JP3125867B2 - Escalator device - Google Patents

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 be used not only by ordinary passengers but also by wheelchairs and wheelbarrows.

[0002]

2. Description of the Related Art As an escalator device capable of carrying a passenger in addition to a wheelchair, a real escalator 1-982
There is an escalator device as described in JP-A-8.

[0003]

The escalator device having the above-mentioned structure has a special trolley for holding a plurality of steps horizontally and a dedicated rail for running the trolley. Therefore, the existing escalator device cannot be improved so that a wheelchair can be transported.

[0004] An object of the present invention is to provide an escalator device capable of transporting a wheelchair without changing the conventional installation dimensions, and of safely transporting a large wheelchair or a wheelbarrow with a simple configuration. Is to do.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for carrying out a wheelchair transport operation, comprising the steps of:
Footstep, middle footstep, the <br/> treadle the middle footstep and lower step of the lower step, is raised to the same height as the step plate of the upper stage footstep Roll
Forming a mounting surface, the escalator apparatus configured to run an inclined portion in this state, the lower step
And a base, which is supported on the base via a first link mechanism.
And a second link mechanism on this intermediate base.
The movable tread supported by the intermediary was provided.

As described above, since the step board is raised to form the wheelchair mounting surface, it is not necessary to increase the installation size of the escalator apparatus as compared with the prior art, and the rising step board is always kept horizontal. Can do
Thus, the wheelchair and the wheelbarrow can be transported stably and safely.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 2, the escalator device according to the present invention is a normal step that is connected endlessly between a lower entrance 1 and an upper entrance 2 provided on a lower floor and an upper floor of a building and rotates. 3 are arranged, and this step 3
A balustrade 4 is erected along both sides in the moving direction of the vehicle, and a handrail 5 that rotates in the same direction as the steps 3 is guided to the balustrade 4. Further, among the plurality of steps 3, three adjacent steps are defined as a specific step group 6. The upper step 7 of the specific step group 6 is used as a reference step, and the step boards of the middle step 8 and the lower step 9 located below the specific step group 6 can be raised by the inclined portion of the escalator device. A horizontal wheelchair mounting surface is formed so that the wheelchair 10 is mounted.

The specific structure and operation of the specific step group 6 will be described with reference to FIGS. The upper step 7, the middle step 8, and the lower step 9 of the specific step group 6 include a fixed step board 7F, and step boards 8F and 9F that move in the vertical direction, and are fixed to a frame as a fixing member of the escalator. Front wheel 11A and rear wheel 1 rolling between 12A and 12B
1B. The treads 8F and 9F are connected to the front wheel 1
It is supported via parallel links 14 and 15 on bases 12 and 13 having 1A and rear wheel 11B. In addition, lower step 9
The parallel link 15 has a two-stage structure of a first parallel link 15A constituting a first link mechanism and a second parallel link 15B constituting a second link mechanism with the intermediate base 13S interposed therebetween. . Then, the parallel link 14 is used as a third link mechanism. Each of these link mechanisms has two links
Connected to each other through a rotatable node
Water that connects between the nodes of the two sets of links
It consists of flat links. First parallel link 15
A lower end of the base 13 at the same interval as the nodal interval
It is rotatably connected to a fulcrum, and the upper end is the same as the node spacing.
It is rotatable about the fulcrum on the upper side of the intermediate base 13S at the same interval.
It is connected to. The upper end of the second parallel link 15B is
A fulcrum on the back side of the tread 9F at the same interval as the node interval
And the lower end thereof is connected to the first parallel link 15.
At the same interval as the node interval
It is rotatably connected to a fulcrum on the lower side of the base 13S.
You. The lower end of the third parallel link 14 is the same as the node interval.
Pivotally connected to the fulcrum of the base 12 at the same intervals.
The end is on the back side of the tread 8F at the same interval as the node interval.
Are pivotally connected to the fulcrum. Furthermore, each tread 7
Between F, 8F and 9F, there are connecting mechanisms 16 and 17 for connecting the wheelchair when transporting, and a connecting mechanism 18 for connecting the base 12 of the middle step 8 and the intermediate base 13S of the lower step 9 is provided.

