

  Therefore, as shown in FIG. 3, between the upper and lower bracket portions 7, a hand can be inserted between the edge 6 ridge line 61 of the partition wall 5 and the vertical handrail 3, and the vertical handrail 3 can be gripped. Here, as shown in FIG. 4A, a large space (dimension S) for inserting the hand between the end 6 ridgeline 61 of the partition wall 5 and the vertical handrail 3 by the bracket portion 7. Is ensured, the vertical handrail 3 can be easily grasped, and both vertical handrails 3 can be easily changed.

  That is, as shown in FIG. 4 (b), when the vertical handrails 3 are projected from the end 6 of the partition wall 5 without inclining to both sides, the space interval between the vertical handrails 3 is measured. If the space interval dimension L is set small to improve this, L becomes large and difficult to change, and the end 6 of the partition wall 5 becomes obstructive and the edge 6 ridgeline 61 and the vertical handrail 3 The space between them (dimension S) becomes small, and it becomes difficult to insert the hand into this space, making it difficult to grip both vertical handrails 3. In addition, as shown in FIG. 4C, when both vertical handrails 3 are projected from the end 6 of the partition wall 5 without being inclined forward and outward, the space interval dimension between the two vertical handrails 3. L becomes smaller, the space (dimension S) between the edge 6 ridgeline 61 of the partition wall 5 and the vertical handrail 3 also becomes smaller, and it becomes difficult to insert the handtips, making it difficult to grip both the vertical handrails 3.

  Therefore, in the vertical handrail device for the staircase of this embodiment, the vertical handrail is located at each of the positions protruding from the rotation center 2 to both sides in the vicinity of the rotation center 2 of the rotation staircase 1 having the oblique steps 1a and 1b. Since the handrail 3 is disposed with a space interval dimension L between each other, when entering the turn part 1 from the straight step part 4, it is possible to hold one vertical handrail 3 from an early stage, By shifting to the other vertical handrail 3 in the middle of the turning section 1, when the head 1 comes out from the turning section 1 to the straight section 4, the other vertical handrail 3 can be held for a long time. As a result, when ascending and descending the vicinity of the center 2 of the rotating portion 1, it is possible to secure a long time for holding the body by grasping the vertical handrail 3 and safety is improved. In addition, the straight step portion 4 that is moved up and down by grasping the inner horizontal handrail 9 can be moved up and down more smoothly by changing to the first vertical handrail 3 earlier.

  Further, a partition wall 5 is provided between the stepped portions 4 on both sides of the surrounding portion 1, and the structural strength and safety as the surrounding steps are improved. Here, the end 6 of the partition wall 5 is positioned in the vicinity of the center 2 of the surrounding portion 1, and the both ends of the vertical direction along the ridge lines 61 at both corners of the end 6 of the partition wall 5 are vertical. The mold handrail 3 is arranged with good appearance. In addition, in this case, the vertical handrail 3 is disposed at each position protruding diagonally outward from the position of the ridge line 61 on both corners of the end 6 of the partition wall 5, and the space interval dimension L between the two vertical handrails 3 is Since it is set to be larger than the thickness T of the end portion 6 of the partition wall 5, the two vertical handrails 3 can be easily grasped, and the grip can be easily changed.

  Further, in the vertical handrail device for staircases of this embodiment, bracket portions 7 are provided at both upper and lower end portions of the vertical handrail 3, and both bracket portions 7 are fixed to the surface 51 near the end portion 6 of the partition wall 5. Thus, the vertical handrails 3 are provided with a space interval dimension L between them, projecting on both sides of the end 6 of the partition wall 5, and securely supported and fixed. In this case, a large space (dimension S) for inserting the hand between the end 6 ridgeline 61 of the partition wall 5 and the vertical handrail 3 is ensured between the upper and lower bracket portions 7. It becomes easier to grip the handrail 3.

  5 and 6 show a vertical handrail device for turning stairs which is another embodiment corresponding to all of claims 1 to 4 of the present application. In the vertical handrail device for surrounding stairs of this embodiment, as shown in FIG. 5, the surrounding portions 1 have a six-stage configuration with diagonal steps 1a of 30 degrees. As shown in FIG. 6, the upper and lower end portions of the vertical handrail 3 are bent in a substantially L shape, and the bent portions are integrally formed as a bracket portion 7. Other than that, the configuration is the same as in the above embodiment, and the same effects as in the above embodiment are achieved.

The perspective view which shows the vertical handrail apparatus for surrounding stairs which is one Embodiment of this invention. The schematic plan view which shows the vertical handrail apparatus for the same staircase. The side view which shows the vertical handrail apparatus for the same staircase. (A) is principal part sectional drawing which shows the vertical handrail apparatus for the same staircase, (b), (c) is principal part sectional drawing which illustrates each different form from which the protrusion structure of a vertical handrail differs. The schematic plan view which shows the vertical handrail apparatus for surrounding stairs which is another embodiment of this invention. The side view which shows the vertical handrail apparatus for the same staircase. The perspective view which shows the vertical handrail apparatus for surrounding stairs which is a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Around part 1a, 1b Diagonal step 2 Around center 3 Vertical handrail 4 Direct step part 5 Partition wall 51 Partition wall surface 6 Partition wall edge 61 Ridge line 7 Bracket part L Space interval dimension T Partition wall end thickness dimension

Claims (4)

  A vertical handrail device for a staircase provided near the center of the periphery of a staircase having an oblique step, with a vertical handrail between each position protruding from the center of the periphery to each side. A vertical handrail device for surrounding stairs that is open and arranged.   A partition wall is provided between the straight steps on both sides of the surrounding part, and the end of this partition wall is located near the center of the surrounding part. The vertical handrail device for a staircase according to claim 1, further comprising a handrail.   Vertical handrails are installed at each position protruding diagonally outward from the ridge line positions on both corners of the end of the partition wall, and the distance between the vertical handrails is set to be larger than the end wall thickness of the partition wall The vertical handrail device for a staircase according to claim 2, wherein:   The brackets are provided at both upper and lower ends of the vertical handrail, both brackets are fixed to the surface near the end of the partition wall, and the vertical handrail protrudes from both sides of the end of the partition wall. 3. A vertical handrail device for staircases according to 3.

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