JPH0512500B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to handrails used for stairs, gently sloped passageways for wheelchair users and people with reduced mobility, and partitions (for example, partitions between parks and roads). This relates to the manufacturing method.

[Prior Art] Handrails for stairs, inclined passages, etc. have been assembled by welding.

Specifically, referring to FIG. 17, the upper crosspiece a and the lower crosspiece b are appropriately spaced apart and parallel to each other, and the stairs c
A plurality of pipes d are arranged parallel to each other at equal intervals between the upper crosspiece a and the lower crosspiece b, and one end of the pipe d and the upper crosspiece a are connected to the other end of the pipe d. The handrail panel is manufactured in a factory by welding and joining the lower crosspiece b to each other. The manufactured handrail panels were carried to the site and the stair handrails were assembled. e in the figure
is a support, f is a fixing member for fixing the lower crosspiece b to the stairs c, and g is a floor.

[Problems to be Solved by the Invention] However, when assembling handrails using the welding method, distortion occurs in the handrail panel due to thermal deformation during welding, and it is difficult to correct this distortion. Problems such as not being able to easily align the position of the assembly or adjusting between parts, and furthermore, after welding work, it is necessary to confirm whether or not welding is complete, as well as finishing processes such as polishing. There was a hot spot.

In view of the above-mentioned circumstances, an object of the present invention is to provide a handrail manufacturing method that can easily manufacture a handrail without employing a welding method.

[Means for Solving the Problems] A first invention provides a groove 1c extending in the longitudinal direction at the bottom of a hollow member having a polygonal cross-section, and a partition wall 1d extending on both sides of the groove 1c at a required interval at the upper edge thereof. The upper crosspiece 1 is formed by providing arcuate supporting notches 1b facing each other, and a groove 5c extending in the longitudinal direction is provided at the bottom of the hollow member having a polygonal cross section, and the upper crosspiece 1 is provided with a groove 5c extending in the longitudinal direction on the upper surface. Through-holes 5b are formed at equal intervals with the support notch 1b to form the lower crosspiece 5,
The upper crosspiece 1 and the lower crosspiece 5 are arranged such that the lower crosspiece 5 is located directly below the upper crosspiece 1 with a required spacing therebetween, and the upper crosspiece 1
It is arranged at the handrail installation point so that it is parallel to the handrail, and then it is attached to the support notch 1b of the upper crosspiece 1 so as to be swingable in the longitudinal direction of the upper crosspiece 1 along the erected surface of the partition wall 1d of the upper crosspiece 1. The engaging portion 2b has a threaded hole 2c and is slidable within the supporting notch 1b.
Insert the engaging member 2 formed into an arc shape into the upper crosspiece 1 through the groove 1c, change the direction with respect to the longitudinal direction, and engage the engaging portion 2b with the support notch 1b of the upper crosspiece 1. The upper crosspiece 1 and the lower crosspiece 5 are supported by
The upper end of the intervening member 3 for connecting and dividing the
It is attached to the engagement member 2 via a mounting member 4 having a fitting portion 4a with the intervening member 3 and a screw 4b screwed into the screw hole 2c of the engagement member 2, and then having a curved surface portion 6c. and a mounting aid 6 having a fan-shaped through hole 6b facing the curved surface portion 6c;
From the groove 5c to the lower crosspiece 5 with the curved surface part 6c at the top
At the same time, the through hole 6b is aligned with the through hole 5b of the lower crosspiece 5 so that the curved surface part 6c is pressed against the lower crosspiece 5, and the lower end of the intervening member 3 is attached to the lower crosspiece 5 through the mounting aid 6. 7 and repeat the above steps to attach the upper ends of the plurality of intervening members 3
Furthermore, the handrail is manufactured by attaching the lower ends of the intervening members 3 to the lower crosspieces 5, respectively.

