JP4522300B2 - handrail - Google Patents

Description

  The present invention relates to a handrail used in, for example, a corridor or a staircase, and particularly to the structure of a corner portion.

  Conventionally, handrails are used in hallways and stairs. As a method of constructing the corner portion of this handrail, conventionally, (1) a core material made of extruded aluminum is continuously bent from a straight portion and bent to a desired angle along an actual wall surface. Or (2) a dedicated corner member whose bending angle is fixedly set to a predetermined angle is connected.

  Conventionally, as a handrail of this type, for example, a core member formed by extrusion molding of an aluminum material is bent by performing an operation in the direction of closing a slit provided on one side thereof at an installation work site. A handrail structure is known in which a portion is formed and a covering member is provided thereon (see, for example, Patent Document 1).

In addition, by using a resin core material that can be bent with hot water or a burner at the bent portion, it is possible to bend a predetermined arc, and the resin core material of this bent portion is matched with the metal core material of the straight portion, There is known a handrail structure in which a joint bar is provided so as to be bridged in the cavity, thereby connecting and fixing the resin core material of the bent portion and the metal core material of the straight portion (for example, see Patent Document 2).
Japanese Patent Laid-Open No. 2002-21281 JP 2005-2758 A

  However, the one described in Patent Document 1 has a problem that it takes time to bend the core material, and the cost is high in terms of construction cost. In addition, in the one described in Patent Document 2, since the thermoplastic resin core material is heated and bent by hot water or a burner, it takes time and effort in the same manner as Patent Document 1 and is expensive in terms of construction cost. There is a problem of becoming. Furthermore, in patent document 2, since the resin core material of a bending part is connected and fixed with the metal core material of a linear part using a joint bar, there also exists a problem that construction is troublesome in addition to many components.

  This invention is made | formed in view of the said situation, and it aims at providing the handrail structure which can solve the said subject, and can construct a corner part easily and low cost.

  In order to solve the above problems, the present invention is configured as follows.

The handrail according to the invention described in claim 1 is a linear handrail core material, a curved joint material connected to both handrail core materials adjacent to each other at the corner, and the handrail core material and the joint material can be covered. A handrail comprising a flexible covering material, wherein the handrail core member has a substantially circular cross section, has a pair of locking ridges at both lower ends, and has grooves on the upper surface and both side surfaces. The joint material is formed in a hollow shape having a hollow portion, and the joint material is formed in a substantially circular cross section , and locking ridges connected to the locking ridges of the handrail core material on both lower ends. And a joint piece projecting from both ends of the joint body and capable of being fitted into the hollow portion of the handrail core, the joint body having a flat surface at the top and in the axial direction. A plurality of Has a cavity, the connection piece of the joint member in a state fitted in the hollow portion of the handrail core, and a handrail core material and the joint member head at storable set screw above the groove The handrail core material and the joint material are covered by fixing and engaging the covering material with the locking ridges.

According to a second aspect of the invention, characterized in that the handrail of claim 1, wherein the connecting piece of the cross section of the hollow portion and the joint member of the handrail core material is formed on the mutually fittable substantially cross shape And

  According to the present invention, the following excellent effects can be obtained.

  (1) According to the invention described in claim 1, the connecting piece of the joint material made of the synthetic resin member is fitted into the hollow portion of the handrail core material made of the hollow shape member, and both are fixed by the set screw. Since the covering material is covered, the corner portion can be easily constructed and the corner portion can be constructed at a lower cost than when the core material is bent.

(2) Further, according to the first aspect of the present invention, it is possible to obtain a joint body structure that facilitates the work of covering the covering material at a low cost. That is, since the cross sections of the balustrade core material and the joint material are substantially circular, the outer surface becomes a smooth surface and the covering material is easily adhered. In addition, since the joint body of the joint material has a flat surface at the top, a space is formed between the flat surface and the space acts as a relief when the covering material is covered. The covering operation is facilitated. Furthermore, since it has a plurality of bottomed cavities partitioned through the reinforcing partition wall along the axial direction, the joint body resin material is strengthened while securing a predetermined strength by reinforcing the joint body of the joint material. It is possible to reduce the cost by reducing the amount of use. In addition, after fitting the joint material to the handrail core material, the joint material does not fall off even if the hand is released, and the fitting state is maintained, so the following work such as drilling for screwing is easily performed. be able to.

(3) According to the invention described in claim 2 , when the connecting piece of the joint material is fitted and inserted into the hollow portion of the handrail core material, the alignment can be performed easily and reliably by the substantially cross-shaped fitting. . That is, since it is a substantially cross-shaped fit, when inserting the joint piece of the joint material into the hollow portion of the handrail core material, the alignment work of both, that is, the hollow portion of the handrail core material and the joint piece of the joint material are the same It is possible to easily perform the operation of matching the axis line and matching the rotation angle position to a predetermined direction.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  The handrail H according to the present invention has a cylindrical cross section, and as shown in FIGS. 1 to 4, a straight handrail core member 10 and a curve connected to the adjacent two handrail core members 10 at a corner portion. And a covering member 30 having a substantially C-shaped cross section having flexibility to cover the handrail core member 10 and the joint member 20.

  As shown in FIG. 1, the handrail core member 10 has a pair of locking ridges 11 at both lower ends to form an engaging groove, and has a groove 12 on the upper surface and both side surfaces, and The hollow shape member made of aluminum having the stepped hollow portion 13 is formed.

