JPS63352B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an escalator comprised of interconnected steps.

Escalators are intended for the transportation of general passengers, and the depth of the steps is approximately 40 cm. Therefore, it is dangerous to transport vehicles such as wheelchair users, baby carriages accompanying passengers, and shopping carts. Therefore, for example,
As shown in Japanese Patent No. 139083, it has been proposed that one step is composed of a main step and a secondary step, and has a longer depth dimension. This is shown in FIGS. 1 to 3.

In the figure, 1 is the truss of the escalator, 2 is the circulation path set in the truss 1, 2a is the outgoing path in the circulation path 2, 2b is also the return path, and 2c is the outgoing path 2a and the return path 2.
3 is a first rail arranged along the circulation path 2; 4 is also a second rail; 5 is also above the first and second rails 3 and 4 on the outward path 2a; The third rail located in
6 is a main step, 7 is a secondary step arranged adjacent to the main step 6, 8 is a movable step consisting of the main step 6 and secondary step 7, and 9 is provided on the back side of the main step 6 and secondary step 7, and connects them both. A hinge 10 is attached to the upper end of the main step 6 and a first wheel 11 rolls on the first rail 3.
12 is a second wheel that is attached to the lower end of the follower step 7 and rolls on the second rail 4; 12 is a third wheel that is pivoted to the upper end of the follower step 7 and rolls on the third rail 5; 13 is a third wheel that is attached to the upper end of the follower step 7 and rolls on the third rail 5; a step chain 14 coupled to the shaft of the wheel 10, connecting the moving steps 8 and driven by an electric motor (not shown);
are handrails erected on both sides of the movable steps 8.

That is, when the step chain 13 is driven, the upper surfaces of the main step 6 and the secondary step 7 move on the outward path 2a while forming the same horizontal plane. Then, by appropriately setting the depth dimensions of the main step 6 and the secondary step 7,
Vehicles can be loaded. In addition, in the reversing section 2c, the main step 6 and the secondary step 7 rotate around the hinge 9, and the movable step 8 is bent into the reversing section 2c.
Pass through c.

However, in such a configuration, passengers cannot use the main step 6.
When you step on the joint part A of the secondary step 7, the main step 6 becomes the first step.
Rotating in the direction of arrow B about the axis of the ring 10, the joint portion A sinks. At the same time, the follower step 7 rotates in the direction of arrow C around the axis of the third wheel 12, the lower end of the follower step 7 rises, and the second wheel 11
Move away from rail 4. With these, the main steps 6
The horizontal surface provided by the follower step 7 is lost, and the upper surface of the movable step 8 becomes unstable, which is dangerous.

This invention improves the above-mentioned problem by pivoting the main step and the secondary step by a common shaft, and by appropriately arranging the axis of the common shaft and the axis of the third wheel. To provide an articulated step escalator whose movable steps can always be kept horizontal even when passengers are on board.

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

In the figure, 6a is a main bracket that supports the main step 6, 7a is a sub bracket that supports the secondary step 7, 1
A first shaft 5 is supported at the upper end of the main bracket 6a and has a first wheel 10 attached to its end, and a second shaft 16 is supported at the lower end of the slave bracket 7a and has a second wheel 10 attached to its end.
1 is the attached second shaft, 17 is the main bracket 6a
A third shaft is removably supported at the lower end by a support 18 and a countersunk screw 19, and a third wheel 12 is attached to both ends of the third shaft, forming a through shaft and penetrating the step chain 13;
20 is fixed to the middle part of the main bracket 6a, pivotally supports the upper end of the sub bracket 7a, and supports the support 18.
and an articulating shaft that is detachably attached to the slave bracket 7a with flat head screws 19. Other than the above, the configuration is the same as in FIGS. 1 and 2.

That is, the main bracket 6a and the sub bracket 7
a is pivotally connected by an articulating shaft 20, and the axis of the articulating shaft 20 is located directly below and near the joint between both steps 6 and 7. Further, the axial center of the third shaft 17 is arranged closer to the subordinate bracket 7a than the axial center of the articulated shaft 20 (it may be directly below the articulated shaft 20). With this structure, even if a passenger steps on the joint A between the main step 6 and the secondary step 7, this area will not sink, and the lower end of the secondary step 7 will not rise.
Note that even if the user steps on the front end D of the main step 6 or the rear end E of the secondary step 7, the step chain 13 is attached to the third shaft 17, so the movable step 8 will not rotate.

