JPH09296580A - Handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the safety by providing a grip bar on which a rugged surface of a lattice pattern is formed on an outer circumferential surface of a synthetic resin covered layer provided on the circumference of a metallic pipe. SOLUTION: A handrail comprises a pair of holders 1 to be fixed to a wall, and a grip bar 2 to be held by the holders 1. The bar 2 comprises a synthetic resin inner skin layer to cover the outer circumferential surface of a metallic pipe, and an outer skin layer 5 formed on the circumference thereof, a projected bar of the pattern of the diamond lattice shape is swollen out of the surface of the layer 5 by spirally winding a plurality of wires 6 of large diameter between layers, and the diamond is of the size of a part to which a human fingertip is placed. Thus, even when the fingertip is placed on the circumferential surface of the bar 2 in any direction, the fingertip can be hooked to the projected bar, or the fingertip can be firmly pushed in the diamond part. The grip bar can surely be held without generating any slip both in the circumferential direction and in the axial direction, and the handrail can be fixed to the wall in the desired attitude.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail fixed to a wall of a bathroom or a toilet, for example, and more particularly to a handrail anti-slip structure which is not slippery and can be used safely when held by a hand. Regarding

[0002]

2. Description of the Related Art Conventionally, various types of handrails have been used as handrails that are attached to walls of bathrooms, toilets, etc., and most of them are designed to be easy to hold by hand and not slippery even when wet with water. Is.

For example, Japanese Utility Model Laid-Open No. 59-79097 discloses a handrail in which a portion to be gripped by a hand is formed as a plurality of grooves in the axial direction, and Japanese Utility Model Laid-Open No. 6-58030 discloses a handrail with a circle. A handrail having a plurality of recesses formed in the circumferential direction is described. Those described in these publications are
In both cases, the grip has multiple grooves,
It is intended to prevent slipping by making it possible to obtain a large amount of catching force and frictional force on the palm.

Further, instead of such a groove, an actual flat plate 5
As described in JP-A-35941, there is also a device in which a large number of small circular depressions are provided on the entire surface of the grip portion so as to prevent slippage.

[0005]

However, in the case where the groove is formed in the axial direction, the groove is arranged around the handrail, so that the grip force in the circumferential direction is kept high, but the handrail is kept. The catching force in the longitudinal direction tends to be weak. Therefore, for example, when the handrail is attached to the side wall of the bathtub in a vertical posture, when the handrail is gripped and stands up from the bathtub, the hand becomes slippery.

Further, in the case where a plurality of recessed lines are formed in the circumferential direction of the handrail, although it is effective against slipping in the axial direction contrary to the above example, there is not much space around the handrail. Unless you hold it firmly, it will slip. For this reason, there is a high possibility that a handrail may be attached to the side of the bathtub in a horizontal posture so that the hand slips when entering or leaving the bathtub.

As described above, when the groove is formed only in the axial direction or the circumferential direction, slipping may occur depending on the mounting posture of the handrail, and the directionality is limited when the handrail is installed. I will receive it.

On the other hand, in the case where the handrail has a large number of depressions on its surface, the directionality can be neglected as compared with the above two examples, and therefore the handrail installation posture is not restricted. However, since the size and depth of the circular depression are regulated to some extent, it cannot be said that the fingertip is caught sufficiently. In particular, when a handrail is installed in the bathroom, since the dent is relatively small, drops tend to adhere and accumulate due to surface tension, and even if you put your fingertip on it, your hand may slip due to the accumulated water. .

As described above, in the conventional handrail, the effect of preventing slippage is weakened depending on the directionality of the handrail, and it is sufficient to provide a large number of depressions so as to eliminate obstacles due to such directionality. There is a problem that it cannot prevent slipping.

The problem to be solved in the present invention is to enable safe use without slipping regardless of the posture of the handrail or the direction in which the handrail is gripped. .

[0011]

SUMMARY OF THE INVENTION The present invention is a handrail provided with a grip bar having a synthetic resin coating layer formed around a metal pipe, wherein the outer peripheral surface of the coating layer has a grid pattern of irregularities. It is characterized by forming a surface.

In such a structure, the lattice pattern can be formed by a plurality of ridges protruding from the surface of the coating layer. In this case, the coating layer is composed of an endothelial layer that is bonded around the pipe and an outer skin layer that is bonded to the outer periphery of the inner skin layer, and a plurality of wire rods are interposed between the inner skin layer and the outer skin layer. The bulging portion of the outer skin layer due to the interposition of the wire rod can be formed as a convex strip having a lattice pattern.

Further, the size of the lattice of the lattice pattern can be set so as to include it when the fingertip of a person hits it.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION If the uneven surface provided on the outer peripheral surface of the coating layer is formed in a lattice pattern such as a diamond shape or a square shape,
It can be set so that each side of the pattern forming each lattice intersects the axial direction and the circumferential direction of the grip bar.
Therefore, it is possible to reliably grip the uneven grid with the hand no matter which direction the grip bar is gripped, and it is possible to prevent the grip bar from slipping in the axial direction and the circumferential direction.

