JPH0721704Y2 - handrail - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a handrail attached and used in a bathroom, a toilet or the like.

[Prior art]

Conventionally, as a handrail, a pipe made of metal such as stainless steel or brass having a straight portion and an elbow portion is known.

However, the metal pipe has a cold feeling peculiar to metal,
Its usability is not good.

Therefore, as shown in FIG. 8, a handrail having a straight portion 9 in which the synthetic resin pipe 1 is fitted and fixed to the outer periphery of the metal pipe 2 has come to be used.

Then, the handrail is attached to a predetermined position in a bathroom or the like as follows.

That is, in the straight portion 9, the bushes 36 each having the screw hole 360 at the axial center are fitted and fixed to both ends of the metal pipe 2, and the screw portion 4 embedded in the elbow portion 82 is screwed and fixed to the bush 36. To do.

That is, one end 41 of the threaded portion 4 is embedded and fixed to the elbow portion 82 by insert molding. Then, the other end
The protruding screw portion 4 of 42 is screwed and fixed in the screw hole 360 of the bush 36.

Further, as shown in FIG. 9, the bush 36 has caulking concave portions 361 at four central outer peripheral portions thereof.
The end portion 22 of the metal pipe 2 is crimped to. In this way, the locking portion 221 is formed at the end 22 of the metal pipe, and the bush 36 is firmly fitted and fixed.

In this way, the straight portion 9 and the elbow portion 82 are connected by the screw portion 4 at the joint portion thereof.

On the other hand, the elbow portion 82 has a flange portion 80 at the other end and is fixed to a mounting surface 83 such as a bathroom by a screw 84.

A fixing plate 85 and a screw receiver 34 fixed by a caulking portion 851 at the tip of the fixing plate are provided on the flange portion 80 in a protruding manner.

Then, the screw portion 43 of the elbow portion 82 is screwed and fixed to the screw receiver 34.

[Problems to be solved]

However, the above-mentioned conventional handrail has the following problems.

That is, as shown in FIG. 7, when the elbow parts 81 and 82 are screwed in at both ends of the handrail, the elbow parts are not always in the same direction.

Therefore, the screw portion 4 of the one elbow portion 82 can be slightly rotated to loosen the connection so that the elbow portion 81 can be oriented in the same direction.
However, when this method is adopted, a gap 70 is generated in the joint portion 7, and the length of the handrail is increased by the gap 70.

On the other hand, if the threaded portion 4 of the elbow portion 82 is strongly tightened, excessive internal stress may be generated at the joint between the elbow portion 82 and the straight portion 9, causing buckling, cracking or damage.

Further, in the above description, the case where the elbow portions 81 and 82 are oriented in the same direction is shown, but it is often desired to set both elbows in a desired desired direction, for example, by directing them in a 90-degree direction.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a handrail that can mount the elbow portion in a desired predetermined direction without causing a gap and internal stress in the joint portion. It is a thing.

[Means for solving problems]

The present invention is a handrail having a straight portion and an elbow portion, and bushes having screw holes at the shaft centers are fitted and fixed to both ends of the straight portion, one bush is fixed, and the other bush is fixed. Is rotatably caulked, and the elbow portions are screwed and fixed to the screw holes of the both bushes, respectively, and the elbow portions are arranged at desired end portions at both ends of the straight portion. It is on the characteristic handrail.

What is most noticeable in the present invention is that one bush is fixed at both ends of the straight portion, and the other bush is rotatably caulked, and the elbow portion is screwed and fixed to the thread portion of the bush. The elbows at both ends are arranged in a desired predetermined direction.

The bushes are fitted and fixed in the metal pipe by caulking the metal pipe at both ends of the metal pipe, for example.

The term “rotatable” means that the elbow portion can be further rotated at least about one rotation after the screw portion is tightened when the straight portion and the elbow portion are joined. For that purpose, it is necessary to make the degree of caulking slightly looser than that of one of the bushes.

The above-mentioned screw-fixing refers to screw-fixing a screw part embedded in the elbow part by insert molding in the screw hole of the bush fitted to both ends of the straight part.

Arranging in the desired predetermined direction means that, at both ends of the straight portion, for example, the flange portion arranged at the tip of the elbow portion is oriented in the same direction or both elbow portions are oriented in directions different by 90 degrees from each other. That is.

There is also a mode in which one to several straight portions are provided with an elbow portion in the middle portion. Further, the elbow portion may be, for example, a T-shaped one, or may have a form without a flange portion. An elbow portion having a flange portion is arranged at the end.

