JPS5974881A - 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 The present invention relates to a curved escalator in which the curvature of a guide rail that guides a step shaft is changed depending on the inclination angle.

First, a curved escalator according to the prior art proposed prior to the present invention will be explained with reference to FIGS. 1 and 2. In these figures, 1 is a conveyance path. This conveyance path 1 has a constant inclination section A that slopes vertically in the middle, and the inclination angle changes on both sides of this section A. Two upper and lower horizontal movement sections are formed through the upper and lower horizontal movement sections, and at both ends of these sections, inverted workpieces and workpieces are formed to connect the outgoing and return routes, and the horizontal projection plane is formed in a curved flat shape.

2 is a large number of fan-shaped steps that move along the conveyance path 1; 3 is a parapet erected on the main frame 4 along the longitudinal direction of the conveyance path 1;
Reference numeral 5 designates a movable handrail supported by the balustrade 3 and driven in synchronization with step 2 above.

Prior art curved escalators such as those described above were constructed so that the fan-shaped steps were guided by guide rails with a constant radius of curvature. However, in a curved escalator, the inclination angles of the outer and inner guide rails are different, so if the radius of curvature of the guide rail is constant as described above, it is necessary to equalize the angular velocity of the inner and outer circumferences of the fan-shaped steps. , it is necessary to change the spacing between the step axes that connect the adjacent steps to the chain at parts where the inclination angle changes, such as the upper and lower curves A and A of the conveyance path, and for this purpose the structure is There is a problem that it becomes complicated and costs increase.

The present invention provides a curved escalator as described above.
The guide rail is formed to have a constant radius of curvature in the constant slope section in the middle of the conveyance path, the radius of curvature increases as the slope angle decreases in the upper and lower curved sections, and the radius of curvature is constant in the upper and lower horizontal movement sections. The purpose of the present invention is to provide a curved escalator with a simple structure and low cost by solving the rJJ problem described above by forming the escalator to have a constant radius of curvature larger than the radius of curvature of the inclined section.

Next, the principle of the curved escalator of the present invention will be explained with reference to FIGS. 3 and 4.

FIG. 3 is a principle diagram showing the shape of the guide rail. Third
In the figure, a curved person. -A7 r BO-87 indicates outer and inner guide rails for guiding the drive rollers on the outer and inner peripheries. The outer and inner guide rails removably support and guide drive rollers attached to the ends protruding from the step outer periphery and the inner periphery of the step shaft connected to the chain that drives the fan-shaped steps, respectively, as will be described later. It is something. AoA, , A, A.

are the upper and lower horizontal movement sections of the outer guide rail, the radius of curvature R1, BoB2. B, B, is above the inner guide rail.

In the lower horizontal movement section, the radius of curvature is R2, and these Io
-ζme＼ The center is 0,0'. A2A3 + A4A3 are the upper and lower surface parts of the outer guide rail, B2B5 and B4B5 are the upper and lower surface parts of the inner guide rail, and as the radius of curvature of these curved parts changes, the center also changes from 0, 0' to O'. .

A3A41 B3B4 is a constant slope section at the middle part of the outer and inner guide rails, and in these parts, it forms an arc in the horizontal projection plane.
′. Further, AH+ B1, A6 r B6 indicate positions corresponding to the tips of the comb-like plates of the upper and lower floorboards, respectively, and Ao.

BO% A7. At a portion away from B7, the fan-shaped step is reversed as the chain meshes with the chain gear, and returns by the return path just below the guide rail on the outbound side of the conveyance path in the vertical direction. The radius of curvature of the outer and inner guide rails in the horizontal projection plane gradually decreases from the horizontal movement section side to the constant slope section side at the upper and lower surface portions.

FIG. 4 is a principle diagram showing the step formation of the present invention, and shows the dimensional relationship when the step axes of adjacent steps are directly connected by a roller chain or link.

When traveling in the upward and downward horizontal movement sections, there is no difference in level between adjacent steps and there is no overlap between them, so the step surface is represented by the figure ABCD, and if each point is connected with a straight line, it becomes a trapezoid ABC.
It becomes D. If the inclination angles at the portions corresponding to the outer and inner peripheries of each step are θ1' and θ2', the exposed surface of the step in the intermediate constant inclination section is AB'C'D,
The overlapping portion with adjacent steps becomes BB'C'C. The exposed surface of each adjacent step is a trapezoid AB'C'
Dtl - polygon AB'EF arranged on a plane sequentially...
DC'GH..., and the point A outside this polygon
The radius of the circumscribed circle connecting B'EF... is R1, and the radius of the circumscribed circle connecting the point DC'GH... on the inner side of θ1' is R2.
'('If there are two, the following relational expression holds true.In addition, θ
When 1'=θ2'=0, calculate the diameters of the outer and inner circumscribed circles R,', R2'. Also, A B=l,, C
Let D=12.

