JP3084551B2 - 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.

[0002]

2. Description of the Related Art FIG. 7 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, 3a.
b, 3c and two connecting members 4 connecting between them
a and 4b. As the connecting member 4a, one having a 90 ° bend in a plane position is used, and as the connecting member 4b, one having an appropriate bending angle (125 to 145 °) corresponding to the inclination angle of the stairs (35 to 55 °) is used. ing.

As shown in FIG. 8, the connecting member 4b is obtained by cutting a curved cylindrical member 4 at an appropriate position in the field and cutting it at positions x, y, and z. , A bend angle that becomes larger sequentially is obtained.

[0004]

However, as described above, it takes a great deal of time to cut the member at the correct position on 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
If not cut properly, there is a problem in that a gap is formed in the connection portion, or 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 make it possible to easily connect a handrail at a bent portion at an appropriate bent angle with good appearance.

[0006]

In order to attain the above object, according to the first aspect of the present invention, the connecting structure of the handrail has a bent shape as a whole, and a peripheral surface at an end thereof is substantially spherical. A connecting member is formed in a shape, and one end of the connecting member is rotatably mounted on one end thereof at an end thereof, and an annular covering portion is provided on a periphery of an end corresponding to the end of the connecting member. And the other end of the connecting rod is connected to the end of the handrail member in a state where the peripheral surface of the end of the connecting member is covered with the annular covering portion.

[0007] According to the above configuration, the connecting member and the handrail member are connected by the connecting rod at an appropriate rotation position,
The connecting member and the handrail member can be connected at an appropriate angle, and
At the time of the connection, the annular covering portion at the end of the handrail member covers the substantially spherical peripheral surface of the end of the connection member, so that there is no gap or step at the connection portion at any angle.

In particular, the inner peripheral surface of the annular cover of the handrail member conforms to the peripheral surface of the end of the connecting member, and the peripheral surface of the end of the connecting member is connected to the inner peripheral surface of the annular cover during connection. With the configuration in which the surfaces are in contact with each other (the invention according to claim 2), the relative displacement between the connecting member and the handrail member during the angle adjustment is made smooth.

[0009] Further, by providing a rotation angle restricting portion for restricting the rotation angle of the connecting rod at the end of the connecting member (the invention according to claim 3), the connecting member, the handrail member and the handrail member are provided. Is maintained within a predetermined angle range, whereby
The annular covering portion reliably covers the substantially spherical peripheral surface of the end portion of the connecting member, thereby reliably preventing a gap or a step from occurring in the connecting portion.

[0010] Further, the annular covering portion is constituted by a separate member attached to the end of the handrail member main body.
According to the described invention), the annular covering portion of the handrail member can be easily formed.

The handrail connecting structure of the present invention is adopted as a stair handrail connecting structure (the invention according to claim 5).

[0012]

FIG. 1 shows a connecting structure of a handrail for stairs, and FIG. 2 shows an exploded construction thereof. The connection structure of the handrail for stairs in this case is a portion in which the conventional connection member 4b is used.

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 Y (about 135 °), the peripheral surfaces 13 of both ends of which are formed in a spherical shape, and one end supported by both ends. And a pair of connecting rods 15 rotatably mounted. The base 14 is formed by matching divided bodies 16 of the same shape shown in FIG. On the surfaces of the divided bodies 16 which are respectively matched, recesses 17 are formed at both ends thereof, the ends of which are widened. A shaft support pin 18 is projected from one of the recesses 17 and the other recess 17 is provided. The part 17 is provided with a bearing hole 20.

Each divided body 16 is matched so that its pivot pin 18 and bearing hole 20 are at opposite positions, and the tip of the pivot pin 18 of each divided body 16 is It is fitted into 16 bearing holes 20. At this time, each of the connecting rods 15 is rotatably attached to each of the pivot pins 18. The rotation range is the range of the angle X at which the recess 17 expands.

An annular cover member 23 is attached to each end of the handrail member 10 via an attachment plate 22. The mounting plate 22 is provided with a through hole 24 at the center and a projection 26 having a threaded portion 25 on the peripheral surface. The projection 26 is fixed by a screw 27 and fixed to an end surface of a handrail member main body 28. I have.

The projecting portion 2 of the mounting plate 22
6, the annular cover member 23 is attached by screwing the screw portion 30 on the inner surface thereof to the screw portion 25. On the side opposite to the side of the annular covering member 23 attached to the attachment plate 22, the inner peripheral surface 32 is attached to the base 1 of the connecting member 11.
An annular covering portion 33 having a spherical shape matching the spherical shape of No. 6
Are provided integrally, and a partition wall 35 having a through hole 34 is provided at a center position between the side to be attached to the attachment plate 22 and the annular cover 33 side.

