JPH0423794A - Escalator device - Google Patents

Abstract

PURPOSE:To improve the safety of a third wheelchair footstep at the time of operation for wheelchair by installing a holding metal fitting to a fork, and providing, the inner part of a wheelchair footstep, a holding mechanism for positioning and regulating the fork by the engagement with the holding metal fitting at the time of normal operation. CONSTITUTION:In the inner part of a second wheelchair footstep 13 is provided a holding mechanism for positioning and regulating by the engagement with the holding metal fitting 136, 136A of a fork 131 capable of protruding and recessing which is situated in the footstep 13 at the time of normal operation and projects into a third footstep 14 at the time of operation for wheelchair. The holding mechanism 137 conducts the positioning regulation of the fork 131 by pressing a steel ball into the groove of the holding metal fitting 136 at the time of normal operation and the steel ball into the groove of the metal fitting 136A at the time of operation for wheelchair. As the fork 131 is protrudingly moved to regulate the positioning at the time of operation for wheelchair, thus, the shaking of the fork 131 by a play between the rack of the fork 131 and an intermediate gear 168 is eliminated, and the safety of the footstep 14 is improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a structure of an escalator device equipped with steps for a wheelchair that transforms from a normal configuration during normal operation to a wheelchair configuration on which a wheelchair can be mounted. This is related to the improvement of.

(Prior Art) Figures 7 to 15 show a conventional escalator device equipped with steps for wheelchairs as disclosed in Japanese Patent Application Laid-Open No. 2-13594, etc. In the figures, (1) is the main body of the escalator. The main frame is a barrel, and on both sides of the main frame (1), as shown in Fig. 7, handrails (2) are erected, and the handrails (2) move in circulation based on the drive of a drive machine (not shown). Endless 6-motion handrail (3
) are arranged in a winding manner. The main frame (1) above is shown in Figures 7 and 8.
As shown in FIGS. 10, 11, and 14, an upper end (la) provided horizontally on the upper floor, a lower end (1b) provided horizontally on the lower floor, and an upper end (la) and the lower end (1b); an entrance floor (1d) consisting of a comb plate laid on the horizontal upper part of the upper end (la); It consists of an entrance floor (1e) consisting of a comb plate laid on the horizontal upper part of the lower end (1b).
As shown in Figure 4, a pair of L-shaped front wheel guide rails (
4) and a pair of L-shaped rear wheel guide rails (5) are arranged to face the longitudinal direction, and these pair of guide rails (4) and (5) together form the main frame (1). ) is formed with an endless circulation path in the internal longitudinal direction (see FIGS. 13 and 15, etc.).

(6) is a plurality of regular steps placed on the main frame (1), and a shaft (7) is installed horizontally in the upper front part of the regular steps (6) as shown in Figures 11 and 13. An endless chain (8) that circulates in synchronization with the handrail (3) based on the drive of the drive machine is connected to both sides of the shaft (7), and both ends of the shaft (A) A front wheel (9), which is engaged with and guided by a pair of front wheel guide rails (4), is rotatably attached to the portion. Further, a rear wheel (10) that is engaged with and guided by a pair of rear wheel guide rails (5) is rotatably attached to the lower portions of both sides at the rear of the normal step (6).

(11) is a group of wheelchair steps (11) interposed between a plurality of regular steps (6), and as shown in FIGS. 12), a second wheelchair step (13) located adjacent to the rear of the first wheelchair step (12), and a second wheelchair step (13) located adjacent to the rear of the second wheelchair step (13). a third wheelchair step (14), which circulates in the same manner as the normal step (6) when the escalator is in normal operation, and on which the wheelchair of a wheelchair user (15) can be mounted when the escalator is in operation. It has the ability to transform into a form.