Further, the second invention provides a groove 1c extending in the longitudinal direction at the bottom of a hollow member having a polygonal cross-section, and arc-shaped supporting notches are provided at required intervals on the upper edge of the partition wall 1d extending on both sides of the groove 1c. The upper crosspiece 1 is formed by providing the portions 1b facing each other, and the upper crosspiece 1 is arranged at a handrail installation location, and then the partition wall 1d of the upper crosspiece 1 is installed.
It engages with the support notch 1b of the upper crosspiece 1 so as to be swingable in the longitudinal direction of the upper crosspiece 1 along the erected surface of the upper crosspiece 1, has a screw hole 2c, and can slide within the support notch 1b. Insert the engaging member 2 with the engaging part 2b formed into an arc shape into the upper crosspiece 1 through the groove 1c, change the direction with respect to the longitudinal direction, and insert the engaging member 2b into the supporting notch of the upper crosspiece 1. The upper end of the intervening member 3 that connects and partitions the upper crosspiece 1 and the handrail installation location by engaging with the intervening member 1b is connected to the upper end of the intervening member 3 by engaging with the intervening member 3 and the screw of the engaging member 2. It is attached to the engaging member 2 through the attachment member 4 having a screw 4b that is screwed into the hole 2c, and then the lower end of the intervening member 3 is attached to the handrail installation location, and the above-mentioned procedure is repeated to attach a plurality of intervening members 3. The handrail is manufactured by attaching the upper end to the upper crosspiece 1 and the lower end of the intervening member 3 to the handrail installation location.

[Function] The engaging portion 2b of the engaging member 2 is engaged with the supporting notch 1b of the upper crosspiece 1 arranged at the handrail installation location so as to be able to swing in the longitudinal direction of the upper crosspiece 1, and the engaging member 2 is screwed. 4b
The upper end of the intervening member 3 is attached to the fixed attachment member 4. Therefore, the interposed member 3 can be swingably suspended and supported by the upper crosspiece 1, and even if there is an error in the length dimension of the interposed member 3, the number of screw pitches of the screws 4b of the mounting member 4 can be changed. It is convenient because it can be absorbed by fine adjustment. Next, the lower end of the intervening member 3 is attached to the lower crosspiece 5, which is disposed directly below the upper crosspiece 1 in parallel and at an appropriate interval, with a screw 7 via an attachment auxiliary member 6. Alternatively, attach the lower end of the intervening member 3 to the handrail installation location. Since the handrail is manufactured by repeating the above-mentioned procedure, the handrail can be easily manufactured by screw connection without the need for welding, and it is advantageous that fine adjustments can be made on site.

[Example] An example of the present invention will be described based on FIGS. 1 to 16, taking a stair handrail as an example.

First, the upper crosspiece 1 will be explained with reference to FIGS. 1 to 3.

Both width ends of a stainless steel plate 1a having a required width are punched out at regular intervals (for example, about 100 m/m) to form semicircular supporting notches 1b.

The upper crosspiece 1 is made of the stainless steel plate 1a processed as described above, along the broken lines A, B, C, A', B', and B' in FIG.
The forming process is performed so that the center part is bent in parallel to the center as a fold line, and the central part protrudes in an arc opposite to the winding side, and as a result of this forming process, the central part A groove 1c having a required width is formed in the axial direction.
As shown in FIG. 3, a semicircular supporting notch 1b is located in an open state at the upper edge of the opposing partition wall 1d of FIG.

Opposing partition wall 1d of the groove 1c of the upper crosspiece 1 mentioned above
The engagement member 2 is engaged and supported by the semicircular support notch 1b located at the upper edge so as to be swingable in the longitudinal direction of the upper crosspiece 1, as shown in FIG. That is,
A rod-shaped member 2a has an elliptical cross-section, the dimension of the short axis portion is smaller than the width dimension of the groove 1c of the upper crosspiece 1, and the length is such that it can be stored inside the upper crosspiece 1 at right angles to the axial direction of the upper crosspiece 1. One side of both ends on the long axis side is cut to the end in the axial direction, and the other side on the central long axis side of the rod-shaped member 2a is semicircular to match the semicircular support notch 1b of the upper crosspiece 1. An engaging portion 2b is formed by cutting the rod-like member 2a so that it has an axial length slightly larger than the width of the groove 1c of the upper crosspiece 1, and a screw hole is formed in the center of the rod-like member 2a in the longitudinal direction. 2
c is drilled.