R'15= A B cos θ1'= l, cos l
, t/DAB'=α, /AB'C'=β+10B'C'
= 7.

If l B ' OA = δ, then α = □ ... (2) Although the calculation formulas from formulas (3) to (4) above are omitted, formula (4) has a value of 0.1%. This is an approximate value that approximates with some degree of precision.

Similarly, the radius of the outer guide rail that guides the steps of the present invention is expressed by the diameter of the inner guide rail.

That is, the inclination angle θ1 of the outer periphery and the inner periphery. When θ2, 0'
The step is guided in the intermediate constant slope section on a spiral guide rail that forms an arc in the horizontal projection plane with a radius of curvature R1ゎ, R, centered at , and the step is guided in the upper and lower horizontal movement sections. Sometimes the radius of curvature R, centered at 0,
It is sufficient to guide the guide rail on a guide rail forming an arc of R2. In addition, since the inclination angle is constant in the intermediate constant inclination section, the radius of curvature of the guide rail is also a constant value, and the inclination angle changes.

In the lower surface portion, the radius of curvature of the guide rail is a value determined by changing the values of θ1 and θ2 according to the above equations (51, (6)K) according to the inclination angle.

An embodiment of the present invention will be described below with reference to FIGS. 5 to 9.

In Figures 5 to 9, the same reference numerals as in Figures 1 and 2 indicate the same parts, 6 is a step shaft, 7 and 8 are outer and inner chains, and these chains have fan-shaped steps at 7° and 8. 2
One end portions of the two are connected to each other by a step shaft 6. 9
are drive rollers 10 pivotally supported at both ends of the step shaft 6;
is a driven roller pivotally supported on the other end side of the fan-shaped step 2, 11° 12 is an outer guide rail, 13.14 is an inner guide rail, and these guide rails 11, 12° 13.14 are the main frame. It is fixed at 4.

As shown in FIGS. 5 to 7, the step shaft 6 that supports the fan-shaped step 2 via an attachment (not shown) is formed into a stepped shaft that is inclined in the width direction, and the step shaft 6 that supports the fan-shaped step 2 via an attachment (not shown) is formed into a stepped shaft that is inclined in the width direction. 9 is upward, inner drive roller 9
is positioned at the bottom. The drive roller 9
is rotatably supported on an outer guide rail 11° and an inner guide rail 13 with a height difference corresponding to the step shaft 6, and a chain 7.8 is attached to these guide rails 11.13.
is configured so that the above-mentioned step 2 is run by being guided. The driven roller 10 is connected to the outer guide rail 12.
The outer guide rail 11. of the drive roller 9 mentioned above is removably supported on the inner kite rail 14. Coupled with the support provided by the inner guide rail 13, the fan-shaped step 2 is configured to be held horizontally and run on the outbound and return routes of the conveyance path. The outer guide rails 11, 12 and the inner guide rails 13, 14 have different radii of curvature at the top of the conveyance path, the bottom horizontal movement section, and the constant slope section, and change at the top and bottom surfaces between these, respectively, according to the above-mentioned principle. This allows the step shaft 6 to be directly connected to and driven by the outer and inner chains 7.8.

Note that the drive roller 9 and these guide rails 11.
13, the driven roller 10 and these guide rails 12 and 14 are arranged on the center side of the step 20 in the width direction. In addition, a shoe 15 (or roller) is provided at the center of the back surface of the step 2 to receive the force in the radial direction of the force idle rail, and these shoes are engaged with a guide rail 16 provided to protrude from the main frame 4. This is to prevent meandering in step 2.

As shown in FIG. 6, the fan-shaped step 2 is provided with a riser 2b on the lower side of the conveyance path of the step board 2a, and cleats (not shown) are formed on the surfaces of these risers 2b. The riser 2b has a radius of curvature R,' of the outer circumference and inner circumference of the step.
Corresponding to R2', the arc length of the step outer circumference is 11. A cleat is provided that is formed of a part of a conical surface having a radius of curvature of the decoy arc length l on the inner circumference of the step, and is perpendicular to the surface of the tread plate 2a, so as to mesh with the cleat of the tread plate 2a. It is configured.

