JP2019019485A - Slope step and slope staircase using the same - Google Patents

Abstract

To easily form a suitable staircase while flexibly coping with the state of a slope.SOLUTION: In each of slope steps 11 fixed directly or indirectly to a slope 13 one by one, a fixed part 32 for fixing is provided below a tread part 31 having a tread face 31a. Between the tread part 31 and the fixed part 32, there is provided an angle variable holding part 33 for adjusting an angle formed by the tread part and the fixed part and holding an angle of the tread face 31a with respect to the slope 13 at a desired angle. The slope steps 11 are arranged side by side to form a slope staircase 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a slope step for forming a stair on a slope, and more particularly to a slope stair that can be installed one step at a time.

  As the slope step, there is one disclosed in Patent Document 1 below. This is a prefabricated staircase that is configured by connecting a plurality of step members. In other words, the step member has a tread plate and a kick plate perpendicular to the tread surface of the tread plate, and the slope staircase is configured to be connected to the lower end of the kick plate at the tip of the tread plate. It is fixed to the surface using a steel bar.

  The staircase having such a configuration has a low degree of freedom in installation because the step members must be connected to each other. For example, if it is difficult to adapt to the shape and angle of the slope, or if it is unavoidable even if there is a bad place in part of the installation location, separate work such as processing the slope is required. Necessary.

Registered Utility Model No. 3184183

  The main object of the present invention is to make it possible to easily form steps according to the state of the slope.

  Means for this is a slope step that is fixed directly or indirectly to the slope, and includes a fixing portion for fixing below the tread portion having the tread surface, and the tread plate portion and the fixed portion. A slope step is provided with a variable angle holding portion that adjusts the angle formed between the two portions to maintain the angle of the tread surface with respect to the slope.

  The slope steps of this configuration can be fixed one by one, and the variable angle holding part between the tread plate part and the fixed part appropriately changes the angle between the tread board part and the fixed part, The tread is held in a desired posture according to the state.

  According to the present invention, the stairs can be easily formed even if the slope condition is bad.

Schematic configuration diagram of slope steps and slope stairs. The side view of the slope staircase which concerns on an example. The perspective view of the slope step shown in FIG. The disassembled perspective view of the slope step shown in FIG. The front view of the decomposition | disassembly state of a one-way variable holding | maintenance part. The front view of the angle change state of a one-way variable holding | maintenance part. FIG. 3 is a partially enlarged view of FIG. 2. The side view of the slope step shown in FIG. The front view of the decomposition | disassembly state of a one-way variable holding | maintenance part. The front view of the angle change state of a one-way variable holding | maintenance part. The front view of the decomposition | disassembly state of the angle variable holding | maintenance part which gave the unidirectional variable holding | maintenance part shown in FIG. 5 and the unidirectional variable holding | maintenance part shown in FIG. The disassembled perspective view of the slope step incorporating the angle variable holding | maintenance part of FIG. The side view of the slope step of FIG. The side view of the slope step of FIG. The side view of the slope step which concerns on another example. The side view of the slope step which concerns on another example. The side view which shows the connection aspect of a stair member. The side view which shows the connection aspect of a stair member. The perspective view which shows the other example of a fixing | fixed part. The side view of the slope staircase which concerns on an example. FIG. 21 is a one-side cross-sectional plan view of the footboard portion of FIG. 20. The partial cross section front view which shows the decomposition | disassembly state of the slope step of FIG. FIG. 21 is a cross-sectional view of the support shaft portion of FIG. 20. The disassembled perspective view of an omnidirectional variable holding | maintenance part. Sectional drawing which shows the effect | action of a washer member and an interposed member. The top view of the tread board part which shows the example provided with the shaft attachment member. The side view which shows the example provided with the shaft attachment member. The side view which shows the example provided with the shaft attachment member. The one-side cross-sectional top view of the footboard part which concerns on another example. The side view which shows the other fixed aspect of a staircase axis. The side view of the slope step which concerns on another example.

  An embodiment for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of a slope step 11 and a slope step 12 using the slope step 11. The slope step 11 is made of a highly rigid material such as a metal, and can be directly or indirectly fixed to the slope 13 one by one. The slope step 11 is provided with a fixing portion 32 for fixing below the tread plate portion 31, and the angle between the tread plate portion 31 and the fixing portion 32 is adjusted to adjust the angle of the tread plate portion 31 with respect to the slope surface 13. An angle variable holding portion 33 that maintains the angle of the tread surface 31a is provided.