The first wheelchair step (12) is as shown in FIG.
It consists of a main body (12G) and a sloped step (121) that is supported by the main body (120) and swings and tilts during wheelchair operation to avoid interference with the scaffolding of the wheelchair. In addition, the second wheelchair steps (13) are disposed on both sides of the upper part of the inside, and are guided by the plurality of fork guides (130) when operating the wheelchair, and pass through the through holes of the cleat riser on the back side to the outside. A pair of retractable forks (131) that protrude horizontally rearward, and this fork (131).
Rack (132) engraved on a part of the lower surface of 31)
It is composed of. and a third wheelchair step (1
4) consists of a movable treadle (141) supported on the main body (140) so as to be movable up and down, and a plurality of fork holders (142) attached to the front of the lower surface of the movable treadle (141).
A plurality of holes (143) are formed horizontally in the plurality of fork holders (142) and penetrated horizontally into the fork (131) when operating the wheelchair, and a plurality of holes (143) are provided inside and rearward of the movable treadle (141). A pair of retractable wheel stops (144) that penetrate the rear both sides of the road surface of the movable treadle (141) and protrude upward to the outside to restrict the movement of the wheels of the wheelchair when the wheelchair is operated.
).

(16) are the 1st, N2, and 3rd wheelchair steps (12).
(13) and (14) respectively, and this driving force transmission mechanism (16) operates during wheelchair operation to connect the first, second, and third wheelchair steps ( 12
), (13), and (14) from normal form to wheelchair form,
Alternatively, it has the function of transforming from a wheelchair form to a normal form.

Hereinafter, the structure of this driving force transmission mechanism (16) will be explained in detail using the second wheelchair step (13) as an example with reference to FIGS. 11 to 15. (160) is the second wheelchair step (13). (1
A pair of opposing bearings (16o) and (tea) are disposed inside the second wheelchair step (13). (161) is rotatably mounted on a shaft, and a normal rotation pinion (162) is fitted onto this pinion shaft (161). Moreover, a pair of opposing bearings (163) is arranged inside the second wheelchair step (13), and between the pair of bearings (163), a pinion shaft (161) is disposed. A binion shaft (164) located parallel and horizontally in the front is rotatably mounted, and the front part of the normal rotation binion (162) -
A reversing pinion (165) that meshes with the side is fitted. Furthermore, a pair of opposing bearings (1[i6) are arranged at the upper part of the inside of the second wheelchair step (13), and a pinion shaft is disposed between the pair of bearings (166) and (166). A horizontally long intermediate gear shaft (167) located horizontally directly above the fork (161) is rotatably mounted, and on the - side of the intermediate gear shaft (167) is a rack for one of the forks (131). (132) is fitted, and the other side of the intermediate gear shaft (167) is fitted with the rack (132) of the other fork (131) and the forward rotation pinion (162). An intermediate gear (168^) that interposes and meshes between them is fitted.

(17) and (17A) are in-process devices arranged inside the main frame (1) and located almost directly below the tips of the entrance/exit floors (1d) and (1e); these in-process devices (17) and (17A) operates during wheelchair operation to operate the driving force transmission mechanism (16), and the driving force transmission mechanism (16) is connected to the first, second and third wheelchair steps (12) and (13).・It has the function of making (14) perform a perverted operation.

The structure of this device (17) will be described in detail below with reference to FIG. 11. (170) is a bearing fixed inside the main frame (1), and this bearing (170) is equipped with a rack A shaft (171) is supported to be able to move up and down, and this rack shaft (171)
An L-shaped mounting plate (172) is attached to the top of the spindle (171), and this mounting plate (172) has an L-shaped mounting plate (172) that is oriented in the conveying direction to mesh with the forward rotation pinion (162) and rotate it clockwise. A rack (173) is attached. A motor (174) is disposed inside the main frame (1), and an output shaft (174a) of this motor (174) has a pinion that engages with the rack shaft (171) to move it up and down. (175) is fitted. In addition, the in-process device (
17A), as shown in FIG. 14, has the same structure as the loading device (17), except that the rack (173) engages with the reversing pinion (165) to rotate it clockwise.

(18) is a boarding day switch during ascending operation, which is arranged inside the main frame (1) and located at the lower end of the pair of rear wheel rails (5) on the return side; (19) is the main frame (20) is located inside (1) and located at the upper end of the outbound side of the pair of rear wheel rails (5), and (20) is located inside (1). A boarding day switch for descending operation is located at the upper end of the pair of rear wheel rails (5) on the return side. These switches (1
8), (19), (20), and (21) are configured as limit switches for position detection (see FIG. 8 and FIG. 1O).

