JPS6410436B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a handrail for a passenger conveyor such as an escalator or an electric road, and more particularly to a handrail structure suitable for enhancing the design effect of a handrail member made of a stainless steel plate.

[Background of the invention]

Passenger conveyors have become widely established as indispensable servicing equipment in buildings, but recently, various demands have been made, especially in terms of the design of handrails. As is well known, the handrail makes up the majority of the design of a passenger conveyor, and everyone involved recognizes that its design is extremely important as it determines the quality of interior decoration.

Generally, as shown in FIGS. 1 and 2, the railing of a passenger conveyor includes a step 1 and a handrail 2, which are arranged in an endless manner and rotate to carry passengers, as well as a handrail 2 that allows the step 1 to move. It is composed of stationary bodies such as a supporting rail 3, a handrail deck 4 that guides the handrail 2, a handrail panel 5, a substantially U-shaped decorative patch 6, an inner deck 7, an outer deck 8, and an exterior plate 9. There is. and,
The balustrade panel 5 and the inner deck 7 are fixed to a sturdy main body frame 13 by several supports 10, and the outer deck 8 is fixed to several supports 11 by welding or bolts 12 or the like.

Here, the handrail deck 4, inner deck 7, outer deck 8, and exterior board 9 are called design members, and the quality of the overall design is determined by the finished state of these members. It is. Among these design members, the beautiful decorative material made of anodized aluminum alloy extrusion has been widely used as the material for the decking material, and the exterior panel 9 has been made of painted steel plate or decorative plywood. There is.

However, in recent years, stainless steel sheets have been particularly used as materials for decks, and have become widely used due to their high-grade gloss, resistance to scratches and dents, and good corrosion resistance. are doing.

In this case, the stainless steel plate is 3 to 4
Since it is twice as expensive, if you want to manufacture a low-cost balustrade, you will inevitably try to make it lighter by using thin plates. It has become extremely difficult to maintain it for a long time. In particular, like a passenger conveyor, there is a concave curved section (not shown) and a convex curved section from the lower entrance (not shown) to the upper east exit.
It is difficult to bend parts that draw unique streamlines such as U ₁ and U ₂ and the terminal curve T, and especially in the case of thin materials, local deformation such as distortion due to slight external force or heat may occur. It is easy to understand that this is likely to occur.

Here, among the parapet members, if the design defects are explained using the outer deck 8 as a representative example, for example, the second
As shown in the figure, in the case where the outer deck 8 is fixed to the support body 11 with the screws 14, although a stainless steel plate is used, the surface gloss is destroyed by the screws 14, resulting in an unpopular result. . As is clear from FIG. 3, the screws 14 scattered above the support 11 detract from the design sense that emphasizes its beautiful flat surface. Furthermore, if the screw 14 is strongly tightened, it also includes the problem that strain A is generated around the screw 14. This problem is caused by the fact that the outer deck 8 is substantially flat and reflects the light source of the parapet lighting or the ceiling of the building as shown by the arrow Z, which further accentuates the distortion A and makes it extremely unsightly.

On the other hand, when the back surface of the outer deck 8 is bonded to the support 11 with an adhesive S or the like as shown in FIG. 4, a strain B occurs on the upper surface of the support 11. This is especially true when fixing the outer deck 8 to the main body frame 13 at curved sections (such as the _U2 section in Figure 1).
This often occurs when the outer deck 8 is forcibly stretched while ignoring differences in curvature caused by manufacturing errors or twisting of the material, and is a unique weakness of thin plate materials. Moreover, when the outer deck 8 is forcibly drawn toward the main body frame 13 side, the adhesive S is peeled off, and the outer deck 8 is partially moved upward (arrow Y
This may cause the product to spring up on the side (side).

Here, when a welding bolt 15 is joined to the back surface of the outer deck 8 as shown in FIG. I have a similar problem.
In other words, the welded bolts 15 are welded using a thermal welding method generally called stud welding, but the welding heat may deform the outer deck 8 or cause the welding bolts 15 to be welded downward (arrow Q).
Strain C is generated due to the tensile force on the side).

Furthermore, the same problem occurs when the back surface of the outer deck 8 and the support body 11 are directly welded as shown in FIG. That is, the welding heat of the weld bead 17 generates a large thermal strain D, and this type of welding method presents a fatal defect in that it cannot be put to practical use.

As mentioned above, placing the screws 14 on the surface of the handrail member that should be the most beautiful, or providing a fixing part by welding or welding on the back side, is not optimal with any of the conventional methods. It is clear that the design quality of the product has been significantly degraded.

