JPH10120351A - Escalator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the fitting work of each step to a footstep ring shaft and its confirmatory check by making a step top plate and a first bracket float over the footstep ring shaft and the lever by means of energizing support means in the case where a second bracket is not yet secured to the first bracket. SOLUTION: A step 5 is made to float over a footstep ring shaft 4, supporting it, by a compression spring (energizing support means) 25 in an unloaded state, namely, no load other than self-weight of a step top plate 7 and a bracket (first bracket) 6 is imposed. In this constitution, if a lever 9a of a sub-bracket (second bracket) 9 is put into contact with the footstep ring shaft 4, the sub- bracket 9 rotates and the compression spring 25 supports the step 5 on this footstep ring shaft 4, so that a defective step comes into a state of being floated from this footstep ring shaft 4. With this, if such a fact that there is no defective step floating is confirmed by visual observation from the outside, all the steps 5 are completely installable in each footstep ring shaft 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator device which can easily determine an attachment state in an operation of attaching an escalator step to a step wheel shaft.

[0002]

2. Description of the Related Art FIG. 8 is a side sectional view showing a general escalator device. In FIG. 8, a driving device 2 provided in a truss 1 of an escalator drives a loop-shaped step chain 3. In the step chain 3, step wheel shafts 4 are provided at equal intervals over the entire circumference between the turning points 3a and 3b, and each step wheel shaft 4 has an escalator step (hereinafter simply referred to as "step") 5 ( Only a part is shown in FIG. 8). The step wheel axle 4 guides the step 5 in the traveling direction (for example, the direction in which the ascending operation is performed in FIG. 8).

FIG. 9 is a side view showing step 5 in FIG. 8 in an enlarged manner. In FIG. 9, a step 5 includes a bracket 6 having a substantially sectorial side shape, a step upper plate 7 fixed on the bracket 6, and an arc-shaped portion of the bracket 6, and a width direction of the step 5. (A direction perpendicular to the paper surface in FIG. 9).

[0004] A sub-bracket 9 is pivotally supported by a shaft 10 near a key point (intersection of two sides other than the fan-shaped arc) of the bracket 6, and the sub-bracket 9 is located above the step wheel shaft 4 from the shaft 10. The curved and extended lever 9a and the step wheel shaft 4
And a semicircular engaging portion 9b extending along the lower surface of the main body. The engaging portion 9b is arranged to face the engaging portion 6a of the bracket 6.

On the other hand, a pair of roller shafts 11 is provided near the lower end of the riser 8 of the bracket 6, and a guide roller 12 is rotatably supported on the roller shaft 11. As a result, the guide roller 12 is connected to the guide rail 13 provided along the vicinity of the step chain 3.
, And smoothly controls the operation of Step 5.

A bush 14 is provided on the outer periphery of the step wheel shaft 4. A hole 15 is provided in the step upper plate 7 so that a tool 16 can be inserted therein. Each of the engaging portions 6a and 9b is detachably fixed by a bolt 17 and a pop nut 18 through a screw hole 19.

FIG. 10 is an enlarged side view showing a main part of the bracket 6 in FIG. 9, and shows a state in which the engaging portions 6a and 9b are separated. In the escalator device configured as shown in FIGS. 8 to 10, when the bracket 6 is supported on the step wheel shaft 4, the lever 9a is pressed by the step wheel shaft 4 from the state shown in FIG. Is brought into contact with the semicircular engaging portion 6 a of the bracket 6.

As a result, the sub-bracket 9 rotates to the position where it is fixed to the bracket 6 in conjunction with the lever 9a, and the semicircular engaging portions 6a and 9b are joined to each other. Therefore, the step wheel shaft 4 can be pivotally engaged with the sub-bracket 9 via the bush 14.

Subsequently, a bolt 17 having a hexagonal hole is fastened to a pop nut 18 provided at the other end of the sub-bracket 9 by using a tool 16 such as a hexagonal wrench through a hole 15 provided in the step upper plate 7. . As a result, the sub-bracket 9 is completely fixed to the bracket 6, and as shown in FIG.
4 can be supported.

However, if the bolt 17 is forgotten to be tightened or if the bolt 17 is not properly tightened, the sub-bracket 9 is not completely attached to the bracket 6 in the defective step 5a.
(See FIG. 8). In this case, when the escalator device is driven, when the defective step 5a approaches the turning points 3a, 3b of the step chain 3, the defective step 5a falls off the step wheel shaft 4, and
There is a possibility that not only the defective step 5a but also the other steps 5 and the step wheel shaft 4 may be damaged.