(22) is an actuator disposed on the normal step (6A) located adjacent to the front of the first wheelchair step (12), and this actuator (22) is connected to the switch (18).
), (19), (20), and (21) to decelerate the escalator at a specific position, and also have the function of operating the in-process devices (17) and (17A). (See Figure 8 and Figure 1O).

(23) is a switch disposed at the upper and lower ends of the inner side of the handrail (2), and this switch (23) is a wheelchair operation changeover switch (23a) that switches the escalator from normal operation to wheelchair operation. The wheelchair operation start switch (23b) restarts the wheelchair steps (11) temporarily stopped at the entrance (see Fig. 7).

Next, the operation will be explained, and for convenience of explanation, the case of upward operation will be explained.

First, when the wheelchair user (15) who has come to the entrance floor (1e), which is the boarding entrance, operates the wheelchair operation selector switch (23a) of the switch (23), the actuator ( z2) comes into contact with the boarding date switch (18) to operate it, the escalator decelerates at a specific position, and the motor (174) of the loading device (17) is driven. When the motor (174) is driven, the binion (175) rotates to move the rack shaft (171) upward, and the rack (173) rises to a predetermined position.

Next, when the wheelchair step group (11) moves horizontally to the entrance/exit floor (1e) and the forward rotation pinion (1[i2) of the driving force transmission mechanism (16) sequentially engages with the rack (173), The driving force transmission mechanism (16) operates to transform the first and second wheelchair steps (12) and (13) from the normal configuration to the wheelchair configuration, forming part of the wheelchair configuration. To explain this transformation operation in detail using the second wheelchair step (13) as an example, the forward rotation pinion (162) that moves horizontally in the direction A shown in Figure 11 meshes with the rack (173) and moves in the direction B shown in the figure. rotates, reverses and the nion (165) rotates counterclockwise, and the intermediate gear (168) ・(
168^) rotates counterclockwise, and a pair of forks (1
31) protrudes and moves in the direction of the arrow shown in the figure. Then, the pair of forks (131) pass through the through holes of the cleat riser, pass through the holes (143) of the movable tread (141), and pass through the second forks (131).
The wheelchair step (13) and the movable step board (141) engage, and then the wheelchair step group (11) reaches the entrance floor (1e
) to -time stop. Note that the reversing pinion (165) rotates as described above, but does not perform any work. In addition, in the - time stop state, the inclined tread (121) of the first wheelchair step (12) is inclined, but the pair of wheel stops (1
44) is located recessed inside the movable footboard (141).

Next, the wheelchair user (15) moved the wheelchair to the entrance floor (1
e) to the treads of the movable treads (141) of the second wheelchair step 3) and the third wheelchair step (14), and turn the switch (23) on the wheelchair operation activation switch (23b).
), the escalator restarts and horizontally moves the wheelchair step group (11) in the transport direction, and the normal rotation pinion (182) of the third wheelchair step (14) moves to the rack (1
73) to operate the driving force transmission mechanism (16), and the wheel stopper (144) passes through both rear sides of the road surface of the movable footboard (141) to restrict the movement of the wheels of the wheelchair. Then, when the wheelchair step group (11) starts moving upward from horizontal movement, the movable step board (141) moves upward from the main body <140) as the second wheelchair step (13) rises.
It is located on the same horizontal plane as the tread of the wheelchair step (13), and the remainder of the wheelchair form is formed (see FIG. 9). Thereafter, however, the escalator speeds up and the motor (174) of the loading device (17) is driven in reverse to return the loading device (17) to its normal state.

Next, when the wheelchair step group (11) approaches the entrance floor (1d), which is the exit gate, the actuator (22) of the normal step (6A) contacts the exit day switch (19) and operates it, causing the escalator to is decelerated at a specific position, and the motor (174) of the loading device (17A) is driven in the same manner as described above to raise the rack (173) to a predetermined position. Then, when the wheelchair step (11) starts moving horizontally from the upward movement, the movable step plate (141) of the third wheelchair step (14) moves downward and is positioned on the same horizontal plane as the top surface of the main body (140). and release part of the wheelchair form.

