JPH0155193B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a curved passenger conveyor having a conveying path consisting of at least a portion of a ring.

The passenger conveyor has a conveyance path made up of treads, and movable handrails that move at the same linear speed as the treads are provided on both sides of the conveyance path. Passengers on the treads are then conveyed by grasping the moving handrails. However, in the case of a curved passenger conveyor as shown in Japanese Patent Publication No. 48-25559, when the moving handrails on both sides are driven at the same linear speed, one of the moving handrails on both sides is relatively lower than the tread. One will move forward and the other will move backwards relative to the tread. For this reason, it is conceivable that the hands of the passengers who are being transported may separate from their bodies and become unstable, resulting in an accident.

The present invention solves the above-mentioned drawbacks and aims to provide a curved passenger conveyor that does not cause problems due to the moving state of the moving handrail.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 8.

In the figure, 1 is the main frame of the passenger conveyor, 2 is a conveyance path formed on this and made up of a part of a ring, and 3 is a large number of treads arranged in succession to form the conveyance path 2.
3a is provided on one side in the direction of movement of the front wheel 3.
3c is a rear wheel pivotally connected to the side opposite to the front wheel 3b of the treadle 3; 4 is an endless shaft provided in the main frame 1 and arranged on both longitudinal sides of the main frame 1 to support the front wheel 3b; A front wheel rail 5 is similar to the front wheel rail 4 and is provided along this to guide the rear wheel 3c; Link 6 located outside the ring
6b is a first rack provided on the link 6a and disposed inside the outer chain 6 in an endless state;
c is a second rack provided on the side opposite to the first rack 6b of the link 6a; 6' is an inner chain provided similarly to the outer chain 6 and disposed inside the ring of the conveyance path 2;
6'a is this link, 6'b is the first rack, 6'
c is the second rack, 7 is the drive machine attached to the main frame 1, 8 is the outer chain wheel of the drive machine 7 that engages with the first rack 6b of the outer chain 6, and 8' is the first rack 6 of the inner chain 6'. 'b is an inner chain wheel that engages with the wheel; 9 is an outer railing erected on the main frame 1 and placed on the outside of the ring of the conveyance path 2;
9' is an inner handrail that stands on the main frame 1 and is placed inside the ring of the conveyance path 2; 10 is an endless outer handrail that is engaged with the outer handrail 9 and has one side disposed inside the main frame 1; , 10' is an endless inner handrail that is engaged with the inner handrail 9' and has one side disposed within the main frame 1;
Reference numeral 11 denotes a first drive mechanism, which is fixed to a shaft 11a that is provided on the main frame 1 and stands upright from the outside of the ring of the conveyance path 2, and is pivotally supported by a hanging arm, and is connected to the second rack 6c of the outer chain 6. A first gear 11b that meshes with the roller 11c, a roller 11c that is pivotally supported on the shaft 11a, a second gear 11d that is provided in parallel with this and that meshes with the first gear 11b, and a roller 11c that is provided on the main frame 1 and is connected to the roller 11c via a leaf spring 11e. and a pressing roller 11f that clamps and presses the outer moving handrail 10. 11'
is a second drive mechanism similar to the first drive mechanism 11 and provided corresponding to the inner moving handrail 10';
1'a is the shaft thereof, 11'b is the first gear meshing with the second rack 6'c of the inner chain 6', 11'c is the roller, 11'd is the second gear, 11'e is the leaf spring, 1
1'f is a pressure roller.

That is, the drive unit 7 drives the outer chain 6 via the outer chain wheel 8 and the inner chain 6' via the inner chain wheel 8', and the treadle 3 drives the front wheel rail 4,
It is guided by the rear wheel rail 5 and circulates within the main frame 1. The moving distance of the inner chain 6' and the outer chain 6 is longer on the outer side and shorter on the inner side. On the other hand, since the moving heights are the same but the inclination angles are different as shown in FIG. is necessary. That is, R1/R2×cosθ2/cosθ1...where A: Pitch circle diameter of the outer chain wheel 8 B: Pitch circle diameter of the inner chain wheel 8' R1: From the center of the ring of the conveying path 2 at the center of the width of the outer chain 6 R2: Radius from the center of the ring of the conveying path 2 at the width center of the inner chain 6' θ1: Inclination angle of the outer chain 6 θ2: Inclination angle of the inner chain 6' According to the above formula, the outer chain 6, the inner chain 6 The angular velocities of transport path 2 with respect to the center of the ring are equal, and the tread plate 3
moves along the conveyance path 2.