  The tread board portion 31 has a plate shape with a size on which one or both feet of a human body can ride, and the upper surface is a tread surface 31a. On the tread surface 31a, an appropriate unevenness for preventing slipping or the like, and a notch having an appropriate shape for reducing the weight are formed as necessary. Below the tread surface 31 a of the tread plate portion 31, a hanging portion 31 b that extends downward and supports the tread surface 31 a is formed.

  The fixing portion 32 is fixed to the slope 13 or an appropriate member attached to the slope 13 and is appropriately selected depending on the object to be fixed, for example, with a fitting structure, a fastening structure using an anchor bolt, an insertion structure, or the like. It is formed.

  The angle variable holding unit 33 is a one-way variable holding unit 33a (see FIG. 2) that can change the angle in the front-rear direction, or an omnidirectional variable holding unit 33b (see FIG. 20) that can change the angle in the front-rear direction and the left-right direction. It can be. Here, the “front-rear direction” refers to a traveling direction for a person who goes up and down the slope staircase 12. The variable angle holding portion 33 can be configured by a joint that can change the angle, an angle fixing structure, and the like.

  It is preferable that the variable angle holding portion 33 and the fixing portion 32 described above are functionally independent. Functionally independent means that the angle variable holding part 33 having the function of changing and holding the angle and the fixing part 32 having the function of fixing to the slope 13 or the like are influenced by the other when the one function is exhibited. Say nothing. That is, the function that the angle variable holding part 33 must be in some state when the fixing part 32 is fixed, or the fixing part 32 must be placed in a specific situation when the angle variable holding part 33 is operated. In this state, they are not affected by each other. If comprised in this way, fixation of the fixing | fixed part 32 and operation of the angle variable holding | maintenance part 33 can be performed separately, for example, after fixing the fixing | fixed part 32, operation of the angle variable holding | maintenance part 33 is carried out, or conversely an angle variable holding | maintenance part Since the fixing portion 32 can be fixed after determining the angle 33, the operation can be easily and reliably performed according to the situation.

  The slope step 11 will be described in more detail below.

  First, as shown in FIG. 2, the fixing portion 32 is fixed to a member fixed along the slope 13, and the angle variable holding portion 33 is a one-way variable holding portion 33a. explain. The member attached to the slope 13 is a stepped shaft 14 made of a long square steel pipe, and is appropriately fixed by a fastening structure using an anchor bolt 15 as shown or an insertion structure (not shown). A stair shaft 14 having a predetermined length is prepared in advance, and the stair shaft 14 having a necessary length is added or cut according to the situation at the site.

  FIG. 3 is a perspective view of the slope step 11. As shown in this figure, the tread plate portion 31 of the slope step 11 includes a rectangular plate-like plate member 35 having a tread surface 31a on the upper surface and the above-described hanging portion 31b formed at the center of the lower surface of the plate member 35. It has. The drooping portion 31b has a strip-like plate shape. The direction of the hanging portion 31 b is a direction extending in parallel with the short side of the plate member 35. In this example, the direction in which the short side of the plate material 35 extends, in other words, the direction in which the plate material 35 is viewed as a horizontal rectangle is the front-rear direction, and the angle is changed by the angle variable holding portion 33. You may comprise so that the direction of the hanging part 31b may be rotated 90 degree | times to a horizontal direction, and the board | plate material 35 may be used vertically long. In this case, the direction in which the long side of the plate member 35 extends is the front-rear direction. The plate member 35 may have a shape other than a rectangular shape in plan view, such as a square, a circle, or an oval.

  Ribs 35a are formed on the back surface of the plate member 35 to reinforce the plate member 35 and the hanging portion 31b. Further, the notch 35b formed in the plate member 35 is a notch 35b that serves as both weight reduction and slip prevention.

  The fixed portion 32 has a structure that is fitted and tightened to the staircase shaft 14. That is, it is formed in a gate shape that fits on the stepped shaft 14 having a square cross section, and has an upper plate 32a and left and right side plates 32b. A plurality of through holes 32c for inserting the fixing bolts 16 are formed in the left and right side plates 32b. The fixing bolt 16 penetrates the step shaft 14, and a nut 16a is screwed to the tip.

  A plurality of fixing holes 14 a are formed on a straight line corresponding to the through hole 32 c of the fixing portion 32 in the staircase shaft 14. The fixing hole 14a may be a round hole or a long hole as indicated by an imaginary line so that the position can be adjusted.

  On the upper plate 32a of the fixed portion 32, a plate-like standing piece 32d that constitutes a part of the variable angle holding portion 33 is formed. The standing pieces 32d are provided in parallel with the side plate 32b, and two pieces are formed at an appropriate interval. Between these standing pieces 32d, the angle variable holding portion 33 is formed by holding the lower end portion of the hanging portion 31b of the tread plate portion 31.

