JP2001323622A - Holding-to bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensively manufacturable holding-to bar capable of preventing a user from feeling cold even when he grips it in a cold season such as winter and changing an outside diameter of a holding part. SOLUTION: This holding-to bar 11 is provided in a building for use. It has a mounting part 14 and the holding part 16 provided additionally and consists of a holding bar main body 13 formed by a metallic pipe and a covered layer 18 adhering closely so as to cover whole periphery of the holding part 16 and formed by a thermally shrinking tube made of thermoplastic plastic.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catch rod used in a building or the like.

[0002] Here, the catch bar includes an outdoor catch bar, a balustrade for stairs, a balustrade, and an auxiliary catch bar which has a nursing effect on a sick person or an elderly person in a bathroom, a washroom, a toilet or the like.

A heat-shrinkable tube is a tube formed by heating so that the tube diameter is reduced to a small value. The previously formed thin tube is cooled and solidified in a state where the tube is expanded, and then reheated. It has the characteristic of returning to the original state.

[0004]

2. Description of the Related Art Conventionally, catching rods such as handrails and balustrades which are attached to a building and used are formed of a metal tube. However, since it is made of metal, when it is used in a cold season such as winter, it may be cold and uncomfortable when the user grips it. Also, as such catching rods, those having different pipe diameters depending on the user's physique and the place where they are used have been manufactured and constructed so that the user can easily catch them.

Further, since the catch rod is made of metal, it is necessary to subject the surface of the catch rod to polishing treatment such as buffing in the final step.

In view of the above, the present invention has been made to provide a catch rod which does not feel cold even when gripped in a cold season such as winter, has a changeable outer diameter of the catch portion, and can be manufactured at low cost. Aim.

[0007]

The present invention solves the above-mentioned problems by the following constitutions.

[0008] A catch rod used by being attached to a building or the like, which has an attachment portion for attachment and a catch portion, and forms a catch rod main body formed of a metal tube and the entire periphery of the catch portion. And a cover layer formed of a heat-shrinkable tube made of a thermoplastic plastic and adhered so as to cover.

[0009] The thermoplastic resin may be an olefin-based plastic.

Further, the thermoplastic plastic may contain a coloring pigment and / or a luminous pigment.

Further, the catching portion may be provided with a convex portion or a concave portion on the outer peripheral surface of the catch rod body.

Further, it is preferable that the above-mentioned catch rod is manufactured by the following method.

[0013] A heat-shrinkable tube made of a thermoplastic plastic having an inner diameter of 1.2 to 2 times the outer diameter of the catch rod main body is externally provided on a catching portion of the catch rod main body formed of a metal tube. Is heated in a heating furnace together with the heat-shrinkable tube, the heat-shrinkable tube is shrunk in the heating furnace, and the heat-shrinkable tube is brought into close contact with the outer peripheral surface of the catch portion to form a coating layer.

[0014]

The catching rod of the present invention has a covering layer formed of a heat-shrinkable tube made of thermoplastic plastic, which is closely attached to the periphery of the catching portion so as to cover the entire circumference. Even when the user grasps the catching part in a cold season such as winter, the user does not feel cold and can use it comfortably. Also, there is no need to subject the surface to polishing treatment such as buffing, so that it can be manufactured at low cost. Furthermore, since the outer diameter of the catching portion can be changed by changing the thickness of the coating layer, even when it is desired to change the outer diameter of the catching portion according to the use mode, a metal pipe having the same pipe diameter as the catch rod body is used. This can be dealt with by changing the thickness of the coating layer used.

Further, it is preferable that the thermoplastic plastic is an olefin-based plastic, since dust is less likely to adhere to the covering portion and the appearance of the catch rod can be kept good for a long time.

Further, if the coloring pigment is contained in the thermoplastic, it can be harmonized with the place where the catch rod is attached, and if the luminous paint is contained in the thermoplastic, the catch rod can be used even in dark places such as at night. Is easy to recognize.

Further, if the catching portion is formed with a convex portion or a concave portion on the outer peripheral surface of the catching rod main body, the catching property (gripping property) is improved, and even when the catching rod is wet, slipping occurs. Difficult and suitable. Note that the same effect can be obtained even if irregularities are formed on the surface of the coating layer.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a catch rod 11 according to an embodiment of the present invention. The catch rod 11 includes a catch rod main body 13 formed of a substantially U-shaped metal tube having a substantially perfect circular cross section, and mounting portions 14 disposed at both ends of the catch rod main body 13. The vicinity of the central portion of the catch rod body 13 is formed in a bellows shape to be a catch portion 16, and the catch portion 16 includes a coating layer 18 adhered so as to cover the entire circumference. The mounting portion 14 has a plurality of mounting holes 14a.