For this reason, after the operation of attaching the steps 5 to the step wheel axle 4, it is necessary to check whether all the steps 5 are completely attached to the step wheel axle 4.

However, in the operation of fixing the sub-bracket 9 to the bracket 6, since the screw hole 19 through which the bolt 17 passes is hidden under the step upper plate 7, it is determined whether the bolt 17 is tightened to the pop nut 18. The decision must be made visually while driving the escalator from the machine room above and below the escalator.

[0013]

As described above, the conventional escalator apparatus has a problem in that the confirmation of the mounting in the step 5 is performed visually, so that the confirmation is troublesome and the work becomes difficult. . The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide an escalator device that can easily be attached to a step wheel axle and its confirmation is easy, and saves much labor of the attaching operation. I do.

[0014]

An escalator device according to a first aspect of the present invention includes a step and a step wheel axle for guiding the step in the traveling direction, and each step includes a step upper plate and a step upper plate. A first bracket having a side fan shape to be supported, and a second bracket having one end rotatably supported by the first bracket and the other end detachably fixed to a main part of the first bracket. An engaging portion for pivotally supporting the first and second brackets on the step wheel shaft, and a lever integrally fixed to the second bracket, and the second step is performed by pushing the step wheel shaft on the lever. An escalator device configured to guide the first bracket to a fixed position with respect to the first bracket, wherein biasing support means is provided between the lever and the first bracket, and the biasing support means includes a second bracket. There when not fixed to the first bracket, with respect to the step axle and lever, characterized in that floating the steps top and the first bracket.

According to a second aspect of the present invention, in the escalator device according to the first aspect, the biasing support means has a compression spring having one end contacting the lever and the other end fixed to the first bracket. It is comprised by.

The escalator device according to a third aspect of the present invention is the escalator device according to the first aspect, wherein the urging support means is a first escalator.
And a pair of magnets provided on opposing surfaces of the bracket and the lever, respectively, and the opposing surfaces of the pair of magnets have the same polarity.

Further, in the escalator device according to a fourth aspect of the present invention, in the first aspect, the biasing support means is a torsion spring provided on an outer periphery of a shaft for pivotally supporting the second bracket to the first bracket. The torsion spring has one end fixed to the first bracket and the other end fixed to the lever.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a step 5 according to the first embodiment of the present invention, and FIGS. 2 and 3 are side views showing enlarged main parts in FIG. Is similar to

Step 5 consists of a bracket 6 and a lever 9a.
And a biasing support means, that is, a compression spring 25.
One end of the compression spring 25 is in contact with the lever 9a, and the other end is fixed to a mount 24 formed on the bracket 6.
One end is a free end 25a.

The upper surface 9c of the lever 9a is provided with a receiving base 26 for receiving the free end 25a of the compression spring 25. In the operation step of attaching the bracket 6 to the step wheel shaft 4, the compression spring 25 and the lever 9a, the free end 25a is in a positional relationship in which the free end 25a comes into contact with the cradle 26.

In a no-load state (a state in which no load is applied to the compression spring 25 other than its own weight such as the step upper plate 7 and the bracket 6), at least step 5 is performed on the step wheel shaft 4. It has a biasing force that can be lifted and supported. That is, step 5 is performed by the compression spring 25
By the restoring force and the total length of the step wheel, it is possible to float on the step wheel shaft 4.

FIG. 4 is a side sectional view showing the entire structure of the first embodiment of the present invention.
It is similar to the above. In FIG. 4, the other structure is the same as the conventional example except that the attitude of the defective step 5a is different. That is, the driving device 2 is provided at both ends of the step wheel shaft 4.
And a pair of roller shafts 11 provided near the lower end of the riser 8 of the bracket 6 are provided with guide rollers 12 that roll along guide rails 13. ing.

Therefore, if all of the steps 5 connected endlessly around the entire circumference of the loop-shaped step chain 3 are attached, the step chain 3 can be driven through the step chain 3 to serve as an escalator device. ing.

Next, with reference to FIG. 2 (state before mounting) and FIG. 3 (state after mounting), an operation of mounting the step 5 to the step wheel shaft 4 in the present invention will be described. First, as shown in FIG.
When a is brought into contact with the step wheel shaft 4, the sub bracket 9 rotates as shown in FIG. Thereby, the compression spring 25 provided on the bracket 6 is engaged with the receiving base 26 provided on the upper surface 9c of the lever 9a, and the lever 9a receives the restoring force of the spring 25.

