JP2000177966A - Escalator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seemingly and substantially light escalator device, wherein the waist height dimension of a long frame body side face over upper and lower landing floors is reduced. SOLUTION: In an escalator device provided with a horizontal part 4A continuous from one landing floor 3 to the other landing floor, a long frame body 4 having an inclined part 4B connecting the horizontal part 4A, and a driving gear 5 for reversing a step 2 endlessly connected in the frame body 4, the reference pitch circle diameter of the driving gear 5 is set equal to or lower than a tread depth W, the lower side position 2AA of the supporting frame 2A of the step 2 is formed in a projected shape (supporting frame 2A itself is formed in a recessed shape) so as to be positioned nearer to the tread than to a center line connecting the center points of a front wheel spindle 2C and a rear wheel spindle, and the waist height dimension h1 of the frame body 4 side face is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator device, and more particularly to a structure for reducing the height of a frame at a step reverse portion.

[0002]

2. Description of the Related Art Generally, steps of an escalator device are as follows.
A structure in which a tread and a riser are supported by a substantially triangular support frame (for example, Japanese Utility Model Publication No. 7-47458), which moves between both floors with a sufficient space between the reciprocating paths (for example, Japanese Utility Model Publication No. 4-55016) No.).

[0003]

The escalator device having the above-described structure has no intention to reduce the height of the horizontal portion and the inclined portion of the main frame and to realize a lightweight and slim design expression as a whole. This overall weight reduction is effective in reducing the burden weight of building beams and reducing manufacturing costs. In addition, this slimming is achieved, for example, with a transparent (glazed) balustrade on the upper side of a transparent inclined section, and While there is a feeling of openness,
The lower part of the body of the frame, which is iron-plated and has a strong sense of dullness, is hated in terms of architectural design, and a solution (especially a reduction in the height of the body) has been desired. This reduction of the torso height is, if the former triangular step of the known example is the reverse trajectory of the latter known example,
There is a problem that the steps interfere with each other (collision), and the method of shortening the depth of the stepboard that is effective for reducing the reversal trajectory (height) is required by law in addition to the unstable element at the foot of the passenger. (The lower limit of the depth dimension is stipulated in the Western European standard).

An object of the present invention is to provide an escalator device that is light and light in appearance by reducing the height of the body portion on the side surface of the long main frame.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a long section having a horizontal section extending over one of the floors and the other, and an inclined section connecting the two horizontal sections. And a step formed of a tread, a riser, and a support frame, which are connected endlessly in the longitudinal direction of the frame, and a step which is housed in both horizontal portions and returns the step from the outward path or the return path. A drive gear for reversing from the forward gear to the forward path, a front wheel and a front wheel support shaft provided on a support frame on both sides of the step other than the drive gear, and a rail for guiding and supporting the rear wheel and the rear wheel support shaft. The reference pitch circle diameter of the drive gear is set to be equal to or less than the tread plate depth dimension of the step, and the lower side position of the support frame of the tread plate is taken from a center line connecting the center point of the front wheel support shaft and the center point of the rear wheel support shaft. Is also retracted to the side of the tread, so that the It was a structure to avoid negotiations. Further, a lower side position of the support frame is located at a retracted position protruding toward the tread side to avoid rotational interference when the steps are reversed.

[0006] The above-mentioned configuration is such that the cross-section can be avoided at the reversal portion thereof without substantially reducing the depth dimension of the step (step plate), and this cross-interference can be avoided even when the diameter of the drive gear is set. The height of the body on the side surface of the frame body can be reduced, thereby providing an escalator device that is lightweight and has a strong slimness.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a side view of a main part showing the vicinity of an upper floor, and FIG. 2 is a side view of a step 2 used alone in the escalator device 1 of FIG. The escalator device 1 has a horizontal portion 4A (which also has a horizontal portion on the lower side) and an inclined portion 4B which straddle between the one floor 3 on the upper side and the other floor (not shown) on the lower side. A long frame 4, a step 2 connected endlessly in the longitudinal direction of the frame 4, and having a step board 2 a, a riser 2 b, and a support frame 2 A; and a step 2 stored in the horizontal portion 4 A. Gear 5 (which also has a drive gear on the lower side) by rotating the main shaft 5A from the forward path M to the return path N or from the return path N to the forward path M, and supports the step 2 on both sides except for the drive gear 5. Rails 6 and 7 for guiding and supporting the front wheel 2B and the front wheel support shaft 2C, the rear wheel 2D and the rear wheel support shaft 2E provided on the frame 2A are provided. Further, the escalator device 1 transmits a driving force generated by a driving device 10 including a driving motor 8 and a speed reducer 9 to a driving gear 5 via a chain 11, and transfers a group of steps 2 along rails 6 and 7. It is a mechanism to move. Further, the driving machine 10 applies a driving force to the moving handrail 13 along the upper edge of the balustrade 12, and applies it to the step 2
And synchronized movement.