As shown in FIG. 8, the outer and inner chains 7.8 are respectively meshed with chain gears 17.18 at the upper reversal section, and these chain gears 17.18 are driven by a drive machine 19 via a roller chain 20. It has been configured to be used. The chain gear 17 with which the outer chain 7 meshes and the chain gear 18 with which the inner chain 8 meshes have a ratio proportional to the radius of curvature R, I and R2' of the horizontal movement section in step 2, and the pinch circle radius is smaller than that of the outer chain. The chain gear 17 with which the inner chain 7 meshes is larger than the chain gear 18 with which the inner chain 8 meshes, and is configured so that the outer and inner chains 7.8 can be driven at a constant angular velocity.

Note that the lower reversing section is provided with two driven chain gears having a pinch circle radius proportional to the radius of curvature R1'+R2' of the horizontal movement section, similar to the above-mentioned upper reversing section. A chain is hung on the outside and inside. The above driven chain gear is on the outside.

The necessary tension is applied to the outer and inner chains by a tensioning device that is attached to a trolley that can be moved according to the elongation of the inner chain, and is similar to a normal linear escalator except that the trolley is guided by an arcuate rail. It has become.

Then, the step shaft 6 is reversed while drawing a cylindrical locus centered on the chain gear shaft installed horizontally at the upper and lower reversing portions of the conveyance path.

Furthermore, the vertical step of the stepped shaft 6 is such that the diameter of the chain gears 17, 180 of the outer and inner chains is rH.
1r2, and the radius of curvature of the outer and inner chains of the horizontal movement section is R,', R2', and is expressed by the following formula.

As shown in FIGS. 7 and 9, the center portions of the outer and inner connectors 21 and 22 are fitted onto the step shaft 6, and the connectors 2
1.22 is outside, inside chain 7°8 link 7m, B
The link 7a is inserted between the links 7a and 7a.

The pin guide bearings 21b of the holes 21a and 22a are engaged with the holes 21a and 22a provided on both sides of the connectors 21 and 22, so that the pin guide bearings 21b of the holes 21a and 22a
, 22b are each formed into a spherical shape. Also, 2
The dimension a between the centers of 1a and 22a is the outer and inner chain 7
．． The dimensions are not an integral multiple of the pitch p of 8. In actual design, the dimension a-n between the adjacent step axes of the outer and inner chains, as well as the distance between the joints
Since D is small, practical design cannot be carried out without significantly increasing the width 2 between the outer and inner chains, but the dimension a between the connecting parts incorporated in one or both of the outer and inner chains is This is because the width dimension W can be designed to any size if it is not made equal to the chain pitch p. Although not shown in the figure, the movable handrail is driven by applying the driving force from the upper reversing part and the chain gear provided. By doing so, even if the moving handrail made of a continuous body is driven at a constant speed without using a variable speed moving handrail, there will be no difference in angular velocity from the step.

The configuration of this embodiment other than that described above is shown in FIG.

Since it is similar to the prior art curved escalator shown in FIG. 2, the explanation will be omitted.

In the curved escalator of this embodiment, the step shaft is supported and guided by the drive roller provided thereon by the outer and inner guide rails having the above-mentioned configuration, so the step shaft is directly connected to the chain and the step The structure is simple, the relative dimensions between adjacent steps can be easily regulated, and the safety is high.In addition, the step axis is fixed to the horizontal plane on the outbound and return sides of the conveyance path. Since the arrangement is symmetrical, manufacturing is easy and manufacturing costs can be reduced.

Having explained the above, the curved escalator of this invention is
A conveyance path having upward and downward horizontal movement sections through an upper and lower curved section in which the inclination angle changes to the upper and lower sides of a constant slope section in the middle, and whose horizontal projection plane is curved, and this conveyance path. a plurality of fan-shaped steps that move along a road, step shafts provided on these steps are connected to outer and inner chains, respectively, and a guide rail for guiding the step shafts is formed to have a constant radius of curvature in the constant slope section, The upper and lower curved portions are formed so that the radius of curvature increases as the inclination angle decreases, and the horizontal movement section is formed to have a constant radius of curvature larger than the radius of curvature of the constant slope section.

Therefore, the curved escalator of this invention can directly connect the step axis of each fan-shaped step to the outer and inner chains, and can easily regulate the relational dimensions between adjacent steps with a simple structure, making it safe. Highly sexual,
It also has the effect of reducing manufacturing costs.

