JPH0549941U - Retrofit stair handrail foundation metal fittings - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a foundation stair railing base metal fitting that can be constructed with a reinforced core and a handrail post that have been machined in a factory, etc., and has some flexibility and high strength. [Structure] Left and right base plates having upper ends raised in an arc shape with an arbitrary curvature on both sides of a guide protrusion whose upper end is raised in an arc shape with an arbitrary curvature, and through which fixed screw insertion long holes 4 and 4 are provided are called base metal fittings A. , With a curvature that matches the upper end of the guide protrusion of the planting seat cylinder 8 that receives and places the slanted lower end 13 of the reinforcing core C that is mounted on the lower end of the handrail pillar D so that the height can be adjusted freely. A slide groove having a fitting width of the upper end of the guide protrusion 1 can be freely formed over the front and back of the central portion of the outer bottom surface 7a which is recessed in an arc shape.
6 is recessed in an arc shape with a curvature that matches the upper surface of the base plate, and fixed screw insertion long holes 12, 4 corresponding to the fixed screw insertion holes 4 and 4,
One end side of the left and right slide plates through which 12 are planted and the seat cylinder 8
It is made up of a combination of handrail pillar root brackets B that are juxtaposed in parallel on both sides of the outer bottom surface 7a, and extend symmetrically in a symmetrical manner on the left and right base plates.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a foundation metal fitting that is used for rooting the root of a handrail post in the case of a staircase handrail construction to be added later.

[0002]

[Prior Art]

 In this type of post-installation stair handrail construction, there was no base metal fitting for rooting the base of the handrail post, the so-called planting seat cylinder in this proposal that fits around and supports the base of the handrail post or the periphery of the reinforcing core. As a result, it is not possible to consistently fix the base metal fittings and the reinforcement core or the handrail pillar root part that is internally fitted to the inside of the handrail pillar root part with screws from the horizontal lateral direction, and eventually the handrail pillar root part. It was fixed only by vertical screwing to the base metal fitting of the reinforcing core that is fitted inside.

As mentioned above, in order to fit the reinforcing core inside the root of the handrail pillar in order to secure the strength, the lower end of the reinforcing core is precisely beveled according to the stair angle, and When the base of the handrail pillar reached the base metal and abutted against it, the root of the handrail pillar had to be obliquely cut at the same angle as the cutting surface of the core (same as the stair angle). On the other hand, since the base metal fittings consisted of a single member, if the base metal fittings themselves did not have the cut surfaces of the lower end of the reinforcing core and the root of the handrail post accurately beveled, there would be an error from the floor angle. Could not be offset.

[0004]

[Problems to be solved by the device]

 However, as described above, in the conventional base metal fittings for planting the roots of the handrail pillars, what surrounds the planting seat surface is only a flat edging, and the reinforcing core or the part of the stairs pillar root that is caught on the lower end of the slant. Since there is a small amount of backlash, rattling is likely to occur, and when a handrail column is installed upright along the slope of a stairway, the lower part of the staircase is naturally biased toward the upper part in the reinforcing core and the base part of the handrail column. However, there was a problem in securing the strength in the conventional base metal fitting having only the flat edging.

This is because the base metal fittings and the reinforcing core or the base of the handrail pillar cannot be integrally fastened from the side surface as described above, so that the root of the handrail pillar is planted in the inside during reinforcement. This is done only by fixing vertical screws to the base metal fittings of the child. From this point as well, there was a problem in securing strength when the handrail columns were erected along the slope of the stairs.

Also, as described above, in order to fit the reinforcing core inside the root of the handrail pillar in order to secure the strength, there are many variations depending on the construction location, and in addition, according to the stair angle where measurement is very difficult, The lower end of the slanted part of the reinforcing core must be machined accurately, which is time-consuming and time-consuming. At the same angle as the machining slanted bottom end of the reinforcing core (same as the stair angle), the slanted bottom end of the handrail post root part to be fitted must also be cut accurately, which is not only a double labor but also a cost. Bulky.

Also, since the base metal fitting was composed of a single member, when the base metal fitting supporting the base of the handrail post was installed along the slope of the stairs, the inclination angle of the stairs to be constructed was the bottom end of the slope of the handrail post. If there is a slight deviation from the inclination angle of the lower end of the reinforcing core, the foundation metal fitting itself should offset the error between the lower end of the slope of the handrail column root and the lower end of the reinforcing core and the stair angle. It was not possible to do so, so it was either erected on the base metal fittings with a misaligned angle, or it was erected to forcibly match the stair angle.