  As shown in FIG. 4, a cylindrical spacer 36 is interposed between the standing piece 32d and the hanging portion 31b, and a coupled state is obtained in which the bolt 37 and the nut 37a can rotate. That is, the bolt 37 is a pivot shaft 51 that constitutes the one-way variable holding portion 33a as the variable angle holding portion 33, and the standing piece 32d and the hanging portion 31b face each other and extend in the lateral direction. A plurality of vertical support plates 52 and 53 that rotate relative to each other about the bolt 37.

  An adjustment hole group 54 is formed in the standing piece 32d and the hanging part 31b for changing and holding the angle. 2 to 4 and other drawings, the adjustment hole group 54 is drawn with a virtual line for convenience.

  The adjustment hole group 54 is configured as shown in FIG. In other words, the upright pieces 32d and the hanging portions 31b as the vertical support plates 52 and 53 are a plurality of pieces that match when the tread plate portion 31 and the fixing portion 32 are at a necessary angle on a concentric circle with the pivot shaft 51 as the center. The adjustment holes 55 and 56 are formed, and a fixed shaft 57 is provided to be inserted into the matched adjustment holes 55 and 56. The fixed shaft 57 is constituted by a bolt, and is held in the adjustment holes 55 and 56 by screwing a nut 57a.

  There are two types of adjustment holes 55, 56. One adjustment hole group 54 a has a reference-side adjustment hole 55, and the other adjustment hole group 54 b has an adjustment-side adjustment hole 56. The adjustment hole 55 on the reference side is drawn on the left side of FIG. This may be provided on either of the vertical support plates 52 and 53 (the standing piece 32d and the hanging portion 31b), but is preferably provided on the standing piece 32d.

  The adjustment hole 55 on the reference side is disposed on two concentric circumferences a and b having different diameters around the center of the shaft hole 54c through which the pivot shaft 51 is inserted. The adjustment hole 55 on the circumference “a” having a large diameter has two axes that intersect with the longitudinal axis y extending in the height direction of one vertical support plate 52 and two that intersect with the horizontal axis x extending in the width direction. A total of four positions across the center of the hole 54c are formed at an angle of 90 degrees. The adjustment hole 55 on the circumference b with a small diameter is an inner circumference side position of one of the two adjustment holes 55 on the horizontal axis x on the circumference a with a large diameter (left side of the vertical axis y in FIG. 5). One is formed.

  As shown on the right side of FIG. 5, the adjustment-side adjustment hole 56 has a predetermined length from the vertical axis y or the horizontal axis x on the two circumferences a and b with different diameters that line up the reference-side adjustment hole 55 described above. It is formed at an angular position. The predetermined angle is set according to a desired angle within a desired angle adjustment range. In the illustrated example, the angle can be adjusted by 5 degrees within a range of 25 to 60 degrees. That is, eight adjustment holes 56 of 25 degrees, 30 degrees, 35 degrees, and 60 degrees are formed. The arrangement of the adjustment holes 56 is appropriately made according to conditions such as the size of the circumference, the size of the adjustment holes 56, the number of the adjustment holes 56 having the same angle, etc. An example shown in FIG. It is as follows.

  In FIG. 5, the number of the adjustment holes 56 of the same angle is one, and the position of the adjustment holes 56 when the vertical support plate 53 having the adjustment-side adjustment holes 56 relatively rotates in the right direction indicated by the arrow d1 in FIG. Is shown. Specifically, out of the four sections divided by the horizontal axis x and the vertical axis y, on the circumference a having a large diameter, the horizontal axis x is on the right side of the vertical axis y, and the opposite arrow from the horizontal axis. The adjustment holes 56 are formed at two locations which are 30 degrees and 55 degrees in the direction (left direction). On the circumference a having a large diameter, an adjustment hole 56 is formed at two positions above the horizontal axis x and on the left side of the vertical axis y, which are 25 degrees and 50 degrees in the opposite arrow direction from the vertical axis. On the circumference a having a large diameter, adjustment holes 56 are formed at two locations below the horizontal axis x and on the left side of the vertical axis y, which are 35 degrees and 60 degrees in the opposite arrow direction from the horizontal axis x. On the circumference a having a large diameter, an adjustment hole 56 is formed at one position below the horizontal axis x and to the right of the vertical axis y at 40 degrees from the vertical axis y in the counter-arrow direction. An adjustment hole 56 is formed at one location on the circumference b with a small diameter below the horizontal axis x and on the left side of the vertical axis y at 55 degrees from the horizontal axis x in the counter-arrow direction. This is because the adjustment hole 55 on the circumference b having a small diameter among the adjustment holes 55 on the reference side is replaced with the vertical axis y of the two adjustment holes 55 in the width (lateral) direction on the circumference a having a large diameter. This is because the formation position can be changed depending on the position of the adjustment hole 55 on the reference side.