Here, the drive gear 5 for reversing the step 2 of the present invention has a reference pitch circle diameter (generally referred to as P, C, D) of the drive gear 5 smaller than the step depth W (FIG. 2) of the step 2. In addition, the lower side 2AA of the support frame 2A close to the front wheel 2B of the step 2 is positioned closer to the step board 2a than the center line Y connecting the center points of the front wheel support shaft 2C and the rear wheel support shaft 2E of the step 2. When the steps 2 are reversed, mutual interference (particularly, contact between the support frame 2A and the lower end 2bb of the riser plate 2b means a moment at which the gap between the steps 2 in FIG. ) Is avoided.
Further, the above-described mutual interference is avoided by setting the lower side position 2AA as a receding shape that is convex toward the side of the tread plate 2a by δ (the shape of the support frame 2A itself is concave) while avoiding the above-described mutual interference. In this case, a measure is taken to prevent bending damage due to stress concentration (avoidance of the presence of a weakened portion in the support frame 2A, which is the main bone of the steps 2). Here, the support frame 2 for δ
The concave shape of A can obtain an optimal shape in both strength and production by accurately drawing the reversal trajectory outlined in FIG. 1 and following the gentle reversal arc traced by the lower end 2bb of the preceding riser plate 2b. Can be.

The depth W of the tread is generally 400 mm.
In the case of reversing the tread 2, the step 2 has a reference pitch circle diameter of 1.5 W of the drive gear 5 and interferes with each other in the conventional shape without the lower side position 2AA, and the step 2 is 1.5 W or more (or the Interference is avoided at the front and back). The body height h1 of the side surface of the frame of the horizontal portion 4A is conventionally 1,000 mm.
According to the structure of the present invention, the height can be reduced by 25 to 45%. And the frame height h2 of the inclined portion 4B
Has a smaller size because there is no main shaft 5A present in the horizontal portion 4A. This effect of reducing the height can contribute to substantial weight reduction of the frame 4 and the like, and is effective in terms of economy and reduction of the load imposed on the building.

The reduction in the heights h1 and h2 of the body eliminates the feeling of dullness of the frame 4 which has been seen in the prior art. It provides a slim and light design effect. In particular, the reduction of the height dimension h1 of the horizontal portion 4A depends on the floor height H (FIG. 2), which is the height difference between the upper and lower floors 3 on which the escalator device 1 is suspended and the lower floor. 3 can also contribute to increasing the height of the ceiling below.

[0011]

As described above, according to the present invention, it is possible to provide an escalator device which can reduce the height of the body on the side surface of the long frame, and which is light in appearance and substantially lightweight.

[Brief description of the drawings]

FIG. 1 is a main part side view showing an embodiment of an escalator device according to the present invention.

FIG. 2 is a side view of a step unit used in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Escalator device, 2 ... Step, 2A ... Support frame, 2
B: front wheel, 2C: front wheel support shaft, 2D: rear wheel, 2E: rear wheel support shaft, 2AA: lower side position, 2a: tread plate, 2b: kick-up plate,
2bb: lower end, 3: getting on and off floor, 4: frame, 4A: horizontal part,
4B: inclined portion, 5: drive gear, 6, 7: rail, M: forward path, N: return path, δ: concave dimension.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhei Kojima 1070 Ma, Hitachinaka-shi, Ibaraki F-term in Mito Plant, Hitachi, Ltd. F-term (reference) 3F321 AA05 CA18 CA21 CB20

Claims (2)

[Claims] 1. A long frame having a horizontal portion connected to one floor and the other floor, a slope connecting the two horizontal portions, and an endless end in the longitudinal direction of the frame. A driving gear connected to and formed of a tread, a riser and a support frame, a driving gear housed in both horizontal portions to reverse the step from the forward path to the backward path or from the backward path to the forward path, and a driving gear other than the driving gear. A front wheel and a front wheel support shaft provided on a support frame on both sides of the step, and a rail for guiding and supporting the rear wheel and the rear wheel support shaft, wherein a reference pitch circle diameter of the drive gear is set to a step plate depth dimension of the step. Set below, and position the lower side of the support frame of the step on the side of the tread plate with respect to the center line connecting the center point of the front wheel support shaft and the center point of the rear wheel support shaft, the step at the time of step reversal The feature is that it is designed to avoid mutual rotational interference. That escalator apparatus. 2. The method according to claim 1, wherein a lower side of the support frame is
An escalator device, wherein the escalator device is located at a retracted position that is convex toward the tread side, and is configured to avoid rotational interference when the steps are reversed.