As a result, since the compression spring 25 supports the step 5 on the step wheel shaft 4, the defective step 5a before the bracket 6 and the sub-bracket 9 are fixed by the bolt 17 and the pop nut 18 is shown in FIG. As a result, the vehicle is floated from the step wheel shaft 4. Thereby, the defective step 5a before mounting can be easily confirmed.

In order to attach the defective step 5a before the attachment to the step wheel axle 4, the load on the step upper plate 7 is set to a certain load or more (for example, the step 7 is stepped on by an operator). A force greater than the restoring force of the compression spring 25 may be applied in a direction in which the step upper plate 7 is sunk (a direction in which the compression spring 25 contracts). In this state, by linking the sub-bracket 9 to the lever 9 a pressed by the step wheel shaft 4, the sub-bracket 9 is rotated to a fixed position where the sub-bracket 9 is fixed to the bracket 21 while compressing the compression spring 25.

Therefore, the semicircular engaging portion 6 of the bracket 6
a and the engaging portion 9b of the sub bracket 9 are joined,
The bracket 6 can be pivotally engaged with the step wheel shaft 4 via the bush 14. Then, while stepping on the step upper plate 7 with a foot, the operator pops the bolt 17 by using a tool 16 through a hole 15 provided in the step upper plate 7 in the same manner as in the related art as shown in FIG. If the nut 6 is tightened, the bracket 6 and the sub-bracket 9 can be completely fixed, so that the bracket 6 can support the step wheel shaft 4 via the bush 14.

As described above, when attaching the step 5 to the step wheel axle 4, if the escalator device is visually observed from the outside to confirm that there is no floating step 5a,
All the steps 5 connected endlessly can be completely attached to the respective step wheel axle 4. That is, if the step 5 having the structure shown in FIGS. 1 to 3 is attached to the step wheel axle 4 in the above procedure, the defective step 5a that is not completely attached to the step wheel axle 4
Since the step 5 is seen floating compared to the step 5 which is completely mounted on the step wheel axle, it is possible to easily visually check for forgetting to tighten the bolt 17 or improper tightening in the step of mounting the step 5 on the step wheel shaft 4.

Embodiment 2 Although the compression spring 25 is used as the urging support means in the first embodiment, a pair of magnets having the same polarity may be used. FIG. 5 is a side view showing a main part of Embodiment 2 of the present invention using a magnet.
4 to 7, 9, 10, 14, 15, 17 to 19 and 2
4 is the same as described above.

In this case, a pair of magnets 33 having opposing surfaces having the same polarity are provided on each of the mounting base 24 and the upper surface 9c of the lever 9a. A pair of magnets 33
Has a magnetic force sufficient to generate a repulsive force capable of floating and supporting the step 5 on the step wheel shaft 4. When performing the work of attaching the step 5 to the step wheel shaft 4, the above-described compression spring 25
Is performed by the pair of magnets 33, and the same operation and effect can be obtained by the completely same principle as in the first embodiment. That is, in the work of attaching the step 5 to the step wheel shaft 4, forgetting to tighten the bolt 17 or insufficient tightening can be easily confirmed visually.

Embodiment 3 In the second embodiment, the magnet 33 is used as the urging support means, but a torsion spring may be used. 6 and 7 are a side view and a sectional view showing a main part of the third embodiment of the present invention using a torsion spring, and FIG. 7 is a sectional view taken along line aa of FIG.

In this case, step 5 is torsion spring 38
The torsion spring 38 includes a shaft 10 that supports the lever 9 a of the sub-bracket 9 to the bracket 6.
Is provided on the outer periphery. One end of the torsion spring 38 is fixed to the bracket 6, and the other end is fixed to the lever 9a. The torsion spring 38 has a spring constant capable of exhibiting a restoring force sufficient to support the step 5 on the step wheel shaft 4 in a floating manner.

In FIGS. 6 and 7, when the step 5 is mounted on the step wheel shaft 4, the above-mentioned compression spring 2 is used.
Since the torsion spring 38 plays the role of the magnet 5 or the magnet 33, the same operation and effect can be obtained by the completely same principle as in the first and second embodiments. That is,
In the work of attaching the step 5 to the step wheel shaft 4, forgetting to tighten the bolt 17 or insufficient tightening can be easily confirmed visually.

