JP3160760B2 - Handrail connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure at a bent portion such as a stair railing or a handrail in a corridor.

[0002]

2. Description of the Related Art FIG. 10 shows an arrangement of handrails on a staircase. The staircase handrail 1 is arranged along the staircase 2, and in the example shown here, the staircase handrail 1 has three linear handrail members 3a,
3b, 3c and two connecting members 4 connecting between them.
a and 4b. As the connecting member 4a for the corner portion, a member that bends at 90 ° in a plane position is used, and as the connecting member 4b for the slope portion, an appropriate bending angle (125 to 145) corresponding to the inclination angle (35 to 55 °) of the stairs is used. °).

[0003] The connecting member 4b for the gradient portion in the above,
As shown in FIG. 11, the curved cylindrical member 4 is obtained by being cut at an appropriate position on the site, and x, y, and
A bend angle that is gradually increased by being cut at the position z is obtained.

[0004]

However, as described above, it takes a great deal of time to cut the member at the correct position at the site so as to obtain a desired bending angle, and in particular, the cut surfaces are connected. It is very difficult to cut the end surface of the handrail member so that it faces directly at the time of connection.
In addition, there is a problem that the connection portion is distorted.

The present invention has been made in view of such a point, and an object of the present invention is to improve design of a handrail at a bent portion.

[0006]

In order to achieve the above object, according to the present invention, a handrail member is provided at both ends of a connecting member which is formed in a bent shape as a whole and has spherical surfaces at both ends. It is configured to be connected along the angle adjustable.

[0007] According to the above configuration, since the connecting member itself has a bent shape, the outer shape line extending from one handrail member to the other handrail member changes smoothly, giving an appearance that is attractive in design. Bring.

The connecting member comprises a base having a spherical portion on the outer periphery, and a pair of connecting members mounted on the base so as to be adjustable in angle along the spherical surface, and a pair of handrails to be connected. Each end of the member was connected to the member for connection.

According to this configuration, the function of adjusting the angle of the spherical surface is provided in the connecting member, and the handrail member need only be connected to the connecting member.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a connecting structure of a handrail for stairs, FIG. 2 shows a developed plane thereof, and FIG. 3 shows an exploded construction thereof. The connecting structure of the handrail for stairs here is a portion where the connecting member 4b in the conventional example is used,
That is, the connection structure for the slope portion is illustrated.

Each of 10 is a cylindrical handrail member for stairs connected to each other, and a connecting member 11 is used between them.

The connecting member 11 has a base 14 having a bent shape having a bent angle α (about 145 °) and a peripheral surface 13 at both ends formed into a spherical shape. And a pair of connecting rods 15 rotatably mounted. As shown in FIG. 6, the base 14 is formed by joining a pair of divided bodies 16 formed in the same shape, and a joining surface of each divided body 16 has a pair of connecting pins 16a. And a pair of connecting holes 16b are formed, and by causing the divided bodies 16 of the same specification to face each other, the connecting pins 16a of the respective divided bodies 16 are fitted into the connecting holes 16b of the opposed divided bodies 16 and the two divided bodies 16 are formed. The shift movement is prevented. In addition, each joint surface of the divided body 16 is formed at each end with a concave portion 17 whose end portion is expanded, and a bearing hole 18 is provided at the center thereof.

At both ends of each half 16, projections 19 are formed on both sides of the dividing line. A snap ring 20 is fitted over the outer periphery of these projections 19. ,
The separation of the two halves 16 is prevented.

As shown in FIG. 6, one end of the connecting rod 15 is connected to a flat pivoting portion 15b integrally projecting left and right pivoting shafts 15a. The pivoting portion 15b is divided into two parts. Each of the recesses 17 of the body 16 is engaged with the corresponding pivot shaft 15.
By connecting the two divided bodies 16 in a state in which a is inserted into the bearing hole 18, the connecting member 11 equipped with the connecting rod 15 swingably around the axis P of the pivot shaft 15 a is configured. At this time, the swing range of the connecting rod 15 is the range of the angle θ at which the recess 17 expands.

An annular covering member 21 is attached to both ends of the base 14 on which the connecting rod 15 is swingably mounted as described above. At one end of the annular covering member 21, an annular covering portion 23 having an inner peripheral surface 22 having a spherical shape matching the spherical shape of the base 16 is integrally provided, and at an inner portion of the inner peripheral surface 22. A partition wall 25 having a through hole 24 is provided at a center position, and a screw portion 26 is formed on the inner periphery on the other end side.

The annular covering member 21 is previously attached to the base 14 of the connecting member 11. As shown in FIG. 5, the end of the base 14 to which the connecting rod 15 is attached is attached to the base 14 of the base 14. The annular cover member 21 is fitted so that the inner peripheral surface 22 is in surface contact with the peripheral portion 13, and the end of the connecting rod 15 is penetrated through the through-hole 24. A snap ring 28 such as a snap fit is mounted. Thus, the annular covering member 21 is attached to the end of the connecting member 11 so as to be swingable around the axis P and rotatable about the connecting rod 15.

At each end of the handrail member 10, an attachment member 30 for connecting the annular covering member 21 and the handrail member 10 is attached. As shown in FIG. 7, on the connecting portion side of the attachment member 30, a cylindrical portion 3 provided with a screw portion 31 on an outer peripheral surface thereof to be screwed with the screw portion 26 of the annular covering member 21.
2, a projection 33 protruding toward the connecting portion is provided at the center thereof, and a shallow concave portion 34 for positioning and fitting the handrail member main body 28 is formed on the opposite side to the connecting portion. It is fixed to the end face of the screw 35 by screws 36.