Next, the wheelchair step group (11) moves horizontally onto the entrance/exit floor (1d), and when the reversing pinion (165) of the driving force transmission mechanism (16) successively engages with the rack (173), the driving force is transmitted. The mechanism (16) operates and the first, second and third
The wheelchair steps (12), (13), and (14) are transformed from the wheelchair configuration to the normal configuration. To explain this metamorphosis in detail using the second wheelchair step (13) as an example,
Figure 14 Reversing binion moving horizontally in the water inlet direction (165
) meshes with the rack (173) and rotates in the E direction in the figure, and the forward rotation binion (162) rotates in the C direction to rotate the intermediate gears (168) and (168A) clockwise.
The pair of forks (131) are retracted in the direction of the arrow shown in the figure to release the engagement with the adjustable am plate (141).

The wheelchair user (15) then moves the wheelchair from the second and third wheelchair steps (13) and (4) to the entrance/exit floor (1d). After that, the escalator speeds up and the motor (174) of the loading device (17A) is driven in reverse to return the loading device (17A) to its normal state, so that the wheelchair step group (11) changes from the normal step (
6) The robot moves in a circular manner in the same manner as in (6A), and repeats the above operations during wheelchair driving.

In addition to the above-mentioned publications, prior art documents of this type include Japanese Patent Laid-Open No. 19437/1983.

[Problems to be Solved by the Invention] The conventional niscalator device is configured as described above, and the second
A pair of forks (13) are installed inside the wheelchair steps (13).
1) Since no holding device was provided to hold the
Fork (131) with intermediate gear (168) (168A)
), and the stability of the third wheelchair step (14) during wheelchair operation was poor. Further, a lid body is attached to the tip of the fork (131), which closes the through hole of the cleat riser during normal operation and forms a part of the cleat riser flush. The problem was that the surface was not flush with the surface of the cleat riser during normal operation, impairing the design.

The present invention has been made in view of the above, and provides a niscalator device capable of improving the stability of the third wheelchair step during wheelchair operation and improving the design of the second wheelchair step. The purpose is to

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention includes a wheelchair step that is interposed between a plurality of normal steps of an escalator, and a wheelchair step that is arranged inside the wheelchair step and that is located inside the wheelchair step during normal operation. The wheelchair has a retractable fork that penetrates through a through hole on the back and protrudes to the outside during wheelchair operation, and a fork that is attached to the tip of the fork and forms a part of the back that closes the through hole during normal operation. Comprising a lid body,
Moreover, a retaining metal fitting is attached to the fork, and a holding mechanism is provided inside the wheelchair step to engage with the holding metal fitting and position and regulate the fork at least during normal operation.

(Function) According to the present invention, a holding fitting is attached to the fork, and a holding mechanism is provided inside the wheelchair step that engages with the holding fitting to position and regulate the fork at least during normal operation. It is possible to improve the stability of the third wheelchair step during wheelchair operation and to improve the design of the second wheelchair step.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in FIGS. 1 to N6. In the figures, (13) is the above-mentioned second wheelchair step; , which are disposed on both sides of the upper part of the inside thereof, and project horizontally to the rear outside through the through holes (134) of the cleat riser (133), which is the back side, while being guided by a plurality of fork guides (130) when operating the wheelchair. A pair of forks that can appear (131
), a rack (132) carved in a part of the lower surface of this fork (131), and a rack (132) that is attached to the tip of the fork (131) and that closes the through hole (134) during normal operation to close the cleat riser. (133) and a lid (135) which is formed flush with a part of the lid (133).

(136) and (136A) are the retaining metal fittings attached to the underside of the fork (131) that is not engraved on the rack (132). As shown, a substantially V-shaped groove (136a) is recessed.

(137) is a holding mechanism installed at the rear of the second wheelchair step (13) via an L-shaped mounting bracket (138), and this holding mechanism (137) is shown in Figs. 5 and 6. As shown, a substantially bullet-shaped cylindrical body (137a) and this cylindrical body (13
A steel ball (137b) arranged inside the cylinder body (137a) to close the hole at the tip of the cylinder body (137a), and a steel ball (137b) arranged inside the cylinder body (137a) to press the steel ball (137b) into the hole. It consists of a coiled spring (137C). During normal operation, the holding mechanism (137) is equipped with a holding metal fitting (1
31i), and the groove (136a) of the holding fitting (136A) when driving the wheelchair.
The fork (131) has a function of positioning and regulating the fork (131) by pressing and engaging a steel ball (137b) with the fork (131).

The other parts are the same as the conventional example.