However, if the construction is performed in conformity with the staircase angle, there is a problem in appearance such as a gap between the base metal fitting and the lower end of the slanted core core or the slanted bottom end of the handrail pillar root part. If the construction is carried out as it is, the staircase angle after construction will not be constant and the appearance will be unsatisfactory. In order to avoid this, however, it is necessary to again cut the lower end of the slope of the root part of the handrail pillar and the lower end of the slope of the reinforcing core, which is troublesome and requires more work. Not only that, but while repeating this kind of slope, the length of the handrail pillar became insufficient this time, and the handrail pillar became unusable, and it became costly and time-consuming to add a ring. , Had various challenges. In view of the above-mentioned conventional problems, the present invention can be constructed with a reinforcing core and a handrail post that are pre-cut at a certain angle, and can be constructed by offsetting some angle errors during construction. The purpose of the invention is to provide a foundation metal fitting for a staircase with a trailing stair, which saves time and labor, and has some flexibility with respect to the stair angle.

[0009]

[Means for Solving the Problems]

 The solution of the above problem is achieved by the present invention by adopting the following novel characteristic construction means. That is, the feature of the present invention is that the upper and lower sides of the guide protrusions are raised in an arc shape with an arbitrary curvature and the upper surfaces are raised in an arc shape with an arbitrary curvature and the left and right base plates are formed with fixed screw insertion slots. The base metal fittings that extend symmetrically and the height adjustments at the bottom of the handrail post are adjusted and the height of the slanted bottom of the reinforcing core that is freely set is set on the planting seat surface. A guide groove is formed in a circular arc with a curvature that matches the upper end so that a slide groove with the fitting width of the upper end of the guide projection can be formed around the center of the outer bottom surface that is formed into a circular arc with the curvature that matches the upper surface of the base plate. One end side of the left and right slide plates, which are formed in a concave shape and have a fixed screw insertion long hole corresponding to the fixed screw insertion long hole, are stacked in parallel on both sides of the outer bottom surface of the planting seat cylinder, and symmetrically described above. Handrail pillar roots that can be slidably placed on the left and right base plates It is a staircase handrail for the foundation bracket retrofitting consisting of a union of the bracket.

[0010]

[Action]

 In this plan, since the measures described above were taken, after placing the base metal fitting at the target position for construction, the reinforcing core, which was previously cut at a certain angle, was planted on the seating surface of the pillar base metal fitting. Then, the pillar root metal fitting is superposed on the base metal fitting from above so that the guide protrusion of the base metal fitting is fitted into the guide groove formed at the end of the pillar base metal fitting facing the left and right slide plates. ..

Then, the pillar root metal fitting is slid on the base metal fitting so that the reinforcing core is erected vertically, and after positioning, the pillar root metal fitting and the base metal fitting are pierced with a fixing screw. To fix. After that, after adjusting the height by externally fitting the slanted bottom end of the bottom end of the handrail pillar base from the upper end of the reinforcing core, the reinforcing core and the handrail pillar are fixed by an appropriate means to carry out the stair handrail installation. ..

[0012]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a base metal fitting of a base metal fitting for post-installed stair handrail of the present embodiment, FIG. 2 is the same front view, FIG. 3 is the same bottom view, FIG. 4 is the same right view, and FIG. 1 is a cross-sectional view taken along line V-0-V, FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 3, FIG. 7 is a plan view of a pillar root metal fitting of a base metal fitting for a rear stair handrail of this embodiment, and FIG. Is the same right side view, FIG. 9 is the same bottom view, FIG. 10 is the same top plan view, FIG. 11 is a sectional view taken along the line XI-XI in FIG. 10, and FIG. 12 is a view taken along the line XII-XI I in FIG. A sectional view, FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 14, FIG. 14 is a rear view of the reinforcing core, FIG. 15 is a same plan view, and FIG. 16 is a right side view thereof.

In the figure, A is a base metal fitting, 1 is a guide protrusion protruding from the central portion of the base metal fitting A, 2 is a bottom surface, 3 is a left and right base plate having a sliding upper surface 3 a, and 4 is a bottom surface 2. Fixing screw insertion long hole which is symmetrically pierced with the center line of as a symmetry line, B is a pillar root metal fitting, 5 is a left and right slide plate which forms the sliding lower surface 6, 7 is a planting seat surface, 8 is a planting seat A planting seat cylinder that surrounds the surface 7, 9 is a pair of left and right vertical screw insertion holes that are pierced through the center of the planting seat surface 7 as a symmetry point, 10 is a drain hole that is provided through the planting seat surface, 11 Is a lateral screw insertion hole penetrating to the left and right opposite sides of the planting seat cylinder 8, 12 is a fixed screw insertion long hole with a concave step 12a formed at a position corresponding to the fixed screw insertion long hole 4 of the base metal fitting A, C Is a reinforcing core, 13 is a slanted lower end, and 14 is a vertical screw hole.

