JP2024060996A - Lattice for handrail, handrail, and method of manufacturing handrail - Google Patents

Abstract

To improve value of a product by increasing an amount of change in appearance, including shades of color and brightness that vary with amount and angle of light rays.SOLUTION: An elongate lattice L comprising a handrail has a cylindrical portion 1 and a tapping hole 2 formed inside the cylindrical portion 1. The cylindrical portion 1 is formed so that the cross section in the transverse direction formed by a first face 11 extending at least in the longitudinal direction, a second face 12, a third face 13, and a fourth face 14 is asymmetrical. The width of the first face 11 is longer than the widths of the second face 12, third face 13, and fourth face 14, the first face 11 and third face 13 face each other in a non-parallel manner, and the angles formed by the first face 11 and second face 12 and by the first face 11 and fourth face 14 are acute.SELECTED DRAWING: Figure 2

Description

The present invention relates to a lattice that constitutes a handrail used in, for example, a building, a handrail to which this lattice is attached, and a method for manufacturing this handrail.

For example, one type of handrail installed on the exterior corridors and balconies of apartment buildings consists of multiple long, thin pieces of timber attached vertically to a frame at a specified interval. This type is designed to be safe, preventing people from falling from the exterior corridors and balconies, but the intervals are too wide, meaning that there is a lack of shielding from the outside, and the cross section of the timber is symmetrical, meaning that the exterior design is lacking.

On the other hand, Patent Document 1 discloses a handrail that is a hollow pentagonal lattice for a handrail, consisting of apexes A and B, sides C and D, and a base E, with an apex angle β of approximately 90° and a base angle γ of approximately 45°, with apexes A and B being the same length, sides C and D being longer than C, and with screw attachment ridges g, g' formed on the insides of sides C and D at opposing positions, and that is attached at equal intervals as horizontal bars, allowing incident light from above to pass through and blocking incident light and lines of sight from the horizontal and below (see paragraphs "0012", "0020", and Figure 3).

JP 2001-59264 A

However, in Patent Document 1, the side C of the lattice is parallel to the front surface, which corresponds to the outside of the handrail that receives the light rays and the line of sight, and furthermore, the inclination of the base side E of the upper lattice, which is located in the gap between the side C of the upper lattice and the side C of the lower lattice, and the inclination of the top side A of the lower lattice are symmetrical, so the appearance, including the color tone and brightness that change according to the amount and angle of light rays, tends to be monotonous, and it is difficult to expect the impression that the person looking at the handrail will have.

Even if the handrail structure is not complicated, the above impression can be changed by changing the shape, orientation, and arrangement of the lattice. In other words, the above-mentioned color tone and the pattern and amount of change in brightness depend on the shape, orientation, and arrangement of the lattice, and the inventors have come to the conclusion that these can be expected to improve the value of the handrail, and have realized that it is difficult for a person skilled in the art in this technical field to easily conceive of such differences.

The object of the present invention is to provide a lattice for handrails, a handrail, and a method for manufacturing a handrail that can be expected to increase the value of the product by increasing the amount of variation in appearance, including the color tone and brightness that change depending on the amount and angle of light.

In other words, the handrail lattice of the present invention is an elongated lattice that constitutes a handrail, and includes a cylindrical portion and a tapping hole formed inside the cylindrical portion, the cylindrical portion is formed so that the cross section in the short direction is asymmetrical with a first surface portion, a second surface portion, a third surface portion, and a fourth surface portion extending at least in the longitudinal direction, the width of the first surface portion is longer than the widths of the second surface portion, the third surface portion, and the fourth surface portion, the first surface portion and the third surface portion face each other non-parallel, and the angle formed by the first surface portion and the second surface portion and the angle formed by the first surface portion and the fourth surface portion are acute angles.

With this configuration, the amount and angle of light received by the first, second, third, and fourth surfaces vary depending on the orientation of the tubular portion, which is expected to have the effect of providing a wide variety of handrail designs. For example, if the first surface is attached so that it faces diagonally outside the handrail, the first, second, and fourth surfaces will each face in a different direction relative to the outside of the handrail, so the brightness of the handrail's surface will change depending on the viewing direction, and the way the wind passes through will change depending on the wind direction. In addition, the third surface can also be made to face the inside of the handrail in the same direction as the handrail, which is expected to have the effect of improving the impression consumers have of the handrail from the outside and/or inside.