Further, the second rack 6c of the outer chain 6 drives the outer moving handrail 10 via the first drive mechanism 11, and the second rack 6'c of the inner chain 6' drives the second rack 6'c of the inner chain 6'.
The inner moving handrail 10' is driven via the drive mechanism 11', and as shown in FIG.
0' and the inclination angle of the outer moving handrail 10, by satisfying the following conditions, the outer and inner moving handrails 1
The angular velocities of the conveyance paths 0 and 10' relative to the center of the two circular rings can be made equal.

That is, R3/R4=A/B×C/D×F/E×cosθ3/cosθ4
...Here, R3: Radius from the center of the conveyor path 2 ring at the center of the width of the outer moving handrail 10 R4: Radius from the center of the conveyor path 2 ring at the center of the width of the inner moving handrail 10' A: Pitch circle of the outer chain wheel 8 Diameter B: Pitch circle diameter of inner chain wheel 8' C: Roller 11c of first drive mechanism 11
Diameter D: Roller 1 of the second drive mechanism 11'
1'c diameter E: second gear 11 of first drive mechanism 11
Number of teeth in d F: Second gear 1 of second drive mechanism 11'
Number of teeth in 1'd θ3: Inclination angle of the outer moving handrail 10 θ4: Inclination angle of the inner moving handrail 10' According to the above formula, the outer and inner moving handrails 10, 1
The angular velocity of 0' with respect to the center of the two circular rings of the transport path can be made equal. By matching the movement angular velocity of the treadle 3 to this angular velocity, the treadle 3, the outer and inner moving handrails 10, 10' do not undergo relative displacement during movement, and the passenger on the treadle 3 moves in a stable posture. You can grab the handrail.
This results in a highly safe curved passenger conveyor. In addition, in the above formula, θ1=θ2=
When θ3 = θ4 = 0, the tread plate 3, etc. moves in a circular motion in the horizontal plane, and the tread plate 3, outer and inner moving handrails 10, 10'
It is clear that the three members do not undergo relative displacement during movement.

As explained above, the present invention includes a large number of tread plates forming a conveyance path consisting of at least a portion of a circular ring, an outer chain connecting the outer sides of the conveyance path circular ring of these tread plates, an inner chain connecting the inner sides of the conveyance path circle, and A first drive mechanism that is engaged with the chain and frictionally drives the outer moving handrail with rollers, and a second drive mechanism that is engaged with the inner chain and frictionally drives the inner moving handrail with rollers are provided. The step board, the outer moving handrail, and the inner moving handrail are moved at the same angular velocity with respect to the center. This allows the outer and inner handrails to be moved in the same manner as the passengers on the treads, creating a highly safe curved passenger conveyor that allows passengers to grasp the handrails in a stable posture. It is something that will be realized.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a curved passenger conveyor according to the present invention, FIG. 2 is a plan view of FIG. 1,
FIG. 3 is an enlarged cross-sectional view taken along the line - in FIG. 2, and FIG.
Fig. 5 is a conceptual side view of the main part of Fig. 3, Fig. 6 is a conceptual side view of Fig. 4, and Fig. 7 is an expanded side view of Fig. 1, showing the inner and outer chains. FIG. 8 is an explanatory diagram showing the difference in the inclination angles of the inner movable handrail and the outer movable handrail, showing a developed side view of FIG. 1. DESCRIPTION OF SYMBOLS 1... Main frame, 2... Conveyance path, 9... Outer moving handrail, 9'... Inner moving handrail, 11... First drive mechanism, 11'... Second drive mechanism. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of Claims] 1. A conveyance path formed by a main frame and consisting of at least a part of a circular ring, and a plurality of conveyance paths connected by an outer chain on the outside of the circular conveyance path, and an inner chain on the inside of the circular conveyance path. The outer moving handrail of the circular conveyor path is moved at a linear speed higher than that of the outer chain by means of a roller. a first drive mechanism that is frictionally driven by the ring and moves at the same angular velocity as the angular velocity of the tread with respect to the center of the ring; and a gear mechanism that is provided on the main frame and engaged with the inner chain. a second drive mechanism for frictionally driving the inner moving handrail by rollers at a linear velocity slower than the inner chain and moving the handrail at the same angular velocity as the angular velocity of the tread.