The post-stair handrail base metal fitting of the present invention comprises a combination of a base metal fitting A, a pillar root metal fitting B, and a reinforcing core C. As shown in FIGS. 1 to 6, in the base metal fitting A, the guide protrusion 1 fitted in the slide groove 5'between the left and right slide plates 5 and 5 of the pillar base metal fitting B is formed in the frame shape of the inner cavity 1a in the central portion. The guide projection 1 and the left and right base plates 3 and 3 extending left and right from the guide projection 1 have their front and rear end portions gradually reduced in thickness as shown in the side view of FIG. As a result, the central portion forms a bulging arc, and when the pillar base metal fitting B overlaps and slides from above, it can slide smoothly on the base metal fitting A.

On the other hand, in the vicinity of the left and right ends of the left and right base plates 3 and 3, fixing screw insertion long holes 4 and 4 are provided so as to be symmetrical with the center line of the bottom surface 2 as a line of symmetry. When the base metal fitting A is fixed to the stairs, a fixing screw is inserted and fixed in the screw insertion long holes 4 and 4. In addition, when the base metal fitting for the staircase handrail with the rear end of this embodiment is externally constructed, the drainage recess 2a cut out in the front-rear central portion of the lower end of the guide projection 1 is a frame-shaped guide projection of the inner cavity 1a. It prevents rainwater that has passed through the inside of 1 from accumulating inside the guide projection 1.

As shown in FIGS. 7 to 13, the pillar base metal fitting B has the guide projection 1 of the base metal fitting A with a slide groove 5 ′ having a width substantially smaller than the width of the guide projection 1 and having substantially the same width. It is fitted with the intervening left and right slide plates 5, 5 and overlaps on the base metal fitting A. The fixed screw insertion long holes 4, 4 of the base metal fitting A in the left and right slide plates 5, 5 are inserted. At the corresponding position, fixed screw insertion long holes 12, 12 with concave steps 12a are provided so that the sliding lower surfaces 6, 6 on the back side are the upper and lower sliding surfaces 3a, 3a of the base metal fitting A. While the thickness of the end part is gradually decreased and the central part is raised to form a circular arc, the thickness is gradually increased to the extent that the thickness is slightly increased, and an arc shape with almost the same curvature is formed. Similarly, the outer bottom surface 7a of the planting seat surface 7 that abuts the upper surface of the guide protrusion 1 of the base metal fitting A is also recessed and formed in an arc shape having substantially the same curvature as the guide protrusion 1.

On the other hand, the left and right slide plates 5 and 5 extend symmetrically with one end superposed on both sides of the outer bottom surface 7a of the planting seat cylinder 8 whose inner bottom portion is surrounded by the planting seat surface 7. The planting seat cylinder 8 is tilted upward from the left and right slide plates 5 and 5 at an arbitrary angle γ (about 40 ° in this embodiment). The planting seat surface 7 is also penetrated by the left and right slide plates 5 and 5 in which a pair of left and right vertical screw insertion holes 9 are stacked on each other with the center as a symmetry point.

Also, the planting seat surface 7 is formed to be slightly wider than the surrounding area of the reinforcing core C oblique end 13 which is seated on the adhesive core shown in FIGS. It is adjustable. On the other hand, the outer peripheral surface 8a of the planting seat cylinder 8 is formed so as to be gradually reduced in diameter toward the tip, and the inner peripheral surface 8b is formed so as to be gradually enlarged in diameter at the lower end. There is still room for compensating for deviations that cannot be offset even by vertical positioning due to sliding of the root bracket B.

When the reinforcing core C shown in FIGS. 14, 15 and 16 is planted on the planting seat surface 7, the reinforcing core C standing upright on the planting seat surface 7 forms a horizontal line K. The oblique lower end 13 of the reinforcing core C, which has been precut by an arbitrary angle δ (40 ° in this embodiment), is placed, and a vertical screw group described below is inserted from the lower surface to the vertical screw insertion hole of the planting seat surface 7. 9th group and the above-mentioned reinforcing core C are inserted into the vertical screw holes 14 and tightened. Also, lateral screw insertion holes 11 and 11 are respectively provided at positions on the right and left opposite sides from the upper end of the planting seat cylinder 8 on the opposite side, and the lateral screw insertion holes 11 and 11 and the aforementioned planting seat are provided. The end of the lateral screw, which will be described later, is pressed against the central groove 15a of the vertical groove 15 extending vertically at the position corresponding to the lateral screw insertion holes 11, 11 of the reinforcing core C erected on the surface 7.

