JP2719591B2 - Escalator - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an escalator, and more specifically, a traveling speed is slow at a portion where a person enters and exits the escalator (the same as the conventional speed), and is high (a conventional speed) at an inclined section in the middle. The present invention relates to an escalator capable of reducing the time required for riding even a long escalator (at higher speed).

[Prior Art] Recently, escalators have tended to be long, and escalators exceeding several tens of meters to over 100 meters have been put to practical use.

And an escalator with such a long mileage,
There is a demand for speeding up because of long riding time, and in some countries the total high speed exceeds 60 m / min.However, simply increasing the running speed is very dangerous for getting on and off, People are unable to get on and off, and there have been reports of major accidents at long and large high-speed elevators from foreign countries.

Therefore, there has been proposed an escalator in which the traveling speed is low and the traveling speed is high in the middle of getting on and off. That is, this type of escalator will be described with reference to FIG. 1.
Assuming that the vehicle is driven so as to get off at the high entry point O on the right side of FIG.
Are acceleration sections, and the acceleration section A sequentially increases the traveling speed. B travels at a high speed in a high speed section while maintaining the high speed. C is a deceleration section. In this deceleration section C, the traveling speed is sequentially reduced. On the return route side, C 'is an acceleration section, B' is a high-speed section, and A 'is a deceleration section.

Therefore, according to this example, the user gets on the escalator at a low traveling speed before the acceleration of the acceleration section A starts to be started, and gets off the escalator at a low traveling speed after the deceleration of the deceleration section C is completed. If the high-speed section B, which occupies a large part of the distance, is operated at a higher speed than in the past, the overall riding time can be reduced.

Conventionally, Japanese Patent Application Laid-Open No. 62-188562 has been proposed as a specific example of the escalator as described above.

In this conventional example, the skirt portion of each step is formed in an arcuate shape protruding outward, and a pair of fulcrums is provided on the back side of the step in the front-rear direction, and both fulcrums of the plurality of steps are sequentially linked. Further, the front fulcrum and the rear fulcrum are regulated by the respective guide rails so as to pass through a predetermined position, and the vicinity of the part where each step reverses the traveling direction, that is, the acceleration of FIG. In the outer portions further than the deceleration sections A, C, A ', C', each of the above-mentioned links is articulatedly bent at a predetermined angle, and in the inclined section, each link extends almost linearly, in other words In the entry / exit portion, each step has its upper surface tread horizontally continuous, and when each step becomes stepped in the inclined section, the tip of the rear step contacts the protruding upper and lower middle part of the skirt portion of the front step, So that the distance between steps is increased by this amount of protrusion There is something.

Therefore, if the traveling speed of the step at the beginning of the acceleration section A and the end of the deceleration section C, which is the entry section, is set to be the same as the speed of the conventional escalator, the speed is multiplied by the elongation of the step interval in the inclined section. Speed.

[Problems to be Solved by the Invention] The escalator of the above-mentioned conventional example has a normal escalator installation angle of 30%, which increases the interval between steps in an inclined section.
Since the specific link mechanism of the conventional example is slightly set at about 1.6 times or less, the rate of acceleration cannot be made 1.6 times or more. According to a method other than the dynamic link mechanism, it is possible to increase the number of steps by increasing the interval between steps.

However, if the interval between the steps is greatly increased in the inclined high-speed section, the conventional method of forming the skirt into an arcuate shape alone has a disadvantage that a gap is formed between the front and rear steps.

[Purpose] Accordingly, the present invention has been made in view of the above-described drawbacks. Even if the speed is increased by widening the interval between steps in the high-speed section B,
It is an object of the present invention to provide an escalator in which no gap is formed between the front and rear steps.

[Means for Solving the Problems] In order to solve the above-mentioned problems, in order to solve the above-mentioned problems, according to the configuration of the present invention, in order to solve the above problems, In the escalator, which is slower at the entry / exit portion of the person and faster at the middle of the slope, the upper end of the skirt plate is pivotally connected to the front and rear ends of the tread of the step, and the front and rear other ends of the tread are adjacent to the front and rear. A technical means is provided in which a locking claw for drawing a skirt plate of another step is provided.