The engaging member 2 formed as described above has an engaging portion 2 in the upper crosspiece 1 as shown in FIGS. 5 and 6.
b is engaged with the supporting notch 1b of the upper crosspiece 1 so as to be able to swing in the longitudinal direction of the upper crosspiece 1, and in such a state, the screw hole 2c of the engaging member 2 is connected to the support notch 1b of the upper crosspiece 1. It will always face up and down without being affected by.

Further, as shown in FIG. 7, there is a cylindrical fitting portion 4a having an outer diameter that matches the inner diameter of a pipe (intervening member) 3 that connects and partitions the upper crosspiece 1 and the lower crosspiece 5, which will be described later.
A screw 4b that is engaged with the screw hole 2c of the engagement member 2 is provided in the center of the attachment member 4, protruding in the axial direction, and the engagement member 4 that engages with the upper crosspiece 1 as shown in FIG. Insert the screw 4b of the mounting material 4 into the screw hole 2c of the member 2.
By screwing the upper end of the pipe 3 into the fitting portion 4a, the upper end of the pipe 3 can be attached to the upper crosspiece 1, and the screw 4b
Even if there is an error in the longitudinal dimension of the pipe 3, it can be adjusted by changing the number of screw pitches of the engaging member 2 into the screw hole 2c.

Next, the lower crosspiece 5 will be explained with reference to FIGS. 9 to 11.

Through holes 5b are formed at regular intervals (for example, 100 m/m) in the central part of the stainless steel plate 5a of the required width in the axial direction in accordance with the intervals of the supporting notches 1b of the upper crosspiece 1.
is punched out.

The lower crosspiece 5 is formed by bending the stainless steel plate 5a processed as described above parallel to each other so as to wrap it toward the center using the broken lines D, H, N', and E' in FIG. As shown in FIG. 10, a groove 5c of a required width is formed in the central portion in the axial direction.

The attachment aid 6 used to attach the lower end of the pipe 3 to the lower crosspiece 5 described above is shown in FIGS. 12A and 12B.
It looks like this. That is, the width dimension is lower crosspiece 5.
A curved surface portion 6c with respect to the axial direction is provided at the center of the semi-cylindrical member 6a, which is narrower than the width of the groove 5c and has a length that can be stored inside the lower crosspiece 5 at right angles to the axial direction of the lower crosspiece 5. An elliptical through hole 6b is bored so that its long axis is located at a right angle when viewed from the opposite plane, and the curved surface 6c side of the through hole 6b is shaped like a mortar. The cross-sectional shape of the through hole 6b is fan-shaped facing the curved surface portion 6c, and when the screw 7 is inserted into the through hole 6b from the flat side opposite to the curved surface portion 6c of the mounting aid 6, as shown in FIG. The direction of the screw 7 can be changed in the longitudinal direction of the through hole 6b.

The mounting auxiliary material 6 formed as described above is the 14th
As shown in the figure and FIG. 15, the fitting is placed in the lower crosspiece 5 with the curved surface part 6c facing upward, and has a screw hole in the center for screwing in the screw 7 in the axial direction, and is fixed to the lower end of the pipe 3. By screwing the screws 7 that protrude upward from the through holes 6b of the mounting auxiliary material 6 and the through holes 5b of the lower crosspiece 5 into the screw holes of the mounting material 8, the pipe 3
The lower end of is attached to the lower crosspiece 5.

What is shown in Figures 13A and B is as shown in Figures 12A and B.
This is a modified example in which the shape of the mounting aid 6 shown in FIG. A through hole 6b is bored therein. It can be used in the same manner as shown in FIGS. 12A and 12B, and the overall shape may be elliptical instead of spherical.

The method for manufacturing stair handrails will be explained below.