In the case where the lattice pattern is formed by a plurality of ridges on the peripheral surface of the coating layer, these ridges can be used as slip prevention. Then, by forming a ridge by interposing a wire between the inner layer and the outer layer made of synthetic resin, it is possible to obtain a lattice pattern of various shapes simply by changing the arrangement of the wire, It is possible to make a convex strip with an optimal lattice pattern according to the outer diameter of the pipe and the application.

Further, when the size of the lattice is about the fingertips of a person, the fingertips can abut against these lattices, and the fingertips can be easily hooked on the convex strips around them.

[0017]

1 is a longitudinal sectional view of a handrail according to the present invention, and FIG. 2 is a schematic perspective view showing its appearance.

In the figure, the handrail is composed of a pair of holders 1 for fixing to the wall and a grip bar 2 held by these holders 1. Holder 1 is
The plug 1a is screwed to one end facing the wall, and the plug 1
Screw 1 penetrating the fixing ring 1b constrained by a
It is fixed to the wall by c.

The grip bar 2 has a triple tube structure composed of a synthetic resin inner layer 4 covering the outer peripheral surface of a metal pipe 3 and an outer skin layer 5 formed around the inner layer 4, and the inner skin layer 4 and the outer skin layer 5 are formed. And a plurality of wire rods 6 each having a large diameter are spirally wound between and. As the wire rod 6, for example, a reinforcing thread enclosed in a shower hose in a conventional shower device or the like can be used.

As shown in FIG. 3 (longitudinal sectional view taken along the line AA in FIG. 1), the total number of the wire rods 6 is 8, and the wire rods 6 are arranged around the endothelial layer 4 with a constant pitch interval. As shown in FIG. 4, each of these wire rods 6 forms a rhombic mesh, and in the outer skin layer 5 corresponding to the thickness of these wire rods 6, the ribs 5a having a diamond-shaped lattice pattern are formed. Bulges from the surface of.

In order to manufacture such a grip bar 2, a long product of the endothelial layer 4 which has been formed in a tubular shape in advance is flown to a production line and a wire rod 6 is attached to the peripheral surface thereof while knitting in a spiral shape. An outer skin layer 5 in which a wire 6 is resin-sealed by coating a synthetic resin by an extrusion molding machine arranged downstream.
Is formed and then integrated with the pipe 3. The integration into the pipe 3 is performed by injecting air into the synthetic resin tube of the inner layer 4 and the outer layer 5 in which the wire 6 is resin-sealed to increase the inner diameter, and the pipe 3 is inserted into the tube.
Can be obtained as a part of the grip bar 2 by inserting and joining them together and cutting the whole into a predetermined length.

The ridges 5a which bulge on the surface by sealing the wire 6 between the inner skin layer 4 and the outer skin layer 5 have a rhombic pattern as shown in FIG. Since each wire 6 runs spirally around the peripheral surface of the endothelial layer 4, none of the four sides forming each rhombus is parallel to the axial direction of the grip bar 2 and the circumferential direction. However, it can be twisted and crossed. Further, the size of the rhombus defined by the four wire rods 6 in total can be arbitrarily changed depending on the respective intervals of the wire rods 6 around the endothelial layer 4. Therefore, it is possible to appropriately set the size of the rhombus in accordance with the size of the outer diameter of the pipe 3, and it is preferable to set it to about the size of the portion that the human fingertip touches.

In the above structure, the convex strips 5a forming a rhombic pattern on the surface of the grip bar 2 have a pattern intersecting the axial direction and the circumferential direction of the grip bar 2 as shown in FIG. Is forming. For this reason, for example, when the grip bar 1 is fixed to the wall in a vertical posture, the ridges 5a running in a grid pattern are formed when the grip bar 1 is grasped from the lower side or the front side. You can hang your fingertips securely.

That is, since the ridges 5a are not arranged in parallel in the axial direction or arranged in the circumferential direction and have a rhombic lattice pattern, the ridges 5a forming one rhombus are adjacent to each other. The two sides that meet are in the axial direction of the grip bar 2 <,
It also has a positional relationship of <,> in the circumferential direction as well. Therefore, no matter which direction the fingertip is applied to the peripheral surface of the grip bar 2, the fingertip can be applied to the ridge 5a or the fingertip can be strongly pushed into the rhombus portion.
It can be gripped both circumferentially and axially without slippage. Therefore, whether the posture of the grip bar 2 is vertical or horizontal, and the direction in which the hand is extended and grasped is stable, when the grip bar 2 is stably grasped and the user goes in and out of the bathtub, etc. Can stabilize and operate.

FIG. 5 shows another example of the arrangement of the convex stripes. (A) of the figure is an external view showing the main part of the grip bar 2, and (b) of the figure.
FIG. 4 is a sectional view taken along the line BB of FIG.