In addition, centering on the frontmost end F of the upper surface of the main step 6,
The radius R of the circular arc passing through the outer end of the bearing portion of the common shaft 20 of the upper-adjacent secondary step 7 is slightly (2 to 3mm) is set small. When removing the follower step 7, remove the countersunk screw 19 and remove the support 18.
is removed, and then the follower step 7 is rotated around the frontmost end F. At this time, since the radius R<distance S holds, the follower step 7 can be easily removed. The same applies when assembling the follower step 7.

7 and 8 show other embodiments of the invention.

In this embodiment, the first shaft 15 forms a through shaft, which is attached to the upper end of the main bracket 6a by means of a support 18 and a countersunk screw 19. Further, a step chain 13 is attached to the first shaft 15. Third axis 17
does not form a through shaft, and the step chain 13 is not attached. Further, the outer end of the articulated portion of the subordinate bracket 7a extends toward the main bracket 6a, and the axis of the articulated shaft 20 is located closer to the main bracket 6a than the joint A of both steps 6 and 7.
Located on the side. Note that the articulated shaft 20 is not provided with the support 18 and the countersunk screw 19. The other parts are the same as those in FIGS. 4 to 6.

The functionality of this embodiment is similar to that of FIGS. 4-6.

When installing the movable step 8, the main step 6 and the secondary step 7 are connected in advance on the ground, etc., and then attached to the main shaft 15 (in Fig. 4, radius R > distance S, and the secondary step 7 cannot be attached or detached independently. ).

Note that the articulating shaft 20 in each of the above embodiments may be a through shaft passing through both sides. Also, instead of attaching the third wheel 12 to the lower end of the main bracket 6a, the upper end of the subordinate bracket 7a is extended and attached to that part, and the lower end of the main bracket 6a is shortened and the third wheel 12 is attached to the middle part of the subordinate bracket 7a. You may also wear them.

As explained above, in this invention, the movable steps of an escalator are composed of a main step and a secondary step, which are commonly pivoted by an articulated shaft, and the axis of the articulated shaft is located near the joint of both steps. The axis of the third wheel provided on the main step or secondary step is placed directly below the axis of the articulated shaft, or closer to the side of the secondary step or main step where the third wheel is not installed. Therefore, no matter where on the moving step the passenger rides, the moving step always maintains a stable horizontal surface and can maintain safety.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a longitudinal section of an articulated step escalator, Fig. 2 is an enlarged view of a portion of Fig. 1 showing a conventional articulated step escalator, and Fig. 3 explains the behavior of the moving steps in Fig. 2. 4 is an enlarged sectional view showing an embodiment of the articulated step escalator according to the present invention, and is a view corresponding to FIG. 2, FIG. 5 is a plan view of FIG. 4, and FIG. 6 is a - line in FIG. 7 is an enlarged sectional view showing another embodiment of the present invention, and is a view corresponding to FIG. 4, and FIG. 8 is a plan view of FIG. 7. 2a...Outward path of the circulation path, 2c...Same left reversal section,
6... Main step, 6a... Main bracket, 7... Secondary step, 7a... Secondary bracket, 8... Moving step,
10...First wheel, 11...Second wheel, 12...Third wheel
Ring, 17...Third axis, 20...Articulating axis. Note that the same reference numerals in the figures indicate the same parts.

Claims (1)

[Claims] 1 A main step to which a first wheel is attached and a secondary step to which a second wheel is attached are arranged adjacent to each other in the direction of movement, and a third wheel is attached to the main step or the secondary step to form a moving step, which A plurality of steps are connected in an endless manner and are supported by the first, second, and third wheels and operated in circulation, and on the outward journey, the upper surfaces of the main step and the secondary step form the same horizontal plane, and in the reversal section, both steps are In an articulated step escalator that is bent to each other, the main step and the secondary step are pivotally connected by a shaft that connects them to each other, and the axis of the articulated shaft is located at the joint between the main step and the secondary step. and the axis of the third wheel is placed directly below the axis of the articulated shaft or closer to the secondary step or the main step where the third wheel is not provided. An articulated step escalator featuring