Upper crosspiece 1, engaging member 2, pipe 3, mounting material 4,
Necessary parts such as the lower crosspiece 5, mounting auxiliary material 6, and screws 7 are transported to the site.

First, the upper crosspiece 1 is arranged on a staircase via a support or the like in accordance with the inclination of the staircase, and the lower crosspiece 5 is placed parallel to the upper crosspiece 1 at a required interval, and is connected to the supporting notch 1b of the upper crosspiece 1. The through hole 5b of the lower crosspiece 5 is aligned with the through hole 5b, and the stairway is installed via a fixing member or the like.

The engaging member 2 is inserted into the upper crosspiece 1 from the groove 1c with its longitudinal direction aligned with the axial direction of the upper crosspiece 1, and the direction is changed by 90 degrees within the upper crosspiece 1, as shown in FIGS. 5 and 6. As shown in FIG.
The engaging portion 2b of the engaging member 2 is swingable in the longitudinal direction.
It is supported by engaging. Therefore, since the engaging member 2 is engaged and supported by the upper crosspiece 1 so as to be swingable in the longitudinal direction of the upper crosspiece 1, even if the upper crosspiece 1 is inclined, it can be made vertical, and the pipe 3 can be made vertical. It is convenient to be able to change the direction of the upper crosspiece 1 in the longitudinal direction during installation, and the engaging portion 2 of the engaging member 2
The protruding surfaces on both sides of b are the partition wall 1 of the groove 1c of the upper crosspiece 1
Since it is in contact with d, the upper crosspiece 1 does not shift in the width direction.

As shown in FIG. 8, the screws 4b of the mounting material 4 are inserted into the screw holes 2c of the engaging member 2, which is engaged and supported in the supporting notch 1b of the upper crosspiece 1 so as to be swingable in the longitudinal direction of the upper crosspiece 1 as described above. As shown, screw the fitting part 4a of the fitting material 4.
By applying adhesive to the outer periphery of the pipe 3 and fitting the upper end of the pipe 3 as shown by the imaginary line in FIG. 8, the upper end of the pipe 3 is attached to the upper crosspiece 1 and held suspended. Alternatively, the pipe 3 may be screwed to the mounting member 4 by providing a screw hole in the upper end thereof. Therefore, the screw 4b of the attachment material 4
By changing the number of pitches screwed into the screw holes 2c of the engaging member 2, the longitudinal dimension of the pipe 3 can be finely adjusted, and even if there is an error in the longitudinal dimension of the pipe 3, it can be corrected on site. It is convenient as there is no need to do any work.

Next, at the lower crosspiece 5 where the lower end of the pipe 3 suspended and held by the upper crosspiece 1 is located, insert the mounting aid 6 into the lower crosspiece 5 from the groove 5c of the lower crosspiece 5 with the curved surface facing upward. , the ceiling surface of the lower crosspiece 5 and the curved surface of the mounting aid 6 are brought into contact with each other, and the through hole 6b of the mounting aid 6 and the through hole 5b of the lower crosspiece 5 are aligned. In this state, pass the screw 7 from below through the through hole 6b of the mounting aid 6 and the through hole 5b of the lower crosspiece 5, and screw the screw 7 into the screw hole of the fitting material 8 fixed to the lower end of the pipe 3. Then, the lower end of the pipe 3 is fixed to the lower crosspiece 5 as shown in FIGS. 14 and 15. At this time, since the curved surface part 6c of the mounting aid 6 contacts the ceiling surface of the lower crosspiece 5, and the cross-sectional shape of the through hole 6b of the mounting aid 6 is fan-shaped, even if the lower crosspiece 5 is inclined. The mounting auxiliary material 6 rotates along the ceiling surface of the lower crosspiece 5, and the screws 7 are easily screwed in as shown in FIG.
can be placed in a vertical state without causing any hindrance to the installation of the pipe 3 to the lower crosspiece 5, and
The same mounting auxiliary material 6 can accommodate any inclination of the lower crosspiece 5, thereby improving the efficiency of on-site work.