[Action and effect]

In the handrail according to the present invention, first, bushes having screw holes centered on the shaft are fitted and fixed to both ends of the straight portion. Next, at this time, one bush is firmly fixed.
The other bush is caulked so that it is slightly loose.

Next, at both ends of the straight portion, the threaded portion of the elbow portion is screwed into the threaded hole of the bush.

Then, at both ends of the straight portion, the above-mentioned pivotally caulked bushes are slightly rotated so that both elbow portions are in a desired predetermined direction. As a result, both elbow parts are arranged in the desired predetermined direction.

As described above, according to the present invention, one of the bushes can be slightly rotated, and the elbow portions at both ends are aligned by the movement of the bush. Therefore, there is no gap between the elbow part and the straight part, no internal strain at the joint, and no change in the length of the handrail as in the conventional case.

Therefore, according to the present invention, it is possible to provide a handrail in which the elbow portion can be attached in a desired predetermined direction without causing a gap and internal stress in the joint portion.

〔Example〕

First Embodiment A handrail according to this embodiment will be described with reference to FIGS. 1 to 3.

That is, the handrail of this example has a straight portion 9 and elbow portions 81 and 82 at both ends thereof, as shown in FIGS. 1 and 2. The straight portion 9 is composed of a metal pipe 2 and a synthetic resin pipe 1 fitted to the outer periphery of the metal pipe 2. The elbow portion 8 is made of synthetic resin in which the screw portion 4 is embedded.

Then, at both ends of the straight portion 9, as shown in FIGS. 1 and 3, a bush having a screw hole 35 at the center of the shaft is provided.
It is made by fitting and fixing 3,30.

It should be noted here that, as shown in FIG. 1, the bush 30 is formed into a V-shape at the joint 7 between the cylindrical straight portion 9 and the elbow portion 82. That is, it is bent and firmly crimped and fixed. In addition, the bush 3 at the other end is swaged so as to be rotatable, and is slightly loosely fixed.

That is, the bush 3 is composed of the caulking cushioning portion 31 having a relatively small diameter and the fitting fixing portion 32 having a relatively large diameter.

The fitting fixing portion 32 is fitted in the metal pipe 2. Further, the buffer portion 31 has a tip portion of the metal pipe 2.
21 is bent in a V shape, and a slight gap 5 is provided between the tip portion 21 and the buffer portion 31.

Then, at this time, the bush 30 on one fixed side is, for example,
Firmly fix it in the metal pipe so that the elbow does not rotate even if a turning force of 100 kgcm is applied. Further, the bush 3 on the other rotating side is loosely fixed by caulking so that the elbow portion rotates when a turning force of, for example, 30 to 60 kgcm is applied.

Also, the screw holes of the bushes 3 and 30 have elbow parts 81 and 82, respectively.
The threaded portion 4 embedded in is screwed. Also, the elbow part 81,8
2 has a flange portion 80.

Next, the function and effect of the handrail of this example will be described.

In this example, the elbow parts 81 and 82 are arranged in the same direction as shown in FIG.

First, when attaching the handrail to a bathroom or the like, first, in the fixed-side bush 30, the screw portion 4 of the elbow portion 82 is firmly screwed and fixed in the screw hole 35.

Next, in the bush 3 on the rotatable side, the screw hole 35
The screw portion 4 of the elbow portion 81 is screwed into the inside. When the elbow portions 81 and 82 are not oriented in the same direction when the screw 4 is completely tightened, the elbow portion 81 on the bush 3 side is
Is rotated until it becomes the same direction as the elbow portion 82 on the fixed side. As a result, both elbow parts 81 and 82 are oriented in the same direction (see FIG. 2).

Next, the elbow parts 81 and 82 are attached to the attachment surface of a bathroom, toilet, or the like.

As described above, according to the present embodiment, since the bush 3 is slightly rotatable, it is possible to obtain a handrail in which the elbow portion can be attached in the same direction without causing a gap and internal stress in the joint portion. .

Second Embodiment A handrail according to this embodiment will be described with reference to FIG.

That is, the handrail of this example uses the rotating bush 33 having an annular recessed groove 331 on the entire circumference of the central outer peripheral portion, instead of the bush 3 in the first embodiment. And
The end of the metal pipe 2 is caulked in the annular recessed groove 331. The other structure is the same as that of the first embodiment. In addition, the flange portion 80 at the other end of the elbow portion 82 is
When fixed to the mounting surface 83 of a bathroom or the like, the same construction as the conventional handrail was used (see FIG. 8).