In addition, the lower step 9 includes a riser 19A attached to the base 13, a riser 19B attached to the intermediate base 13S, and a riser 19C attached to the tread 9F.
There is a triple configuration.

On the other hand, the connecting mechanisms 16, 17, 18
It is configured as shown in FIGS. That is, when the steps 7 to 9 are in the horizontal position, the rack 3 shown in FIGS.
3. Power is obtained from 3 and the fixing hooks 20A, 20B, 21
A, 21B, 22A, 22B rotate and each step 7,
The vertical and vertical movements of 8, 9 are fixed.

When each of the steps 7, 8, 9 is in a horizontal position above and below the escalator, the vertical load from the wheelchair 10 is applied to the fixing hooks 20A, 20B, 21A, 21.
B, 22A, and 22B do not act, and the operation of hooking the fixing hook can be smoothly and easily performed. Wheelchair 1
A parallel link 14, which bears a moment due to a load of 0,
No load is applied to 15 and it is in a free state.
Load from the wheelchair 10 is only such as downward load F ₁ to F ₆ directly to the front wheels 11A and rear wheels 11B of the steps 7, 8 and 9. The fixing hooks 20A and 20B are
F is rotatably supported on the lower surface of F by shafts S1 and S2, and by rotating, engages so as to embrace nose 23A, 23B provided on adjacent tread 8F. The fixing hooks 21A and 21B are provided on the lower surface of the tread 5F with the shafts S3 and 21B.
It is rotatably supported by S4, and engages by rotating so as to embrace the nose 24A, 24B provided on the adjacent tread 9F.

Further, the fixing hooks 22A and 22B are
The intermediate base 13 of the adjacent step 9 is supported on the base 12 of the step 8 by the shafts S5 and S6 and is rotated.
Engage with nose 25A, 25B provided on S. The fixing hooks 20A, 20B, 21A, 21B, 22A, 22
The tip of B is each nose 23A, 23B, 24A, 24
B, 25A, and 25B are inserted into and engaged with the roller 26 installed in the vicinity thereof, so that there is no play after the engagement.
In addition, by providing the stopper 27 at a position corresponding to the tip of the inserted fixing hook, the engagement state can be maintained constant.

The turning mechanism of the fixing hook is
Each of the pinions 30 to 32 is guided to a pinion 30 to 32 located below each step 7 to 9 via a power transmission gear group 28, 29A, 29B.
A and 12B are engaged with the rack 33 arranged side by side. The power transmission gear groups 28, 29A, 29B and the pinions 30 to 32 constitute a power transmission mechanism, and the rack 33
Constitute a power supply mechanism. The rack 33 rises only when the wheelchair is transported, engages with the pinions 30 to 32, and is arranged on the upper and lower horizontal portions of the escalator. still,
Instead of the rack 33, the electric motors 34A to 34A are provided in the steps 7,8.
C may be provided for driving.

FIG. 6 shows the mounted state of the wheelchair 10 when the steps 7 to 9 are in a horizontal state at the entrance and exit. In this state, the fixing hooks 20A to 2A of the connecting mechanism have already been mounted.
1B is straddled and engaged with adjacent steps 7 and 8, 8 and 9. At this time, the loads W ₁ and W ₂ by the wheelchair 10 are:
Since it acts directly on the front wheel 11A and the rear wheel 11B, it does not act on each of the fixing hooks. The fixing hook 2 is a coupling mechanism for the treads 8F and 9F, and also serves as an elevating mechanism for lifting the treads 8F and 9F following the treads 7F at the inclined portions.
0A to 21B indicate that each of the steps 7F to 9F and the guide rails 12A and 12F are provided when the steps 7 to 9 are in a horizontal state at the entrance.
B.