[Brief explanation of drawings]

Fig. 1 is a front view of the curved escalator, Fig. 2 is a plan view thereof, Fig. 3 is a plan view for explaining the principle of the shape and dimensions of the guide rail of the present invention, and Fig. 4 is the inclination angle and curvature of the guide rail. 5 is a front view showing the steps of a curved escalator according to an embodiment of the present invention and their guiding mechanism; FIG. 6 is a side view of the same constant slope section; FIG. FIG. 7 is a plan view of the same, FIG. 8 is a side view of the reversal section, and FIG. 9 is an enlarged view of a part of the section (■) in FIG. 7 in cross section. 1... Conveyance path, 2... Fan-shaped step, 2a... Step board, 2b... Riser, 4... Main frame, 6... Step axis, 7° 8... Outside, inside chain , 7 a +
8 a...Link, 7b, 8b...Bin, 9...
Drive roller, 10...Followed roller, 11.12...
Outer guide rail, 13°14...Inner guide rail, 17.18...Chain gear, 19...Driver, 21.
22...Connector, 21a. 22a...Hole, 21b, 22b...Bin guide bearing part, A...Constant slope section, B...Upper and lower parts,
...Horizontal movement section, work...reversal section. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals. Agent Shin Kuzuno - (and 1 other person) tI Kuchi 2 Ro Roga 6 Procedures Amendment (voluntary) Showa So, 7Y1 and others 1 1.1- Director-General of the Agency 1, Indication of the case Take IQji 1987 -183315
No. 2, Title of the invention Curved escalator 3, Department making the amendment (1) Claims section of the specification (2) Detailed description of the invention section of the specification (3) Drawing 6, Contents of the amendment (1) ) Amend the claims of the specification by attaching a separate sheet. (2) Specification box page 7 line 13 “Curvature radius R1n,
"R2n is constant" is replaced by "curvature radius R + (θ1), R
2(θ2) is constant.” (3) Page 9, line 3 “R′δ=ABcOSθ1′=t
1cOSθ1′” is replaced by “R1′δ=ABcoSθ1
' = t, cos θ1'. (5) Page 9, line 12, ``R' = J and rub'
(θ1')=''. (6) Page 100, line 2, formula (4) is about 0.1%.
The statement is corrected to "Equation (, 4) is approximately 0.01%." and correct it. and correct it. (9) Same page 10, line 13, 1 radius of curvature Jn, R2n
The phrase "of" is corrected to "of the radius of curvature R+(θ+), R2(θ2)." GO) On page 144, line 7, ``in the horizontal movement section of step 2'' is corrected to ``in the horizontal movement section of step chain 7.8'' - ■ Drawings Figures 1, 2, 3, Figures 5 and 8 are revised as shown in the attached sheet. 7. Attached documents (1) Document stating the entire text of the amended scope of claims
1 copy (2) Corrected drawings
1 Document containing the entire text of the claims after amendment 2, Claims (11) The inclination angle changes upward and downward through the upper and lower curves of the constant slope section in the middle. It has a horizontal movement section,
and a guide that includes a conveyance path whose horizontal projection plane is curved and a number of fan-shaped steps that move along this conveyance path, and that connects the step axes of these steps to the outer and inner chains, respectively, and guides the step axes. The rail is formed to have a constant radius of curvature in the constant slope section, the radius of curvature increases as the slope angle decreases in the upper and lower curves, and the radius of curvature in the constant slope section is formed in the horizontal movement section. A curved escalator characterized by being formed with a large constant radius of curvature. (2) A curved escalator according to claim 1, in which the relational expression between the radius of curvature and the inclination angle of the guide rail is as follows: However, in the above formula, R+(θ1): curvature of the outer guide rail at any position. Radius R2 (θ2): Radius of curvature R1 of the inner guide rail at any position: Radius of curvature R2 of the outer guide rail in the upper and lower horizontal movement sections: Radius of curvature θ1 of the inner guide rail in the upper and lower horizontal movement sections Side guide rail inclination angle 19): Inclination angle of the inner guide rail. (3) The outer circumference and inner circumference of the tread of the fan-shaped step are formed by concentric arcs of the following formula, but in the above formula, t1 the length of the arc on the outer circumference of the second step, t2 the length of the circular arc on the inner circumference of the second step, and the radius of curvature, and the riser is formed by a part of a conical surface having a curvature of tl at a position corresponding to the outer periphery of the step and t2 at a position corresponding to the inner periphery of the step, and furthermore, a cleat is provided on the riser in a direction perpendicular to the tread surface to prevent the cleat of the tread. Claim 1 configured to mesh with
The curved escalator according to item 1 or 2. (4) The step shaft supporting the fan-shaped step is an uneven shaft in which the outer drive section is located above the inner drive section on the outgoing path of the conveyance path. curve escalator. (5) A curved escalator according to claim 4, in which the vertical step of the step shaft of the step shaft is expressed by the following formula. However, in the above formula, h: step rl: radius r2 of the chain gear of the outer chain: r2 of the inner chain. Radius of the chain gear R1': Radius of curvature of the outer chain in the water-drying movement section R2'': Radius of curvature of the inner chain in the horizontal movement section. The curved escalator according to claim 4 or 5, which is constructed so as to mesh with a large chain gear and a chain gear with a small radius, and to move the steps by driving the chain gear at the upper end. (7) Sf Claims 1, 2 and 2, wherein the chain is fitted with the UIC and a connector is inserted between the links of the chain, and the pin guide bearing portion of the chain provided in the connector is formed into a spherical shape. The curved escalator according to item 3, item 4, item 5, or item 6. (8) Claims in which the dimension between the holes having the pin guide bearing portion of the connector is set to a dimension other than an integral multiple of the chain pitch. The curved escalator described in item 7. ?IE 3? :p Kurara 93 Zuga 5 Kuchi Showa Year Month 1] Commissioner of the Japan Patent Office 1 Display of case ↑.1' Gansho 57-1833□
592, Name of the invention Curved escalator 3, Relationship with the case of the person making the amendment Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name Name (601) Mitsubishi Electric Corporation Representative Jinhachibe Katayama 4; Agent (1) In Column 6 of the Detailed Description of the Invention in the Specification, Contents of Amendment (11EAIIifU, page 9, line 10, "" is amended to read ".").