  In the vicinity of these adjustment holes 56, for example, “25 degrees” as shown in the figure, an appropriate identification code 56 a that indicates how many holes are provided may be attached.

  FIG. 6 shows the angle adjustment state of the vertical support plates 52 and 53 having such an adjustment hole group 54, that is, the standing piece 32d and the hanging portion 31b. FIG. 6A shows an example in which the angle is 25 degrees, which is the smallest angle in the adjustment range. That is, the adjustment hole 55 located on the upper side of the vertical axis y in the reference-side adjustment hole 55 and the vertical axis y of the adjustment-side adjustment hole 56 are 25 degrees in the direction opposite to the arrow d1 direction (see FIG. 5). The adjustment holes 56 formed at the positions of the vertical support plates 52 and 53 (the standing piece 32d and the hanging portion 31b) are set to 25 by holding the fixed shaft 57 and fastening the nut 57a thereto. Held every time.

  FIG. 6B shows an example in which the maximum angle is 60 degrees in the adjustment range. That is, the adjustment hole 55 located on the left side of the horizontal axis x in the reference side adjustment hole 55 and 60 degrees from the horizontal axis x in the adjustment side adjustment hole 56 in the direction opposite to the arrow d1 (see FIG. 5). The adjustment holes 56 formed at the positions of the vertical support plates 52 and 53 (the standing piece 32d and the hanging portion 31b) are adjusted to 60 degrees by holding the fixed shaft 57 and fastening the nut 57a thereto. Held every time.

  As described above, when the angle formed by the vertical support plates 52 and 53 (the standing piece 32d and the hanging part 31b) is changed in increments of 5 degrees from 25 degrees to 60 degrees, matching adjustment holes 55 and 56 are formed. . Such an angle variable holding portion 33 is formed on the standing piece 32d and the hanging portion 31b so that the angle adjustment direction is appropriate in relation to the tread plate portion 31.

  FIG. 7 shows an enlarged view of the slope step 11 shown in FIG. The angle variable holding portion 33 of the slope step 11 is an example in which the angle formed by the standing piece 32d and the hanging portion 31b is held at 55 degrees. Thus, the slope step 11 can set the angle of the tread surface 31a of the tread plate portion 31 to a predetermined angle regardless of the angle of the slope 13 such as horizontal. As shown in FIG. 8, the angle adjustment of the tread surface 31 a performed while holding the fixed shaft 57 may be performed before or after the fixing portion 32 is fixed to the staircase shaft 14. Any of them may be used. The step shaft 14 may be fixed before the slope step 11 is fixed or after the slope step 11 is fixed.

  As described above, the angle variable holding portion 33 can be adjusted in increments of 5 degrees, and in order to enable finer angle adjustment, in the formation of the adjustment hole group 54 having the above-described configuration, instead of in increments of 5 degrees. You may comprise so that it can adjust in steps of 3 degrees, steps of 2 degrees, and steps of 1 degree.

  In addition, in addition to the above-described variable angle holding unit 33 in increments of 5 degrees, a variable angle holding unit 38 that is a one-way variable holding unit 33a that can be finely adjusted as shown in FIG. 9 may be provided. That is, the reference-side adjustment hole group 54d and the adjustment-side adjustment hole group 54e are formed so that the adjustment can be made in increments of 1 degree from 0 degrees to 4 degrees.

  The reference-side adjustment hole group 54d is drawn on the left side in FIG. 9, and the reference-side adjustment hole 58 is located at the intersection point where the large diameter a and the small circumference b intersect the vertical axis y and the horizontal axis x. A total of eight are formed. The adjustment-side adjustment hole group 54e is drawn on the right side in FIG. 9, and the adjustment-side adjustment hole 59 has a circle having a large diameter and four intersections of the circumference b and the vertical and horizontal axes x. It is formed at four positions at predetermined angles in one direction from the circumference a and the vertical axis y or the horizontal axis x. In the example of FIG. 9, the position of the adjustment hole 59 when the adjustment-side adjustment hole 59 relatively rotates in the right direction indicated by the arrow d <b> 2 in FIG. 9 is shown.