The attachment of the annular covering member 23 to the mounting plate 22 is performed in a state where the annular covering member 23 is attached to both ends of the connecting member 11. That is, the annular covering members 23 are attached to both ends of the connecting member 11 on the side of the annular covering portion 33, and the projecting connecting rod 1
5 is inserted through the through-hole 34 of the partition wall 35, the split pin 37 for retaining is fixed to the end, and the annular covering member 23 is integrated with both ends of the connecting member 11 in this manner. At the mounting plate 22.
By this attachment, the two handrail members 10 are connected to the connecting member 11.
Are connected via. In this connected state,
Inner peripheral surface 32 of annular covering member 23 and base 1 of connecting member 11
6 are in surface contact with the peripheral surfaces 13 at both ends.

In the connection configuration, the two handrail members 10 are connected to the connection member 11 at a bending angle Y (13).
5 °), and the bending angle is adjusted by adjusting the connecting angle between the connecting member 11 and each of the handrail members 10 by appropriately rotating the connecting rod 15 to the angles Z _{1 to} Z ₂ (125 °). To 145 °), which allows this embodiment to be used in stairs with a staircase slope of 35 ° to 55 °.

Further, a substantially spherical peripheral surface 1 is formed at both ends of the base 14 by using an annular covering member 23.
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.

FIGS. 4 and 5 show modifications of the above embodiment.

In this modification, a cylindrical handrail member 40 is used. Therefore, the connecting rod 42 from the connecting member 41 is connected and fixed to the fitting member 44 fitted and attached to the end of the handrail member 40 by the screw 45 structure. That is, as shown in FIG. 5, each of the fitting members 44 is attached to the connecting member 41 in advance, and the fitting members 44 are fitted and connected to the handrail member 40, thereby completing the connection configuration. A groove 47 is provided in the fitting portion 46 of the fitting member 44 in the axial direction, and the fitting is firmly performed by biting the groove 47.
Other configurations, functions, and effects are the same as those of the above embodiment.

FIG. 6 shows a handrail member 50 having a cylindrical shape as in the above-described modified example. In this example, a connecting rod 56 from a connecting member 55 is inserted into an insertion hole 52 of a fitting member 51. And is fixed from the side by a fixing screw 57. Other configurations, functions, and effects are the same as those of the above embodiment.

[0026]

According to the present invention, it is possible to easily connect the handrail at the bent portion at an appropriate bent angle with good appearance.

In particular, the stair railing can be easily connected at an appropriate bending angle corresponding to the inclination angle of the stairs.

[Brief description of the drawings]

FIG. 1 is a side view including a partial cross section showing a handrail connection structure according to an embodiment of the present invention.

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

FIG. 3 is a perspective view of a divided body of a base constituting the connecting member according to the embodiment of the present invention.

FIG. 4 is a side view including a partial cross section showing a modification of the handrail connection structure according to the embodiment of the present invention;

FIG. 5 is a perspective view showing an integrated state of the connecting member and the fitting member in the modification shown in FIG. 4;

FIG. 6 is a side view including a partial cross section showing still another modification of the handrail connection structure in the embodiment of the present invention.

FIG. 7 is a perspective view showing the arrangement of handrails on the stairs.

FIG. 8 is a perspective view of a conventional handrail connecting member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Handrail member 11 Connecting member 13 Peripheral surface 15 Connecting rod 33 Annular covering part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-74397 (JP, A) JP-A-6-173407 (JP, A) JP-A-5-35940 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) E04F 11/18

Claims (5)

(57) [Claims] 1. A connecting member having a bent shape as a whole, a peripheral surface at an end thereof being formed into a substantially spherical shape, and a connecting rod rotatably mounted at one end thereof at one end thereof. And a handrail member provided with an annular covering portion on the periphery of an end portion corresponding to the end portion of the connecting member, wherein the peripheral surface of the end portion of the connecting member is covered with the annular covering portion, A handrail connecting structure in which the other end of the connecting rod is connected to an end of the handrail member. 2. The shape of the inner peripheral surface of the annular covering portion of the handrail member conforms to the shape of the peripheral surface of the end portion of the connecting member, and at the time of the connection, the peripheral surface of the end portion of the connecting member is formed inside the annular covering portion. The handrail connection structure according to claim 1, wherein the handrail is in surface contact with the peripheral surface. 3. A handrail connection structure according to claim 1, wherein a rotation angle restricting portion for restricting a rotation angle of said connecting rod is provided at an end of said connecting member. 4. The handrail connection structure according to claim 1, wherein said annular covering portion is formed by a separate member attached to an end of the handrail member main body. 5. A handrail connecting structure according to claim 1, 2, 3 or 4 for stairs.