In this example, the first wire rods 7a running in the circumferential direction are arranged between the inner skin layer 4 and the outer skin layer 5 at intervals in the axial direction, and the second wire rods 7b running in the axial direction are circumferentially arranged. They are arranged at a pitch equal to the direction. By the arrangement of the first and second wire rods 7a and 7b as described above, a square lattice pattern is formed as shown in FIG.
And vertical ridges 8b are formed. Therefore, the lateral ridge 8a
Functions as an anti-slip in the axial direction of the grip bar 2, and the vertical ridges 8b can serve as anti-slip in the circumferential direction, so that the grip bar 2 can be gripped without slipping as in the previous example. .

In the above embodiments, the grid pattern is formed by the interposition of the wire rods 6, 7a, 7b, and the ridges 5a, 8 of the outer skin layer 5 are formed.
Although it is formed of a and 8b, the surface shape may be inverted. That is, in FIG. 2, a portion in which the ridge 5a runs is cut out as a groove recessed in a slit shape, and these grooves themselves serve as partition lines of the lattice, so that these grooves can be used as a slip stopper. Is possible.

Further, as shown in FIG. 1, the holder 1 has a cylindrical joint seat 1d which is inserted into the pipe 3 of the grip bar 2.
Is formed, and the holder 1 externally inserted into the joint seat 1d is connected to the grip bar 2 by a fixing screw 1e which is screwed from below. A decorative edge 1f protruding as an arcuate cross section is provided on the outer periphery of the holder 1 at a portion where the end surface of the grip bar 2 faces, and the inner periphery of the decorative edge 1f and the outer peripheral surface of the joint seat 1d are separated from each other. Insert the end of the grip bar 2 between them.

In the connection structure of the holder 1 and the grip bar 2 as described above, the grip bar 2 is enlarged as shown in FIG.
Assuming that the end portion of the grip bar 2 does not abut the portion between the outer periphery of the joint seat 1d and the inner periphery of the decorative edge 1f, a gap is formed between the end surface of the grip bar 2 and the holder 1. Can be the expansion allowance. Therefore, even if the grip bar 2 expands due to high temperature, the grip bar 2 is absorbed by the expansion margin, and the grip bar 2 is not subjected to a compression load. Further, even if the grip bar 2 contracts due to a low temperature, the decorative edge 1f is not covered by the outer skin layer 5.
Since the outer peripheral surface of the grip bar 2 is covered, the outer appearance of the grip bar 2 will not appear if a gap does not come out of the decorative edge 1f.

Furthermore, even if the joint bar 1d and the pipe 3 are assembled with the core misaligned, the grip bar 2 can be rotated around the outer peripheral surface of the joint seat 1d, so that the grip bar 2 and the fixing screw 1e can be rotated. Positioning at the time of connection can be performed without any trouble. Further, since the decorative edge 1f should have a size that slightly covers the end portion of the grip bar 2, the decorative edge 1f does not interfere with use.

[0031]

According to the present invention, since the lattice pattern is formed on the peripheral surface of the grip bar by a convex strip or the like, no matter which direction the grip bar is gripped, no slip occurs, and the surface of the grip bar or Even if your hand is wet, you can hold it securely with a stable grip, and you can safely leave your body and use it safely even when it is used for assistance when entering and leaving the bathtub, for example.

Further, even if the direction of the grip bar changes, the fingertip can be reliably hung on the ridge when gripping with the hand, so that the grip bar can be fixed to the wall in a horizontal, vertical or diagonal posture. Therefore, it is possible to obtain equipment in which the posture of the handrail is not restricted.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a handrail according to the present invention.

FIG. 2 is an external perspective view of a handrail.

FIG. 3 is a vertical sectional view taken along the line AA of FIG.

FIG. 4 is a view showing a diamond-shaped ridge formed on the surface of the grip bar.

FIG. 5 is an example in which a quadrangular grid-shaped convex strip is provided by two wires, and FIG. 5 (a) is an external view of the main part thereof.
FIG. 16B is a vertical sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1: Holder 2: Grip bar 3: Pipe 4: Endothelial layer 5: Outer skin layer 5a: Convex strip 6: Wire rod 7a: First wire rod 7b: Second wire rod 8a: Horizontal convex strip 8b: Vertical convex strip

Claims (4)

[Claims] 1. A handrail including a grip bar having a synthetic resin coating layer formed around a metal pipe, wherein the outer circumferential surface of the coating layer has a grid pattern of irregularities. . 2. The handrail according to claim 1, wherein the grid pattern is formed by a plurality of ridges protruding from the surface of the coating layer. 3. The covering layer is composed of an inner skin layer bonded around the pipe and an outer skin layer bonded to the outer periphery of the inner skin layer, and a plurality of wire rods are provided between the inner skin layer and the outer skin layer. 3. The interposition, and the bulging portion of the outer skin layer due to the interposition of these wire rods is formed as a ridge that exhibits the lattice pattern.
Handrails listed. 4. The size of the lattice of the lattice pattern is set to be included when a human fingertip hits it.
To the handrail described in 3 above.