Therefore, during normal operation, the holding mechanism (
The fork (1
31) and intermediate gears (168) and (16).
8A) is eliminated, and the surface of the lid body (135) is made flush with the surface of the cleat riser (133).

In addition, when the forward rotation pinion (162) of the second wheelchair step (13) that moves horizontally during wheelchair operation engages with the rack (173) of the loading device (17) at the gate, the fork (131) moves in the direction of the second arrow shown in the figure to release the engagement between the holding fitting (136) and the holding mechanism (137). And the second wheelchair step (13)
moves and the forward rotation pinion (162) and rack (17
3) When the engagement with the fork (131) is completed and the protruding movement of the fork (131) is completed and stopped, the steel ball (137b) of the holding mechanism (137) engages with the groove (136a) of the holding fitting (136A).
The protruding fork (131) is pressed against and engaged with the fork (131) to position and control the protruding fork (131) (see FIGS. 3 and 4).

As described above, according to the present invention, the holding mechanism (137) presses and engages with the holding fittings (136) and (136A) to regulate the positioning of the fork (131). The stability of the wheelchair steps (14) can be significantly improved. Further, since the surface of the lid (135) can be reliably flushed with the surface of the cleat riser (133), it is possible to significantly improve the design.

Since play due to backlash of the intermediate gears (158) and (188A) can be eliminated, it is possible to reliably eliminate the rattling of the gear (131) during normal operation, and also to It becomes possible to significantly stabilize the engagement state of the second and third wheelchair steps (13) and (14).

(Effects of the Invention) As described above, according to the present invention, a holding fitting is attached to the fork, and a holding fitting is provided inside the wheelchair step that engages with the holding fitting and regulates the positioning of the fork at least during normal operation. Because it is equipped with a mechanism, the third
An object of the present invention is to provide an escalator device that can improve the stability of the second wheelchair step and the design of the second wheelchair step.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the retired state of the fork of the escalator device according to the present invention, FIG. 2 is an explanatory diagram showing the fork in the protruding movement of the escalator device according to the present invention, and FIG. 3 is an explanatory diagram showing the escalator device according to the present invention. An explanatory diagram showing the protruding state of the fork of the device, FIG. 4 is a view taken along the line rV-rV in FIG. 3, FIG. 5 is a cross-sectional explanatory diagram showing the holding mechanism according to the present invention, and FIG. An explanatory view showing the engaged state of the holding fitting and the holding mechanism, FIG. 7 is an overall side view showing a conventional escalator device, FIG. 8 is an explanatory view showing a part of FIG. 7 on an enlarged scale, and FIG. The figure is an explanatory diagram showing a conventional group of wheelchair steps during upward movement; Figure 1O is an explanatory diagram showing an enlarged view of the
Figure 1 is an enlarged vertical cross-sectional view of the lower part of Figure 7, Figure 12 is a partially cutaway plan view taken along line > - Sectional view along the store line, No. 14
The figure is a longitudinal sectional view showing an enlarged upper part of FIG. 7, and FIG. 15 is a sectional view taken along the line XV-XV of FIG. 14. In the figure, (1) is the main frame, (6)・(6A is the normal step, (
11) is a group of wheelchair steps, (13) is a second wheelchair step, (14) is a third wheelchair step, (16) is a driving force transmission mechanism, and (17) and (178) are a mechanism device. , (131
) is fork, (133) is cleat riser, (13
4) is the through hole, (135) is the lid, (131+)・(
13[iA] is a holding metal fitting, and (137) is a holding mechanism. Note that the same reference numerals in the figures indicate the same or corresponding parts. Figure Figure Figure Figure! Revised diagram for chairs

Claims (1)

[Claims] A wheelchair step that is interposed between a plurality of normal steps of an escalator, and a wheelchair step that is arranged inside the wheelchair step and is located inside the wheelchair step during normal operation, and penetrates through a through hole on the back side during wheelchair operation. An escalator device comprising: a retractable fork that projects outward; and a lid that is attached to the tip of the fork and that closes the through hole during normal operation to form a part of the back surface. 1. An escalator device, wherein a holding fitting is attached to the wheel chair step, and a holding mechanism is provided inside the wheelchair step to engage with the holding fitting to position and regulate the fork at least during normal operation.