The coating layer 18 is formed of a heat-shrinkable tube made of thermoplastic plastic, and is formed of an adhesive layer 2.
This is a configuration in which it is in close contact with the catching section 16 through the “0”.
Examples of the thermoplastic forming the coating layer 18 include:
The use of olefin-based plastics such as polyethylene and polypropylene polyaromers is lightweight, and
This is preferable because the heat conductivity is small. The thermoplastic used is not limited to the olefin resin, and soft polyvinyl chloride or the like can be used. However, it is preferable to use an olefin-based plastic from the viewpoints of environmental considerations and disposability. Further, since the olefin-based plastic is non-polar, it is preferable to form the coating layer with the olefin-based plastic because dust is less likely to adhere to the coating layer and the appearance of the catch rod can be kept good for a long time. To obtain the required shrinkage and wear resistance, the tensile elongation is 250% or more (preferably 300% or more) and the tensile strength is 9 MPa or more (preferably 11MPa).
It is preferable to use the olefin-based plastic described in (a) or more. Further, as the adhesive layer 20, the coating layer 18 is used.
The material is not particularly limited as long as it has adhesiveness to both the catch rod body 16 and the catch rod body 16.
When a polyethylene is used, a polyvinyl alcohol-based resin can be used as the adhesive layer 20. In addition, when the catching portion is formed to have irregularities (including dimple-warp-like projections), the adhesive layer does not need to be formed because the coating layer 18 contracts and adheres to the catching rod main body 16 at the time of manufacture. .

The olefin resin forming the coating layer 18 contains a coloring pigment and a luminous pigment. Any pigment can be used as the coloring pigment, and any pigment such as a zinc sulfide phosphor, a fluorescent dye such as rhodamine or eosin, or a fluorescent pigment such as rhodamine tungstate can be used as the luminous pigment. In the above embodiment, both the color pigment and the luminous pigment are contained, but one or both of them may not be contained. However, if the coating layer contains a coloring pigment, it can be harmonized with the place where the catch rod 11 is attached. If the phosphorescent paint is contained, the catch rod 11 can be easily recognized even in a dark place such as at night. Therefore, it is desirable to contain them, and it is more desirable to contain both.

The thickness of the coating layer 18 is usually 0.5
４4 mm (preferably 1 to 3 mm). 0.
If it is less than 5 mm, it is too thin and you can hold it in cold seasons such as winter.
Cold is transmitted, which is not desirable. By changing the thickness of the coating layer 18, the outer diameter of the catching section 16 can be changed. Therefore, even when the outer diameter of the catching section 16 is desired to be changed depending on the use mode, a pipe is used as the catch rod body 13. This can be achieved by using a metal tube having the same diameter and changing the thickness of the coating layer 18.

As the metal tube forming the catch rod 11, any one of a steel tube, an aluminum tube, a stainless steel tube and the like can be used. Further, a decoration process with a pattern such as a spiral, a stripe, or a lattice may be performed.

The cross section of the metal tube is usually a perfect circle, but may be an ellipse or a square pipe (triangular, rectangular, hexagonal, etc.).
When the shape is not a perfect circle, the productivity is lower than when the shape is a perfect circle. However, even if the catching portion is not formed in a bellows shape, the catching portion has a sufficient catching property in the axial direction (gripping property).
Is obtained.

As a specific mode of the catch rod 11 of the present embodiment, a steel pipe is used as the metal pipe, and the catch section 16 is used.
Is formed in a bellows shape of the outer beading,
It is preferably 0.3 to 2 mm (preferably 0.5 to 1.5 mm). If the thickness is too thin, a strength problem is liable to occur, and if the thickness is too thick, it leads to an increase in weight and is against the demand for resource saving.

The shape of the bellows forming the catching portion 16 is 1 mm thick and used by Japanese adults.
The outer diameter of the bellows in the catching portion 16 is 20 to 40 mm (preferably 25 to 35 mm), the height of the bellows is 2 to 5 mm (preferably 3 to 4 mm), and the outside of the catch rod body 13 in a portion where the bellows is not formed. The diameter is 15 to 30 mm (preferably 2
0 to 25 mm). If the outer diameter of the bellows is too large or too small, the gripping property will decrease, and if the height of the bellows is too low, the gripping property will decrease.

The catch rod 11 having the above-described structure is provided with a catch portion 16.
Is arranged around the entire circumference, and the covering layer 18 formed of a heat-shrinkable tube made of an olefin-based plastic is disposed. It can be used comfortably without feeling cold. Also, there is no need to subject the surface to polishing treatment such as buffing, so that it can be manufactured at low cost. Furthermore, since the outer diameter of the catching portion 16 can be changed by changing the thickness of the coating layer 18, even when it is desired to change the outer diameter of the catching portion 16 according to the usage mode, the pipe diameter is used as the catch rod body 13. This can be coped with by changing the thickness of the coating layer 18 using the same metal tube.

