JPS585814Y2 - metal handrail - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a metal handrail.

Conventionally, handrails made of metal such as stainless steel that are attached to buildings have been manufactured according to the installation location, and the completed products are transported to the construction site and installed.

This is because each part is connected by welding,
Welding work and subsequent polishing work cannot be carried out easily at construction sites, and welding of stainless steel is particularly difficult.

For this reason, metal handrails and the like have disadvantages in that they require time and effort to manufacture, and are subject to space constraints in their transportation and storage.

The present invention was developed in view of these points, and in particular, it is designed to easily and accurately connect the balusters and lower rails, which are used in large numbers on one handrail, without welding, and even at construction sites. A pair of side edges are bent downward from both sides of the intermediate edge to face each other, and a pair of bottom edges are bent inward from the lower edge of the pair of sides. A pair of inner edges are bent upward from the inner edges of the pair of bottom edges of the pushers, and a pair of engaging edges are bent inward from the upper edge of the pair of inner edges. A lower rail having a cross-sectional shape and having a plurality of insertion holes formed in the intermediate side portion, a plurality of balusters whose lower ends are inserted into the insertion holes of the lower rail, and side portions of a pair of the lower rails. Engagement recesses that engage with the engagement edges of the lower crosspiece are formed on both sides between the fixing piece disposed between the fixing piece and the locking piece disposed between the pair of inner sides, and the fixing The baluster is characterized in that the piece includes a connecting plate fixed to the lower end side surface of the baluster with a screw.

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a handrail 1 made of metal such as stainless steel, in which a cap 3 is hung between the upper ends of a pair of pillars 2, and a lower rail is placed between near the lower ends of the pair of pillars 2. 4 are installed horizontally, and a plurality of balusters 5 are provided parallel to the pillars 2 between the cap 3 and the lower crosspiece 4.

Next, the connection between the lower rail 4 and the baluster 5 will be explained with reference to FIGS. 2 and 3.

The lower crosspiece 4 has a pair of side sides 7 bent downward from opposite sides of the F-shaped intermediate side 6, and these side sides 7
The pair of bottom sides 8 are each bent inward from the lower edge of the bottom edge 8, and the pair of inside sides 9 are bent upward from the inside edge of each bottom side 8. It has a cross-sectional shape in which the upper end edge of the inner-side side portion 9 is bent inward to form a pair of engaging edges]0.

An insertion hole 11 is provided in the lower crosspiece 4 at the intermediate side 6 at the position where each of the balusters 5 is connected.

Further, the baluster 5 includes a tubular body 12 whose lower end is inserted into the insertion hole 11 of the lower rail 4, and a female threaded hole 13 is formed on the side surface of the lower end of the tubular body 12.

Reference numeral 14 denotes a connecting plate, which includes a fixing piece 15 having a width that is almost inscribed between both sides 7 of the lower crosspiece 4 and an inner side side 9 of the lower crosspiece 4.
A locking piece 16 having a width inscribed therebetween is provided, and a locking piece 16 that engages with the pair of retaining edges 10 of the lower crosspiece 4 is provided on both sides between the fixed piece 15 and the locking piece 16. A mating recess 17 is provided, and a long hole 18 is formed in the fixed piece 15 at a position corresponding to the female screw hole 13 of the handrail 5.

Then, the fixing piece 15 of the connecting plate 14 is attached to the lower crosspiece 4.
Insert from the open end or between the engaging edges 10 on the lower surface,
The engagement recesses 17 of the coupling plate 14 are engaged with both engagement edges 10 of the lower crosspiece 4, and the female screw holes 1 of the baluster 5 are engaged with each other.
3 are inserted through the insertion holes 11 of the middle side 6 of the lower crosspiece 4 so as to be perpendicular to each other, and
3 is screwed into the long hole 18 of the connecting plate 14 with screws 19 to fix the connecting plate 14 and the baluster 5, and connect the baluster 5 to the lower crosspiece 4.

In this case, the lateral movement of the baluster 5 is reliably and firmly regulated by the engagement with the insertion hole 11 of the lower crosspiece 4, and the axial movement is regulated by the connection with the coupling plate 14 with the screw 19. Since the movement of each member is regulated reliably and firmly, and each movement is regulated independently, the connection with the lower crosspiece 4 is extremely strong, and even if a person steps on the lower crosspiece 4, the joint will not come off or deform. There is no need to worry about doing so.

Moreover, as mentioned above, the lateral movement of the baluster 5,
Because of the structure that independently regulates the movement in the axial direction,
Even when the lower rail 4 and the baluster 5 are not perpendicular to each other, such as an inclined handrail installed on a staircase, etc., this can be handled very easily.If the slope is small, the baluster 5 and the insertion hole 11
With the clearance for fitting with the engagement edge 10 and the clearance for engagement between the engagement edge 10 and the engagement recess 17, it is possible to respond without any modification, and
Even if the slope is large, it can be dealt with by simply increasing the above-mentioned clearance a little.

According to the present invention, when connecting the lower rail and the baluster, the engaging recess of the connecting plate is engaged with the opposing engaging edges of the lower rail, and the lower end of the baluster is inserted into the insertion hole of the lower rail. ,Next, by fixing the lower end of this baluster to the connecting plate with screws, a large number of balusters can be easily connected to the lower baluster,
Further, the lower rail and the baluster can be easily processed by drilling holes, forming internal threads, etc., and the connecting plate can be manufactured easily and inexpensively.

Therefore, if the present invention is applied to handrails made of metal such as stainless steel that are attached to buildings, it is possible to create metal handrails that are easy to manufacture and can be assembled on-site without welding, and are not subject to restrictions on storage or transportation. can be provided.

Furthermore, since the connection between the lower rung and the baluster is made by connecting plates located inside the middle side, both sides, and both bottom sides, the lower part of the connecting plate is exposed on the outer surface of the lower rung. Everything else is smooth, and there are only bent edges of metal plates on the top and sides, so there is no risk of injury to the human body, making it extremely safe.

Moreover, the connection between the bottom rung and the baluster can be made not only at right angles but also at an angle without any modification.
Can be applied to both horizontal and sloping handrails.

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the handrail of the present invention, Figure 2 is a front view showing an embodiment of the handrail of the present invention;
The figure is a sectional view of the main part, and FIG. 3 is a partially cut away plan view of the main part. 1...Handrail, 4...Lower rail, 5...
...Baluster, 5...Middle side, 7...
... Side part, 8... Bottom part, 9... Inner side part, 10... Engaging edge, 11...
Insertion hole, 14... Connecting plate, 15... Fixed piece part, 16... Locking piece part, 17...
Engagement recess, 19...screw.

Claims (1)

[Scope of utility model registration request] A pair of side edges are bent downward from both sides of the middle side edge, and a pair of bottom edges are bent inward from the lower edge of the pair of side edges. It has a cross-sectional shape in which a pair of inner side edges are bent upward from the inner edge of the bottom side, and a pair of retaining edges are bent inward from the upper edge of the pair of inner side edges. A lower crosspiece having a plurality of insertion holes formed in the intermediate side, a plurality of balusters whose lower ends are inserted into the insertion holes of the lower crosspiece, and a fixing member disposed between the pair of side sides of the lower crosspiece. An engaging recess is formed in the engaging edge of the lower crosspiece on both sides between the piece and a locking piece disposed between the pair of inner sides, and the fixing piece is on the lower end side surface of the baluster. A metal handrail comprising: a connecting plate fixed with screws to the metal handrail.