The shape of the planting seat surface 7 and the planting seat cylinder 8 of the pillar base metal fitting B of the post-stair handrail basic metal fitting of the present invention is not limited to a square shape, and it corresponds to the cross-sectional shape of the reinforcing core C. For example, a circular shape, a hexagonal shape, a cross shape, or the like may be used as long as the shapes are symmetrical to the left and right. At this time, the positions of the groups of vertical screw insertion holes 9 are paired left and right with the center of the planting seat surface 7 as a symmetry point as described above, and the planting seat surface 7 (similar to the cross-sectional shape of the handrail post). It may be determined after measuring the strength according to the shape of.

Since the specifications of the present embodiment present such a concrete embodiment, the procedure for installing the base metal fitting for the subsequent step handrail will be described below. FIG. 17 is a perspective view for explaining a planted state of the present embodiment in which the horizontal screw is omitted, and FIG. 18 is a right side view showing a planted state in a staircase in which the inclination angle α1 of the trailing stair handrail base metal fitting of the present embodiment is 35 °. FIG. 19 and FIG. 19 are right side views showing a state of planting in a staircase with the same inclination angle α2 of 45 °.

In the figure, D is a handrail pillar, 16 is a horizontal screw direction through the horizontal screw insertion hole 11 of the planting seat tube 8 of the pillar base metal fitting B with respect to the central groove 15a of the vertical groove 15 of the reinforcing core C. From the horizontal screw for pressing with the pressure screw, 17 is a fixed screw for fixing the pillar root bracket B and the base bracket A to the stairs side slope β by penetrating through the fixed screw insertion long holes 4 and 12 penetrating each other. , 18 are vertically inserted into the group of vertical screw insertion holes 9 of the planting seat surface 7 of the pillar root bracket B and the vertical screw holes 14 of the reinforcing core C to plant the reinforcing core C on the planting seat surface 7. Longitudinal screw, β is the slope beside the stairs.

As shown in the perspective view for explaining the planting state in which the horizontal screw is omitted in FIG. 17, first, the base metal fitting A is first installed at an appropriate position on the stairs side slope (not shown in this figure), and then the vertical screw as described above is preliminarily set. In the 18th group, the pillar base part in which the reinforcing core C oblique lower end 13 is planted on the planting seat surface 7 The guide protrusion 1 of the base metal fitting A is installed in the slide groove 5'between the left and right slide plates 5 and 5 of the metal fitting B. Place the stack so that they fit together.

After that, the pillar base metal fitting B is slid back and forth on the base metal fitting A so as to vertically set the reinforcing core C, and the positioning is determined, and then the base metal fitting A and the base metal fitting A are fixed by the fixing screw 17. The fixing screw insertion long holes 4 and 12 which are respectively provided in the pillar base metal parts B are double-fixed and fixed. As a result, the pillar base metal fitting B cannot slide on the base metal fitting A, and the reinforcing core C planted in the pillar base metal fitting B is erected vertically on the slope beside the stairs.

Next, the bottom end of the root of the handrail pillar D is fitted over the upper end of the reinforcing core C from above, and the handrail pillar D and the reinforcing core C are fixed to each other by appropriate means. At this time, the amount by which the handrail pillar D and the reinforcing core C are removed and overlapped (after all, the length from the upper end to the lower end of the handrail pillar) is determined by the staircase handrails that are continuously bridged to the upper end of the handrail pillar D. However, it may be determined by arbitrarily adjusting it so that it matches the stairs angle. In addition, as a procedure for installation, the bottom end of the handrail pillar D root is externally fitted to the reinforcing core C that has been installed upright, the amount of insertion and removal is determined, and then fixed by appropriate means, and then the pillar root bracket B is attached. It may be mounted on the base metal fitting A for angle determination.