It is also desirable that the tapping holes be provided at positions symmetrical to the left and right of the cross section.

With this configuration, the installation position and width do not change even if the orientation of the tubular portion is reversed left and right, so it is easy to, for example, install the lattice on the left and right sides of the entire handrail in different directions, or to install the lattice in different directions alternately. These differences affect the brightness of the handrail's surface and the way the air passes through it, which is expected to have the effect of improving the impression consumers have of the handrail from the outside.

The handrail of the present invention is also characterized by having multiple handrail lattices at predetermined intervals.

This configuration makes it possible to realize multiple variations in appearance and airflow depending on the orientation of the handrail lattice described above, and is expected to have the effect of increasing the added value of buildings, as it is easy to improve the impression that consumers have of the handrail from the outside and inside by taking into account the type, orientation, and location of the building, as well as their surrounding and natural environments.

It is also desirable that the handrail comprises a first lattice group that is attached in the same direction so that the third surface portion is located on the same plane, and a second lattice group that is attached in the opposite direction to the first lattice group and side-by-side with the first lattice group.

With this configuration, the orientation of the second surface of the lattice included in the first lattice group and the second surface of the lattice included in the second lattice group are symmetrical with respect to the third surface, so the brightness of the handrail surface and the way the air passes through them have a relative regularity, and it is expected that this will have the effect of creating a design that gives the handrail a sense of unity.

The method for manufacturing handrails in the present invention is characterized by including a step of attaching a first lattice group in the same orientation so that the third surface portion is located on the same plane, and a step of attaching a second lattice group in the opposite orientation and next to the first lattice group.

This configuration makes it easy to change the design of the handrail for at least two or more lattice bundles, and the orientation of lattices that have already been attached to the handrail can be easily changed. This not only makes it easier to meet customer demands, but is also expected to help reduce the burden of construction work, including renovations.

The buildings in which this invention can be used include, for example, apartment buildings, detached houses, temporary housing, schools, hospitals, elderly care facilities, facilities for the disabled, and various commercial facilities, and there are no limitations on structure or size, such as reinforced concrete, steel-reinforced concrete, steel frame, or wood construction.

The present invention is expected to increase the value of a product by increasing the amount of variation in appearance, including color tone and brightness, which change depending on the amount and angle of light.

FIG. 2 is a perspective view of a handrail according to an embodiment of the present invention. FIG. 2 is an enlarged horizontal cross-sectional view of a single lattice attached to the handrail. FIG. 4 is another enlarged horizontal cross-sectional view of the lattice alone. FIG. 2 is an enlarged horizontal cross-sectional view of a portion of the handrail. FIG. 13 is a diagram illustrating the effect of the handrail.

Below, with reference to Figures 1 to 5, we will explain a handrail lattice (hereinafter also referred to as the "main lattice") in one embodiment of the present invention, a handrail equipped with a main handrail lattice (hereinafter also referred to as the "main handrail"), and a manufacturing method for the main handrail. In these figures, where there are multiple identical parts, only one part is numbered. For ease of explanation, certain parts and lines leading to these parts are shown with hidden lines (dashed lines) or imaginary lines (two-dot chain lines). In the explanation, terms indicating directions such as up, down, side, vertical, and horizontal are basically based on a normal living space.

<Overview of this handrail H>
As shown in Fig. 1, the handrail H prevents people or objects from falling and separates adjacent spaces. It is equipped with a frame F installed at the end of the balcony of each room in an apartment building, and a lattice L attached to the frame F. The location of the handrail H is not limited to the balcony, but may be an outside corridor, rooftop, entrance, etc. The frame F may be any of those used for known handrails, and is not limited in shape, material, or size, but preferably has a width (depth) in the short direction that allows the lattice L to fit in and not protrude. The lattice L is oriented vertically relative to the frame F, but may also be oriented horizontally.