  The adjustment holes 59 formed on the circumference a having a large diameter are arranged so as not to overlap each other in the direction opposite to the arrow d2 from the vertical axis y or the horizontal axis x, that is, 1 to 4 degrees in the left direction. Has been. In the vicinity of the adjustment hole 59 on the adjustment side, an identification portion 59a indicating an angle may be formed. In such a configuration, when the adjustment-side adjustment hole 59 is rotated relative to the right as indicated by the arrow d2 in FIG. 9, when the adjustment-side adjustment hole 59 is rotated once, the one-time adjustment hole 59 is the reference-side adjustment hole 55. Similarly, when it is rotated 2 degrees, when it is rotated 3 degrees, when it is rotated 4 degrees, the adjustment holes 55 of 2 degrees, 3 degrees and 4 degrees respectively coincide with the adjustment holes 55 on the reference side. The example shown in FIG. 10 is an example when rotated twice.

  When the angle is set to 0 degree, all the four adjustment holes 55 and 56 on the circumference b having a small diameter are matched. When it is not necessary to incline, the fixed shaft 57 is held in one of the matching four adjustment holes 55 and 56.

  One adjustment hole 55, 56 on the circumference b with a small diameter may be formed at an appropriate location.

  The combination of the angle variable holding section 33 and the fine angle variable holding section 38 with coarse angle adjustment as described above can be realized simply by configuring as shown in FIG.

  That is, as the vertical support plates 52a, 52b, and 53, the connecting plate 39 is provided in addition to the hanging portion 31b and the standing piece 32d. An adjustment-side adjustment hole 56 of the angle variable holding portion 33 with coarse angle adjustment is formed at the lower end of the connecting plate 39, and an adjustment-side adjustment hole 59 of the angle variable holding portion 38 with fine angle adjustment is formed at the upper end. . Then, an adjustment hole 58 on the reference side of the angle variable holding portion 38 with fine angle adjustment is formed at the lower end portion of the hanging portion 31b, and the reference side of the angle variable holding portion 38 with rough angle adjustment is formed on the standing piece 32d. An adjustment hole 55 is formed.

  FIG. 12 is an exploded perspective view of the slope step 11 provided with two types of variable angle holding portions 33 and 38 and capable of changing the angle in increments of 1 degree. As shown also in FIG. 13, the standing piece 32d is provided with a connecting plate 39 so as to sandwich the hanging part 31b and the standing piece 32d. A spacer 36 is interposed between the connecting plate 39 and the hanging portion 31b or the standing piece 32d.

  Thus, if the angle can be changed in increments of 1 degree, the angle (5n ± α °, where n is a natural number from 1 to 12) cannot be leveled when the gradient of the staircase axis 14 is 5 degrees. Even in this case, the tread surface 31a can be made horizontal as shown in FIG.

  In addition, the standing piece 32d and the hanging part 31b may be configured as one sheet, or may be configured as two sheets with an appropriate interval as shown in FIGS.

  Further, as shown in FIGS. 17 and 18, the stair shaft 14 is connected by an appropriate connecting member 14b. In addition to connecting straightly as shown in FIG. 17, it may be connected at an appropriate angle such as corresponding to the shape of the slope as shown in FIG.

  As shown in FIG. 2, a step member 17 similar to the step plate portion of the slope step 11 can be fixed to the connecting member 14 b. In this case, if necessary, the angle of the connecting member 14b may be held variable. A step member 18 similar to the stepping plate portion of the slope step 11 can be fixed to a portion for fixing the lower end of the step shaft 14 at the lower part of the slope 13 in FIG. In this case as well, the angle may be held variable with respect to the staircase shaft 14 as necessary.

  When fixing to a flat surface, such as when not fixing to the staircase shaft 14, the fixing portion 32 is formed into a suitably shaped flat plate shape as shown in FIG. 19, and the anchor bolt 15 is passed through for fixing. A through hole 32e may be provided.

  Next, an example in which the fixing portion 32 is directly fixed to the slope 13 as shown in FIG. 20 and the angle variable holding portion 33 is an omnidirectional variable holding portion 33b will be described. In this description, the same parts as those described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  The omni-directional variable holding portion 33b is formed at the lower end portion of the tread plate portion 31 and is disposed above and below the horizontal support plate 72 through the support shaft portion 71 extending in the vertical direction and on the support shaft portion 71. It consists of a set of fixed fasteners 73 to be fixed.

  As shown in FIG. 21, the tread plate portion 31 includes a plate member 35 having a rectangular shape in plan view, and a hanging portion 31 b that is suspended from the lower surface of the plate member 35. A plurality of hanging portions 31b are formed at intervals, and the above-mentioned horizontal support plate 72 is formed at the lower end portion thereof. The horizontal support plate 72 has a circular shape in plan view, and has a through hole 72a through which the support shaft portion 71 is passed at the center. One through hole 72 a is formed at the center of the horizontal support plate 72. The periphery of the through hole 72a has a width that allows the universal fastener 73 to move horizontally.