[Operation] Therefore, the escalator of the present invention has a step spacing of FIG.
When the skirt plate spreads from the state of the P1 part to the state of the P2 part, the lower part of the skirt plate appears, and the free end side of the skirt plate is drawn to the step side by a locking claw of another step, so the skirt plate The angle of the plate with respect to the tread is changed so that the front and rear treads are always connected by the skirt plate.

Embodiment Next, an embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, reference numeral 10 connects the plurality of step links 11 endlessly,
A step link loop that can be rotated by being guided by the guide rail 3. The step link loop 10 includes a plurality of steps 2.
And a drive unit 4 for pivoting the step link loop 10 is provided as in the prior art.

The step link loop 10 and the guide rail 3 are not necessarily clear from the drawing because their overall views are omitted, but assuming that they run in the direction of arrow X in FIG. A plurality of step links 11 are disposed in parallel with the trajectory on which the tip travels, and
Are connected along the line, usually this step link loop 10
It is a matter of course that the guide rail 3 and the pair of guide rails 3 are arranged in parallel with a predetermined interval, as in the conventional case.

Each step 2 pivotally connected to the step link loops 10, 10 has a step plate as shown most clearly in FIG.
A bearing 22 is fixed to a lower end portion of the lower surface side of the shaft 21. A shaft 5 connecting the two stepped ring groups 10, 10 is inserted through the inside of the bearing 22, and is pivotally connected. Guide rollers 6, 6 are provided at both ends of the shaft 5, and the guide rollers 6, 6 are guided by the guide rail 3, so that the step link loops 10, 10 rotate at predetermined positions. It is.

At the rear end of the lower surface of the tread plate 21, a stay 23 for holding a horizontal holding guide roller 24 is provided. The horizontal holding guide roller 24 is provided at a position different from that of the guide rail 3. (Shown by a two-dot chain line in FIG. 1), the tread plate 21 is folded back (the right end portion in FIG. 1).
Except for one part, the one that always keeps the horizontal state is the same as the conventional escalator.

And the present invention, at the front and rear ends of the tread plate 21 of the step 2,
The upper end of the skirt plate 22 is pivotally connected, and the other end of the tread plate 21 is provided at the other end with a locking claw 26 for drawing the skirt plate 22 of another step 2 adjacent in the front-rear direction. Conventionally this skirt plate 22
Is integrally fixed to the tread plate 21, but in the present invention, the second
As clearly shown in the figure, the upper end of the skirt plate 22 is pivotally connected to one end in the front-rear direction (left edge in the figure) of the tread plate 21 by an appropriate hinge mechanism not shown in the figure. In FIG. 3, the locking claw 26 protrudes from the left end of the tread plate 21 in the same figure on both sides in a hook shape, and its tip is located on the back side of the skirt plate 22 of another step 2. The locking claw 26 protrudes from the central portion of the skirt plate 22, and is inserted into a vertical cut groove (not shown) provided in the skirt plate 22 at the tip thereof to be folded on the back side of the skirt plate 22. Is also good. Also, this locking claw 26
Cannot fully prevent a person from riding on the skirt plate 22, so that a sufficient resistance to the load is necessary. The illustrated locking claws 26, 26 are connected to the other front and rear ends of the tread plate 21 (FIG. 2). It has an arm shape protruding on the right side), and a skirt plate 22
A horizontal rail or a shaft located on the back side of the vehicle may be suspended.

Although the illustrated locking claws 26, 26 project on the same plane as the tread plate 21, they may, of course, protrude to a position at a certain distance from the tread plate 21. Further, in the embodiment, it is preferable that the tip of the skirt plate 22 is biased toward the front and rear ends of the tread plate by a spring not shown in the drawing.