Further, in the illustrated example, the catching portion 16 is formed in a bellows shape composed of a plurality of cord-shaped ridges (outer beading), but is not limited to this. For example, a plurality of grooves (dents) ( It may be formed in a bellows shape made of internal beading), or a concave portion or a convex portion may be formed in one place over the entire circumference. Further, a configuration may be adopted in which only the covering portion is formed without providing the convex portion or the concave portion as the catch portion. However, if the catching portion 16 has a configuration in which a convex portion or a concave portion is provided on the outer peripheral surface of the catching rod body 13, the catching property (gripping property) is improved, and the catching rod is less likely to slip even when the catching rod is wet. It is suitable. The catch rod body 1
Even if a concave portion or a convex portion is provided in the covering portion 18 instead of 3,
Similar effects can be obtained.

Next, a method of manufacturing the catch rod 11 of the above embodiment will be described.

First, a catch rod body 1 formed of a steel pipe
3 is provided with an inner diameter of 1.2 to 2 times (preferably 1.4 to 1.8 times) the outer diameter of the catch rod main body 13, and an ethylene vinyl acetate-based As shown in FIG. 3, the polyethylene heat-shrinkable tube 22 on which the hot-melt adhesive layer 20 made of a resin is formed is covered. Then, the catch rod main body was put into a heating furnace together with the 13 polyethylene heat-shrinkable tube 22, and
5 to 1 at 0 to 140 ° C (preferably 120 to 135 ° C)
Heating is performed for 5 minutes (preferably 7 to 12 minutes) to shrink the heat-shrinkable tube 22 made of polyethylene, and at the same time, to adhere to the outer peripheral surface of the catching portion 16 via the adhesive layer 20 to form the coating layer 18. Then, it is taken out of the heating furnace and cooled to produce the catch rod 11 of the above embodiment.

At this time, the thickness of the heat-shrinkable tube 22 made of polyethylene is about 70% of the thickness of the coating layer 18 after the production, specifically, about 0.3 to 3 mm.
If the inner diameter of the heat-shrinkable tube 22 made of polyethylene is less than 1.2 times the outer diameter of the rod body 13, the exterior work is not easy, so it is preferable to be 1.2 times or more.
Further, as polyethylene, the tensile elongation is 250%.
Above (preferably 300% or more), tensile strength is 9MP
It is preferable to use one having a of at least a (preferably at least 11 MPa) because required shrinkage and abrasion resistance can be obtained.

In the above method, the heat-shrinkable tube is placed in a heating furnace to be heated and shrunk. However, the heating method is not limited to this method. Good. Since the covering portion can be easily formed by heating with a dryer or the like in this manner, if the catch rod of the present embodiment is formed in advance with the catch rod main body, a color matching the construction spot at the construction spot or the like is used. , A covering portion having a thickness and the like can be easily formed.

[Brief description of the drawings]

FIG. 1 is a plan view of a catch rod according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a catching portion of the catching rod of FIG. 1;

FIG. 3 is a schematic view showing a method of manufacturing the catch rod of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 A catch rod 13 A catch rod main body 14 Attaching part 16 A catch part 18 Coating layer 20 Adhesive layer

Continuation of the front page (72) Inventor Kimitaka Obata 2-7-11 Shirokane, Showa-ku, Nagoya-shi, Aichi F-term in Maruyasu Kogyo Co., Ltd. (reference) 2E101 HH04 KK01

Claims (5)

[Claims] 1. A catch rod used by being attached to a building or the like, the catch rod having an attachment portion for attachment and a catch portion, and a catch rod body formed of a metal tube; And a covering layer formed of a heat-shrinkable tube made of a thermoplastic plastic and adhered so as to cover the entire circumference. 2. The catch rod according to claim 1, wherein the thermoplastic is an olefin-based plastic. 3. The catch rod according to claim 1, wherein the thermoplastic plastic contains a color pigment and / or a luminous pigment. 4. The catch rod according to claim 1, wherein the catch portion is formed by providing a convex portion or a concave portion on an outer peripheral surface of the catch rod main body. 5. The method of manufacturing a catch rod according to claim 1, wherein the catch portion of the catch rod body formed of a metal tube includes:
A heat-shrinkable tube made of thermoplastic plastic having an inner diameter of 1.2 to 2 times the outer diameter of the catch rod main body is covered, and the catch rod main body is put into a heating furnace together with the heat-shrinkable tube and heated. A method for manufacturing a catch rod, comprising shrinking the heat-shrinkable tube in a heating furnace and closely contacting the outer peripheral surface of the catch portion to form a coating layer.