Next, when the specific step group on which the wheelchair 10 is mounted moves to the inclined portion of the escalator, the upper step 7 of the specific step group is fixed to the fixing hook 2 as shown in FIGS.
Under load W _1, W ₂ from the wheelchair 10 in 0A～22B, moment by the load parallel link 14, 15
The load is distributed to the front wheel 11A and the rear wheel 11B of each of the steps 7 to 9, and the load on the front wheel 11A and the rear wheel 11B is reduced to the allowable load. More specifically, when a large and heavy wheelchair such as an electric wheelchair is mounted, a large load of the wheelchair 10 is applied to the lower step 9. Therefore, the upper step 7 and the tread 8F of the middle step 8 are engaged and connected by fixing hooks 20A and 20B, and the tread 8F and the tread 9F of the lower step 9 are fixed by hooks 21A and 21B and the base 12 And the intermediate base 13S are engaged and connected by fixing hooks 22A and 22B. In this state, when the upper step 7 moves to the escalator inclined portion and is displaced upward, the fixing hooks 20 </ b> A to 22 </ b>
Steps 8F, 9F connected to the upper step 7 by B
Is lifted. At this time, the treads 8F, 9F are inclined with the fixing hooks 20A, 20B and 21A, 21B as fulcrums, but this is prevented by providing the parallel links 14, 15. That is, when a load W ₁ wheelchair 10 acts on the step board 9F of lower step 9, the moment M ₁ of W ₁ × l ₁ is generated. Since the moment M ₁ is transmitted to the parallel link 15, the moment M ₁ is distributed to the front wheel 11 A and the rear wheel 11 B of the lower step 9. On the other hand, the load W ₁ is fixing hooks 21A, because it is received by 21B, the load W ₁ is applied as a load W ₃ in the coupling position. Further, the load acting on the step board 8F is load W by the load W ₃ and wheelchair 10
₂ , and when these loads W ₂ and W ₃ are applied, W ₃ ×
A moment M _{2 of} l ₂ and W ₂ × l ₄ is generated, and the moment M ₂ is distributed to the front wheel 11A and the rear wheel 11B of the middle step 8. On the other hand, the loads W ₂ , W ₃ are
It is received as a load W ₄ at 20B. Then, the upper step 7, the moment M ₃ of the load W ₄ with its own weight and W ₄ × l ₃
Works. At this time, loads F _{1 to} F ₆ (FIG. 7) are applied to the front wheels 11A and the rear wheels 11B of the steps 7 to 8 in the directions of the arrows.

As described above, the treads 8F and 9F are connected to the upper step 7 and rise.
It rises while displacing to the lower stage side with respect to 2,13. When the treads 8F and 9F descend, they descend while displacing to the upper stage. When the treads 8F, 9F move up and down in this way, they move in the front-rear direction.
Are displaced so as not to hinder the movement of the treads 8F, 9F in the front-rear direction, and also keep the treads 8F, 9F horizontal during the movement in the front-rear direction.

Next, the operation of the escalator configured as described above will be described. When attempting to mount a wheelchair on an escalator that is performing normal driving, a clerk is called or an operation button provided near the entrance is switched to switch the escalator to a wheelchair transport operation. When the mode is switched to the wheelchair transport operation, the specific step group 6 stops before the lower entrance 1 as shown in FIGS. At this time, the treads 7F, 8F, 9 of the upper step 7, the middle step 8, and the lower step 9
F is lined up in a horizontal state, and the wheelchair 10 is put on it. Further, upon detecting that the specific step group 6 has stopped at the fixed position, the rack 33 shown in FIGS. 4 and 5 is raised, and engages with the pinions 30 to 32 built in the steps 7 and 8.