As described above, the upper ends of all the pipes 3 are attached to the upper crosspiece 1, and the lower ends of the pipes 3 are attached to the lower crosspiece 5, respectively.
Attach as shown in Figure 6 to create a handrail.

After that, if there is any distortion or twist in the handrail, it is corrected by tightening or loosening the screws 7.

Further, rubber gaskets are attached to the grooves 1c of the upper crosspiece 1 and the grooves 5c of the lower crosspiece 5, respectively, and finishing work such as painting is performed as necessary.

On the other hand, when disassembling the handrail, it can be easily done by reversing the above-mentioned procedure, and also partial disassembly can be easily performed and parts can be easily replaced.

The present invention is not limited to the illustrated and described embodiments; for example, the present invention can be applied to the production of handrails in which the lower end of the pipe (intervening member) is directly attached to the stairs without using a lower crosspiece. In addition to stairs, the present invention can be applied to the production of handrails for gently sloping passages for wheelchair users and people with disabilities, partitions (for example, partitions between parks and roads), etc.; It goes without saying that it is optional to use an intervening member such as a handrail having the shape of It goes without saying that various other changes may be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the handrail manufacturing method of the present invention, the handrail can be manufactured easily and in a short time without using special construction methods such as welding, and it is possible to manufacture the handrail easily and in a short time without using special construction methods such as welding. Handrails that require an angle, such as stairs, can be easily manufactured without changing tools depending on the angle, and the upper end or both upper and lower ends of the intervening member are attached with screws, making it easy to make adjustments on site. This reduces the cost required to manufacture handrails, and if the upper and lower crosspieces, intervening members, etc. are made of stainless steel, it is possible to obtain handrails that are superior in terms of strength and durability. , and various other excellent effects.

[Brief explanation of the drawing]

Fig. 1 is a developed view of the upper crosspiece used in the handrail manufacturing method of the present invention, Fig. 2 is a front view of the upper crosspiece as viewed from the - direction arrow in Fig. 3, and Fig. 3 is a - direction arrow view of Fig. 2.
4 is a perspective view of the engaging member used in the handrail manufacturing method of the present invention, and FIG. 5 is a front view showing the engaging member engaged with the upper crosspiece.
The - direction arrow view of the figure, Figure 6 is the - direction of Figure 5.
7 is a perspective view of the mounting material used in the handrail production method of the present invention; FIG. 8 is a cutaway front view showing the state in which the upper end of the pipe is attached to the upper crosspiece via the mounting material; Fig. 9 is a developed view of the lower crosspiece used in the handrail manufacturing method of the present invention, Fig. 10 is a front view of the lower crosspiece as viewed from the - direction arrow in Fig. 11, and Fig. 11 is a view of the lower crosspiece in the - direction arrow of Fig. 10. XI direction arrow view, FIG. 12A is a perspective view of the mounting aid used in the handrail manufacturing method of the present invention, FIG. 12B is a perspective view showing the state in which screws are inserted into the mounting aid, and FIG. 13 A and B show other examples of mounting aids; FIG. 13A is a front view, FIG. 13B is a view taken in the - direction of FIG. 13A;
Fig. 14 is a front view showing a state in which the lower end of the pipe is attached to the lower crosspiece with a screw through an installation auxiliary material, and a view taken in the XI-XI direction of Fig. 15, and Fig. 15 is a - direction arrow in Fig. 14. A perspective view, FIG. 16 is a vertical sectional view showing a state in which pipes are attached to the upper and lower crosspieces, and FIG. 17 is a view showing a handrail arranged on the stairs. In the figure, 1 is the upper crosspiece, 1a is the stainless steel plate, 1b
is a support notch, 1c is a groove, 1d is a partition wall, 2
2 is an engaging member, 2a is a rod-shaped member, 2b is an engaging portion, 2
c is a screw hole, 3 is a pipe (intervening member), 4 is a mounting material, 4a is a fitting part, 4b is a screw, 5 is a lower crosspiece,
5a is a stainless steel plate, 5b is a through hole, 5c is a groove, 6 is a mounting aid, 6a is a kamaboko-shaped member, 6b
6d is a through hole, 6d is a sphere, 6e is a flat surface, 7 is a screw, and 8 is a fitting material.