Claims (8)

[Claims] (1) It has upper and lower horizontal movement sections via upper and lower curves in which the inclination angle changes to the upper and lower sides of the intermediate constant slope section,
and includes a conveyance path whose horizontal projection plane is curved, and a large number of fan-shaped steps that move along this conveyance path, and a guide that connects the step axes of these steps to the outer and inner chains, respectively, and guides the step axes. The rail is formed to have a constant radius of curvature in the constant slope section, the radius of curvature increases as the slope angle decreases in the upper and lower curves, and the radius of curvature in the constant slope section is formed in the horizontal movement section. A curved escalator characterized by being formed with a larger constant radius of curvature. (2) A curved escalator according to claim 1, in which the relational expression between the radius of curvature and the inclination angle of the guide rail is as follows: However, in the above formula, R1 (θ1): curvature of the outer guide rail at any position Radius R2 (θ2): Radius of curvature of the inner guide rail at any position R8 2 Radius of curvature of the outer guide rail in the upper and lower horizontal movement sections R2: Radius of curvature θ of the inner guide rail in the upper and lower horizontal movement sections: Inclination angle θ2 of the outer guide rail; inclination angle of the inner guide rail. (3) The outer circumference and inner circumference of the tread of the fan-shaped step are below R, / 12R2' However, in the above formula, 11:゛The length of the arc of the step outer circumference is 7! ! The length of the arc of the inner periphery of the two steps R1' The radius of curvature of the outer periphery of the two steps R2' The riser is constructed of concentric arcs with the radius of curvature of the inner periphery of the two steps, and the riser is located at a position corresponding to the outer periphery of the step l8, and on the inner periphery of the step. It is formed by a part of a conical surface having a curvature of 12 at the corresponding position, and the riser is further provided with a cleat in a direction perpendicular to the tread surface so as to mesh with the cleat of the tread! A curved escalator according to the first or second term of the range of '+-H. (4) The step shaft supporting the fan-shaped step is an uneven shaft in which the outer drive section is located above the inner drive section on the outgoing path of the conveyance path. curved escalator. (5) A curved escalator according to claim 4, in which the vertical step of the step shaft of the step shaft is expressed by the following formula. However, in the above formula, h: step r,: flat diameter of chain gear of outer chain r2: inside Radius R2' of the chain gear of the chain: Radius of curvature R2' of the outer chain in the horizontal movement section: Radius of curvature of the inner chain in the horizontal movement section. (6) A patent in which the outer and inner chains are meshed with a chain gear with a large radius and a chain gear with a small radius at the reversed portions at the upper and lower ends of the conveyance path, and the steps are moved by driving the chain gear at the upper end. Curved escalator 0 according to claim 4 or 5 (7) Claims 1 and 2, in which a connector is inserted between the links of the chain by fitting into the step shaft, and the bin guide bearing portion of the chain provided in the connector is formed into a spherical shape. The curved escalator according to item 3, 4, 5 or 6. (8) The curved escalator according to claim 7, wherein the dimension between the holes having the bin guide bearing portions of the connector is a dimension other than an integral multiple of the chain pitch.