Next, when the operation button of the escalator is pressed and driven, the pinions 30 through
32 rotates with the movement of the steps 7, 8 and the rotation is transmitted to the fixing hooks 20A to 22B via the power transmission gears 28, 29A, 29B to rotate, and the adjacent step plates 8F, 9F and the intermediate Engage and connect with nose 23A-25B of base 13S. Further, when the steps 7 to 9 are moved and enter the inclined portion of the escalator, the upper steps 7 move upward. At this time, the treads 8F and 9F of the middle step 8 and the lower step 9 connected to the upper step 7 are simultaneously lifted upward, and the parallel links 14 and 15 as means for suppressing the inclination of the steps 8F and 9F are extended. . Then, the inclined portion is further moved while maintaining the horizontal position (FIGS. 1, 2, 7, and 8).

In this inclined portion, the tread 9 of the lower step 9
F rises by two steps, the tread 8F of the suspended step 8 rises by one step and forms a wheelchair mounting surface with the tread 7F of the upper step 7,
This wheelchair mounting surface has a step of one step between the normal step 3 adjacent to the upper step and a step of three steps between the normal step 3 adjacent to the lower step. ,
Particularly, although a large gap is originally formed between the tread 9F and the base 13, in the case of the present embodiment, the riser 19 having a triple structure is used.
Since A to 19C are provided, there is no large gap.

When the specific step group 6 reaches the horizontal portion of the upper entrance 2, the steps 7 to 9 are at the same level, so that the parallel links 14 and 15 are contracted and a step is generated in each of the steps 7 F to 9 F. There is no. When the specific step group 6 has stopped at a fixed position, the wheelchair 10 is moved and lowered to the upper entrance 2. After the specific step group 6 stops at the fixed position, the rack is raised and the pinion 3 is moved in the same manner as the lower entrance 1 side.
0 to 32, and the escalator is returned to normal operation and moved, so that the fixing hooks 20A to 22B are engaged.
Rotates to break the connection. The raising of the rack may be performed simultaneously with the raising of the rack 33 on the lower entrance side.
After the connection is broken, the rack is lowered so that there is no bite with the pinions 30-32 during normal operation.

By the way, each of the steps 7 to 9 has a step board 8F,
Many moving parts are built in to raise and lower 9F. And, among the movable parts, for example, the fixing hook 20A
In the case of ~ 22B, if they do not move to the home position, the treads 8F and 9F are displaced when the wheelchair is mounted, and excessive stress is concentrated. Therefore, in order to detect that each fixing hook has been displaced to a fixed position, for example, an operation confirmation body interlocked with each fixing hook is provided, and for example, an escalator frame corresponding to the displaced position of this operation confirmation body By providing a detector, it is desirable to check the reliable operation and perform safe operation.

Further, the steps 8, 9 having movable steps 8F, 9F are turned upside down on the return side of the escalator.
It is feared that it will break away from the base 13 and hit the bottom of the frame and be damaged. Therefore, during normal operation, the tread plate 8
It is better to provide a holding mechanism that holds F and 9F in a fixed position and releases the holding from the fixed position during a wheelchair transport operation.

As described above, according to the above embodiment, the upper steps 7 of the specific step group 6 remain as the two steps 8,9.
By providing a connecting mechanism and a link mechanism for connecting the respective treads 8F, 9F, the three treads 7F, 8F, 9F can be held horizontally even on the inclined portion, so that the structure of the conventional escalator is not changed. Large wheelchairs can be transported.

[0024]

[0025]

[0026]

Further, since the steps 37 and 38 are independent of the steps 36, safe operation can be performed by incorporating the connecting mechanism of the above embodiment. The embodiment shown in FIG. 9 to FIG. 11 has the bogie 46 projecting from the tread 38F of the lower step 38, so that the tread 3 of the lower step 38 is provided.
The entire depth of the 8F cannot be used for the wheelchair mounting surface, and the treads 36 of the two adjacent steps 36 and 37 are not available.
Tread plate 38 of lower step 38 adjacent to the lower steps of F and 37F
The wheelchair mounting surface is secured with a part of F.