[0034]

As described above, according to the first aspect of the present invention, there are provided a step, a step wheel shaft for guiding the step in the traveling direction, and each step supports the step upper plate and the step upper plate. A first bracket having a side fan shape, and a second bracket having one end rotatably supported by the first bracket and the other end detachably fixed to a main part of the first bracket; An engaging portion for pivotally supporting the first and second brackets on the step wheel shaft and a lever integrally fixed to the second bracket are provided, and the second step is performed by pushing the step wheel shaft on the lever. In an escalator device configured to guide a bracket to a fixed position with respect to a first bracket, an urging support unit is provided between the lever and the first bracket, and the urging support unit is configured such that the second bracket has a second bracket. 1 bracket If not fixed, relative to the step axle and lever, so it is characterized by floating the steps top and the first bracket, in the work of attaching the escalator steps in the step axle, the first
There is an effect that an escalator device which can easily confirm visually whether or not the second bracket and the second bracket are completely fixed can be obtained.

According to a second aspect of the present invention, in the first aspect, the biasing support means comprises a compression spring having one end abutting on the lever and the other end fixed to the first bracket. Therefore, there is an effect that an escalator device capable of supporting the escalator step on the step wheel shaft can be obtained with a simple structure.

According to a third aspect of the present invention, in the first aspect, the biasing support means is constituted by a pair of magnets provided on the opposing surfaces of the first bracket and the lever, respectively. Since the polarities of the opposing surfaces are equal to each other, there is an effect that an escalator device capable of supporting the escalator step on the step wheel shaft can be obtained with a simple structure.

According to a fourth aspect of the present invention, in the first aspect, a torsion spring is provided on an outer periphery of a shaft that supports the second bracket on the first bracket. Since one end is fixed to the first bracket and the other end is fixed to the lever,
With a simple structure, there is an effect that an escalator device capable of supporting the escalator step on the step wheel shaft is obtained.

[Brief description of the drawings]

FIG. 1 is a side view showing Embodiment 1 of the present invention.

FIG. 2 is an enlarged side view of a main part showing a work situation of attaching to a step wheel shaft according to Embodiment 1 of the present invention.

FIG. 3 is an enlarged side view of a main part showing an operation state of attaching to the step wheel axle according to the first embodiment of the present invention.

FIG. 4 is a side sectional view showing the entire configuration of the first embodiment of the present invention.

FIG. 5 is a side view showing a main part of a second embodiment of the present invention.

FIG. 6 is a side view showing a third embodiment of the present invention.

FIG. 7 is a side sectional view taken along line aa in FIG.

FIG. 8 is a side sectional view showing a conventional escalator device.

FIG. 9 is a side view showing an operation of attaching a conventional escalator step to a step wheel shaft.

FIG. 10 is an enlarged side view showing a main part of FIG. 9;

[Explanation of symbols]

4 Step wheel axle, 5 step, 6 bracket (first bracket), 7 step upper plate, 9 sub-bracket (second bracket), 9a lever, 25 compression spring (biasing support means), 33 magnet (biasing support) Means), 38
Torsion spring (biasing support means).

Claims (4)

[Claims] 1. A method comprising: a plurality of steps moving along a truss; and a step wheel axle for guiding the steps in a traveling direction, wherein each of the steps includes: the step upper plate; A sector-shaped first bracket; a second bracket having one end rotatably supported by the first bracket and the other end detachably fixed to a main part of the first bracket; An engaging portion for pivotally supporting the first and second brackets on the step wheel shaft; and a lever integrally fixed to the second bracket, for pushing the step wheel shaft on the lever. An escalator device configured to guide the second bracket to a fixed position with respect to the first bracket, whereby biasing support means is provided between the lever and the first bracket. Wherein the urging support means comprises a second bracket mounted on the first bracket.
An escalator device, wherein the step upper plate and the first bracket float on the step wheel shaft and the lever when not fixed to the bracket. 2. The escalator device according to claim 1, wherein said biasing support means comprises a compression spring having one end abutting on said lever and the other end fixed to said first bracket. 3. The urging support means is constituted by a pair of magnets provided respectively on opposing surfaces of the first bracket and the lever, and the opposing surfaces of the pair of magnets have the same polarity. 2. The escalator device according to 1. 4. The urging and supporting means is constituted by a torsion spring provided on an outer periphery of a shaft which supports the second bracket on the first bracket, and one end of the torsion spring is provided by the first torsion spring. The escalator device according to claim 1, wherein the escalator device is fixed to the bracket and the other end is fixed to the lever.