  The fixing portion 32 is fixed in contact with the slope 13 in a contact state. Specifically, as shown in FIGS. 20 and 22, the support shaft described above is driven into the slope 13 and functions as a pile. It has the support plate 41 which touches the part 71 and the slope 13 and prevents dent. The support shaft 71 is appropriately formed in length, and a male screw 71a is formed on the upper portion. In addition, a plurality of fixing pieces 71 b for preventing tilting of the driven support shaft portion 71 are formed in the lower portion driven into the slope 13. The fixing piece 71b may be T-shaped in plan view as shown in FIG. In addition, the contact resistance with the surroundings can be increased to form an appropriate shape that prevents displacement.

  The support plate 41 has a circular plate shape in plan view, and has a through hole 41a that allows the upper portion of the support shaft portion 71 to pass through at the center.

  The aforementioned universal fastener 73 fixed to the upper portion of the support shaft portion 71 includes a washer member 74, an interposition member 75, and a nut member 76, as shown in FIGS. The washer member 74 has an abutment surface 74a that abuts against the horizontal support plate 72 and a hemispherical convex spherical surface 74b. The convex spherical surface 74b is formed from the inner peripheral edge of the contact surface 74a as shown in FIG. 25, and a through hole 74c is formed at the top of the convex spherical surface 74b. The through hole 74 c has a smaller diameter than the inner diameter of the contact surface 74 a, but is sized to be loosely fitted to the support shaft portion 71.

  The interposed member 75 is an annular body that has a through hole 75 a having a diameter larger than the diameter of the support shaft portion 71 and slides in all directions along the convex spherical surface 74 b of the washer member 74.

  The nut member 76 is screwed into the support shaft portion 71 to fasten the interposed member 75 and the washer member 74 against the horizontal support plate 72, and a ready-made nut can be used.

  The universal fastener 42 including the washer member 74, the interposition member 75, and the nut member 76 that constitute the universal fastener 73 is also fixed on the support plate 41 described above. The support plate 41 may be positioned so that a nut (not shown) is screwed and pressed, but by using the universal fastener 42, the support shaft portion 71 and the support plate 41 are not orthogonal to each other, that is, Even when it cannot be driven straight to the slope 13, it can be fixed more firmly and stably.

  Basically, the slope step 11 having the omnidirectional variable holding portion 33b configured as described above has a shaft mounting member 45 protruding in the horizontal direction below the tread plate portion 31, as shown in FIG. May be provided. The shaft mounting member 45 is for mounting a shaft member 46 extending in the vertical direction, and the shaft member 46 extends downward and is inserted into the slope 13 as shown in FIG. It has both the handrail shaft part 46b extended upwards and the upper end part becoming a handrail.

  FIG. 26 is a plan view of the tread plate portion 31 provided with the shaft attachment member 45 having the shaft member 46, and FIG. 27 is a side view thereof. As shown in FIG. 26 (a), the shaft mounting member 45 protrudes in the required direction both in the state where the rectangular tread plate 31 having a rectangular shape in plan view is in a horizontally long state and in the state in which it is horizontally long as shown in FIG. Let

  The shaft mounting member 45 is composed of a metal plate formed in a band shape, and as shown in FIG. 27, is fixed to the hanging portion 31b of the foot plate portion 31 with a bolt nut or the like, and the height of the shaft member 46 can be adjusted at the tip. The holding part 45a to be held in the.

  The shaft member 46 has the above-described fixed pile portion 46a in the lower portion and the above-described handrail shaft portion 46b in the upper portion. The fixed pile portion 46a is driven into the slope 13, and an appropriately shaped fixing piece 71b is formed on the peripheral surface. The fixed pile portion 46 a has a support plate 41 and a universal fastener 42 as with the fixed portion 32. As shown in FIG. 27, the fixed pile portion 46a may be improved in stability when driven into the mountain side. The handrail shaft portion 46b extends in the vertical direction and can be adjusted in height, and has a handrail portion 47 at the upper end. For example, a high nut and a male screw can be used for the height adjustment. The handrail portion 47 can be configured by fixing a member such as a short tube to the upper end of the handrail shaft portion 46b.

  A plurality of fixed pile portions 46a may be provided as shown in FIG. In this case, a plurality of shaft mounting members 45 may be fixed side by side in the vertical direction.

  The shaft member 46 may have only one of these in addition to the fixed pile portion 46a and the handrail shaft portion 46b as described above. It can be assembled in an appropriate manner as required, such as the situation of the slope 13.