Therefore, in this example, the rotating bush 33 is provided with an annular recessed groove 331. Therefore, similar to the bush 3 on the rotatable side in the first embodiment, approximately 20 to 50 kgcm.
Then, the elbow 81 is rotated until it becomes the same direction as the elbow on the fixed side. At this time, the rotating bush 33 is
The metal pipe 2 swaged in the annular recessed groove 331 is guided by the end portion of the metal pipe 2 to rotate. As a result, the elbow 81 can be oriented in the same direction as the fixed elbow (not shown) (see FIG. 2).

Therefore, according to this example, since the annular recessed groove is provided, both elbow parts can be arranged in the same desired direction with a rotational force that is substantially smaller than that in the first embodiment.

Third Embodiment A handrail according to this embodiment will be described with reference to FIG.

That is, the handrail of the present example has straight portions 90, 90 having a T-shaped mounting portion 61 in the central portion, instead of the straight portion 9 of the first embodiment. Other configurations are
The same as in the first embodiment.

Thus, in this example, the straight portions 90 and 91 have the T-shaped mounting portion 61 having the flange 80 in the center thereof. Therefore, the elbow portions 81 and 82 and the T-shaped attachment portion 61
It is necessary to dispose the flange portion 80 and the flange portion 80 in the same direction.

Therefore, similar to the joint portion in the first embodiment, the flange portions 80 are oriented in the same direction as follows. First,
When joining the elbow portion 81 and the straight portion 90,
The bush 30 on the fixed side is fixed in the straight portion 90.

Next, to join the T-shaped mounting portion 61 and the straight portion 90, the rotatable bush 3 is fixed to the other end of the straight portion 90. Then, the flange 80 of the elbow portion 82 and the flange portion 80 of the T-shaped mounting portion 61 are oriented in the same direction.

Next, when joining the T-shaped mounting portion 61 and the straight portion 91, first, the bush 30 on the fixed side is fixed in the straight portion 91. Next, the rotatable bush 3 is fixed to the other end of the straight portion 91. Next, the elbow 81 is joined to the rotatable bush 3. Then, the flange 80 of the elbow 82 and the flange 80 of the elbow 81 and the T-shaped mounting portion 61 are oriented in the same direction.

According to this embodiment, in addition to the effect of the first embodiment, the flange portion 80 of the T-shaped attachment portion 61 can be arranged in the same direction as the elbow portions 81 and 82.

Fourth Embodiment A handrail according to this embodiment will be described with reference to FIG.

That is, the handrail of this embodiment uses straight portions 92 and 93 having an elbow 86 in the middle portion, instead of the straight portion 9 in the first embodiment. The other structure is the same as that of the first embodiment.

Thus, in this example, at both ends of the straight portions 92 and 93, the fixed bush 30 is fixed to one side and the rotatable bush 3 is fixed to the other side. According to this example, in addition to the effects of the first example, the two elbow parts 81, 82 are mutually connected to 90
You can turn in different directions. Then, the handrail is attached to the wall 87 and the floor 88 as shown in FIG.

[Brief description of drawings]

1 to 3 show the handrail of the first embodiment, FIG. 1 is a sectional view thereof, FIG. 2 is a front view thereof, and FIG. 3 is A of FIG.
FIG. 4 is a sectional view of the handrail according to the second embodiment, FIG. 5 is a front view of the handrail according to the third embodiment,
FIG. 6 is a perspective view of a handrail according to the fourth embodiment, and FIGS.
FIG. 9 shows a conventional handrail, FIG. 7 is a perspective view thereof, FIG. 8 is a sectional view thereof, and FIG. 9 is a perspective view of a bush. 1 …… Synthetic resin pipe, 2 …… Metal pipe, 3,30,33…
… Bush, 4 …… screw part, 7 …… joint part, 8,81,82 …… elbow part, 9,90,91,92,93 …… straight part,

Claims (1)

[Scope of utility model registration request] 1. A handrail having a straight portion and an elbow portion, wherein bushes having screw holes at the shaft center are fitted and fixed to both ends of the straight portion, one bush is fixed and the other is fixed. The bushes are rotatably caulked, and the elbow portions are screwed and fixed in the screw holes of the both bushes, respectively, and the elbow portions are arranged at both ends of the straight portion in a desired predetermined direction. Railing characterized by.