  As shown in FIG. 5, the joint material 20 includes a joint body 22 having locking ridges 21 connected to the locking ridges 11 of the handrail core material 10 at both lower ends, and protruding at both ends of the joint body 22. It is formed of a synthetic resin member provided with a stepped connection piece 26 that can be fitted into the stepped hollow portion 13 of the handrail core 10.

  The cross sections of the handrail core member 10 and the joint member 20 are formed in a substantially circular shape so that the outer surface becomes a smooth surface on which the covering member 30 is easily adhered. For this reason, the covering operation when covering the covering material 30 is easy, and since the covering material 30 is in close contact, the appearance is good.

  The joint body 22 of the joint material 20 has a flat surface 23 at the top and a plurality of bottomed cavities 25 that are partitioned through a reinforcing partition wall 24 along the axial direction. Therefore, the joint body 22 has the necessary strength, can be reduced in weight, and cost can be reduced.

  The hollow portion 13 of the handrail core member 10 and the connection piece 26 of the joint member 20 are formed in a substantially cross shape whose cross sections can be fitted to each other so that the connection is easy.

  Next, the procedure for assembling the corner portion of the handrail H will be described with reference to FIGS.

  First, the connection piece 26 of the joint material 20 of FIG. 1 is inserted into the hollow portion 13 of the handrail core material 10 to fit both.

  Next, as shown in FIG. 2, the fitted joint material 20 and the handrail core material 10 are fixed with a set screw 5. That is, in a state where the connection piece 26 is fitted in the hollow portion 13, the handrail core material 10 is penetrated from the position of the concave groove 12, and the set screw 5 is screwed into the joint material 20. Conclude. At this time, the head 5a of the set screw 5 is housed in the concave groove 12, and is hidden inside from the envelope of the outer peripheral surface of the handrail core 10 (see the two-dot chain line in FIG. 6).

  Next, the distal end portion of the metal bracket 4 having the base portion 41 fixed to the wall surface W (in this embodiment, the wall surface at the protruding corner) by the fixing bolt 6, that is, the arm 42 extending upward from the base portion 41. The front end portion is inserted into the hollow portion 13 of the handrail core material 10, the handrail core material 10 is penetrated from the position of the concave groove 12, and the mounting screw 7 is screwed into the joint material 20 and fixed to the handrail core material 10. In this case, the head 7a of the mounting screw 7 is housed in the concave groove 12 of the handrail core member 10, and is hidden inside from the envelope of the outer peripheral surface of the handrail core member 10 (see two in FIG. 7). See dotted line).

  Next, as shown in FIG. 3, the hollow portion 32 of the covering material 30 having a substantially C-shaped cross section is opened from the lower open end side and covered with the handrail core material 10 and the joint material 20. At that time, the covering material 30 has a substantially C-shaped cross section, and the release side is a lower end, and an inward return portion 31 is formed at the release lower end. When covering the covering material 30, after the release lower end of the covering material 30 is opened to overcome the maximum diameter portion of the handrail core member 10 and the joint member 20, as shown in FIG. 6 and FIG. 31 is prevented from entering and engaging inside the locking ridges 11 of the handrail core 10 and the locking ridges 21 of the joint body 22 and being separated from the handrail core 10 and the joint body 22.

  Finally, as shown in FIG. 4, the bracket cover 8 is put on the base portion 41 of the bracket 4, and the assembly of the handrail H attached to the wall surface W of the corner portion is completed.

  In the above embodiment, the form of the handrail attached to the corner portion of the corner is described. However, the present invention is not limited to this, and the present invention is similarly applied to the handrail attached to the corner portion of the corner. The effect of can be obtained.

It is a disassembled perspective view which shows the handrail core material in this invention, a joint material, and a coating | covering material. It is a perspective view which shows the state which connected the handrail core material and joint material in this invention, and was attached to the wall surface. It is a lower perspective view which shows the state which coat | covers a covering material on the handrail core material and joint material in this invention. It is a perspective view which shows the state which carried out the bracket cover to the bracket of the handrail which coat | covered the coating | covering material of FIG. It is a perspective view which shows the joint material in this invention. It is sectional drawing which follows the II line | wire of FIG. It is sectional drawing which follows the II-II line | wire of FIG.

Explanation of symbols

H Handrail 5 Set screw 5a Head 10 Handrail core material 11 Locking ridge 12 Groove 13 Hollow part 20 Joint material 21 Locking ridge 22 Joint body 23 Flat surface 24 Reinforced partition wall 25 Bottomed cavity 26 Connection piece 30 Coating material

Claims (2)

A handrail comprising a straight handrail core material, a curved joint material connected to both handrail core materials adjacent to each other at the corner, and a flexible covering material that covers the handrail core material and the joint material. Because
The handrail core has a substantially circular cross section , a pair of locking ridges at both ends of the lower part, a concave groove on the upper surface and both side surfaces, and a hollow member having a hollow part. And
The joint material has a substantially circular cross section, and has a joint main body having locking ridges connected to the locking ridges of the handrail core material at both lower ends, and protruding from both ends of the joint main body. A joint piece that can be fitted into the hollow portion of the core material, and the joint body has a flat surface at the top and a plurality of bottomed hollow portions that are partitioned along the axial direction via a reinforcing partition wall Have
In the state where the connecting piece of the joint material is fitted in the hollow portion of the handrail core material, the handrail core material and the joint material are fixed with a set screw capable of storing the head in the concave groove, and the covering material The handrail is characterized in that the handrail core material and the joint material are covered with the engaging protrusions. The handrail according to claim 1 ,
A handrail characterized in that a cross section of a hollow portion of the handrail core member and a connecting piece of the joint member are formed in a substantially cross shape that can be fitted to each other.

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