<Details of this lattice L>
As shown in FIG. 2, the lattice L has a cylindrical part 1 fixed to the frame F and a tapping hole 2 formed inside the cylindrical part 1 for fixing to the upper and lower frames of the frame F. The ratio of the width 1wa to the length 1wb in the horizontal cross section of the lattice L is 1:1 to 5:1, preferably 5:4 to 5:2, more preferably 3:2 to 3:1, and is 2:1 in FIG. 2. If the width 1wa is wider than 5:1, the lattice L is too flat and the reflection of light becomes monotonous, and there is a risk of vibration due to wind pressure from the outside of the balustrade H. The shape and/or dimensions of the outer periphery of the lattice L in the horizontal cross section are the same from one end to the other in the longitudinal direction, but may be different. The lattice L is made of metal such as aluminum or stainless steel, but may be made of resin or wood with a surface coating to reflect light, or may be made of a material different from the frame F.

The tubular section 1 is formed so that the cross section in the short direction is asymmetrical and approximately rectangular with a first surface section 11, a second surface section 12, a third surface section 13, and a fourth surface section 14 extending in the longitudinal direction, and may have chamfered portions at all or part of the corners between the surfaces, or may be formed into a rectangle with pentagons or more sides.

The width 11w of the first surface 11 of the cylindrical section 1 is the longest, followed by the width 13w of the third surface 13, the width 12w of the second surface 12, and the width 14w of the fourth surface 14. The first surface and the third surface are opposed to each other non-parallel, and the second surface and the fourth surface are opposed to each other non-parallel. With the third surface 13 as the reference, the first surface 11 is inclined, and the second surface 12 and the fourth surface 14 are inclined in a V-shape. The inclination of the first surface 11 with respect to the third surface 13 is 5 to 50°, preferably 10 to 40°, and more preferably 15 to 30°. If it is less than 5°, there is a risk of vibration due to wind pressure received from the outside of the handrail H, and if it is more than 50°, there is a risk of it protruding outward from the frame body.

In the cylindrical portion 1, the angle d1 between the first surface portion 11 and the second surface portion 12 and the angle d4 between the first surface portion 11 and the fourth surface portion 14 are acute angles (less than 90°), and the angle d2 between the third surface portion 13 and the second surface portion 12 and the angle d3 between the third surface portion 13 and the fourth surface portion 14 are obtuse angles (90° or more). The angle of angle d1 is the smallest, followed by the angle of angle d4, the angle of angle d3, and the angle of angle d2, but the angle of angle d2 and the angle of angle d3 may be the same.

With this configuration, the amount and angle of light received by the first surface 11, second surface 12, third surface 13, and fourth surface 14 vary depending on the orientation of the tubular portion 1, so that the effect of providing a wide variety of designs for the real handrail H can be expected. For example, if the first surface 11 is attached so that it faces the outside of the real handrail H at an angle, the first surface 11, second surface 12, and fourth surface 14 each face in a different direction relative to the outside of the real handrail H, so that the brightness of the surface of the real handrail H changes depending on the viewing direction, and the way the wind passes through it changes depending on the wind direction. In addition, the third surface 13 can also be made to face the same direction relative to the inside of the real handrail H, so that the effect of improving the impression that consumers have of the real handrail H from the outside and/or inside can be expected.

As shown in FIG. 2, the tapping holes 2 include a first tapping hole 21 located on the inner surface of the first surface 11 and a second tapping hole 22 located on the inner surface of the second surface 12, but only the first tapping hole 21 may be provided. The tapping holes 2 are molded integrally with the cylindrical portion 1, but may be welded or attached with adhesive as a separate member from the cylindrical portion 1. The tapping holes 2 may be formed in a rail shape from one end to the other end of the cylindrical portion 1, or may be formed in a spot shape on one end and the other end.

As shown in FIG. 3, the first tapping holes 21 are provided at positions symmetrical to the left and right of the cross section of the cylindrical portion 1. The position of the first tapping holes 21 may be based on the width of the cylindrical portion 1 as shown in FIG. 3(A), or may be based on the width of the third surface portion 13 as shown in FIG. 3(B).

With this configuration, the installation position and width do not change even if the orientation of the tubular portion 1 is reversed left and right, so it is easy to change the orientation of the lattice L on the left and right sides of the entire handrail H, for example, or to alternate between installing the lattice L. These differences affect the brightness of the surface of the handrail L and the way the air passes through it, so it is expected to have the effect of improving the impression that consumers have of the handrail L from the outside.