The step link 11 is usually made of a single steel material, but in this embodiment, the step link 11
A link body 11a having a tooth portion 13a on the lower surface, and a tooth portion 13b
It is configured to be extendable and contractible with the telescopic link body 11b having That is, the portion shown in FIG.
In the illustrated example, in the illustrated example, one step link 11 is configured by a link main body 11a in which a pair of plates are combined in parallel and an extendable link body 11b that can be inserted into and removed from the link main body 11a. In FIG. 3, reference numeral 12 denotes a cut groove arranged in the longitudinal direction of the telescopic link body 11b.
Although the shaft 14 arranged at the tip of 11a is inserted, it is not limited to the illustrated example as long as the telescopic link body 11b can expand and contract, and the illustrated example is made to be able to expand and contract in a so-called two-stage type. However, it goes without saying that a telescopic link body (not shown) may be connected so as to be telescopic in three or more stages. Further, a hole 15a formed at the tip of the telescopic link body 11b in FIG. 3 is for link connection, and the hole 15a and the link body 11a of another step link 11 not shown in FIG. The shaft 5 for pivoting the step 2 described above is inserted into the opened hole 15b so that the adjacent step links 11, 11 and the step 2 are pivotally connected together. The teeth 13a, 13b are located at the overlapping position when the telescopic link body 11b is at the most contracted position, and the teeth 13a, 13b are not shifted at the most extended position at the both teeth 13a, 13b. Should be set to

The drive unit 4 includes a pair of sprockets 4.
A chain loop 40 is provided which is rotated by a drive source 41 wound on the chain loops 2 and 42. This drive unit is provided on the forward side of the chain loop 40 with teeth on the forward side of the step link loop.
13a and 13b mesh with each other, and the reciprocating side teeth 13a and 13b of the step link loop 40 mesh with the reversing side, and a pair is disposed near the upper portion and the lower portion of the minimum slope section. . In addition,
If the escalator is long, the required number of drive units 4 may be further provided in the middle. The reason why the drive unit 4 is disposed in a pair near the upper part and the lower part of the minimum slope section is that the step link is provided in the slope section.
11 is for applying tension to maintain the extended state, and a step link 1 is provided between the two drive units 4 and 4.
Numeral 1 is extended to the longest state as shown in FIG.

Note that the stair link 11 described above may be of a new kind, but in the present embodiment, the amount of expansion and contraction of the expandable link body 11b is regulated according to the rotational position of the step link loop 10. In other words, in a portion of the step link loop 10 that is separated from the two drive units 4, 4, the path (distance and passing position) of the step link loop 10 is the guide rail 3.
Therefore, if the step link 11 is made expandable and contractible, contraction and re-extension will be performed in a section deviating from the drive units 4 and 4. Is not guaranteed. Since there is a danger that this random expansion and contraction occurs at the part where the person gets on and off the escalator, the expansion and contraction are performed on average. As an example of a device for this purpose, in the illustrated example, one end of a lead screw 51 is connected to the tip of the telescopic link body 11b, and the other end of the lead screw 51 is screwed to a feed nut (not shown) housed in the gear box 52. ,
The feed nut is adapted to be rotated by the rotation of a telescopic transmission wheel 53 protruding from the gear box 52, and the telescopic electric wheel 53 is provided with a rolling guide rail (rack) 8a shown by a three-dot chain line in FIG. , 8b so as to rotate.

[Effects of the Invention] Since the escalator of the present invention is as described above, an escalator capable of performing a high-speed traveling twice or more in the middle without any gap even if the interval between the steps 2 is greatly widened in a high-speed section can be provided. It is.

Also, in the present invention, since the upper end of the skirt plate 22 is pivotally connected, the angle of the skirt plate 22 with the tread plate 21 is changed so that even if the gap between the steps 2 is large, the skirt plate 22 is short. The skirt plate 22 can be securely closed with the step 22, and when the interval between the steps 2 is reduced, the skirt plate 22 is rotated so as to be close to the back surface of the step plate, so that the escalator does not provide support for running at a folded portion or the like. It has an effect.

[Brief description of the drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a schematic side view of an escalator of the present invention, FIG. 2 is a perspective view of a main part, and FIG. 3 is a perspective view of a step link used in the present invention. It is. 2-step, 3-guide rail, 4-drive unit, 10-step link loop, 11-step link, 11a-link main body, 1
1b-telescopic link body, 40-chain loop, 41-drive source,
42 ~ sprocket

Claims (1)

(57) [Claims] 1. An escalator in which the running speed is slower at the entry / exit portion of the person and increased at the middle of the slope by changing the step interval in the middle, wherein the upper end of the skirt plate is pivotally connected to the front and rear ends of the stepping plate of the step. An escalator characterized in that a locking claw for attracting a skirt plate of another step adjacent in the front-rear direction is provided at the other front and rear ends of the tread plate.