[0028]

As described above, according to the present invention, it is possible to obtain an escalator device capable of safely transporting a large wheelchair or a wheelbarrow with a simple configuration without changing the conventional installation dimensions.

[Brief description of the drawings]

FIG. 1 is a partially broken side view showing a main part of an operation state of an escalator device according to the present invention.

FIG. 2 is a schematic side view showing the entire operation state of the escalator device according to the present invention.

FIG. 3 is a perspective view showing a coupling mechanism of a specific step group of the escalator device according to the present invention.

FIG. 4 is a plan view showing a power transmission mechanism of a specific step group of the escalator device according to the present invention.

FIG. 5 is a side view showing a power transmission mechanism of a specific step group of the escalator device according to the present invention.

FIG. 6 is a side view showing a state in which a wheelchair is mounted on a specific step group of the escalator device according to the present invention.

FIG. 7 is a perspective view showing each mechanism in an inclined portion of a specific step group of the escalator device according to the present invention.

FIG. 8 is a perspective view showing a state in which a wheelchair is mounted on an inclined portion of a specific step group of the escalator device according to the present invention.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kazutoshi Takeda 1070 Ma, Katsuta-shi, Ibaraki Pref. Hitachi, Ltd. Mito Factory (72) Inventor Toshiyuki Tamatsu 832 Horiguchi, Katsuta-shi, Ibaraki 2 Hitachi Mito Engineering Stock In-house (56) References JP-A-63-235291 (JP, A) JP-A-4-317990 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 21/00- 31/02

Claims (4)

(57) [Claims] 1. A wheelchair mounting surface is formed by raising a middle step and a lower step of the adjacent three steps of the upper step, the middle step and the lower step to the same height as the step of the upper step. An escalator device configured to run on an inclined portion, and wherein the wheelchair mounting surface is configured to have a level difference between the inclined portion when the wheelchair is mounted and a tread plate of a normal step adjacent to the upper and lower steps. The lower step has a base, an intermediate base supported on the base via a first link mechanism, and a movable step board supported on the intermediate base via a second link mechanism. An escalator device, characterized in that: 2. The wheelchair mounting surface is formed by raising the middle and lower steps of the three adjacent upper steps, middle steps and lower steps to the same height as the upper steps. An escalator configured to run on an inclined portion of a guide rail, and wherein the wheelchair mounting surface has a step between the inclined portion and a tread plate of a normal step adjacent to the upper and lower steps when the wheelchair is mounted. In the device, the lower step includes a base traveling on the guide rail, an intermediate base supported on the base via a first link mechanism, and a second link mechanism on the intermediate base. A movable step board supported on the guide rail, and the middle step has a movable platform supported on the guide rail via a third link mechanism. During the wheelchair transport operation Escalator apparatus characterized in that a coupling mechanism coupling the base of the steps and the intermediate base of the lower step. 3. The wheelchair mounting surface is formed by raising the middle and lower steps of the three adjacent upper steps, middle steps and lower steps to the same height as the upper steps. An escalator configured to run on an inclined portion of a guide rail, and wherein the wheelchair mounting surface has a step between the inclined portion and a tread plate of a normal step adjacent to the upper and lower steps when the wheelchair is mounted. In the apparatus, the lower step has a base that runs on the guide rail, and a movable step plate that is supported on the base via a first parallel link mechanism and a second parallel link mechanism, and The intermediate step is a base that runs on the guide rail,
The base has a movable tread plate supported via a third parallel link mechanism, and at least the first and third parallel link mechanisms are configured to have the same fulcrum spacing and node spacing. An escalator device characterized by the following. 4. Each of the parallel link mechanisms comprises two sets of links in which two links are connected in a "-" shape via a node, and a horizontal link connecting the nodes of the two sets of links. The escalator device according to claim 3 , wherein the escalator device is configured.