As shown in FIG. 4(A), the handrail H has a plurality of the lattices L at a predetermined interval. Specifically, the handrail H has a first lattice group La attached in the same direction so that the third surface portion 13 is located on the same plane, and a second lattice group Lb attached in the opposite direction to the first lattice group La side by side. The first surface portion 11 of the lattice L included in the first lattice group La and the first surface portion 11 of the lattice L included in the second lattice group Lb are oriented in opposite directions. The first lattice group La and the second lattice group Lb may include the same or different numbers of the lattices L, and may be attached to each frame body reversibly with the pillar F1 of the frame body F as the boundary, as shown in FIG. 4(B).

With this configuration, for example, as shown in Figure 5 (A), when viewed from the outside and at an angle of the main handrail H, the first lattice group La passes through to the inside of the main handrail H, making it easier to create a sense of depth and shadows, while the second lattice group Lb does not pass through to the inside of the main handrail H, making it easier to ensure privacy.

In addition, as shown in Figure 5 (B), when the line of sight is from the outside of the main handrail H to the front and in a diagonal direction, the first lattice group La may or may not pass through to the inside of the main handrail H, while the second lattice group Lb does not pass through to the inside of the main handrail H, which is expected to have the effect of easily creating a sense of depth and shadows that arise as the viewpoint moves.

In addition, as shown in Figure 5 (C), when looking from the inside of the handrail H toward the outside, if, for example, there is another residence on the right when viewed from the inside and the desired view is available on the left, the second lattice group Lb can be expected to achieve both of these effects by blocking the view from the residence and allowing the view to pass through, and furthermore, the first lattice group La can be expected to have the opposite effect to the second lattice group Lb by allowing the view from the residence to pass through and not allowing the view to pass through.

In other words, depending on the orientation of the lattice L, multiple variations in appearance and airflow can be achieved, and it is easy to improve the impression that consumers have of the handrail H from the outside and inside by taking into account the type, orientation, and location of the apartment building as well as the surrounding and natural environments, so the added value of the apartment building can be expected to be improved. Furthermore, since the orientation of the second surface portion 12 of the lattice L included in the first lattice group La and the second surface portion 12 of the lattice included in the second lattice group Lb is symmetrical with respect to the third surface portion 13, the brightness of the surface of the handrail H and the airflow will have a relative regularity, and the effect of creating a design such as a sense of unity of the handrail can be expected.

As shown in FIG. 4, the manufacturing method of the present handrail H includes a process of attaching the first lattice group La to the frame body F in the same orientation so that the third surface portion 13 of the present lattice L is positioned on the same plane, and a process of attaching the second lattice group Lb in the opposite orientation and next to the first lattice group La.

This configuration makes it easy to change the design of the handrail for at least two or more lattice bundles, and the orientation of the lattices L that have already been attached to the frame body F can be easily changed. This not only makes it easier to meet the needs of users, but is also expected to help reduce the burden of construction work, including renovation.

The lattice and handrails shown in this embodiment are not limited to the above, and include the position, shape, and dimensions of all parts, as well as the relationships between parts, as long as the same effect is obtained.

H: Handrail F: Frame F1: Pillar L: Lattice La: First lattice group, Lb: Second lattice group 1: Cylindrical portion 11: First surface portion, 12: Second surface portion, 13: Third surface portion, 14: Fourth surface portion 2: Tapping hole 21: First tapping hole, 22: Second tapping hole

Claims (5)

A long and narrow lattice that constitutes a handrail,
The device includes a cylindrical portion and a tapping hole formed inside the cylindrical portion,
The cylindrical portion is formed such that a cross section in a short side direction is asymmetrical with at least a first surface portion, a second surface portion, a third surface portion, and a fourth surface portion extending in a longitudinal direction,
The width of the first surface portion is greater than the widths of the second surface portion, the third surface portion, and the fourth surface portion;
The first surface portion and the third surface portion face each other non-parallel to each other,
A handrail grille, wherein an angle between the first surface portion and the second surface portion and an angle between the first surface portion and the fourth surface portion are acute angles. The handrail grille according to claim 1, characterized in that the tapping holes are provided at positions symmetrical on the left and right sides of the cross section. A handrail comprising a plurality of handrail lattices according to claim 2 at predetermined intervals. A first grating group is attached in the same direction so that the third surface portions are located on the same plane;
The handrail according to claim 3, further comprising a second lattice group that is inverted in orientation and is attached side by side with the first lattice group. attaching the first grating group in the same direction so that the third surface portions are located on the same plane;
and attaching a second lattice group in an inverted orientation and alongside the first lattice group.

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