When the handrail member 10 and the connecting member 11 are connected, an annular cover member 21 is attached to both ends of the connecting member 11 in advance, and FIG.
As shown in FIG. 5, the annular cover member 21 attached to the end of the connecting member 11 is externally fitted to the attaching member 30 connected to the end of the handrail member main body 28 and is rotated, whereby the attaching member 30 is rotated.
The screw portion 26 of the annular covering member 21 is screwed into the screw portion 31 of the handrail member 10 and the handrail member 10 and the connecting member 11 are connected. In this case, the peripheral surface 13 of the base 14 and the inner peripheral surface 22 of the annular covering member 21 are in close contact with each other, and the distal end of the connecting rod 15 abuts on the projection 33 of the mounting member 30 so that the connecting rod 15 extends in the axial direction. The rattle is prevented.

In the connection configuration, the two handrail members 10 are connected to the connection member 11 at a bending angle α (14).
5 °), and the bending angle of the connection angle between the connection member 11 and each handrail member 10 is adjusted appropriately within the range of the angle θ at which the connection rod 15 expands the recess 17. Thus, as shown in FIGS. 3A and 3B, the angle can be adjusted to α _{1 to} α ₂ (125 ° to 165 °), whereby the embodiment has a staircase inclination of 1 step.
It can be used in steps of 5 ° to 55 °.

Furthermore, the peripheral surface 1 is formed into a substantially spherical shape at both ends of the base 14 by using the annular covering member 21.
Since the connecting member 3 is covered, no matter what angle the connecting member 11 and the handrail member 10 are adjusted to, the connecting portion has a good appearance without any gaps or steps.

Further, when the connection angle between the connecting member 11 and the handrail member 10 is adjusted, the adjusting angle is regulated by the concave portion 17 provided in each of the divided bodies 16, so that the adjusting operation is stable. And can do it,
The peripheral surface 1 formed into a substantially spherical shape by the annular covering member 23 by being adjusted within the regulated adjustment angle.
The cover function of No. 3 is surely fulfilled.

Further, when adjusting the connection angle between the connecting member 11 and the handrail member 10, the inner peripheral surface 32 of the annular covering member 23 is adjusted.
Is formed into a spherical shape that matches the spherical shape of the peripheral surface 13 at both ends of the base 16 of the connecting member 11 so that the respective surfaces are in surface contact, so that the relative movement between the connecting member 11 and the handrail member 10 is smooth. Can be.

FIG. 8 shows a connecting structure of a handrail for stairs at a portion where the connecting member 4b of the conventional example is used.
This connecting structure is basically the same as the connecting structure in the above-described slope portion, and the two handrail members 10 are formed by bending the connecting members 11 at the bending angles β _{1 to} β ₂ (90 ° to 125 °).
The basic bending angle of the base body 14 is set so that the angle can be adjusted to (°). Note that common members are denoted by the same reference numerals and description thereof is omitted.

FIGS. 9 and 10 show another embodiment of the present invention.

In this example, the base body 14 is formed of a half-structured sphere formed by joining hemispherical divided bodies 16, and is housed between the two divided bodies 16 and protrudes in opposite directions. Are connected to the base 14 by a common pivot shaft 40 so as to be swingable around the center Q of the sphere, and an annular covering member 21 having an annular covering portion 23 for each of the connecting bars 15 is connected to a connecting rod shaft. The connecting member 11 is configured so as to be rotatable around the center, and the attaching member 30 screwed to the end of the handrail member body 35 of the handrail member 10 and the connecting member 11 are screwed in the same manner as in the above example. It is configured to be connectable. Also according to this configuration, both handrail members 10 are connected via the connecting member 11 so as to have a smoothly connected appearance. The divided bodies 16 are connected to each other by screwing or bonding after assembling the pair of connecting rods 15.

[0026]

According to the present invention, the connection at the bent portion of the handrail can be performed with an appearance excellent in design.

Further, the angle can be smoothly adjusted by using the spherical surface , and the connection can be made with an excellent appearance. In addition, it is not necessary to perform particularly complicated end processing on the handrail member itself. , Processing and assembly work are facilitated.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing a handrail connection structure according to an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view showing a handrail connection structure according to the embodiment of the present invention.

FIG. 3 is a partially cutaway side view showing a limit state of bending of the handrail connection structure according to the embodiment of the present invention.

FIG. 4 is an exploded perspective view showing a connecting structure of a handrail according to the embodiment of the present invention.

FIG. 5 is an exploded perspective view of the connecting member according to the embodiment of the present invention, in which some of the members are cut away.

FIG. 6 is an exploded perspective view of a connecting member according to the embodiment of the present invention.

FIG. 7 is a perspective view of members constituting a handrail connection structure according to the embodiment of the present invention.

FIG. 8 is a partially cutaway side view showing a limit state of bending of a handrail connection structure according to another embodiment.

FIG. 9 is a partially cutaway side view showing a handrail connection structure according to still another embodiment.

FIG. 10 is a partially cutaway plan view showing a handrail connection structure according to another embodiment.

FIG. 11 is a perspective view showing the arrangement of handrails on the stairs.

FIG. 12 is a perspective view of a conventional handrail connecting member.

[Explanation of symbols]

 10 Handrail member 11 Connecting member 14 Base

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-9-317115 (JP, A) JP-A-8-74397 (JP, A) JP-A-5-35940 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) E04F 11/18

Claims (1)

(57) [Claims] (1) The whole is formed in a bent shape.
And a base with spherical surfaces at both ends, and one end at each end.
A pair of connecting rods rotatably mounted on a shaft,
An annular covering member attached to both ends of the body;
An attachment member for connecting the handrail member to the handrail member is provided.
The annular covering portion is provided on the connecting portion side of the mounting member.
A cylindrical portion is provided for fitting to the material, and a mounting member is provided.
Is fixed to the end face of the handrail member with screws.
Handrail connection structure.