The drawbacks of such conventional methods are that firstly, the surface part of the parapet member such as the outer deck 8, or the immediate backside thereof,
In other words, the fixing part is provided in the part that is most visible to the eye. Then, the strains A, B,
As a measure to avoid C and D, it is necessary to use a thick plate with a thickness of about 5 mm, and the cost increase due to this is a serious problem.

Furthermore, in the balustrade structure explained in FIGS. 3 to 6, there is a problem as shown in FIG. 7 at the joint portion of the outer deck 8. That is, since the outer deck 8 is made of a thin plate and made of a material that is difficult to cut, a gap g is likely to occur due to assembly errors, and the inside of the passenger conveyor can sometimes be seen through this gap g. This phenomenon is a common problem in balustrade members that are divided in the longitudinal direction of passenger conveyors, and a suitable means for covering this gap g is desired.

In order to meet this demand, a configuration as shown in FIGS. 8 and 9 has been proposed.

In FIGS. 8 and 9, the design members such as the handrail deck 4 and the inner deck 7, as well as the step 1 and the handrail 2, can be omitted because they have the same structure as before. In this structure, the cross-sectional shape of the outer deck 18 (a member corresponding to the conventional outer deck 8) is approximately C-shaped, and the fixing device 19 is engaged with the inside of the outer deck 18 to fasten the bolt 2.
It has a structure in which it is fixed to the support body 21 of the parapet and finally fixed to the main body frame 13 with 0.0 nuts 22.

Here, the panel 5 side of the parapet of the exterior deck 18 is a substantially U-shaped portion 18A having a vertical side 18a and a bottom portion 18b, and the exterior board 9 side is a vertical side portion 18c and a bent portion 1.
8d, and furthermore, inside this outer deck 18, there is a U-shaped part 18B.
A and the vertical side 19 that engages inwardly with the U-shaped portion 18B.
a. A fixing tool 19 having a fixing groove 19b for housing the head 20a of the fixing bolt 20 is placed appropriately, and is especially placed at the joint part of the outer deck 18 so that the gap g mentioned in FIG. 7 is hidden from the back side. It has a structure. Here, the outer deck 18 and the fixture 19
If we explain the combination of this outer deck 1
If the width of fixture 8 is Y, then the width of fixture 19 is [Y
- (Thickness of outer deck 18 x 2 - minute gap y)]
Therefore, the width of the fixture 19 is substantially smaller than the width inside the outer deck 18. on the other hand,
On the exterior plate 9 side, the vertical side 19a is inserted inside the U-shaped portion 18B, and this engagement connects the outer deck 18 and the fixture in the cross-sectional direction (the state shown in FIG. 9). This is a configuration in which play with No. 19 is restricted. Note that the gap y is used as an extra space in this engaged state, and is configured to absorb errors in manufacturing or assembling the outer deck 18 and the fixture 19.

With this structure: 1. No aesthetically harmful defects occur on the surface of the outer deck 18.

2 Unlike the structure explained up to FIG. 7, no distortion or discoloration occurs during welding, so production can be carried out at low cost.

3. By fitting the U-shaped portion 18B and the vertical side 19a, the two are securely fixed without play.

4. The gap g (explanation in FIG. 7) that occurs at the joint in the longitudinal direction can be closed with the back surface.

It has many advantages such as:

However, the balustrade structure described in FIGS. 8 and 9 has the following strength problems, and a solution to these problems is desired.

The problem is that, as shown in Figure 8, when a load W ₁ (normally the weight of the intruder here) is applied to the outside of the outer deck 18, the outer deck 18 This causes the surface to sink and become distorted. This occurs because the fixture 19 and the support 21 are fixed only at approximately the center of this cross section, and neither the inside nor the outside rests on the support 21.

2 Furthermore, the exterior plate 9 deforms as shown by the imaginary line M due to mischief by an unscrupulous person or other external force _W2 , causing distortion on its surface. For this reason, a method of placing another support at the upper end portion of the exterior plate 9 is also adopted, but this method is not very popular in terms of cost.

The external forces W ₁ and W ₂ described above have been pointed out as new problems that induce design defects, and a solution is desired.

[Purpose of the invention]

The present invention has been made with the object of obtaining a railing for a passenger conveyor that does not have any harmful design defects on its surface and is not deformed by external forces.