As shown in FIGS. 18 and 19, the rear stair handrail base metal fittings including the base metal fitting A and the pillar root metal fitting B of the present embodiment are the same whether the stair inclination angle α1 = 35 ° or α2 = 40 °. If the stairs can be slid on the base metal fitting A so that the pillar base metal fitting B can slide to the position where the reinforcing core C is vertically erected on the base metal fitting A, it can be applied randomly and repeatedly. In FIGS. 18 and 19, the reinforcing core C erected on the planting seat surface 7 of the pillar base metal fitting B is provided with the vertical groove 15 at a position corresponding to the horizontal screw insertion hole 11 of the planting seat cylinder 8 of the pillar base metal fitting B. The central groove 15a of the vertical groove 15 of the reinforcing core C is formed by vertically extending the central groove 15a and passing the tip of the horizontal screw 16 through the horizontal screw insertion hole 11 of the planting seat tube 8 of the pillar root bracket B. It is tightened with pressure to increase the strength.

[0027]

[Effect of the device]

 Thus, according to the present plan, in the retrofitting of stair handrails, it is not necessary to cut the handrail pillar roots and cores at a precise angle that matches the inclination angle of the work site, but at a certain angle beforehand. Since the cutting work is simple and mechanical, and it can be applied randomly to a certain degree to the stair inclination angle, one type can be used for stairs with various inclination angles within a certain range. Even if the handrail pole length is not uniform because the inclination angle of the stairs itself is not correct and the handrail pole length is not uniform, it is easy to set the extension / insertion length of the bottom end of the handrail pole and the reinforcement core to expand / contract. In addition, the finished product is beautiful after construction, and the reinforcing core is also screwed horizontally from the planting seat of the base metal fittings, so the horizontal strength is much higher than the conventional one. It has various practicalities and usefulness such as higher cost.

[Brief description of drawings]

FIG. 1 is a plan view of a base metal fitting of a base metal fitting for a stair handrail attached after the embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a right side view of the same.

5 is a cross-sectional view taken along line V-0-V in FIG.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a plan view of a post base metal fitting of a base metal fitting for a staircase handrail after installation according to an embodiment of the present invention.

FIG. 8 is a right side view of the above.

FIG. 9 is a bottom view of the same.

FIG. 10 is a plan perspective view of the same.

11 is a sectional view taken along line XI-XI in FIG.

12 is a sectional view taken along line XII-XII in FIG.

FIG. 13 is a sectional view taken along line XIII-XIII of the above.

FIG. 14 is a rear view of the reinforcing core.

FIG. 15 is a plan view of the same.

FIG. 16 is a right side view of the above.

FIG. 17 is a perspective view illustrating a planted state in which the horizontal screw of the embodiment of the present invention is omitted.

FIG. 18 is a right side view showing a planted state in a staircase having an inclination angle of 35 ° according to the embodiment of the present invention.

FIG. 19 is a right side view showing the state of planting on a staircase with an inclination angle of 45 ° as above.

[Explanation of symbols]

 A ... Base metal fitting 1 ... Guide protrusion 2 ... Bottom surface 3 ... Base plate 3a ... Sliding upper surface 4 ... Fixed screw insertion long hole B ... Pillar root metal fitting 5 ... Slide plate 6 ... Sliding lower surface 7 ... Planting seat surface 8 ... Planting Seat tube 9 ... Vertical screw insertion hole 10 ... Drainage hole 11 ... Horizontal screw insertion hole 12 ... Recessed fixed screw insertion long hole γ ... Inclination angle C ... Reinforcing core 13 ... Oblique lower end 14 ... Vertical screw hole δ ... Inclination Angle D ... Handrail post 15 ... Vertical groove 15a ... Center groove 16 ... Horizontal screw 17 ... Fixed screw 18 ... Vertical screw β ... Stairs side slope

Claims (1)

[Scope of utility model registration request] 1. A left and right base plate having a curved upper end on both sides of a guide protrusion whose upper end is raised in an arc shape with an arbitrary curvature and an upper face raised in an arc shape with an arbitrary curvature, and through which fixed screw insertion slots are formed. A base metal fitting that extends symmetrically, and the upper end of the guide projection of the planting seat cylinder that receives the lower end of the slanted bar of the reinforcing core that is freely installed and set on the lower end of the handrail pillar and receives it on the planting seat surface. It is possible to form a slide groove with the fitting width at the upper end of the guide protrusion across the center of the outer bottom surface that is formed by denting in an arc shape with a matching curvature, and denting the bottom surface in an arc shape with a curvature matching the upper surface of the base plate. One side of the left and right slide plates, which are formed in a bay and through which the fixed screw insertion slot corresponding to the fixed screw insertion slot is formed, are attached in parallel on both sides of the outer bottom surface of the planting seat cylinder, and the left and right bases are symmetrically formed. A set with a handrail pillar base metal fitting that overhangs freely on the board Stair handrail for the foundation bracket with after that, characterized in that it consists of