  FIG. 29 is a one-side cross-sectional plan view of the tread plate 31. The horizontal support plate 72 is provided with a plurality of through holes 72a. As shown in this figure, when a plurality of through-holes 72a are provided and a plurality of fixing portions 32 and a plurality of omnidirectional variable holding portions 33b are provided, firm fixation can be achieved.

  In addition, you may use the structure of such a fixing | fixed part 32 and the omnidirectional variable holding | maintenance part 33b for fixing the stair shaft 14 of the example mentioned above as shown in FIG. In the figure, reference numeral 48 denotes a support fitting for supporting the step shaft 14.

  Further, the configuration of the omnidirectional variable holding portion 33b may be used for the angle variable holding portion 33 of the slope step 11 fixed to the stair shaft 14, as shown in FIG.

  The slope step 11 configured as described above fixes the fixing portions 32 one by one with respect to the step shaft 14 and the slope 13, and appropriately sets the tread surface 31 a of the tread plate portion 31 with respect to the slope 13. Set to an angle. In the case where the fixing portion 32 is fixed to the staircase shaft 14, the staircase step 14 is fixed to the slope 13 even if the slope step 11 is fixed to the staircase shaft 14 after fixing the staircase shaft 14 to the slope 13 as described above. The slope step 11 may be fixed to the step axis 14 before the axis 14 is fixed. When the fixing part 32 is directly fixed to the slope 13, it is fixed one by one at a necessary place.

  Since the slope steps 11 can be fixed one by one, they can be freely installed not only in a direction that goes straight up with respect to the slope of the slope 13 but also in a direction that goes up obliquely with respect to the slope.

  Either fixing of the fixing portion 32 and setting of the angle of the tread surface 31a of the tread plate portion 31 may be performed first depending on the situation. However, in these cases, the distance between adjacent tread plate portions 31 and the difference in height are taken into consideration. To do. The adjustment of the interval and the height is mainly performed by setting the position of the fixing hole 14a when the staircase shaft 14 is used, or by adjusting the position of the long hole when the fixing hole 14a is constituted by a long hole. When directly fixing to the surface 13, the fixing position is selected. You may adjust height etc. using the thing from which the magnitude | size of a member differs.

  When the angle variable holding portion 33 is the above-described one-way variable holding portion 33a, the tread plate portion 31 is tilted to a desired angle, and then inserted into the adjustment holes 55 and 56 that match the fixed shaft 57 and tightened with the nut 57a. To set the angle.

  When the angle variable holding portion 33 is the above-described omnidirectional variable holding portion 33b, the step plate portion 31 is displaced with respect to the support shaft portion 71 so as to have a desired angle, and is freely set when the desired angle is obtained. Fastening is performed by the fasteners 73 and fixed.

  As described above, the step surface 11 itself having the tread plate portion 31 and the fixing portion 32 and having the variable angle holding portion 33 on the slope step 11 itself can be directly fixed to the slope 13 via the step shaft 14. Since the slope step 11 can be installed with a high degree of freedom, angle adjustment can be performed more appropriately. Further, the slope stairs 12 can be formed by carrying parts to the site and assembling them on the spot. For this reason, the appropriate slope step 12 can be formed according to the situation of the slope 13. Even if the condition of the slope 13 is poor, the slope stairs 12 can be easily formed.

  In addition, since the variable angle holding portion 33 and the fixing portion 32 are functionally independent, the other configuration does not get in the way when one of the functions is exerted, and the fixing and angle adjustment procedures are also free. Workability is good and reliable.

  When the angle variable holding part 33 is the one-way variable holding part 33a, the angle of the tread surface 31a is mechanically adjusted to the stair shaft 14 fixed at a certain angle, particularly when the stair shaft 14 is used. Since it can be set, workability can be improved. In addition, since the one-way variable holding portion 33a is configured by using the plurality of vertical support plates 52 and 53 and the fixed shaft 57, the angle adjustment only needs to rotate the vertical support plates 52 and 53 and insert the fixed shaft 57. Also in this respect, workability is good.

  When the angle variable holding portion 33 is the omnidirectional variable holding portion 33b, it can be surely dealt with particularly when the angle variable holding portion 33 is directly fixed to the slope 13. For this reason, according to the situation of the slope 13, the slope staircase 12 can be formed without damaging the slope 13 unnecessarily. Moreover, since the omnidirectional variable holding portion 33b is configured using the horizontal support plate 72 and the universal fastener 73, fine adjustment is possible and flexibility is high, so that the application range can be expanded.