[Summary of the invention]

The present invention relates to a handrail that is arranged in an endless manner and rotates synchronously with a rotating step, a handrail deck that guides the handrail, a balustrade member having an inner deck and an outer deck, and this balustrade member. In the railing of a passenger conveyor that is equipped with an exterior plate, etc. that covers the lower part of the railing member, a substantially U-shaped portion and a substantially U-shaped portion are formed at both ends in the width direction of the outer deck.
an engaging portion for engaging the substantially U-shaped portion and the substantially U-shaped portion; and an engaging portion for fixing the outer deck to the support body. A fixture is provided that includes a groove into which the head of the bolt is fitted, and a support piece located near the engagement portion and in contact with the support, and the fixture is fitted to the substantially U-shaped portion. One side of the joint is fitted.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 10 and 11, the outer deck 1
Although the structure near 8 is as explained in FIGS. 8 and 9, the present invention is characterized in that the fixture 23 has a structure in which a support piece 23a is added to the fixture 19 described above. That is, the dimensional relationship and engagement state between the outer deck 18 and the fixture 23 are the same as those shown in FIGS. 8 and 9, but this fixture 23 is
In addition to having a fixing groove 23c for storing the head 20a of the bolt 20 in the approximately central portion thereof and a vertical side 23b that engages with the inner periphery of the outer deck 18, the support body 21 is provided near both ends in the width direction. Load in contact like symbol N
It has a support piece portion 23a that transmits W ₁ to this support body 21. Furthermore, this support piece 23a is provided opposite to the vertical side 23b so as to form a groove 23d for inserting the exterior plate 9, and when an external force W ₂ is applied to the upper end of this exterior plate 9, It is designed to support this exterior plate 9 by coming into contact with it as indicated by the symbol T.

The support piece 23a, vertical side 23b, groove 23c, etc. of this fixture 23 are made precisely by aluminum extrusion molding, and then cut into lengths of about 100 mm and placed at key points on the outer deck 18. It is something that will be done.

〔Effect of the invention〕

According to the present invention explained above, FIGS.
In addition to the advantages explained in the figure, 1 Load from above on the outer deck 18 W ₁
A fixture 2 having sufficient rigidity to resist
3, and no harmful distortion is caused to the design member.

2. It becomes a sufficient reinforcement against the external force W ₂ applied to the upper end of the exterior plate 9, and no reinforcement is required in the special structure. This has advantages in preventing distortion of the exterior plate 9 and in terms of cost.

This effect is achieved.

[Brief explanation of the drawing]

Fig. 1 is a side view of the upper part of a conventional passenger conveyor, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a perspective view of Fig. 2, Fig. 4, 5
6 and 6 are drawings for explaining the conventional method, and are a sectional view corresponding to FIG. 2, FIG. 7 is a perspective view corresponding to FIG. 3 and showing other parts of FIG. Figure 8 shows a recently proposed parapet structure and is a sectional view corresponding to the conventional figure 2, Figure 9 is a sectional view showing only the main parts of Figure 8, and Figures 10 and 11 are 10 is a sectional view corresponding to FIG. 8, and FIG. 11 is a sectional view corresponding to FIG. 9, showing an embodiment of the present invention. 1...Step, 2...Handrail, 4...
Handrail deck, 5... Balustrade panel, 7...
Inner deck, 8, 18... Outer deck, 9... Exterior plate, 18A... U-shaped part, 18B... U-shaped part, 19, 23... Fixing tool, 20... Fixing bolt, 21... Support body, 23a...Support piece part, 23
b... Vertical side, 23c, 23d... Groove.

Claims (1)

[Scope of Claims] 1. A handrail that is arranged in an endless manner and rotates synchronously with the rotating step, a handrail deck that guides the handrail, an inner deck, an outer deck, and these inner decks. and a railing of a passenger conveyor comprising a support for supporting an outer deck, an exterior plate covering the lower part of the outer deck, etc., and a substantially U-shaped portion and a substantially U-shaped portion at both ends in the width direction of the outer deck. and an engaging portion that engages with the substantially U-shaped portion and the substantially U-shaped portion, and a bolt for fixing the outer deck to the support body. A fixture is provided that includes a groove into which the head is fitted, and a support piece located near the engagement portion and in contact with the support, and the engagement portion of the fixture is provided in the approximately U-shaped portion. A passenger conveyor railing characterized by being fitted on one side. 2. The railing for a passenger conveyor according to claim 1, wherein the upper end of the exterior plate is inserted between the substantially U-shaped part and the support piece part.