Claims (1)

[Scope of Claims] 1. A groove 1c extending in the longitudinal direction is provided at the bottom of a hollow member having a polygonal cross-section, and arc-shaped supporting notches are provided at required intervals on the upper edge of the partition wall 1d extending on both sides of the groove 1c. 1b facing each other to form the upper crosspiece 1, grooves 5c extending in the longitudinal direction are provided at the bottom of the hollow member having a polygonal cross section, and grooves 5c extending in the longitudinal direction are provided at the upper surface at equal intervals with the supporting notches 1b of the upper crosspiece 1. Through hole 5b
to form a lower crosspiece 5, and connect the upper crosspiece 1 and the lower crosspiece 5 so that the lower crosspiece 5 is located directly below the upper crosspiece 1 with a required spacing and is parallel to the upper crosspiece 1. It is disposed at the handrail installation location, and then engages with the support notch 1b of the upper crosspiece 1 so as to be swingable in the longitudinal direction of the upper crosspiece 1 along the upright surface of the partition wall 1d of the upper crosspiece 1, and has a screw hole. 2c, and the engaging part 2b is formed in an arc shape so as to be able to slide within the supporting notch 1b. The engaging member 2 is inserted into the upper crosspiece 1 from the groove 1c and is oriented in the longitudinal direction. The upper end of the intervening member 3 for connecting and dividing the upper crosspiece 1 and the lower crosspiece 5 is supported by changing the engagement part 2b and engaging with the supporting notch 1b of the upper crosspiece 1. It is attached to the engaging member 2 through a mounting member 4 having a fitting portion 4a with the member 3 and a screw 4b that is screwed into the screw hole 2c of the engaging member 2, and then a curved surface having a curved surface portion 6c. The mounting auxiliary material 6 having a fan-shaped through hole 6b facing the section 6c is inserted into the lower crosspiece 5 from the groove 5c with its curved surface section 6c at the top, and the through hole 6b is inserted into the through hole 5b of the lower crosspiece 5. The curved surface portion 6c is pressed against the lower crosspiece 5, and the lower end of the intervening member 3 is fixed to the lower crosspiece 5 with the screw 7 via the mounting aid 6.The above procedure is repeated to attach a plurality of intervening members 3. The upper end of the upper crosspiece 1 and the intervening member 3
A handrail manufacturing method characterized in that the lower ends of the handrails are manufactured by attaching them to the lower crosspieces 5, respectively. 2. A groove 1c extending in the longitudinal direction is provided at the bottom of a hollow member having a polygonal cross-section, and arc-shaped supporting notches 1b are arranged opposite each other at required intervals on the upper edge of the partition wall 1d extending on both sides of the groove 1c. The upper crosspiece 1 is arranged at a handrail installation location, and then the upper crosspiece 1 is swingable in the longitudinal direction of the upper crosspiece 1 along the erected surface of the partition wall 1d of the upper crosspiece 1. The engaging portion 2 has a threaded hole 2c and is slidable within the supporting notch 1b.
The engaging member 2 having an arcuate shape b is inserted into the upper crosspiece 1 through the groove 1c, and the engaging portion 2b is engaged with the support notch 1b of the upper crosspiece 1 by changing the direction with respect to the longitudinal direction. The upper end of the intervening member 3 for connecting and dividing the upper crosspiece 1 and the handrail installation location is screwed into the fitting portion 4a of the intervening member 3 and the screw hole 2c of the engaging member 2. The lower end of the intervening member 3 is attached to the handrail installation location via the mounting member 4 having screws 4b, and the upper ends of the plurality of intervening members 3 are attached to the upper crosspiece 1 by repeating the above-mentioned procedure. A method of manufacturing a handrail, characterized in that the lower end of the intervening member 3 is attached to each handrail installation location.