  If the shaft attachment member 45 is provided in the lower part of the tread plate 31, the fixing strength, the safety of the lifting operation, and the like can be improved. That is, when the shaft attachment member 45 includes the shaft member 46 that becomes the fixed pile portion 46a, the fixed pile portion 46a is fixed to the slope 13 side by side with the fixed portion 32, so that the fixing strength can be increased. . If the shaft attachment member 45 is provided with the shaft member 46 serving as the handrail shaft portion 46b, a person who moves up and down the slope staircase 12 can be supported, so that the lifting operation can be made safe.

  The above configuration is one form for carrying out the present invention, and the present invention is not limited to the above-described configuration, and other configurations can be adopted.

  As the variable angle holding portion 33, for example, a universal joint and a mechanism that holds the angle of the universal joint can be used.

  In the above description, the shaft attachment member 45 is provided in the slope step 11 provided with the omnidirectional variable holding portion 33b, but may be provided in the slope step 11 provided with the unidirectional variable holding portion 33a.

  The member attached to the slope 13 may be a rail or a plate fixed to the slope instead of the stepped shaft as described above.

  The arrangement of the adjustment holes 55, 56, 58, 59 constituting the adjustment hole group 54 of the one-way variable holding portion 33a is other than the above-described example, for example, by fixing a plurality of fixed shafts 57 at one angle. Can be arranged in various ways.

DESCRIPTION OF SYMBOLS 11 ... Slope step 12 ... Slope step 13 ... Slope 14 ... Stair shaft 31 ... Tread plate part 31a ... Tread surface 32 ... Fixed part 33, 38 ... Angle variable holding part 33a ... Unidirectional variable holding part 33b ... Omnidirectional variable Holding part 45 ... Shaft mounting member 46 ... Shaft member 46a ... Fixed pile part 46b ... Handrail shaft part 51 ... Pivot shaft 52, 52a, 52b, 53 ... Vertical support plate 55, 56, 58, 59 ... Adjustment hole 57 ... Fixed Shaft 71: Support shaft portion 72 ... Horizontal support plate 73 ... Swivel fastener 74 ... Washer member 74a ... Contact surface 74b ... Convex spherical surface 75 ... Interposition member 75a ... Through hole 76 ... Nut member

Claims (11)

Slope steps that are fixed directly or indirectly to the slope,
A fixing portion for fixing is provided below a tread plate portion having a tread surface,
A slope step comprising a variable angle holding portion that adjusts an angle formed between the tread plate portion and the fixed portion to maintain an angle of the tread surface with respect to the slope. The slope step according to claim 1, wherein the variable angle holding portion and the fixing portion are functionally independent. The slope step according to claim 1 or 2, wherein the variable angle holding unit is a one-way variable holding unit capable of changing an angle in the front-rear direction. The one-way variable holding portion includes a plurality of vertical support plates that rotate relative to each other around pivot shafts that extend in the lateral direction so as to face each other
In the vertical support plate, a plurality of adjustment holes are formed on a concentric circle centered on the pivot shaft when the tread plate portion and the fixing portion are at a required angle,
The slope step according to claim 3, further comprising a fixed shaft that is inserted into the matched adjustment hole. The slope step according to claim 1 or 2, wherein the angle variable holding unit is an omnidirectional variable holding unit capable of changing an angle in a front-rear direction and a left-right direction. The omnidirectional variable holding portion is formed at the lower end portion of the tread plate portion, and a horizontal support plate having a through hole through which a support shaft portion extending in the vertical direction passes,
It is composed of a set of universal fasteners arranged above and below the horizontal support plate and fixed to the support shaft portion,
The universal fastener has a contact surface that contacts the horizontal support plate, a washer member having a hemispherical convex spherical surface, and a through hole having a diameter larger than the diameter of the support shaft portion, along the convex spherical surface. The slope according to claim 5, comprising a sliding annular interposed member, and a nut member screwed into the support shaft portion and tightening the interposed member and the washer member against the horizontal support plate. Step. The slope step according to any one of claims 1 to 6, wherein the fixing portion is fixed in contact with the slope. The slope step according to any one of claims 1 to 6, wherein the fixed portion is fixed to a step shaft fixed on the slope. The slope step according to any one of claims 1 to 8, further comprising a shaft mounting member capable of mounting a shaft member protruding in a horizontal direction and extending in a vertical direction at a lower portion of the tread plate portion. The slope step according to claim 9, wherein the shaft member has at least one of a fixed pile portion that extends downward and is inserted into the slope, or a handrail shaft portion that extends upward and has an upper end serving as a handrail. A slope staircase provided with the slope step according to any one of claims 1 to 10.

Images