JPS60106782A - Main frame of curve escalator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a main frame of a curved escalator having a conveyance path having an arcuate shape in a horizontal projection plane.

[Prior Art] A circular curved escalator has an arc shape in a horizontal projection plane] - A main frame is provided that constitutes a conveyance path having a lower horizontal portion and an inclined portion connected to the horizontal portion.

That is, as shown in Fig. 1, a circular curved escalator (1
), the conveyance path (2) along which the step (3) moves is spirally formed into an arc shape as shown in FIG. 2 in a horizontal projection plane. The step (3) is connected to an endless belt (5) housed in the main frame (4), and is driven by a drive source (6) together with a handrail (7). A number of truss units have been proposed for the main frame (4) as shown below.

That is, although FIG. 3 is a diagram showing a horizontal projection plane of the main frame (40) constructed by connecting a large number of truss units,
Trusyu = h (40a), (40b), (
40c) -(40n) are arranged in series with each other and connected by smooth circular arcs drawn with radii of curvature R1 to R5 centered on centers 01 to 05. This trough, 1:, 7t (40a), (40b), (40
c) In the polygonal truss configured by
They were directly connected with two bending points.

That is, the upper and lower chord members forming the horizontal portion of the truss and the upper and lower chord members forming the sloped portion of the truss are connected so as to be bent only at the intersections of these horizontal portions and the sloped portion. The above-mentioned chord members are provided with vertical longitudinal members, and cross members are installed horizontally between the outer truss and the inner truss, and the rails of the escalator are provided on these cross members in the longitudinal direction of the conveyance path.

However, in the past, because the chord members were connected only at the intersections with the horizontal and inclined parts of the truss, the height from the top of the truss to the transfer surface of the rail was not constant at the pick-up position of the vertical members. , it took a lot of effort and time to center the rails, etc., and the manufacturing cost was high.

Furthermore, since the various cross-sectional shapes of the truss were different, the brackets that could be accessed to the vertical members were not standardized, increasing the number of parts and making it difficult to reduce product costs.

[Summary of the Invention] The present invention has been made based on the circumstances described in item 1, and is a method of bending upper and lower chord members constituting a truss into multiple stages at a transition point from a horizontal portion of a truss to an inclined portion or to an inclined portion. To provide a main frame of a curved escalator which facilitates centering of rails, etc. by arranging vertical members at certain points so that the height from the top surface of the truss to the rail transfer surface can always be kept constant.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 4 to 6.

FIG. 4 is a side view of an outer truss in a truss constructed by connecting truss units, and FIG. 5 is a side view of the inner truss. In these figures, A1 +A
An
, Dn, Bn, and En are connected to form a truss (40).

), lath unit (40a), (40b), (40c)
-(40n) is the string material (41) and the lower chord material (42).
), the vertical member (43) installed vertically between the -1 lower chord members (41) and (42), and the lower chord members (41)
, (42) and longitudinal members (43), the diagonal member (44) extends across the quadrilateral opposite side.

The outer truss and the inner truss in item 1 are formed in a shape in which a horizontal portion H and an inclined portion S at both ends are connected by a bent portion B as shown in the figure. This bent part B is the upper chord material (4
1) and the lower chord member (42) are bent in multiple stages, two stages in this embodiment, and are connected to the horizontal part H and the inclined part S, respectively.

Of course, the number of bending steps is not limited to two, and may be determined by taking various factors into consideration.

By the way, in the past, the horizontal part H and the inclined part S were bent only at their intersection points as shown by the imaginary lines, which caused the above-mentioned drawbacks, but in the present invention, as described above, ] 2. The lower chord member is connected to the linear inclined portion S via the bent portion B formed by bending the lower chord material into multiple stages. A vertical member (43) is disposed at the bending point of the bending portion B. That is, as shown in the cross-sectional view of Fig. 6, the vertical members (43), (43) are vertically spanned between the J second chord member (41) and the lower chord member (42), (43), cross member (45) between (43)
) is suspended horizontally. A part of the rail (47) and the lower rail (48) can be accessed from this side part (45) via the rail bracket (48). An axle (50) having drive rollers (49) and (49) is disposed on this rail, and this axle (50) has a step (not shown) and is driven by an endless chain.

Opposing the lower rail (48) is a clamping l/-ru (51).
) is arranged, and this rail (51) is connected to the bracket 1-(5
2) to the longitudinal members (43).

A driven roller (54) attached to an axle (53) is arranged between the lower rail (48) and the clamping rail (51),
It is configured to roll between both rails (48) and (51).

In the figure, Ll is the distance I1 from the surface of the L string ta' (41) to the rolling surface of the upper rail (47). L2 is Dogengetsu (
The distance N1 from the surface of the clamping rail (51) to the rolling surface of the clamping rail (51) is the distance N1 from the surface of the clamping rail (51) [Effects of the Invention] The present invention provides the distance N1 from the surface of the clamping rail (51) to the rolling surface of the clamping rail (51). Since I tried to bend it, t,, +L
2 can be kept constant, making it possible to use the bent part as a reference point for rail centering.In general, it is difficult to set a centering reference for rail centering of curved escalators because the trajectory is double-contoured. It is possible to overcome the disadvantages that were previously considered.

Furthermore, the rail brackets that can be used as vertical members are Truss M.
Can be made identical in cross section, number of parts, set)′
/ Due to the low number of man-hours, it is possible to reduce the product cost.

[Brief explanation of drawings]

Fig. 1 is an external view of the curved escalator, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of the main frame, and Figs. 4 and 5 are of the outer truss constituting the main frame of the present invention. A side view and a side view of the inner truss, FIG. 6 is a cross-sectional view of a curved escalator using a "-2 main frame. (40)...Truss, (40a), (40b), (40c) - (40n)
...Truss unit, (41)...Top chord member, (42)...Lower chord member, (43)...Vertical member, (H)...Water i11 part of truss. (B)...The bending of the truss is the part, (S)...The f1 diagonal t of the truss "iR6 agent Masu Oiwa k, 11 Figure 1 Figure 2 Figure 3 Figure 4 Procedure amendment ( Autotato) 59172 [i. Showa year month day 2, name of invention -F frame 3 of curved escalator, person making correction L21!JJ) +;+□, =-J, +J+JjJ,'l
'#)5, Kojino)):'s specification AH (7:l6IiJI)IF +tllll S+<Q! +4 (7) 4151゜6, supplementary details:! The 6th and 1st 11th driven rollers (54)
The description J is changed to "Drive roller (54') J and sleeve 11"
do. Below 1-

Claims (1)

[Claims] In a conveyor path which has an arc shape in the horizontal projection plane and consists of a horizontal part and an inclined part of the step, is constructed by a truss in which a number of truss units are connected, from the horizontal part of the truss to the inclined part or from the inclined part to the horizontal 1. A main frame of a curved escalator, characterized in that the upper and lower chord members forming the truss unit are bent into multiple stages at a transition point to the truss unit.